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A composite punch and its preparation method

A punch and assembly direction technology, applied in chemical instruments and methods, cleaning methods and utensils, cleaning methods using liquids, etc., can solve the problems that the mechanical properties and service life of composite punches cannot meet the requirements of industrial production, and prevent Crack generation, impact relief, and improved cushioning effect

Active Publication Date: 2022-05-17
江苏博联硕焊接技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a composite punch and its preparation method to solve the technical problem in the prior art that the mechanical properties and service life of the composite punch are difficult to meet the requirements of industrial production

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  • A composite punch and its preparation method
  • A composite punch and its preparation method
  • A composite punch and its preparation method

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention discloses a composite punch and a preparation method thereof, and relates to the technical field of dissimilar material welding. The composite punch includes a punch body, an intermediate layer and a substrate welded in sequence. Adding an intermediate layer between the punch body and the substrate can inhibit the formation of brittle compounds at the interface and reduce the hazard of joint residual stress; the thickness of the intermediate layer is from the center to the edge Gradual reduction can not only improve the welding strength of the joint at the edge of the intermediate layer, prevent cracks, but also allow the intermediate layer to absorb more impact loads, relieve the impact force on the composite punch, and make the composite punch better in mechanical properties And longer life. In the preparation method of the composite punch, the diffusion of the intermediate layer is used to complete the welding, which can prevent the formation of brittle intermediate metal at the joint, reduce the difference in linear expansion coefficient between the punch body and the matrix, and obtain a welded joint with good quality and no overheating structure and Heat-affected zone, parameters are easy to control, joint quality and performance are stable during mass production.

Description

technical field [0001] The invention relates to the technical field of welding of dissimilar materials, in particular to a composite punch and a preparation method thereof. Background technique [0002] Cemented carbide has excellent properties such as high hardness, corrosion resistance, and wear resistance, and is widely used in the manufacture of punch parts. However, due to its poor toughness, high brittleness and difficulty in processing, in practical applications, it is often necessary to weld cemented carbide with high-speed steel with good toughness, high strength, excellent processability and low cost to make composite punches. The composite punch can combine the advantages of the two materials, and has the advantages of high hardness, high wear resistance and good impact toughness. [0003] The performance of the composite punch mainly depends on the quality of the joint between cemented carbide and high-speed steel. Due to the large difference in the linear expan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D37/10B08B3/12F26B21/00B23K20/02B23K20/14B23K20/22B23K20/24
CPCB21D37/10B08B3/12F26B21/00B23K20/025B23K20/14B23K20/24B23K20/22
Inventor 王桂龙孙福张昊邵长斌王蒙蒙王莉敏
Owner 江苏博联硕焊接技术有限公司
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