Manufacturing process of hard alloy replaceable tool

A cemented carbide and manufacturing process technology, applied in the field of tool manufacturing, can solve the problems of complex production process, low cutting finish, waste of raw materials, etc., and achieve the effect of simple process, good toughness, and reduced danger and pollution

Inactive Publication Date: 2018-12-28
MAANSHAN HENGLIDA MACHINE BLADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing cemented carbide replaceable tool is manufactured by mixing and grinding the raw material powder, using the press forming method to prepare the powder compact, and then sintering and densifying it into a cemented carbide product, and then according to the requirements and hopes of various aspects to obtain the final product precision, the Grinding, eroding or polishing the sintered body, not only the production process is complicated, the cost is high, and the waste of raw materials is serious
In addition, cemented carbide replaceable tool products have low toughness, poor wear resistance, low cutting finish, and short service life

Method used

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  • Manufacturing process of hard alloy replaceable tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A manufacturing process of a cemented carbide replaceable tool, comprising the following steps:

[0026] (1) Prepare raw materials: 60 parts of tungsten carbide, 10 parts of tungsten boride, 6 parts of vanadium pentoxide, 4 parts of chromium powder, 3 parts of cobalt powder, 2.5 parts of nickel powder, 1.7 parts of rhenium powder, 2.5 parts of zirconium dioxide, titanium dioxide 1.5 parts, 4 parts of triglyceride vegetable oil, 2.5 parts of rubber powder, 1.5 parts of surfactant;

[0027] (2) Add the above-mentioned raw materials into a stirring ball mill, and add 200 parts of absolute ethanol, and stir and grind for 4 hours to obtain a slurry;

[0028] (3) The above-mentioned slurry is dried and sieved, then 50 parts of fully refined paraffin wax is added and fully stirred to obtain material granules, and then 4.5 parts of zinc stearate are added to the material granules to carry out molding, extrusion, and injection molding;

[0029] (4) Place the formed blank in a v...

Embodiment 2

[0032] A manufacturing process of a cemented carbide replaceable tool, comprising the following steps:

[0033] (1) Prepare raw materials: 62 parts of tungsten carbide, 11 parts of tungsten boride, 7 parts of vanadium pentoxide, 5 parts of chromium powder, 3 parts of cobalt powder, 2.6 parts of nickel powder, 1.7 parts of rhenium powder, 2.8 parts of zirconium dioxide, titanium dioxide 1.7 parts, 4 parts of triglyceride vegetable oil, 2.9 parts of rubber powder, 1.8 parts of surfactant;

[0034] (2) Add the above raw materials into a stirring ball mill, and add 210 parts of absolute ethanol, and stir and grind for 4 hours to obtain a slurry;

[0035] (3) The above-mentioned slurry is dried and sieved, and then 52 parts of fully refined paraffin wax are added and fully stirred to obtain pellets, which are then molded, extruded, and injection molded after adding 4.8 parts of zinc stearate to the pellets;

[0036] (4) Place the formed blank in a vacuum sintering integrated furna...

Embodiment 3

[0039] A manufacturing process of a cemented carbide replaceable tool, comprising the following steps:

[0040] (1) Prepare raw materials: 65 parts of tungsten carbide, 13 parts of tungsten boride, 7 parts of vanadium pentoxide, 5 parts of chromium powder, 4 parts of cobalt powder, 2.7 parts of nickel powder, 1.7 parts of rhenium powder, 2.9 parts of zirconium dioxide, titanium dioxide 1.7 parts, 6 parts of triglyceride vegetable oil, 4 parts of rubber powder, 1.6 parts of surfactant;

[0041] (2) Add the above-mentioned raw materials into a stirring ball mill, and add 220 parts of absolute ethanol, and stir and grind for 4 hours to obtain a slurry;

[0042] (3) The above-mentioned slurry is dried and sieved, then 55 parts of fully refined paraffin wax are added and fully stirred to obtain material granules, and then 5.2 parts of zinc stearate are added to the material granules to carry out molding, extrusion, and injection molding;

[0043] (4) Place the formed blank in a va...

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Abstract

The invention relates to the technical field of tool manufacturing, in particular to a manufacturing process of a hard alloy replaceable tool. The manufacturing process of a carbide replaceable tool comprises the following steps that preparing the raw materials, adding the raw materials to the an agitating ball mill, adding anhydrous ethanol, stirring and grinding for 4 hours to obtain a slurry; drying the slurry, sieving, and then adding the fully refined paraffin and stirring well to obtain a pellet, and then the pellet after adding zinc stearate, molding, extrusion, and injection molding; placing the formed blank in a vacuum sintering integrated furnace, and introducing argon gas, followed by sintering; and sintering the blank on a lathe. After the initial processing of the tool, the quenching heat treatment is performed after the initial processing, and the blank after the quenching and heat treatment is finished on the grinding machine, and then nano WC-Co super-hard composite coating is sprayed on the surface of the tool by using the electric spark surface cladding device. The manufacturing process of the hard alloy replaceable tool has high hardness, good toughness, stable quality, is not easy to be broken, and has simple process and is suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a manufacturing process of cemented carbide replaceable cutting tools. Background technique [0002] Cemented carbide is an alloy material made of hard compounds of refractory metals and bonding metals through powder metallurgy. Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance. Cemented carbide is widely used as tool material, such as turning tools, milling cutters, planers, drills, boring tools, etc., for cutting cast iron, non-ferrous metals, plastics, chemical fibers, graphite, glass, stone and ordinary steel, and can also be used for cutting Difficult-to-machine materials such as heat-resistant steel, stainless steel, high manganese steel, and tool steel. [0003] The existing cemented carbide replaceable tool is manufactured by mixing and grinding the ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/02B22F1/00B22F3/22B22F3/10B22F3/24B22F5/00
CPCC22C29/02B22F3/1007B22F3/225B22F3/24B22F5/00B22F2003/248B22F2005/001B22F2998/10B22F1/10
Inventor 杨威谢敏张增明朱凌云
Owner MAANSHAN HENGLIDA MACHINE BLADE
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