CN111618089B - System and method for rolling bulk amorphous alloy with laser assistance - Google Patents
System and method for rolling bulk amorphous alloy with laser assistance Download PDFInfo
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- CN111618089B CN111618089B CN202010473130.2A CN202010473130A CN111618089B CN 111618089 B CN111618089 B CN 111618089B CN 202010473130 A CN202010473130 A CN 202010473130A CN 111618089 B CN111618089 B CN 111618089B
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 206
- 238000005096 rolling process Methods 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 39
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 41
- 239000000956 alloy Substances 0.000 claims abstract description 41
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 239000013526 supercooled liquid Substances 0.000 claims description 13
- 239000012071 phase Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 16
- 238000003466 welding Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 abstract description 9
- 239000007791 liquid phase Substances 0.000 abstract description 6
- 238000004781 supercooling Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 229910002482 Cu–Ni Inorganic materials 0.000 description 1
- -1 amorphous Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011165 process development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/024—Forging or pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/16—Two-phase or mixed-phase rolling
Abstract
The invention relates to a system for rolling a large amorphous alloy by laser assistance, which comprises a rolling system and a laser system. The rolling system comprises a workbench and a clamping roller; the two amorphous alloys are clamped between the workbench and the clamping press roller; the clamping compression roller rolls and moves in parallel along the direction of the workbench by driving so as to roll the two amorphous alloys to form a large amorphous alloy; and the laser system is in linkage connection with the rolling system and is positioned above the rolling system. When the laser-assisted system for rolling the massive amorphous alloy finishes work in the supercooling liquid phase region of the amorphous alloy, the amorphous alloy can not be crystallized, so that the amorphous state of the material before and after rolling the amorphous alloy is ensured, the performance of the amorphous alloy can not be influenced, and the defect of material performance reduction caused by the traditional welding method is overcome; the invention also provides a method for realizing laser-assisted rolling of the bulk amorphous alloy by using the system for laser-assisted rolling of the bulk amorphous alloy.
Description
Technical Field
The invention relates to the technical field of amorphous alloy welding, in particular to a system and a method for rolling a large amorphous alloy by laser assistance.
Background
The amorphous alloy has the characteristics of metal, amorphous, solid and liquid, and is a subversive new generation high-performance metal material. However, the amorphous alloy has insufficient forming ability, and it is difficult to mass-produce large-sized amorphous alloy components by the conventional casting and solidification method and further process the components into products with complex shapes, so that the application of the components in practical production is greatly limited.
The supercooled liquid region is one of the major indexes for measuring the performance of amorphous alloy. The amorphous alloy has the characteristics of superplasticity, high diffusivity and the like in the supercooled liquid phase region, and when the temperature of the amorphous alloy is reduced to room temperature from the supercooled liquid phase region, the amorphous alloy cannot change.
Currently, amorphous alloys are manufactured mainly by die casting, and the size is mostly limited to millimeter level. The fabrication of larger size amorphous alloys is mainly formed by the interconnection welding between multiple pieces of amorphous alloy. Patent CN201510375044.7 discloses a method for solid-liquid connection of heterogeneous bulk amorphous alloys, which comprises the steps of preparing bulk amorphous alloy ingots a and B respectively, and then adopting a solid-liquid connection method to realize solid-liquid connection of bulk amorphous alloys a and B in a mold with a bracket inside. Patent CN201510509650.3 discloses a method for preparing a centimeter-sized Ce-Ga-Cu-Ni bulk amorphous alloy, wherein the amorphous prepared by the preparation method has a large size and superplastic forming capability of nearly 100 ℃, which is beneficial to wide application of the amorphous alloy in precision parts and micro-nano processing, but the method depends on a traditional trial and error method, has long process development time, is easy to cause material performance reduction, and has limited amorphous alloy forming capability.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, provides a system for laser-assisted rolling of bulk amorphous alloys, which overcomes the defect of material performance reduction caused by the traditional welding method, and also provides a method for laser-assisted rolling of bulk amorphous alloys, which is realized by using the system for laser-assisted rolling of bulk amorphous alloys.
