Method for manufacturing segment through metallization of Ti foil diamond under assistance of ultrasonic waves

Abstract

The invention discloses a method for manufacturing a segment by ultrasonic-assisted Ti foil diamond metallization, which comprises the following steps of: metallizing the surface of diamond, firstly paving a layer of titanium powder on the surface of a steel substrate, then placing a titanium foil, placing the diamond, paving a layer of titanium foil and titanium powder, placing the diamond, paving a layer of titanium foil and titanium powder, and then placing the diamond; the last layer of titanium foil and titanium powder is laid, an ultrasonic pressing head is pressed on the diamond and the titanium powder, ultrasonic-assisted vibration is started, so that friction is generated between the diamond and the titanium foil as well as between the diamond and the titanium powder, temperature is increased, TiC is formed on the surface of the diamond, and finally the metallized diamond is screened out; ni, Cu and Sn metal powder are mixed and smelted according to a certain weight ratio, and the spherical pre-alloyed powder is prepared through gas atomization; and sintering the segment. The diamond grinding wheel manufactured by the method has the characteristics of uniform distribution of diamond abrasive particles and high holding strength of the abrasive particles.

Description

technical field [0001] The invention belongs to the field of diamond tool production, in particular to the production technology of sintered diamond nodules. Background technique [0002] Diamond has high hardness and excellent mechanical properties, so diamond tools have become an indispensable and effective tool for processing various hard and brittle materials. They are used to cut glass, stone, concrete, ceramics, hard alloy and other materials. The tools mainly include grinding wheels, saw blades, Wire saw, grinding head, nesting drill, etc. At present, diamond tools can be divided into electroplating, sintering and brazing tool products according to manufacturing methods and processes. Diamond tools manufactured by various processes have their own advantages and disadvantages. Electroplated diamond tools have the advantages of simple manufacturing process and high processing accuracy, but there is no chemical metallurgical bond between the electrodeposited coating met...

AI Technical Summary

Problems solved by technology

However, under solid-state sintering conditions, although active elements (carbide-forming elements) are added to the matrix, effective chemical bonds cannot be formed for diamond.

[0003] In traditional sintered tools, although active elements are added to the alloy powder, the carbide elements cannot fully contact with the diamond at the atomic level during the sintering process. In the environment, because the activity of Ti is too high and it is easily oxidized, so how to make the diamond fully contact with the active element at low temperature, so that due to the high activity of Ti element, carbide can be produced by full contact and friction with Ti at low temperature