CN103862176A - Laser welding method of copper-based amorphous alloy and commercial metal alloy - Google Patents
Laser welding method of copper-based amorphous alloy and commercial metal alloy Download PDFInfo
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- CN103862176A CN103862176A CN201410133010.2A CN201410133010A CN103862176A CN 103862176 A CN103862176 A CN 103862176A CN 201410133010 A CN201410133010 A CN 201410133010A CN 103862176 A CN103862176 A CN 103862176A
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/32—Bonding taking account of the properties of the material involved
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/12—Copper or alloys thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the technical field of welding of copper-based amorphous alloy, in particular to a laser welding method of copper-based amorphous alloy and commercial metal alloy. The laser welding method comprises the steps that base materials to be welded of the copper-based amorphous alloy and the commercial metal alloy are prepared, a pulse laser or a continuous wave laser is used for enabling the commercial metal alloy and the copper-based amorphous alloy to reach respective melting points to be in a molten state and then to be connected under the protection of an inert atmosphere, and the copper-based amorphous alloy and the commercial metal alloy are welded without crystallization reaction; the commercial metal alloy contains one or two elements in elements contained in the copper-based amorphous alloy. Welding of the amorphous alloy and the commercial metal alloy can be achieved, namely welding of the amorphous alloy and crystal alloy is achieved, the welding strength of the copper-based amorphous alloy and the commercial metal alloy is high, so that the defect that the tapping process can not be achieved on the copper-based amorphous alloy easily is overcome, and the application range of the copper-based amorphous alloy is greatly widened.
Description
Technical field
The present invention relates to the welding technology field of cu-based amorphous alloys, particularly relate to the method for laser welding of cu-based amorphous alloys and commercial metal alloy.
Background technology
Non-crystaline amorphous metal is because having the good characteristic of the aspects such as intensity, hardness, toughness, wearability, corrosion resistance, soft magnetism and superconductivity, and it is all widely applied in fields such as electronics, machinery, chemical industry.Cu-based amorphous alloys is the one in non-crystaline amorphous metal, but because cu-based amorphous alloys exists difficult processing, hard-to-weld shortcoming, thereby greatly limit its range of application.Therefore, technological difficulties that are welded into non-crystaline amorphous metal application extension of cu-based amorphous alloys.
In prior art, application is zirconium-base amorphous alloy more widely, but the welding of zirconium-base amorphous alloy is only confined to the welding between zirconium-base amorphous alloy, for zirconium-base amorphous alloy material and foreign material, is especially difficult to realize with the welding of crystal metal.The method for resistance welding of disclosed a kind of non-crystal Zr-base blocks in CN1386605A, the method for laser welding of disclosed a kind of zirconium-based bulk amorphous alloy in CN101987396A, all only limits to the welding between non-crystalline material.In addition, the method for laser welding of disclosed a kind of amorphous substrate in CN102430862A, its specifically disclose between non-crystaline amorphous metal or non-crystaline amorphous metal and stainless steel between welding, although it discloses the welding between non-crystaline amorphous metal and stainless steel, but the parameter of its welding condition is selected very limitation.
In prior art, the welding between cu-based amorphous alloys is also difficult to realize, and industry generally believes that the welding of cu-based amorphous alloys and crystal metal can not realize.In actual applications, mainly adopt binder to connect being connected between cu-based amorphous alloys and crystal metal.But the bonding strength that some product needed is stronger, adopts adhesive to connect the bonding strength that just can not meet these products.In addition, owing to being difficult to realize tapping technique on cu-based amorphous alloys material, make to be difficult to realize on cu-based amorphous alloys product the structure of bolt, nut, and, if employing adhesive is by bolt, nut bonding connection on cu-base amorphous alloy product, its bonding strength can not meet the needs of production.Therefore, need the welding difficult problem solving between cu-based amorphous alloys and alloy crystalline badly, could expand the range of application of cu-based amorphous alloys material.
