Cermet cutter material, cutter and manufacture method

A cermet and tool material technology, applied in the direction of manufacturing tools, metal processing equipment, tools for lathes, etc., can solve the problems of low overall performance and service life of tools, low toughness, high brittleness, etc., to reduce production costs and High maintenance cost, high fracture toughness and flexural strength, and high ergonomics

Active Publication Date: 2018-01-16
DONGGUAN HUAJING POWDER METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to overcome the deficiencies of the prior art, to provide a cermet tool material, tool and manufacturing method, to solve the brittleness and low toughness of the cermet tool in the prior art, and to cause the overall performance and service life of the tool lower question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 1. Preparation of 10kg cermet powder raw material

[0059]Weigh 9.8kg cermet powder, including the following components in mass percentage: TiNC: 75%, Cr 2 C 3 :8%,MoC 2 : 1.2%, Ni: 13%, Y: 0.8%.

[0060] 1) The above powder is high-energy ball milled for 2 hours, and dried under vacuum after the ball milling is completed, the drying temperature is 70°C, and the drying time is 4 hours. 2) Add the molding agent PEG to the vacuum-dried system, spray and granulate it to form a compacted material, and then carry out pressurized molding with a pressure of 50 tons and a pressurized molding time of 2 minutes to obtain a green body. 3) The green body was sintered in a hot isostatic furnace at 1400°C for 8 hours, and finally the surface was roughly and finely ground, and the polished tool surface was polished with diamond abrasive paste, and the finished cermet tool was obtained.

[0061] Detect its performance and get: the hardness of the cermet cutter of this embodiment is...

Embodiment 2

[0063] 1. Preparation of 10kg cermet powder raw material

[0064] Weigh 9.8kg cermet powder, including the following components in mass percentage: TiNC: 78%, Cr 2 C 3 :6%, MoC 2 : 1.5%, Ni: 11.9%, Y: 0.6%

[0065] 1) The above powder is high-energy ball milled for 2 hours, and dried under vacuum after the ball milling is completed, the drying temperature is 70°C, and the drying time is 4 hours. 2) Add the molding agent PEG to the vacuum-dried system, spray and granulate it to form a compacted material, and then carry out pressurized molding with a pressure of 50 tons and a pressurized molding time of 2 minutes to obtain a green body. 3) The green body was sintered in a hot isostatic furnace at 1400°C for 8 hours, and finally the surface was roughly and finely ground, and the polished tool surface was polished with diamond abrasive paste, and toughened to obtain the finished cermet tool S2.

[0066] Detect its performance and get: the hardness of the cermet cutter of this ...

Embodiment 3

[0068] 1. Preparation of 10kg cermet powder feed

[0069] Weigh 9.8kg cermet powder, the composition of the material includes by mass percentage: TiNC:85%, Cr 2 C 3 :4%,MoC 2 : 1.5%, Ni: 7.1%, Y: 0.4%.

[0070] 1) The above powder is high-energy ball milled for 2 hours, and dried under vacuum after ball milling, the drying temperature is 70°C, and the drying time is 8 hours. 2) Add the molding agent PEG to the vacuum-dried system, spray and granulate it to form a compacted material, and then carry out pressurized molding with a pressure of 50 tons and a pressurized molding time of 2 minutes to obtain a green body. 3) The green body was sintered in a hot isostatic furnace at 1400°C for 8 hours, and finally the surface was roughly and finely ground, and the polished tool surface was polished with diamond abrasive paste, and the finished cermet tool was obtained.

[0071] Detect its performance and get: the hardness of the cermet cutter of this embodiment is 95HRA, and the be...

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Abstract

A cermet cutter material comprises, by mass percentage, 70-90% of TiNC, 4-10% of Cr2C3, 1-2% of MoC2, 4-20% of Ni, and 0.4-1% of Y. A cermet cutter is made from the cermet cutter material. A manufacture method of the cermet cutter comprises: S1, preparing raw materials according to the formula of the cermet cutter material; S2, grinding the raw materials into powder, and drying the powder; S3, adding a forming agent to powder and performing granulation; S4, performing compression moulding to granules to obtain a cutter blank; S5, sintering the blank; and S6, performing coarse grinding, fine grinding and polishing to the sintered product to obtain the cermet cutter. The cutter made from the cermet cutter material is high in hardness, large in fracture toughness and flexure strength, and good in oxidation resistance and durability.

Description

technical field [0001] The invention relates to a cermet cutting tool material, a cutting tool and a manufacturing method. Background technique [0002] Metal aluminum and stainless steel have become key casing materials for smart phones and smart watches. CNC processing is the main method. At present, there are nearly 300,000 CNCs serving 3C products. The main tool used for CNC processing aluminum and stainless steel casings is imported tungsten steel. , the price is expensive, and the toughness of the knife is easy to wear, which affects the production efficiency. The cutting tool has become the main cost of CNC industry processing. Improving the service life of the cutting tool is an urgent requirement of the CNC industry. There are many kinds of tool materials. According to statistics, the main tool materials are still high-speed steel and cemented carbide materials. However, from the perspective of development trend, the proportion of cermet tool materials is increasing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/04B22F5/00B22F3/16B23B27/14B23C5/00
Inventor 王落平谢庆丰彭毅萍
Owner DONGGUAN HUAJING POWDER METALLURGY
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