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Welding method for diamond abrasive particles

A welding method and diamond technology, applied in welding equipment, resistance welding equipment, metal processing equipment, etc., can solve the problems of limited size of brazing tools and long brazing cycle.

Inactive Publication Date: 2011-04-27
XIAN JINHE OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of spot-welding method of diamond abrasive grain in view of the deficiencies in the above-mentioned prior art, to solve problems such as long brazing cycle and limited size of brazing tools in vacuum brazing

Method used

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  • Welding method for diamond abrasive particles
  • Welding method for diamond abrasive particles

Examples

Experimental program
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Embodiment

[0007] Embodiment: the diamond abrasive grain 9 that has composite coating is placed on substrate 1, the electrode of spot welder is aligned with diamond abrasive grain, starts spot welder, and the upper electrode 7 of spot welder and lower electrode 8 pair diamond abrasive grain 9 and the matrix 1 carry out the process of pressurization, discharge welding, maintenance, and rest to complete the welding of the diamond abrasive grains 9 and the matrix 1, then move the position, and then weld the next grain or the next batch of diamond abrasive grains. The thickness of the abrasive grain coating and the spot welding parameters can easily adjust the density of diamond abrasive grains and the edge height of diamond abrasive grains to meet the needs of customers; on the other hand, due to its fast welding speed, there is basically no waste gas and liquid in the welding process , it is easy to realize automatic production. To further reduce thermal damage to diamond abrasive grains, ...

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Abstract

The invention relates to a welding method for diamond abrasive particles, which is characterized by comprising the following steps of: selecting diamond subjected to vacuum micro-evaporation titanizing, and nickelizing on the surface of the diamond to form a composite plating layer; and putting the diamond abrasive particles with the composite plating layer on a substrate, and performing pressurizing and discharge welding on the diamond abrasive particles and the substrate by using an electrode for a small-scale spot-welding machine. Titanium on the diamond abrasive particles subjected to composite plating is in firm chemical bonding with the diamond first, and when nickel subjected to the composite plating is welded, inner layers of the diamond abrasive particles are in diffusion bonding with the titanium, and the nickel on outer layers is welded with the substrate easily, so that the control strength of the substrate on the diamond abrasive particles is high.

Description

Technical field [0001] The invention belongs to the technical field of high-temperature brazing, and relates to the improvement of a method for high-temperature brazing diamond abrasive grains. Background technique [0002] Diamond (Diamond) is a simple substance of carbon (C), and its crystal structure belongs to the equiaxed face-centered cubic crystal system. The unique crystal structure makes diamond have the highest hardness, rigidity and excellent wear resistance, corrosion resistance and chemical resistance in nature. stability. The excellent physical and mechanical properties of diamond determine that it is an ideal raw material for making tools for hard and brittle materials. It is widely used in drills, sawing tools, and abrasive tools for hard and brittle materials such as cemented carbide, engineering ceramics, optical glass, semiconductor materials, and granite. , a wide variety of grinding tools and other important superhard wear-resistant surfaces. [0003] ...

Claims

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Application Information

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IPC IPC(8): B23K11/11B23K11/16B23K11/34
Inventor 杜兵杜蔚杜迎涛
Owner XIAN JINHE OPTICAL TECH
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