Summary of the invention
The object of the invention is to provide for weak point of the prior art the method for laser welding of cu-based amorphous alloys and commercial metal alloy.
For achieving the above object, the present invention is achieved through the following technical solutions.
The method for laser welding of cu-based amorphous alloys and commercial metal alloy is provided, comprise the commercial metal alloy of base material cu-based amorphous alloys to be welded and weldment, under inert atmosphere protection, adopt pulse laser or continuous wave laser that described commercial metal alloy and described cu-based amorphous alloys are reached respectively more than fusing point separately and engage to form molten state;
The selection principle of welding condition: take TTT figure as benchmark, select welding condition according to the thickness of cu-based amorphous alloys, to make cu-based amorphous alloys and commercial metal alloy complete welding under the situation that crystallization does not occur; Described commercial metal alloy contains a kind of element or the two kinds of elements in the contained element of described cu-based amorphous alloys.
Described commercial metal alloy is any one in copper alloy, titanium alloy, zircaloy, nickel alloy, copper beryllium alloy, corronil, albronze, copper-titanium alloy, nickel-zirconium alloys, signal bronze or stainless steel.
Welding manner is: cast or process raised structures at described cu-based amorphous alloys, and portal in described commercial metal alloy processing, described borehole jack is located at described raised structures or is arranged at the top of described raised structures, then adopts laser to make described hole and described raised structures all reach molten state and engages.
The hole wall in described hole has roughness.
The cross-sectional diameter of described raised structures is less than or equal to the diameter in described hole, and described borehole jack is located at described raised structures and is made to form gap or described raised structures and described hole between described raised structures and described hole and touch.
The width in described gap is 0 ~ 0.1mm.
The cross-sectional diameter of described raised structures is greater than the diameter in described hole, and described hole is arranged at the top of described raised structures; Horizontal spacing between the hole wall in described hole and the post jamb of described raised structures is 0.01mm ~ 0.05mm.
Described welding condition comprises laser form, laser power, speed of welding and inert atmosphere protection gas kinds and pressure.
The thickness of described cu-based amorphous alloys is in the situation of 0.1mm ~ 20mm; described laser form is pulse laser or continuous wave laser; described laser power is 0.1KW ~ 8KW, and described speed of welding is for being greater than 1mm/s, and described inert atmosphere protection gas pressure is 0.1 ~ 5MPa.
Described inert atmosphere is inert gas or nitrogen.
Wherein, TTT figure of the present invention refers to temperature-time transformation diagram, and TTT of the present invention schemes as shown in Figure 7.When heating curves reaches Tm(fusing point) more than after carry out coolingly, and heating curves and cooling curve all can not touch crystallization region 6.Wherein, in welding process, only otherwise touch crystallization region 6, zirconium-base amorphous alloy and commercial metal alloy do not occur to complete welding under the situation of crystallization, in crystallization region 7 not, select welding parameter all can, multiple welding parameter all can reach best weld strength.
Beneficial effect of the present invention:
(1) method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, can realize the welding between cu-based amorphous alloys and commercial metal alloy, realize the welding between cu-based amorphous alloys and alloy crystalline, and make the intensity of cu-based amorphous alloys and the welding of commercial metal alloy high.
(2) method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, due to the welding having realized between cu-based amorphous alloys and commercial metal alloy, bolt in commercial metal alloy, the structure of nut can be directly welded on cu-based amorphous alloys, thereby solve cu-based amorphous alloys and be difficult to realize the defect of tapping technique, significantly expanded the range of application of cu-based amorphous alloys.
(3) method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, there is laser weld parameter range of choice widely, the parameter range of choice of welding conditions is larger, be that the suffered restriction of welding condition is smaller, in welding process, take TTT figure as benchmark, only otherwise touch crystallization region, be that cu-based amorphous alloys and commercial metal alloy do not occur to complete welding under the situation of crystallization, multiple welding parameter all can reach best weld strength.
