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Broach material, preparation method thereof and broach

A technology of material and parts by weight, which is applied in broaches, broaching machines, manufacturing tools, etc., to achieve the effects of long service life, high tool rigidity, and cost-saving processing

Inactive Publication Date: 2019-03-26
ZHUZHOU BEAUTY FORCE DI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The service life of the broach in the prior art needs to be further improved for better application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Compounding and mixing metal tungsten, metal aluminum, metal cobalt, metal chromium, metal hafnium, metal niobium, metal tantalum, metal titanium, metal manganese, metal iron and metal copper to obtain a mixture;

[0074] The obtained mixed material is wet-milled, and the wet-milling uses alcohol as a solvent to obtain a slurry with an average particle size of 25 μm;

[0075] The slurry was left to stand for 10 hours for clarification;

[0076] Dry the clarified material at 120°C for 12 hours;

[0077] The dried material is filtered through a 100-mesh filter;

[0078] Test the coercive force of the filtered material for identification;

[0079] The identified material was first molded and then cold isostatically pressed; during the molding process, a pressure of 125 tons was used to keep the pressure for 5 minutes, and a pressure of 1.5 tons was used for the cold isostatic pressing.

[0080] Pre-sinter the semi-finished product obtained after pressing in a vacuum hea...

Embodiment 2

[0089] Compounding and mixing metal tungsten, metal aluminum, metal cobalt, metal chromium, metal hafnium, metal niobium, metal tantalum, metal titanium, metal manganese, metal iron and metal copper to obtain a mixture;

[0090] The obtained mixture is wet-milled, and the solvent used in the wet-milling process is alcohol to obtain a slurry with an average particle size of 20 μm;

[0091] The slurry was left to stand for 12 hours for clarification;

[0092] Dry the clarified material at 120°C for 15 hours;

[0093] The dried material is filtered through a 120-mesh filter;

[0094] The coercive force of the filtered material is tested for identification;

[0095] The identified materials were first molded and then cold isostatically pressed; during the molded compression molding process, a pressure of 125 tons was used for 6 minutes, and the pressure during the cold isostatic pressing process was 1.5 tons.

[0096] Pre-sinter the pressed semi-finished product in a vacuum hea...

Embodiment 3

[0105] Compounding and mixing metal tungsten, metal aluminum, metal cobalt, metal chromium, metal hafnium, metal niobium, metal tantalum, metal titanium, metal manganese, metal iron and metal copper to obtain a mixture;

[0106] The obtained mixture is wet-milled, and alcohol is used as a solvent in the wet-milling process to obtain a slurry with an average particle size of 18 μm;

[0107] The slurry was left to stand for 15 hours for clarification;

[0108] Dry the clarified material at 125°C for 16 hours;

[0109] The dried material is filtered through a 130-mesh filter;

[0110] The coercive force of the filtered material is tested for identification;

[0111] The identified material was molded first, and then cold isostatically pressed; during the molded molding process, the pressure was maintained at a pressure of 130 tons for 5 minutes, and the pressure during the cold isostatic pressed was 2 tons.

[0112] The pressed semi-finished product is preheated and sintered in ...

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Abstract

The invention provides a broach material. The broach material comprises, by weight, 85-88 parts of W, 1.7-1.75 parts of Al, 10.2-10.3 parts of Co, 0.44-0.46 part of Cr, 0.13-0.15 part of Hf, 0.44-0.46part of Nb, 1.5-1.55 parts of Ta and 0.04-0.06 part of Cu. The broach material adopts metal elements with specific components and reasonably controls the mass content of each component, and particularly 1.7-1.75 parts by weight of the aluminum element is adopted, so that the broach prepared by the material has long service life, high tool rigidity, good dimensional stability, high machined profile precision and good finish and is especially suitable for machining mortises of turbine discs, the service life of the broach can be remarkably prolonged, the tool replacement times are reduced, andthe machining cost is saved. The invention further provides a preparation method of the broach material and the broach.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a broach material, a preparation method thereof and a broach. Background technique [0002] The broach is a forming tool used for broaching. When the broach is broaching, the teeth cut off a certain thickness of metal from the workpiece, and finally get the required size and shape. Broaches are often used in batch and mass production to process round holes, spline holes, keyways, flat and formed surfaces, etc. [0003] The service life of the broach in the prior art needs to be further improved for better application. Therefore, developing broach materials to improve material properties to obtain broaches with longer service life has become a research hotspot for those skilled in the art. Contents of the invention [0004] In view of this, the object of the present invention is to provide a broach material and a preparation method thereof. The broach material provided...

Claims

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Application Information

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IPC IPC(8): C22C27/04C22C1/04B23D43/00
CPCB23D43/00C22C1/045C22C27/04
Inventor 李照张土军
Owner ZHUZHOU BEAUTY FORCE DI IND CO LTD
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