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Multiple M genus cemented carbide

A cemented carbide and multi-component technology, which is applied in the field of cemented carbide cutting tool materials, can solve problems such as difficult machining, and achieve the effects of improved bonding phase, high hardness and good red hardness

Active Publication Date: 2010-06-09
牡丹江工具有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of low cutting efficiency and short tool life of cemented carbide tools in the prior art, the present invention provides a multi-component M-type cemented carbide, which can obtain high processing efficiency and high service life, thus solving the difficult machining problem of stainless steel cutting

Method used

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specific Embodiment approach 1

[0009] Embodiment 1: The composition (percentage by weight) of the multi-component M-type cemented carbide cutting tool material in this embodiment is as follows: hard phase TiC: 4-10wt.%, hard phase TaC: 5-12wt.%, hard phase TiN: 0.5-4wt.%, binder phase Co: 7-12wt.%, hard phase WC: balance.

[0010] The processing method is as follows: TiC is added in the form of WC-TiC compound solid solution powder, with a particle size of 2-6 microns; TaC is added in the form of ≤3 micron TaC powder; TiN is added in the form of ≤4 micron TiN powder; WC is added in the form of 1-3 micron WC powder Add in the form; Co is added in the form of 1-2 micron Co powder. Put the raw material powder into the ball mill, mix and grind finely to obtain alloy powder, then mix the alloy powder with glue and press it into a 5×5×30mm test rod and a blade for cutting test, and then degummed the pressed product before loading Put it into a vacuum sintering furnace and sinter at 1480-1500°C for 60 minutes to ...

specific Embodiment approach 2

[0011] Specific embodiment two: The difference between this embodiment and specific embodiment one is that the composition (percentage by weight) of the multi-element M-type cemented carbide tool material is as follows: hard phase TiC: 5-7wt.%, hard phase TaC : 6-8wt.%, hard phase TiN: 1-2wt.%, binder phase Co: 8-9.5wt.%, hard phase WC: balance.

specific Embodiment approach 3

[0012] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the composition (percentage by weight) of the multi-component M-type cemented carbide cutting tool material is as follows: hard phase TiC: 7.5-9.5wt.%, hard phase TaC: 9-11 wt.%, hard phase TiN: 2.5-3.5 wt.%, binder phase Co: 10-11.5 wt.%, hard phase WC: balance.

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Abstract

The utility model discloses a multi-component M-type hard alloy which relates to a hard alloy cutting tool material. To solve the problem that the prior hard alloy tool has low stainless steel cuttingefficiency and short service life, the multi-component M-type hard alloy of the invention is processed with the following components: 4 weight percent to 10 weight percent of hard-phase Tic, 5 weightpercent to 12 weight percent of hard-phase TaC, 0.5 weight percent to 4 weight percent of hard-phase TiN, 7 weight percent to 12 weight percent of binding-phase Co, and the rest is hard-phase WC. Compared with the prior M-type products, the product of the invention has three characteristics: first, the service strength is enough, which avoids tool breakage in cutting, second, the anti-galling property in cutting is very good, and third,red hardness is excellent.

Description

technical field [0001] The invention relates to a cemented carbide cutting tool material, in particular to an M-type cemented carbide cutting tool material containing multiple components of WC-TiC-TaC-TiN-Co. Background technique [0002] As we all know, the cemented carbide tool materials in the prior art are divided into three categories: P, M and K according to the international ISO standard: WC-TiC-Co ternary alloy or WC-TiC-Ta(Nb)C-Co quaternary Alloys are collectively called P-type hard alloys, which are suitable for cutting ferrous metals such as carbon steel and alloy steel; WC-TiC (a small amount)-Ta(Nb)C-Co quaternary alloy is called M-type hard alloys, which are suitable for steel , cast steel, austenitic steel, cast iron, etc., due to its wide applicability, it is generally called universal or universal cemented carbide in our country; WC-Co or WC-Ta(Nb)C (a small amount)- Co binary alloys are called K-type hard alloys, which are generally suitable for the proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C29/08
Inventor 史洪林李福春邱涛
Owner 牡丹江工具有限责任公司
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