(4) utilize the method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, the intensity between the cu-based amorphous alloys welding and commercial metal alloy is up to 3.5KN.
(5) method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, the cu-based amorphous alloys welding and commercial metal alloy, utilize XRD(X x ray diffraction) analyze and metallography microscope sem observation welding position, find that noncrystal and crystal mixes the phenomenon existing, this phenomenon has illustrated between cu-based amorphous alloys and commercial metal alloy and has realized welding, and welding position has high strength.
(6) method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, has method simple, can be applicable to the feature of large-scale production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the commercial metal alloy weldment of the method for laser welding of cu-based amorphous alloys of the present invention and commercial metal alloy.
Fig. 2 is the structural representation of the cu-based amorphous alloys base material to be welded of the method for laser welding of cu-based amorphous alloys of the present invention and commercial metal alloy.
Fig. 3 is the structural representation of the welding manner between cu-based amorphous alloys and the commercial metal alloy of embodiment 1,3,5,7,9 and 11 of the method for laser welding of cu-based amorphous alloys of the present invention and commercial metal alloy.
Fig. 4 is the structural representation of the welding manner between cu-based amorphous alloys and the commercial metal alloy of embodiment 2,4,6,8 and 10 of the method for laser welding of cu-based amorphous alloys of the present invention and commercial metal alloy.
Fig. 5 is the XRD figure that utilizes the welding position between XRD analysis cu-based amorphous alloys and commercial metal alloy.
Fig. 6 utilizes metallographic microscope to amplify 100 times of result figure that carry out metallographic observation to the cross section of the welding position between cu-based amorphous alloys and commercial metal alloy.
Fig. 7 is the TTT figure of the method for laser welding of cu-based amorphous alloys of the present invention and commercial metal alloy.
In Fig. 1 to Fig. 7, include:
1---base material cu-based amorphous alloys to be welded, 11---raised structures, 101---post jamb,
2---commercial metal alloy, 21---hole, the 201---hole wall of weldment,
3---gap,
4---laser beam emitting device,
5---gas injection apparatus,
6---crystallization region,
7---not crystallization region.
The specific embodiment
The method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, comprise the commercial metal alloy of base material cu-based amorphous alloys to be welded and weldment, under inert atmosphere protection, adopt pulse laser or continuous wave laser that commercial metal alloy and cu-based amorphous alloys are reached respectively more than fusing point separately and engage to form molten state, and make cu-based amorphous alloys and commercial metal alloy complete welding under the situation that crystallization does not occur; Commercial metal alloy contains a kind of element or the two kinds of elements in the contained element of cu-based amorphous alloys, can realize the welding between cu-based amorphous alloys and commercial metal alloy.
Wherein, the selection principle of welding condition is: take TTT figure as benchmark, select welding condition according to the thickness of cu-based amorphous alloys, to make cu-based amorphous alloys and commercial metal alloy complete welding under the situation that crystallization does not occur; Welding condition comprises laser form, laser power, speed of welding and inert atmosphere protection gas kinds and pressure.
The method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, its concrete welding manner is: on cu-based amorphous alloys, process raised structures, and process and portal on commercial metal alloy, borehole jack is located at raised structures or is arranged at the top of raised structures, after employing laser makes hole and raised structures all reach molten state, engages.Wherein, raised structures of the present invention can be column structure, for example, be cylinder, square column.Certainly, raised structures of the present invention also can be other irregular structure, as long as can realize welding with commercial metal alloy.
Wherein, the hole wall in hole has roughness, thus welding process in, can increase the contact area of hole wall and raised structures, thus make between hole wall and raised structures be heated sooner and more even.
Wherein, laser sends by laser beam emitting device 4, and inert atmosphere sprays by gas injection apparatus 5.
