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A New Method of Making Superabrasive Tools by Solder Mask

A super-hard abrasive, a new method of technology, used in manufacturing tools, resistance welding equipment, welding equipment, etc., to achieve the effects of easy movement, high holding strength, and low shedding rate

Inactive Publication Date: 2021-08-13
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 material and abrasive material, the brazing material is 300 / 400 purpose NiCrBSi alloy powder or, the abrasive material is 20 / 30 purpose diamond or 20 / 30 purpose CBN, put the brazing material and abrasive material into acetone respectively for ultrasonic cleaning; NiCrBSi The composition of the alloy powder is 5-9wt% Cr, 2wt% B, 3wt% Si, and Ni;

[0027] (3) Complete the pre-welding process of the abrasive, and take out the abrasive after pre-welding;

[0028] (4) Accurately place the pre-welded abrasive into the drilled hol...

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 8mm and a length of 10mm as the substrate, and process one end of it into a semicircle shape, 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, brazing material is 300 / 400 purpose CuSnTi alloy powder, abrasive material is 20 / 30 purpose diamond or 20 / 30 purpose CBN, put brazing material and abrasive material into acetone respectively and carry out ultrasonic cleaning; CuSnTi alloy The composition of the powder is 16-18wt% Sn, 10wt% Ti, and the rest is Cu;

[0039] (3) Complete the pre-welding process of the abrasive, and take out the abrasive after pre-welding;

[0040] (4) Accurately place the pre-welded abrasive int...

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 8mm and a length of 10mm as the substrate, and process one end of it into a semicircle shape, 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 material and abrasive material, brazing material is 300 / 400 purpose NiCrBSi alloy powder, abrasive material is 20 / 30 purpose CBN, brazing material and abrasive material are put into acetone respectively and carry out ultrasonic cleaning, and the component of NiCrBSi alloy powder is 5 ~9wt%Cr, 2wt%B, 3wt%Si, the remainder being Ni;

[0051] (3) Complete the pre-welding process of the abrasive, and take out the abrasive after pre-welding;

[0052] (4) Accurately place the pre-welded abrasive into the drilled hole of the substrate, and mak...

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PUM

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Abstract

The invention provides a new method for making superhard abrasive tools by welding resistance method. Wherein the substrate is 45 steel, and the solder is 300 / 400 mesh NiCrBSi alloy powder (5-9wt%Cr, 2wt%B, 3wt%Si, the rest being Ni) or CuSnTi alloy powder (16-18wt%Sn, 10wt%Ti, The remainder is Cu), and the abrasive is 20 / 30 mesh diamond or 20 / 30 mesh CBN. After pretreatment of the substrate and brazing material, the pre-welded abrasive is placed in the substrate drilling hole, and then the abrasive is blocked one by one by a solder mask machine. welded to the substrate. The superhard abrasive tool base produced by the process of the present invention has almost no heat-affected zone, no heat damage to the abrasive, good abrasive fixing effect, high holding strength of the brazing material on the abrasive, long service life of the tool, and can be used in the production of special-shaped tools. The scope of application wide.

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 superhard abrasive 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(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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