New method for making superhard-abrasive material tool through resistance welding

A super-hard abrasive, a new method of technology, used in manufacturing tools, resistance welding equipment, welding equipment, etc., to achieve the effect of light weight, simple operation and low shedding rate of welding resistance equipment

Inactive Publication Date: 2019-03-29
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method overcomes the problem of thermal damage and jumping of abrasives during cold welding, and has the advantages of good abrasive fixing effect, easy operation, environmental protection, low cost, good tool processing quality, high processing efficiency, and abrasives are not easy to fall off. wide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: make diamond grinding wheel with Ni base brazing filler metal solder resistance.

[0024] Include the following steps:

[0025] (1) Select 45 steel with an outer diameter of 200mm, an inner diameter of 35mm, and a height of 10mm as the substrate, polish it with metallographic sandpaper, remove the surface oxide skin, and evenly drill holes on the end surface of the grinding wheel, and clean it with acetone;

[0026] (2) select brazing filler metal and abrasive material for use, and brazing filler metal is 300 / 400 purpose NiCrBSi alloy powder (5~9wt%Cr, 2wt%B, 3wt%Si, surplus is Ni), and abrasive material is 20 / 30 purpose diamond, and brazing filler metal and abrasives were put into acetone for ultrasonic cleaning;

[0027] (3) The pre-welding process of the abrasive, after the pre-welding is completed, the abrasive is taken out;

[0028] (4) Accurately place the pre-welded abrasive into the drilled hole of the substrate, and make it have an appropriate e...

Embodiment 2

[0035] Embodiment 2: use Cu-based brazing material to resist soldering of the diamond grinding head.

[0036] Include the following steps:

[0037] (1) Select 45 steel with a diameter of 8 mm and a length of 10 mm as the substrate, and process one end of it into a semicircle, polish it with metallographic sandpaper, remove the surface oxide skin, drill holes evenly on the surface of the round end of the substrate, and clean it with acetone;

[0038] (2) select brazing material and abrasive material for use, brazing material is 300 / 400 purpose CuSnTi alloy powder (16~18wt% Sn, 10wt% Ti, surplus is Cu), abrasive material is 20 / 30 purpose diamond, put brazing material and abrasive material respectively into acetone for ultrasonic cleaning;

[0039] (3) The pre-welding process of the abrasive, after the pre-welding is completed, the abrasive is taken out;

[0040] (4) Accurately place the pre-welded abrasive into the drilled hole of the substrate, and make it have an appropriate...

Embodiment 3

[0047] Embodiment 3: Soldering CBN grinding head with Ni-based solder.

[0048] Include the following steps:

[0049] (1) Select 45 steel with a diameter of 8 mm and a length of 10 mm as the substrate, and process one end of it into a semicircle, polish it with metallographic sandpaper, remove the surface oxide skin, drill holes evenly on the surface of the round end of the substrate, and clean it with acetone;

[0050] (2) select brazing filler metal and abrasive material for use, and brazing filler metal is 300 / 400 purpose NiCrBSi alloy powder (5~9wt%Cr, 2wt%B, 3wt%Si, surplus is Ni), and abrasive material is 20 / 30 purpose CBN, and brazing filler metal and abrasives were put into acetone for ultrasonic cleaning;

[0051] (3) The pre-welding process of the abrasive, after the pre-welding is completed, the abrasive is taken out;

[0052] (4) Accurately place the pre-welded abrasive into the drilled hole of the substrate, and make it have a good exposure height;

[0053] (5)...

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PUM

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Abstract

The invention provides a new method for making a superhard abrasive material tool through resistance welding. A matrix is 45 steel, brazing filler metal is 300-400 mesh NiCrBSi alloy powder (5-9 wt% of Cr, 2 wt% of B, 3 wt% of Si and the balance Ni) or CuSnTi alloy powder (16-18 wt% of Sn, 10 wt% of Ti and the balance Cu), and abrasive materials are 20-30 mesh diamond or 20-30 mesh CBN. After thematrix and the brazing filler metal are pretreated, the abrasive materials which are pre-welded are placed into a matrix drilling hole, and then a resistance welding machine is used for moving the abrasive materials onto the matrix one by one through resistance welding. The matrix of the superhard-abrasive material tool made through the technology almost has no heat affected zone, the abrasive materials are free of heat damage, the effect of fixing the abrasive materials is good, the holding strength of the brazing filler metal for the abrasive materials is high, the service life of the tool is long, and the new method can be used for making a special-shaped tool and is large in application range.

Description

technical field [0001] The invention relates to a new method for manufacturing a superhard abrasive tool through a welding resistance method, and the manufactured superhard abrasive tool is used for grinding high-hard and brittle materials such as ceramic materials, natural stone materials, glass and various metals. Background technique [0002] In the early 1990s, people began to use brazing for the production of superabrasive tools. Brazing superabrasive tools can make brazing filler metal, matrix and abrasives chemically metallurgically bonded at high temperature, which overcomes the problems of easy peeling off of the coating, low exposure of abrasive grains, and Abrasive thermal damage and many other problems have effectively improved the processing quality and processing efficiency, making superabrasive tools exhibit high processing quality and processing efficiency in the processing of high-hard and brittle materials, and significantly improved the high-hard and britt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/00B23K11/34
CPCB23K11/002B23K11/34
Inventor 马伯江王镇尹彦翔
Owner QINGDAO UNIV OF SCI & TECH
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