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni is associated gold, and the commercial metal alloy of weldment is copper alloy.Wherein, the thickness of base material to be welded is 0.5mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, process raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 3, the cross-sectional diameter of the raised structures 11 of base material cu-based amorphous alloys 1 to be welded is less than the diameter in the hole 21 of the commercial metal alloy 2 of weldment, hole 21 be sheathed on raised structures 11 and make raised structures 11 and hole 21 between form gap 3.In the present embodiment, the width in gap 3 is 0.1mm.
The welding condition of the present embodiment comprises: inert atmosphere is helium, and laser form is pulse laser, and laser power is 1.5KW, and speed of welding is 15mm/s, and inert atmosphere protection gas pressure is 0.2MPa.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni-Sn is associated gold, and the commercial metal alloy of weldment is zircaloy.Wherein, the thickness of base material to be welded is 1mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, cast out raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 4, the cross-sectional diameter of raised structures 11 is greater than the diameter in hole 21, and hole 21 is arranged at the top of raised structures 11, and in the present embodiment, the lateral separation between the hole wall 201 in hole 21 and the post jamb 101 of raised structures 11 is 0.05mm.In the process of welding, in order to make the abundant seam in welding position between the commercial metal alloy 2 of base material cu-based amorphous alloys 1 to be welded and weldment, need to apply suitable upward pressure from the bottom of base material cu-based amorphous alloys 1 to be welded, this upward pressure is for the molten state of base material cu-based amorphous alloys 1 to be welded is pressed in hole 21 as squeezing toothpaste out of a tube, thereby makes the abundant seam in whole welding position.
The welding condition of the present embodiment comprises: inert atmosphere is neon, and laser form is pulse laser, and laser power is 1.5KW, and speed of welding is 10mm/s, and inert atmosphere protection gas pressure is 0.2MPa.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni is associated gold, and the commercial metal alloy of weldment is titanium alloy.Wherein, the thickness of base material to be welded is 1.5mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, process raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 3, the cross-sectional diameter of the raised structures 11 of base material cu-based amorphous alloys 1 to be welded is less than the diameter in the hole 21 of the commercial metal alloy 2 of weldment, hole 21 be sheathed on raised structures 11 and make raised structures 11 and hole 21 between form gap 3.In the present embodiment, the width in gap 3 is 0.05mm.
The welding condition of the present embodiment comprises: inert atmosphere is argon gas, and laser form is continuous wave laser, and laser power is 1.5KW, and speed of welding is 12mm/s, and inert atmosphere protection gas pressure is 0.2MPa.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni-Sn is associated gold, and the commercial metal alloy of weldment is nickel alloy.Wherein, the thickness of base material to be welded is 1.5mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, process raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 4, the cross-sectional diameter of raised structures 11 is greater than the diameter in hole 21, and hole 21 is arranged at the top of raised structures 11, and in the present embodiment, the lateral separation between the hole wall 201 in hole 21 and the post jamb 101 of raised structures 11 is 0.02mm.In the process of welding, in order to make the abundant seam in welding position between the commercial metal alloy 2 of base material cu-based amorphous alloys 1 to be welded and weldment, need to apply suitable upward pressure from the bottom of base material cu-based amorphous alloys 1 to be welded, this upward pressure is for the molten state of base material cu-based amorphous alloys 1 to be welded is pressed in hole 21 as squeezing toothpaste out of a tube, thereby makes the abundant seam in whole welding position.
The welding condition of the present embodiment comprises: inert atmosphere is Krypton, and laser form is continuous wave laser, and laser power is 1.5KW, and speed of welding is 12mm/s, and inert atmosphere protection gas pressure is 0.2MPa.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni is associated gold, and the commercial metal alloy of weldment is stainless steel.Wherein, the element that commercial stainless steel often contains comprises iron, carbon, chromium, nickel, manganese, silicon, molybdenum, titanium, niobium, titanium, manganese, nitrogen, copper, cobalt.In the present embodiment, the thickness of base material to be welded is 2mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, cast out raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 3, the cross-sectional diameter of the raised structures 11 of base material cu-based amorphous alloys 1 to be welded is less than the diameter in the hole 21 of the commercial metal alloy 2 of weldment, hole 21 be sheathed on raised structures 11 and make raised structures 11 and hole 21 between form gap 3.In the present embodiment, the width in gap 3 is 0.03mm.