In order to achieve the purpose, the invention adopts the following scheme:
a system for laser-assisted rolling of bulk amorphous alloys, comprising:
the rolling system comprises a workbench and a clamping roller; the two amorphous alloys are clamped between the workbench and the clamping press roller; the clamping compression roller rolls and moves in parallel along the direction of the workbench by driving so as to roll the two amorphous alloys to form a large amorphous alloy;
and the laser system is in linkage connection with the rolling system and is positioned above the rolling system.
Further, the laser system comprises a laser generating device and a focusing module; and the laser generating device and the focusing module are both positioned above the rolling system.
Furthermore, the workbench is formed by laying a flat plate or a plurality of roller shafts capable of driving rolling.
The invention also provides a method for rolling the bulk amorphous alloy with the aid of the laser, which is realized by using the system for rolling the bulk amorphous alloy with the aid of the laser.
Further, the method for rolling the bulk amorphous alloy by the aid of the laser comprises the following specific steps of clamping the amorphous alloy A and the amorphous alloy B on a rolling system, operating the rolling system and a laser system, and rolling the amorphous alloy A and the amorphous alloy B to form the bulk amorphous alloy:
s1, clamping an amorphous alloy A and an amorphous alloy B between a workbench and a clamping press roller, and adjusting the initial processing position of a workpiece;
s2, calculating required laser parameters according to a crossed supercooled liquid region of the amorphous alloy A and the amorphous alloy B and outputting laser beams;
s3, adjusting the incident angle of the laser beam;
s4, preheating a laser beam at a working contact interface of the amorphous alloy A and the amorphous alloy B;
s5, working of a rolling system, wherein a clamping press roller rolls and moves in parallel along the direction of the workbench under the driving of the clamping press roller, and the amorphous alloy A and the amorphous alloy B are rolled into a whole;
s6, repeating the steps S3-S5 to finish the rolling of the amorphous alloy A and the amorphous alloy B to form a large amorphous alloy.
Further, the amorphous alloy A and the amorphous alloy B are same or different amorphous alloys with cross supercooled liquid regions.
Further, the relative distance between the clamping pressure roller and the workbench is slightly smaller than the sum of the thicknesses of the amorphous alloy A and the amorphous alloy B.
Furthermore, the clamping compression roller rolls and moves in parallel along the X direction, and the moving distance is 0-20 mm; the rolling angle of the clamping press roller is 0-360 degrees; the rolling speed of the clamping compression roller is 0-500 rpm.
Further, the wavelength range of the laser beam is 0.35 to 10.60 μm; the pulse width range of the laser beam is 0-200 ns; the output power of the laser system is 0-100W; the frequency range of the laser system is 2-150 kHz; the defocusing amount of the laser system is-3 mm.
Further, the incident angle of the laser beam is 0 0 ～90°。
Compared with the prior art, the invention has the following advantages:
1. the system for rolling the bulk amorphous alloy by the aid of the laser is provided with a rolling system and a laser system, the amorphous alloy to be rolled is clamped between a workbench and a clamping roller of the rolling system, the rolling system is in linkage connection with the laser system, working contact interfaces of the two amorphous alloys are preheated in real time by a laser beam of the laser system to enable the temperature to reach the temperature of a cross supercooled liquid phase region of the two amorphous alloys, at the moment, the two amorphous alloys have the characteristics of superplasticity, high diffusivity and the like, the clamping roller is driven by a driving mechanism of the rolling system to move in parallel along one direction of the workbench to roll and roll the working contact interfaces of the two amorphous alloys to be connected together, the temperature is reduced, an integral amorphous alloy block is formed, and the rolling work of the bulk amorphous alloy is finished by analogy. When the system for rolling the massive amorphous alloy under the assistance of the laser finishes work in the supercooling liquid phase region of the amorphous alloy, the amorphous alloy can not be crystallized, the amorphous state of the material before and after rolling the amorphous alloy is ensured, the performance of the amorphous alloy can not be influenced, and the defect of material performance reduction caused by the traditional welding method is overcome.
