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Cutting edge processing method, component with cutting edge and tool with cutting edge

A processing method and edge technology, applied in the field of edge processing, can solve problems such as low hardness, and achieve the effect of improving cutting life and strength

Active Publication Date: 2019-10-25
HANGZHOU GREAT STAR IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects that existing blades and stainless steel knives cannot make the cutting edge have greater hardness and wear resistance on the basis of relatively low hardness and high toughness of the substrate, Provided are a cutting edge processing method, a cutting edge component and a cutting edge tool

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as Figure 8 As shown, it is a manufacturing process flow chart of a blade based on high carbon tool steel (including but not limited to T8, T8Mn, T9, T10, T11, T12, T13, etc.). Figure 1-2 As shown, its cutting edge is used to cut objects, and the entire blade can be mounted on the knife and easily replaced.

[0058] As shown in the manufacturing process flow chart of the blade, it includes the processing method of the blade edge, which specifically includes the following steps:

[0059] 1) Cutting from strip-shaped high-carbon tool steel raw materials as the substrate; if necessary, engraving and printing on the substrate;

[0060] 2) Quenching the matrix as a whole;

[0061] 3) Temper the substrate as a whole;

[0062] 4) Grinding and sharpening the base body, and alternately performing laser quenching and grinding on the cutting edge;

[0063] 5) Temper the whole substrate at low temperature;

[0064] Finally, the blades are oiled, packaged, and ready to be ...

Embodiment 2

[0076] Such as Figure 9 Shown is a manufacturing process flow chart of a tool with a stainless steel cutting edge based on martensitic stainless steel (including but not limited to 20Cr13, 30Cr13, 40Cr13, 50Cr15MoV, 68Cr17, 95Cr18, 90Cr18MoV, etc.), such tools include Such as image 3 folding knife, Figure 4 scissors, Figure 5 the pliers, Figure 6 the cutting knife, Figure 7 The shovel and the single knife, dagger, etc. not shown in the figure, the cutting edge of this type of tool is used for cutting, shearing, scraping objects, etc., and the components with the cutting edge are the spare parts that constitute this type of tool. for assembly into tools.

[0077] Such as Figure 9 As shown, it includes the processing method of the component edge, which specifically includes the following steps:

[0078] 1) The matrix is ​​cut from martensitic stainless steel raw materials;

[0079] 2) Quenching the matrix as a whole;

[0080] 3) Temper the substrate as a whole; ...

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Abstract

The invention discloses a cutting edge processing method, a component with a cutting edge and a tool with the cutting edge, and belongs to a cutting edge processing technology. An existing blade and astainless steel cutter cannot enable a cutting edge to have higher hardness and higher wear resistance on the basis that a base body has relatively low hardness and relatively high toughness. The method comprises the steps of alternately carrying out laser quenching and grinding on the cutting edge, so that a hardened layer is formed on the surface layer of the cutting edge, and the hardness of the hardened layer is improved by 4-5 HRC compared with the hardness of the base body. Compared with a blade with a conventional cutting edge, the cutting life of a blade subjected to laser quenching is improved by 2-3 times. In the case of the grain diameter of a steel and iron material at the cutting edge part which is subjected to refined through laser quenching, the grain size grade reaches 10-11 grade, and the strength of the cutting edge part is improved.

Description

technical field [0001] The invention relates to cutting edge processing technology, in particular to a cutting edge processing method, a component with a cutting edge and a tool with a cutting edge. Background technique [0002] Traditional blades used on utility knives mostly use high-carbon tool steel (including but not limited to T8, T8Mn, T9, T10, T11, T12, T13, etc.) , and then assembled and shipped after grinding. Under normal circumstances, the blade is only subjected to a heat treatment (including quenching and tempering) in an atmosphere protection heating furnace. The heating rate, cooling and quenching speed are relatively slow. After quenching, the grain size of the blade is relatively coarse, and the grain size level is 7-9. Level or so, lower intensity. The hardness of each area on the entire blade (including cutting edge and base body) is nearly uniform. However, since more grinding heat will be generated when grinding the cutting edge, it will cause a temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/18C21D1/09C21D1/18C21D7/08
CPCC21D1/09C21D1/18C21D7/08C21D9/18C21D2221/02
Inventor 王伟毅庄绪锋
Owner HANGZHOU GREAT STAR IND CO LTD
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