The welding condition of the present embodiment comprises: inert atmosphere is xenon, and laser form is pulse laser, and laser power is 1.5KW, and speed of welding is 15mm/s, and inert atmosphere protection gas pressure is 1MPa.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni-Sn is associated gold, and the commercial metal alloy of weldment is copper beryllium alloy.Wherein, the thickness of base material to be welded is 0.1mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, process raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 4, the cross-sectional diameter of raised structures 11 is greater than the diameter in hole 21, and hole 21 is arranged at the top of raised structures 11, and in the present embodiment, the lateral separation between the hole wall 201 in hole 21 and the post jamb 101 of raised structures 11 is 0.03mm.In the process of welding, in order to make the abundant seam in welding position between the commercial metal alloy 2 of base material cu-based amorphous alloys 1 to be welded and weldment, need to apply suitable upward pressure from the bottom of base material cu-based amorphous alloys 1 to be welded, this upward pressure is for the molten state of base material cu-based amorphous alloys 1 to be welded is pressed in hole 21 as squeezing toothpaste out of a tube, thereby makes the abundant seam in whole welding position.
The welding condition of the present embodiment comprises: inert atmosphere is radon gas, and laser form is continuous wave laser, and laser power is 0.1KW, and speed of welding is 11mm/s, and inert atmosphere protection gas pressure is 3MPa.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni is associated gold, and the commercial metal alloy of weldment is corronil.Wherein, the thickness of base material to be welded is 20mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, cast out raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 3, the cross-sectional diameter of the raised structures 11 of base material cu-based amorphous alloys 1 to be welded is less than the diameter in the hole 21 of the commercial metal alloy 2 of weldment, hole 21 be sheathed on raised structures 11 and make raised structures 11 and hole 21 between form gap 3.In the present embodiment, the width in gap 3 is 0.07mm.
The welding condition of the present embodiment comprises: inert atmosphere is nitrogen, and laser form is pulse laser, and laser power is 8KW, and speed of welding is 14mm/s, and inert atmosphere protection gas pressure is 0.1MPa.
embodiment 8.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni-Sn is associated gold, and the commercial metal alloy of weldment is albronze.Wherein, the thickness of base material to be welded is 10mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, process raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 4, the cross-sectional diameter of raised structures 11 is greater than the diameter in hole 21, and hole 21 is arranged at the top of raised structures 11, and in the present embodiment, the lateral separation between the hole wall 201 in hole 21 and the post jamb 101 of raised structures 11 is 0.04mm.In the process of welding, in order to make the abundant seam in welding position between the commercial metal alloy 2 of base material cu-based amorphous alloys 1 to be welded and weldment, need to apply suitable upward pressure from the bottom of base material cu-based amorphous alloys 1 to be welded, this upward pressure is for the molten state of base material cu-based amorphous alloys 1 to be welded is pressed in hole 21 as squeezing toothpaste out of a tube, thereby makes the abundant seam in whole welding position.
The welding condition of the present embodiment comprises: inert atmosphere is helium, and laser form is continuous wave laser, and laser power is 5KW, and speed of welding is 5mm/s, and inert atmosphere protection gas pressure is 4MPa.
embodiment 9.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni is associated gold, and the commercial metal alloy of weldment is copper-titanium alloy.Wherein, the thickness of base material to be welded is 6mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, process raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 3, the cross-sectional diameter of the raised structures 11 of base material cu-based amorphous alloys 1 to be welded equals the diameter in the hole 21 of the commercial metal alloy 2 of weldment, hole 21 be sheathed on raised structures 11 and make raised structures 11 and hole 21 between touch, do not form gap 3.In the present embodiment, the width in gap 3 is 0mm.