2. The system for rolling the bulk amorphous alloy by the aid of the laser beam of the laser system preheats the bulk amorphous alloy by the aid of the laser beam of the laser system, and is high in temperature rise and working efficiency.
3. The system for rolling the bulk amorphous alloy by laser-assisted rolling has high flexibility and simple process.
Drawings
The present application will be described in further detail with reference to the drawings and the following detailed description.
FIG. 1 is a schematic structural diagram of example 1 of rolling a bulk amorphous alloy by the system for laser-assisted rolling of a bulk amorphous alloy according to the present invention.
FIG. 2 is a schematic structural diagram of example 2 of the system for laser-assisted rolling of bulk amorphous alloys according to the present invention for rolling bulk amorphous alloys.
FIG. 3 is a schematic structural diagram of example 3 in which the system for laser-assisted rolling of bulk amorphous alloys according to the present invention forms bulk amorphous alloys by rolling.
The figure includes:
the device comprises a rolling system 1, a workbench 11, a flat plate 121, a roll shaft 122, a clamping press roll 12, a laser system 2, a laser generating device 21, a focusing module 22, an amorphous alloy A3 and an amorphous alloy B4.
Detailed Description
The present application is further described in conjunction with the following examples.
A system for rolling a large amorphous alloy by laser assistance comprises a rolling system 1 and a laser system 2. The rolling system 1 comprises a workbench 11 and a clamping roller 12. Wherein, two amorphous alloys are clamped between the workbench 11 and the clamping press roller 12; the clamping press roller 12 rolls and moves parallelly along the direction of the workbench 11 by driving to press and roll the two amorphous alloys to form a large amorphous alloy block; specifically, the clamping press roll 12 is driven by a driving mechanism of the press system 1. The drive mechanism may be an electric motor and a transmission mechanism connected to an output shaft of the electric motor. The laser system 2 is in linkage connection with the rolling system 1 and is located above the rolling system 1. The amorphous alloy clamped between the workbench 11 and the clamping press roller 12 is preheated by the laser beam of the laser system 2, so that the temperature is quickly raised, and the working efficiency is high. Because the laser system 2 and the rolling system 1 have linkage, after the laser beam of the laser system 2 is preheated, the rolling system 1 starts to work immediately, and the rolling process of the rolling system 1 can promote mutual extrusion and flowing of the two amorphous alloys, so that the bonding connection between the two amorphous alloys can be effectively realized.
Therefore, the system for laser-assisted rolling of the bulk amorphous alloy clamps the amorphous alloy to be rolled between the workbench 11 and the clamping roller 12 of the rolling system 1 by arranging the rolling system 1 and the laser system 2, and is linked and connected with the rolling system 1 and the laser system 2, the working contact interfaces of the two amorphous alloys are preheated in real time by using the laser beam of the laser system 2 to ensure that the temperature reaches the temperature of the cross supercooling liquid phase region of the two amorphous alloys, at the moment, the two amorphous alloys have the characteristics of superplasticity, high diffusivity and the like, the clamping roller 12 is driven by the driving mechanism of the rolling system 1 to roll and move in parallel along the direction of the workbench 11 so as to roll and roll the working contact interfaces of the two amorphous alloys to be connected together, the temperature is reduced to form an integral amorphous alloy block, and the rolling work of the bulk amorphous alloy is finished by analogy. When the laser-assisted rolling system for the large amorphous alloy is used for finishing work in the supercooling liquid phase region of the amorphous alloy, the amorphous alloy cannot be crystallized, the amorphous state of materials before and after rolling the amorphous alloy is ensured, the performance of the amorphous alloy cannot be influenced, and the defect of material performance reduction caused by the traditional welding method is overcome. Meanwhile, the system for laser-assisted rolling of the bulk amorphous alloy has high flexibility and simple process.
The laser system 2 comprises a laser generating device 21 and a focusing module 22; the laser generating device 21 and the focusing module 22 are both located above the rolling system 1. Two amorphous alloy work contact interfaces are accurately positioned through the focusing module 22, the laser generating device 21 is used for exciting laser beams, amorphous alloys are accurately preheated, the temperature rise is fast, and the working efficiency is high.
