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Processing method for alloy

A processing method and alloy technology, applied in the field of alloy processing, can solve the problems of difficult application, crystallization effect, deterioration of the performance of amorphous alloy materials, etc. Effect

Inactive Publication Date: 2015-07-01
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although amorphous alloys have excellent deformability in the supercooled liquid region, and many methods for forming in the supercooled liquid region have been disclosed, because amorphous alloys are metastable materials, improper heating during processing And cooling can easily cause the crystallization behavior of the material, which greatly deteriorates the material properties of the amorphous alloy
At the same time, the requirement to control rapid heating and cooling also makes the forming process and equipment of amorphous alloys extremely complicated, making it difficult to apply in practical engineering
The improvement of the existing amorphous alloy processing method is to adopt the overall temperature control of the amorphous alloy to be processed, which has the defects of high energy consumption, easy to cause crystallization of the amorphous alloy material, and affect the performance of the processed material.

Method used

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Embodiment 1

[0030] This example is used to illustrate the processing method of the alloy of the present invention.

[0031] will be composed of Zr 52 Cu 30 al 10 Ni 7 Er 1 The amorphous alloy was prepared into an amorphous plate of 200mm×200mm×3mm. The glass transition temperature of the amorphous alloy is 430° C., the crystallization temperature is 500° C., the hardness is 500 HV, and the tensile strength is 1800 MPa.

[0032] (1) Place the amorphous plate on the processing machine tool, and use VMC1580 vertical machining center for processing. First use the material as W 12 Cr 4 V 5 co 5 The metal friction material is used to preheat the part to be processed of the amorphous alloy by friction. The metal friction material is made of a metal round bar with a diameter of 15mm, and the roughness of the friction surface of the metal friction material is Ra100. The friction surface is parallel to the surface of the part to be processed of the amorphous alloy, the rotation speed of ...

Embodiment 2

[0038] This example is used to illustrate the processing method of the alloy of the present invention.

[0039] will be composed of Zr 52 Cu 30 al 10 Ni 7 Y 1 The amorphous alloy was prepared into an amorphous plate of 200mm×200mm×3mm. The glass transition temperature of the amorphous alloy is 430° C., the crystallization temperature is 500° C., the hardness is 500 HV, and the tensile strength is 1800 MPa.

[0040] (1) Place the amorphous plate on the processing machine tool, and use VMC1580 vertical machining center for processing. First use the material as W 12 Cr 4 V 5 co 5 The metal friction material is used to preheat the part to be processed of the amorphous alloy by friction. The metal friction material is made of a metal round rod with a diameter of 15mm, and the roughness of the friction surface of the metal friction material is Ra80. The friction surface is parallel to the surface of the part to be processed of the amorphous alloy, the rotation speed of th...

Embodiment 3

[0046] will be composed of Zr 52 Cu 3 0Al 10 Ni 7 Y 1 The amorphous alloy was prepared into an amorphous plate of 200mm×200mm×3mm. The glass transition temperature of the amorphous alloy is 430° C., the crystallization temperature is 500° C., the hardness is 500 HV, and the tensile strength is 1800 MPa.

[0047] (1) Place the amorphous plate on the processing machine tool, and use VMC1580 vertical machining center for processing. First use the material as W 12 Cr 4 V 5 co 5 The metal friction material is used to preheat the part to be processed of the amorphous alloy by friction. The metal friction material is made of a metal round bar with a diameter of 15mm, and the roughness of the friction surface of the metal friction material is Ra120. The friction surface is parallel to the surface of the part to be processed of the amorphous alloy, the rotation speed of the friction surface is 4000rpm, and the feed rate of the metal friction material is manually controlled. ...

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Abstract

The invention discloses a processing method for alloy. The method comprises the following steps: (1) heating a to-be-processed part of the alloy; (2) subjecting the heated to-be-processed part in the step (1) to machining or press working; and (3) cooling the to-be-processed part having been processed in the step (2); wherein a temperature reached after heating is in a range of the glass transition temperature of the alloy to the crystallization temperature of the alloy, a heating manner is contact friction heating of the to-be-processed part of the alloy, and the alloy is amorphous alloy or a mixture of the amorphous alloy and nanocrystalline alloy. With the processing method provided by the invention, damage to a processing tool can be avoided, the service life of a processing die and a cutter is prolonged, and processing cost for materials is reduced.

Description

technical field [0001] The invention relates to a processing method of an alloy, more specifically, to a processing method of an amorphous alloy or a mixture of an amorphous alloy and a nanocrystalline alloy. Background technique [0002] Amorphous alloys have been a research hotspot since they were first discovered in 1960. In the 1990s, the multi-element alloying method was adopted to reduce the critical cooling rate of amorphous alloys, realize the preparation of bulk amorphous alloys, and make the engineering application of such materials possible. Amorphous alloys have a structure of short-range order and long-range disorder, which makes them have excellent mechanical properties such as high strength, high hardness, high elastic limit, and wear resistance. Although the structural characteristics of amorphous alloys provide excellent materials for engineering applications, they also greatly limit the reprocessing and manufacturing of such alloy materials, including loca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D8/00C22F1/00C22C45/00C22C45/10
Inventor 张法亮
Owner BYD CO LTD