The welding condition of the present embodiment comprises: inert atmosphere is neon, and laser form is pulse laser, and laser power is 3KW, and speed of welding is 13mm/s, and inert atmosphere protection gas pressure is 5MPa.
embodiment 10.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni-Sn is associated gold, and the commercial metal alloy of weldment is nickel-zirconium alloys.Wherein, the thickness of base material to be welded is 15mm, and the thickness of weldment is 1mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, cast out raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 4, the cross-sectional diameter of raised structures 11 is greater than the diameter in hole 21, and hole 21 is arranged at the top of raised structures 11, and in the present embodiment, the lateral separation between the hole wall 201 in hole 21 and the post jamb 101 of raised structures 11 is 0.01mm.In the process of welding, in order to make the abundant seam in welding position between the commercial metal alloy 2 of base material cu-based amorphous alloys 1 to be welded and weldment, need to apply suitable upward pressure from the bottom of base material cu-based amorphous alloys 1 to be welded, this upward pressure is for the molten state of base material cu-based amorphous alloys 1 to be welded is pressed in hole 21 as squeezing toothpaste out of a tube, thereby makes the abundant seam in whole welding position.
The welding condition of the present embodiment comprises: inert atmosphere is xenon, and laser form is continuous wave laser, and laser power is 6KW, and speed of welding is 14mm/s, and inert atmosphere protection gas pressure is 0.3MPa.
The base material cu-based amorphous alloys to be welded of the present embodiment is that Cu-Ti-Zr-Ni is associated gold, and the commercial metal alloy of weldment is signal bronze.Wherein, the thickness of base material to be welded is 13mm, and the thickness of weldment is 9mm.
See Fig. 1 and Fig. 2, on base material cu-based amorphous alloys 1 to be welded, cast out raised structures 11, and processing portals 21 on the commercial metal alloy 2 of weldment.In the present embodiment, see Fig. 3, the cross-sectional diameter of the raised structures 11 of base material cu-based amorphous alloys 1 to be welded is less than the diameter in the hole 21 of the commercial metal alloy 2 of weldment, hole 21 be sheathed on raised structures 11 and make raised structures 11 and hole 21 between form gap 3.In the present embodiment, the width in gap 3 is 0.09mm.
The welding condition of the present embodiment comprises: inert atmosphere is nitrogen, and laser form is pulse laser, and laser power is 4.5KW, and speed of welding is 11mm/s, and inert atmosphere protection gas pressure is 3.5MPa.
performance test
1, X-ray diffraction analysis
Welding position to cu-based amorphous alloys and copper alloy in embodiment 1 carries out X-ray diffraction analysis, sees Fig. 5, and this figure shows that welding portion has amorphous structure, has illustrated that cu-based amorphous alloys crystallization does not occur welding position before and after welding.
2, metallography microscope sem observation welding position
Utilize metallographic microscope to amplify 100 times to the cross section of the welding position between cu-based amorphous alloys and zircaloy in embodiment 2 and carry out metallographic observation, this figure shows that welding portion has amorphous structure, illustrates that cu-based amorphous alloys crystallization does not occur welding position before and after welding.
3, weld strength test
Structural member soldered in above-described embodiment 1 to 11 is carried out to pulling capacity test, record maximum pull-off force.Result is as shown in table 1.
Structural member soldered in above-described embodiment 1 to 11 is labeled as respectively to sample 1
#, 2
#, 3
#, 4
#, 5
#, 6
#, 7
#, 8
#, 9
#, 10
#with 11
#.