In the present embodiment, the table 11 is a table 11 formed by laying a flat plate 121 or a plurality of rollers 122 capable of driving rolling. According to the requirement, when the workbench 11 is the workbench 11 formed by laying the flat plate 121, the workbench 11 is used for supporting the amorphous alloy, the power is provided by the rolling clamping roller 12, the clamping roller 12 and the workbench 11 act together, and the two amorphous alloys are rolled to form the bulk amorphous alloy, so that the amorphous state of the materials before and after rolling the amorphous alloy can be ensured, the performance of the amorphous alloy cannot be influenced, and the defect of material performance reduction caused by the traditional welding method is overcome. When the workbench 11 is formed by laying a plurality of rolling shafts 122, the workbench 11 is used for supporting amorphous alloy, but the rolling shafts 122 and the rolling clamping rollers 12 provide power together, and rolling two amorphous alloys to form a large amorphous alloy helps to ensure amorphous state of materials before and after rolling the amorphous alloy, so that the performance of the amorphous alloy is not affected, the defect of material performance reduction caused by a traditional welding method is overcome, and meanwhile, the production efficiency is improved.
The invention also provides a method for rolling the bulk amorphous alloy with the assistance of the laser, which is realized by using the system for rolling the bulk amorphous alloy with the assistance of the laser, wherein the method for rolling the bulk amorphous alloy with the assistance of the laser clamps the amorphous alloy A3 and the amorphous alloy B4 on the rolling system 1, operates the rolling system 1 and the laser system 2, and rolls the amorphous alloy A3 and the amorphous alloy B4 to form the bulk amorphous alloy. The method for rolling the bulk amorphous alloy by the aid of the laser comprises the steps that an amorphous alloy A3 and an amorphous alloy B4 which need to be rolled are clamped between a workbench 11 and a clamping roller 12 of a rolling system 1 and are in linkage connection with each other through the rolling system 1 and a laser system 2, a laser beam of the laser system 2 is used for preheating a working contact interface of the amorphous alloy A3 and the amorphous alloy B4 in real time to enable the temperature to reach the cross supercooling liquid phase region temperature of the amorphous alloy A3 and the amorphous alloy B4, at the moment, the amorphous alloy A3 and the amorphous alloy B4 have the characteristics of superplasticity, high diffusivity and the like, a driving mechanism of the rolling system 1 drives the clamping roller 12 to roll and move in parallel along one direction of the workbench 11 to roll and roll the working contact interface of the amorphous alloy A3 and the amorphous alloy B4 to be connected together, the temperature is reduced to form an integral amorphous alloy block, and the process of rolling the bulk amorphous alloy is finished by analogy. When the system for rolling the massive amorphous alloy under the assistance of the laser finishes work in the supercooling liquid phase region of the amorphous alloy, the amorphous alloy can not be crystallized, the amorphous state of the material before and after rolling the amorphous alloy is ensured, the performance of the amorphous alloy can not be influenced, and the defect of material performance reduction caused by the traditional welding method is overcome.
Preferably, the amorphous alloy A3 and the amorphous alloy B4 are same or different amorphous alloys with cross supercooled liquid region. The method for preparing the bulk amorphous alloy with the assistance of the laser is suitable for different types of amorphous alloys, and has high flexibility and wide preparation range.
The method for rolling the massive amorphous alloy by the aid of the laser comprises the following specific steps:
s1, clamping the amorphous alloy A3 and the amorphous alloy B4 between a workbench 11 and a clamping press roller 12, and adjusting the initial processing position of the workpiece.
S2, required laser parameters are calculated according to the crossed supercooled liquid region of the amorphous alloy A3 and the amorphous alloy B4, and laser beams are output. The wavelength range of the laser beam is 0.35-10.60 mu m; the pulse width range of the laser beam is 0-200 ns; the output power of the laser system 2 is 0-100W; the frequency range of the laser system 2 is 2-150 kHz; the defocusing amount of the laser system 2 is-3 mm.
