Carbide tool grinding process

A tool grinding and cemented carbide technology, which is applied in the grinding field, can solve problems such as difficult implementation and increased workload, and achieve the effects of improving grinding quality, reducing loss, and reducing the cost of semi-finishing grinding

Active Publication Date: 2017-11-14
SICHUAN SHENGONG TUNGSTEN STEEL CUTTING TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The traditional grinding of carbide tools can control the flatness and parallelism of carbide tools within 0.05mm after rough grinding, semi-fine grinding and fine grinding, but after that, every time the flatness and parallelism decrease 0.01mm, the amount of work required will be increased a lot, and it is difficult to achieve

Method used

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  • Carbide tool grinding process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] First, use a surface grinder with an abrasive particle size of 1600 μm for large surface grinding. When large surface grinding, base surface calibration is performed while grinding, and the flatness and parallelism of the tool blank after large surface grinding are controlled at 0.05 Within mm, the reserved processing allowance is 0.20mm; then use the round table grinder with an abrasive grain size of 190μm for the first overall calibration surface grinding, and the flatness of the tool blank after the first overall calibration surface grinding , The parallelism is controlled within 0.02mm, and the reserved machining allowance is 0.2mm; then the tool grinder with a grain size of 120 μm is used for semi-finish large surface grinding, and the plane surface of the tool blank after semi-finish large surface grinding The degree and parallelism are controlled within 0.012mm, and the reserved processing allowance is 0.1mm; then the second overall calibration surface is ground w...

Embodiment 2

[0057] First, use a surface grinder with an abrasive particle size of 600 μm for large surface grinding. When large surface grinding, base surface calibration is performed while grinding, and the flatness and parallelism of the tool blank after large surface grinding are controlled at 0.04 Within mm, the reserved processing allowance is 0.18mm; then use the round table grinder with an abrasive grain size of 150μm to perform the first overall calibration surface grinding, and the flatness of the tool blank after the first overall calibration surface grinding , The parallelism is controlled within 0.02mm, and the reserved machining allowance is 0.13mm; then the tool grinder with a grain size of 100μm is used for semi-finish large surface grinding, and the flatness of the tool blank after semi-finish large surface grinding , The parallelism is controlled within 0.011mm, and the reserved processing allowance is 0.08mm; then the second overall calibration surface is ground with a ci...

Embodiment 3

[0062] First, use a surface grinder with an abrasive particle size of 200 μm for large surface grinding. When large surface grinding, base surface calibration is performed while grinding, and the flatness and parallelism of the tool blank after large surface grinding are controlled at 0.03 Within mm, the reserved processing allowance is 0.15mm; then use the round table grinder with an abrasive particle size of 130μm to perform the first overall calibration surface grinding, and the flatness of the tool blank after the first overall calibration surface grinding , The parallelism is controlled within 0.02mm, and the reserved machining allowance is 0.1mm; then the tool grinder with an abrasive grain size of 80 μm is used for semi-finish large surface grinding, and the plane of the tool blank after semi-finish large surface grinding The degree and parallelism are controlled within 0.01mm, and the reserved processing allowance is 0.05mm; then the second overall calibration surface i...

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Abstract

The invention discloses a hard alloy tool grinding process. The process comprises the following four steps of performing cross coarse grinding machining on a tool bank by using various carborundum grinding wheel abrasive tools; performing semi-finishing grinding machining on the tool blank subjected to coarse grinding by using a manual coating grinding fluid; performing finishing grinding machining on the tool blank after semi-finishing grinding machining by using the manual coating grinding fluid; and polishing the tool blank after finishing grinding machining to obtain a tool product. According to the hard alloy tool grinding process disclosed by the invention, the flatness and the depth of parallelism of a hard alloy tool product can be controlled within 0.01mm.

Description

technical field [0001] The invention relates to the technical field of grinding, in particular to a grinding process of a cemented carbide tool. Background technique [0002] Cemented carbide is an alloy material made of hard compounds of refractory metals and bonding metals through powder metallurgy. It has high hardness, good red hardness, excellent wear resistance, and long service life, and it is widely used in the manufacture of industrial cutting tools. Because cemented carbide tools have high hardness and excellent wear resistance, compared with other ordinary tools, the production of cemented carbide tools is much more difficult, especially the grinding of tool blanks. [0003] Grinding of cemented carbide tools refers to the processing of tool blanks into tool products with a certain level of surface roughness, flatness, and parallelism after rough grinding, semi-fine grinding, fine grinding, and polishing. The surface roughness, flatness, and parallelism grades o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B3/00B24B57/00C09K3/14
CPCB24B3/00B24B57/00C09K3/1409C09K3/1463
Inventor 黄鸿春李伟
Owner SICHUAN SHENGONG TUNGSTEN STEEL CUTTING TOOLS
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