The strength test of soldered structural member in table 1 embodiment 1 to embodiment 11
| |
1 # | 2 # | 3 # | 4 # | 5 # | 6 # | 7 # | 8 # | 9 # | 10 # | 11 # |
| Maximum pull-off force/KN | 2.8 | 3.3 | 3.5 | 2.5 | 2.9 | 3.1 | 3.0 | 3.2 | 3.5 | 2.7 | 3.4 |
As shown in Table 1, adopt the method for laser welding of cu-based amorphous alloys provided by the invention and commercial metal alloy, can make the structural member after cu-based amorphous alloys and the welding of commercial metal alloy have very high intensity, its maximum pull-off force reaches 3.5KN.
Finally should be noted that; above embodiment is only for illustrating technical scheme of the present invention but not limiting the scope of the invention; although the present invention is explained in detail with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. the method for laser welding of cu-based amorphous alloys and commercial metal alloy, it is characterized in that: comprise the commercial metal alloy of base material cu-based amorphous alloys to be welded and weldment, under inert atmosphere protection, adopt pulse laser or continuous wave laser that described commercial metal alloy and described cu-based amorphous alloys are reached respectively more than fusing point separately and engage to form molten state;
The selection principle of welding condition: take TTT figure as benchmark, select welding condition according to the thickness of cu-based amorphous alloys, to make cu-based amorphous alloys and commercial metal alloy complete welding under the situation that crystallization does not occur; Described commercial metal alloy contains a kind of element or the two kinds of elements in the contained element of described cu-based amorphous alloys.
2. the method for laser welding of cu-based amorphous alloys according to claim 1 and commercial metal alloy, is characterized in that: described commercial metal alloy is any one in copper alloy, titanium alloy, zircaloy, nickel alloy, copper beryllium alloy, corronil, albronze, copper-titanium alloy, nickel-zirconium alloys, signal bronze or stainless steel.
3. the method for laser welding of cu-based amorphous alloys according to claim 1 and commercial metal alloy, it is characterized in that: welding manner is: cast or process raised structures at described cu-based amorphous alloys, and portal in described commercial metal alloy processing, described borehole jack is located at described raised structures or is arranged at the top of described raised structures, then adopts laser to make described hole and described raised structures all reach molten state and engages.
4. the method for laser welding of cu-based amorphous alloys according to claim 3 and commercial metal alloy, is characterized in that: the hole wall in described hole has roughness.
5. the method for laser welding of cu-based amorphous alloys according to claim 3 and commercial metal alloy, it is characterized in that: the cross-sectional diameter of described raised structures is less than or equal to the diameter in described hole, described borehole jack is located at described raised structures and is made to form gap or described raised structures and described hole between described raised structures and described hole and touch.
6. the method for laser welding of cu-based amorphous alloys according to claim 5 and commercial metal alloy, is characterized in that: the width in described gap is 0 ~ 0.1mm.
7. the method for laser welding of cu-based amorphous alloys according to claim 3 and commercial metal alloy, is characterized in that: the cross-sectional diameter of described raised structures is greater than the diameter in described hole, and described hole is arranged at the top of described raised structures; Horizontal spacing between the hole wall in described hole and the post jamb of described raised structures is 0.01mm ~ 0.05mm.
8. the method for laser welding of cu-based amorphous alloys according to claim 1 and commercial metal alloy, is characterized in that: described welding condition comprises laser form, laser power, speed of welding and inert atmosphere protection gas kinds and pressure.
9. the method for laser welding of cu-based amorphous alloys according to claim 8 and commercial metal alloy; it is characterized in that: in the situation that the thickness of described cu-based amorphous alloys is 0.1mm ~ 20mm; described laser form is pulse laser or continuous wave laser; described laser power is 0.1KW ~ 8KW; described speed of welding is for being greater than 1mm/s, and described inert atmosphere protection gas pressure is 0.1 ~ 5MPa.
10. the method for laser welding of cu-based amorphous alloys according to claim 1 and commercial metal alloy, is characterized in that: described inert atmosphere is inert gas or nitrogen.
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| CN110958928A (en) * | 2017-07-25 | 2020-04-03 | 住友电气工业株式会社 | Method for manufacturing welded structure of metal member, and welded structure of metal member |
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