And S3, adjusting the incident angle of the laser beam. The incident angle of the laser beam is 0 0 ～90°。
And S4, preheating the laser beam at the working contact interface of the amorphous alloy A3 and the amorphous alloy B4.
And S5, operating the rolling system 1, driving the clamping press roller 12 to roll and move in parallel along the direction of the workbench 11, and rolling the amorphous alloy A3 and the amorphous alloy B4 into a whole. The clamping compression roller 12 rolls and moves parallelly along the X direction, and the moving distance is 0-20 mm; the rolling angle of the clamping press roller 12 is 0-360 degrees; the rolling speed of the clamping compression roller 12 is 0-500 rpm.
S6, repeating the steps S3-S5 to finish the rolling of the amorphous alloy A3 and the amorphous alloy B4 to form a large amorphous alloy. In this embodiment, after the step S5, the method for preparing a bulk amorphous alloy by laser-assisted method further includes:
s7, repeating the steps S1-S6, and also finishing the rolling of the amorphous alloy C and the massive amorphous alloy rolled into a single block.
Preferably, the relative distance between the clamping pressure roller and the worktable 11 is slightly smaller than the sum of the thicknesses of the amorphous alloy A3 and the amorphous alloy B4. The relative distance between the clamping pressure roller and the workbench 11 is slightly smaller than the sum of the thicknesses of the amorphous alloy A3 and the amorphous alloy B4, so that the amorphous alloy A3 and the amorphous alloy B4 are favorably rolled to form an integral bulk amorphous alloy, the compactness of the bulk amorphous alloy is better, and the defects of the bulk amorphous alloy are avoided.
The bulk amorphous alloys formed by the phase rolling between the same or different amorphous alloys of examples 1 to 3 can be completed by the above-mentioned method of laser-assisted rolling of bulk amorphous alloys.
Example 1:
in example 1, as shown in fig. 1, an amorphous alloy A3 and an amorphous alloy B4 were clamped between a table 11 and a clamping roller 12, and the initial clamping position was adjusted, and the composition of the amorphous alloy A3 was zr41.2ti13.8cu12.5ni10be22.5. Wherein Tg is 349 ℃ and Tx is 426 ℃. The composition of the amorphous alloy B4 is Zr44Ti11Cu10Ni10Be25. Wherein Tg is 350 ℃ and Tx is 471 ℃. The temperature is set to 400 ℃ during calculation and processing according to the crossed supercooled liquid region of the amorphous alloy A3 and the amorphous alloy B4, and then laser beams with the output wavelength of 1030nm, the pulse width of 170fs, the power of 3W and the frequency of 100kHz are calculated, the laser beams are preheated along the working contact interface of the amorphous alloy A3 and the amorphous alloy B4, meanwhile, the clamping press roller 12 rolls relative to a working table 11 formed by laying the flat plate 121, the amorphous alloy A3 and the amorphous alloy B4 are pressed and rolled into a whole, and the process is repeated to finish the pressing and rolling of the whole large amorphous alloy.
Example 2:
in example 2, as shown in fig. 2, an amorphous alloy A3 and an amorphous alloy B4 were clamped between a table 11 and a clamping roller 12, and the initial clamping positions were adjusted, and the amorphous alloy A3 and the amorphous alloy B4 were zr58.5nb2.8cu15.6ni12.8al10.3. Wherein Tg is 400 ℃ and Tx is 480 ℃. The temperature is set to 450 ℃ according to the calculation processing of the crossed supercooled liquid region of the amorphous alloy A3 and the amorphous alloy B4, laser beams with the wavelength of 355nm, the pulse width of 20ns, the power of 4W and the frequency of 100kHz are calculated and output, the laser beams are preheated along the working contact interface of the amorphous alloy A3 and the amorphous alloy B4, meanwhile, the clamping press roller 12 rolls relative to a working platform 11 formed by laying a plurality of roller shafts 122 capable of driving the rolling, the clamping press roller 12 and the roller shafts 122 roll, the amorphous alloy A3 and the amorphous alloy B4 are rolled into a whole, the process is repeated, and the rolling of the whole large amorphous alloy is completed.
