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A production process of diamond ball end milling cutter

A ball-end milling cutter and production process technology, which is applied in the field of diamond ball-end milling cutter production technology, can solve problems affecting the quality and deformation of diamond tool blanks

Inactive Publication Date: 2021-04-09
SUZHOU SHANDE PRECISION TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, since the diamond tool is synthesized by pressing under high temperature and high pressure conditions, the powder additive will cause a certain deformation of the embryo body of the diamond tool during the forming process, which greatly affects the quality of the diamond tool. The quality of the tool body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A production process of diamond ball end milling cutter, comprising the following steps:

[0026] Step 1, taking materials, selecting raw materials including diamond powder, binder and catalyst, binder including ceramic binder, ceramic binder including one or more of SiC, TiC or TiN, and catalyst including nickel , graphene and carboxylic acid;

[0027] Step 2, testing, sampling and testing the binder, and the testing items include appearance testing, laser particle size testing, density testing, average particle size testing, and mechanical performance testing;

[0028] Step 3. Mixing. Synchronously import the diamond powder, binder and catalyst into the stirring tank, and stir until uniform. The stirring time of the stirring tank is 2 hours, and the stirring speed is 900 RPM. ;

[0029] Step 4: Pressing to form an embryo, filling part of the mixture in step 3 into a mold in a vacuum furnace, heating and molding to obtain the first embryo body, the vacuum degree in t...

Embodiment 2

[0036] A production process of diamond ball end milling cutter, comprising the following steps:

[0037] Step 1, taking materials, selecting raw materials including diamond powder, binder and catalyst, binder including ceramic binder, ceramic binder including one or more of SiC, TiC or TiN, and catalyst including nickel , graphene and carboxylic acid;

[0038] Step 2, testing, sampling and testing the binder, and the testing items include appearance testing, laser particle size testing, density testing, average particle size testing, and mechanical performance testing;

[0039] Step 3. Mixing. Synchronously import the diamond powder, binder and catalyst into the stirring tank, and stir until uniform. The stirring time of the stirring tank is 4 hours, and the stirring speed is 500 RPM. ;

[0040] Step 4: Pressing to form an embryo, filling part of the mixture in step 3 into a mold in a vacuum furnace, heating and molding to obtain the first embryo body, the vacuum degree in t...

Embodiment 3

[0047] A production process of diamond ball end milling cutter, comprising the following steps:

[0048] Step 1, taking materials, selecting raw materials including diamond powder, binder and catalyst, binder including ceramic binder, ceramic binder including SiC, catalyst including nickel, graphene and carboxylic acid;

[0049] Step 2, testing, sampling and testing the binder, and the testing items include appearance testing, laser particle size testing, density testing, average particle size testing, and mechanical performance testing;

[0050] Step 3. Mixing. Synchronously import the diamond powder, binder and catalyst into the stirring tank, and stir until uniform. The stirring time of the stirring tank is 3 hours, and the stirring speed is 700 RPM. ;

[0051] Step 4: Pressing to form an embryo, filling part of the mixture in step 3 into a mold in a vacuum furnace, heating and molding to obtain the first embryo body, the vacuum degree in the vacuum furnace is 0.005 Pa, an...

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PUM

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Abstract

The invention discloses a production process of a diamond ball end milling cutter, which comprises the following steps: step 3, mixing, synchronously introducing diamond powder, binder and catalyst into a stirring tank, and stirring until uniform; step 4, pressing to form an embryo, Fill the mixture into the mold of the vacuum furnace to obtain the first green body; step five, fix the pressed first green body in the graphite collar, cover the graphite sheet and the steel ring up and down; step six, put the assembled first green body A pressing mold is placed in a hinged six-sided top press for high-temperature and high-pressure molding to obtain the first polycrystalline diamond; step 7, filling the remaining mixture of the polycrystalline diamond in step 6 into the mold of the vacuum furnace, Thermoforming to obtain the second embryo body. The amount of deformation of the metallographic structure during one molding process is reduced by multiple times of six-sided top press molding.

Description

technical field [0001] The invention relates to the field of cutting tool production methods, in particular to a production process of a diamond ball end milling cutter. Background technique [0002] The development of knives occupies an important position in the history of human progress. In 1792, Mozley in England produced taps and dies. The earliest documented invention of the twist drill was in 1822, but it was not produced as a commodity until 1864. In 1923, Germany's Schrotter invented cemented carbide. In 1938, Germany's Degusa company obtained a patent on ceramic knives. In 1972, General Electric Company of the United States produced polycrystalline synthetic diamond and polycrystalline cubic boron nitride blades. These non-metallic tool materials allow the tool to cut at higher speeds. [0003] In the prior art, since the diamond tool is synthesized by pressing under high temperature and high pressure conditions, the powder additive will cause a certain deforma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/34
CPCB23P15/34
Inventor 张志红
Owner SUZHOU SHANDE PRECISION TOOLS