Cutting part and manufacturing method thereof

Abstract

The invention discloses a manufacturing method of a cutting part. The cutting part is provided with a first part for supporting, a second part for forming a cutting edge and a third part for connecting the two parts; and the manufacturing method comprises the following steps: a first metal material for forming the first part is provided; a second metal material for forming the second part is provided; the first metal material and the second metal material are welded through a high-energy beam, and the third part is formed in the welded place; and a cutting part blank obtained after welding isheated. The invention further provides the cutting part; the first part is formed by the first metal material; the second part is formed by the second metal material; and after welding, the third partand nearby metallographical structures basically contain no hole. The cutting part obtained by adopting the manufacturing process has the characteristics of good toughness of a cutter body, high hardness of the cutting edge, difficult separation of the cutter body and the cutter edge and long service life.

Description

Technical field [0001] The present invention relates to a cutting component, in particular to a cutting component formed by welding metal materials, the supporting part of which has high toughness and the cutting edge part has high hardness and high wear resistance. The invention also relates to a manufacturing method of this cutting material. Background technique [0002] The cutting component is used to cut objects, and usually includes various forms such as blades and saw blades, and generally includes a supporting part and a cutting edge part. The supporting part functions to support the cutting edge part, and the cutting edge part can be used for cutting. Take the blade as an example, the supporting part is the blade body, and the cutting edge part is the cutting edge. Conventional blades are generally made of a single material, such as cutting and grinding of multiple monolithic materials to form a finished blade. Such blades have uniform toughness and hardness or wear re...

AI Technical Summary

Problems solved by technology

However, the blade made of high hardness material has poor toughness and is easy to break when the blade is in use

If a material with better toughness is used in order to improve the toughness of the blade, the hardness of the cutting edge made of this material will become worse, which will reduce the wear resistance of the cutting edge and shorten the service life.

If the selected material is between high hardness and high toughness, only a balance between the toughness of the blade body and the hardness of the edge can be obtained, but neither of them can achieve the best effect.

Other cutting components have similar flaws as blades

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