Example 3:
in example 3, as shown in fig. 3, in order to realize the bonding between the amorphous alloy A3 and the amorphous alloy B4, a microstructure is processed on the surfaces of the amorphous alloy A3 and the amorphous alloy B4, and then the bulk amorphous alloy is subjected to laser-assisted rolling by clamping the amorphous alloy A3 and the amorphous alloy B4 between a worktable 11 and a clamping roller 12 and adjusting the initial clamping position as described in example 1, wherein the amorphous alloy A3 and the amorphous alloy B4 both have the composition zr58.5nb2.8cu15.6ni12.8al10.3. Wherein Tg is 400 ℃ and Tx is 480 ℃. The temperature is set to 450 ℃ according to the calculation processing of the crossed supercooled liquid region of the amorphous alloy A3 and the amorphous alloy B4, and then laser beams with the output wavelength of 355nm, the pulse width of 20ns, the power of 4W and the frequency of 100kHz are calculated, the laser beams are preheated along the working contact interface of the amorphous alloy A3 and the amorphous alloy B4, meanwhile, the clamping press roller 12 rolls relative to a working platform 11 formed by laying the flat plate 121, the amorphous alloy A3 and the amorphous alloy B4 are pressed and rolled into a whole, and the process is repeated to finish the pressing and rolling of the whole large amorphous alloy.
The laser-assisted rolling method for the bulk amorphous alloy is used for finishing the work of the bulk amorphous alloy formed by the phase rolling between the same or different amorphous alloys in the embodiments 1-3, the amorphous alloy can not be crystallized, the amorphous state of the materials before and after the preparation of the amorphous alloy is ensured, the performance of the amorphous alloy can not be influenced, and the defect of the reduction of the material performance caused by the traditional welding method is overcome.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (1)
1. The method for rolling the bulk amorphous alloy in the laser-assisted mode is characterized by being achieved by using a system for rolling the bulk amorphous alloy in the laser-assisted mode, wherein the system for rolling the bulk amorphous alloy in the laser-assisted mode comprises a rolling system and a laser system, and the rolling system comprises a workbench and a clamping compression roller; the two amorphous alloys are clamped between the workbench and the clamping press roller; the clamping compression roller rolls and moves in parallel along the direction of the workbench by driving so as to roll the two amorphous alloys to form a large amorphous alloy; the laser system is in linkage connection with the rolling system and is positioned above the rolling system;
the method for rolling the massive amorphous alloy by the aid of the laser comprises the following specific steps of clamping the amorphous alloy A and the amorphous alloy B on a rolling system, operating the rolling system and a laser system, and rolling the amorphous alloy A and the amorphous alloy B to form the massive amorphous alloy:
s1, clamping an amorphous alloy A and an amorphous alloy B between a workbench and a clamping press roller, and adjusting the initial processing position of a workpiece;
s2, calculating required laser parameters according to the crossed supercooled liquid region of the amorphous alloy A and the amorphous alloy B and outputting laser beams;
s3, adjusting the incident angle of the laser beam;
s4, preheating a laser beam at a working contact interface of the amorphous alloy A and the amorphous alloy B;
s5, working of a rolling system, wherein a clamping press roller rolls and moves in parallel along the direction of the workbench under the driving of the clamping press roller, and the amorphous alloy A and the amorphous alloy B are rolled into a whole;
s6, repeating the steps S3-S5 to finish the rolling of the amorphous alloy A and the amorphous alloy B to form a large amorphous alloy; the amorphous alloy A and the amorphous alloy B are same or different amorphous alloys with cross supercooled liquid phase regions; the clamping press roller rolls and moves parallelly along the X direction, and the moving distance is 0-20 mm; the rolling angle of the clamping press roller is 0-360 degrees; the rolling speed of the clamping compression roller is 0-500 rpm; the wavelength range of the laser beam is 0.35-10.60 mu m; the pulse width range of the laser beam is 0-200 ns; the output power of the laser system is 0-100W; the frequency range of the laser system is 2-150 kHz; the defocusing amount of the laser system is-3 mm; the incident angle of the laser beam is 0-90 degrees.
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