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Numerical control blade for heavy-load machining and preparation method thereof

A blade and mass fraction technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of difficult balance between toughness and hardness of materials, low toughness, and increased cost, so as to meet the performance requirements of cutting tools, reduce magnetic saturation, and improve durability. The effect of grinding performance

Active Publication Date: 2018-12-28
OKE PRECISION CUTTING TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These processes have higher requirements on raw materials, which increases the cost of production
Moreover, for CNC blades, the higher the hardness of the material, the lower its toughness, and it is difficult to balance the toughness and hardness of the material.

Method used

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  • Numerical control blade for heavy-load machining and preparation method thereof
  • Numerical control blade for heavy-load machining and preparation method thereof
  • Numerical control blade for heavy-load machining and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] This embodiment provides a method for preparing a CNC blade for heavy-duty machining, the steps of which are as follows:

[0034] S1. Take Co, TNC8, TiCN, (TI, W) C and WC respectively, wherein the mass fraction of Co is 8%, the mass fraction of TNC8 is 3.8%, and the mass fraction of TiCN is 0.8%, (TI, W) The mass fraction of C is 4.4%;

[0035] S2. The raw materials weighed in step S1 are added with 2% polyethylene glycol by weight of the raw materials, mixed evenly, and put into an inclined ball mill for ball milling for 15 hours;

[0036] S3 is granulated and pressed in the mixture obtained by ball milling in step S2, and then sintered. The sintering process is as follows: put the material into a sintering furnace with a hydrogen atmosphere, and heat up from 25°C to 180°C at a uniform speed for the first 30 minutes, and then heat up at a constant speed for 30 minutes. to 310°C, followed by 60min uniform heating to 370°C, then 270min uniform heating to 380°C, then 12...

Embodiment 2

[0039] This embodiment provides a method for preparing a CNC blade for heavy-duty processing, the steps of which are as follows:

[0040] S1. Take Co, TNC8, TiCN, (TI, W) C and WC respectively, wherein the mass fraction of Co is 8%, the mass fraction of TNC8 is 3.8%, and the mass fraction of TiCN is 0.8%, (TI, W) The mass fraction of C is 4.4%;

[0041] S2. The raw material weighed in step S1 is added to the polyethylene glycol of 2% by weight of the raw material, and after mixing evenly, put it into an inclined ball mill for ball milling for 13 hours, and mix the ball-milled powder evenly;

[0042]S3 is granulated and pressed in the mixture obtained by ball milling in step S2, and then sintered. The sintering process is as follows: put the material into a sintering furnace with a hydrogen atmosphere, and heat up from 25°C to 180°C at a uniform speed for the first 30 minutes, and then heat up at a constant speed for 30 minutes. to 310°C, followed by 60min uniform heating to 3...

Embodiment 3

[0045] This embodiment provides a method for preparing a CNC blade for heavy-duty machining, the steps of which are as follows:

[0046] S1. Take Co, TNC8, TiCN, (TI, W) C and WC respectively, wherein the mass fraction of Co is 8%, the mass fraction of TNC8 is 3.8%, and the mass fraction of TiCN is 0.8%, (TI, W) The mass fraction of C is 4.4%;

[0047] S2. The raw material weighed in step S1 is added to the polyethylene glycol of 2% by weight of the raw material, and after mixing evenly, put it into an inclined ball mill for ball milling for 11 hours, and mix the ball-milled powder evenly;

[0048] S3 is granulated and pressed in the mixture obtained by ball milling in step S2, and then sintered. The sintering process is as follows: put the material into a sintering furnace with a hydrogen atmosphere, and heat up from 25°C to 180°C at a uniform speed for the first 30 minutes, and then heat up at a constant speed for 30 minutes. to 310°C, followed by 60min uniform heating to 3...

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Abstract

The invention relates to the field of numerical control blades, in particular to a numerical control blade for heavy-load machining and a preparation method thereof. The numerical control blade comprises a hard alloy basal body and a coating, and the thickness of a release beta layer on the hard alloy basal body is 1-5 [mu]m. The hard alloy basal body is composed of Co, TNC8, TiCN, (TI,W) C and WC. A preparation method of the numerical control blade comprises the following steps that the Co, the TNC8, the TiCN, the (TI,W) C and the WC are correspondingly weighed and taken; the prepared Co, theTNC8, the TiCN, the (TI,W) C, the WC and a forming agent are mixed uniformly, then the mixture is placed into a ball mill machine for ball-milling after pelleting, pressing and sintering are carriedout on the mixture after the ball-milling, and the hard alloy basal body is obtained; and the surface of the prepared hard alloy basal body is coated with a CVD coating, then sand blasting treatment is carried out, and the numerical control blade for the heavy-load machining is obtained. The prepared numerical control blade has better abrasion resistance and impact resistance, and can meet the requirement of the heavy-load machining.

Description

technical field [0001] The invention relates to the field of numerical control blades, and more particularly, to a numerical control blade for heavy-duty machining and a preparation method thereof. Background technique [0002] CNC inserts are the general term for indexable turning inserts, which are mainly used in metal turning, milling, parting and grooving, thread turning and other fields. In the process of machining, CNC blades must have high high temperature hardness and wear resistance, necessary bending strength, impact toughness and chemical inertness, and are not easy to deform. [0003] In the prior art, the following three methods are mainly used to improve the toughness of cemented carbide: adopt ultra-fine C grains, increase WC grain size, and increase the binder phase content. These processes have higher requirements on raw materials, which increases the cost of production. Moreover, for CNC blades, the higher the hardness of the material, the lower its tough...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/02B22F1/00B22F3/02B22F3/10B22F3/24B22F5/00
CPCC22C29/005C22C29/02B22F3/02B22F3/10B22F3/24B22F5/00B22F2003/242B22F2005/001B22F2998/10B22F1/10
Inventor 唐小强刘钢袁美和谭文清
Owner OKE PRECISION CUTTING TOOLS CO LTD
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