Investigation of temperature on the interfacial microstructure and performance of cBN grinding wheels by high-frequency induction brazing

Investigation of temperature on the interfacial microstructure and performance of cBN grinding... The brazed grinding wheels were fabricated by high-frequency induction brazing with varying temperature from 900 to 1000 °C. The morphology and chemical composition of the brazing resultants around cubic boron nitride (cBN) grit were examined using scanning electron microscopy (SEM) and energy dispersion X-ray spectrometry (EDS) techniques. Grinding tests of titanium alloy Ti6Al4V were carried out. The results showed that the reaction layer composed of Ti-N and Ti-B compound was formed between the cBN grit and filler alloy. The specific grinding force and specific grinding energy of brazed cBN wheels were much lower than those of the electroplated counterpart during grinding of titanium. In particular, a good sharpness and bonding strength of brazed cBN wheel were obtained when the brazing temperature is 940 °C. With the brazing temperature increase, the main wear pattern of brazed cBN wheel is pullout, breakage, and crush, successively, while adhesion is dominant on the surface of the electroplated cBN wheel. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Investigation of temperature on the interfacial microstructure and performance of cBN grinding wheels by high-frequency induction brazing

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Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London Ltd., part of Springer Nature
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-1378-7
Publisher site
See Article on Publisher Site

Abstract

The brazed grinding wheels were fabricated by high-frequency induction brazing with varying temperature from 900 to 1000 °C. The morphology and chemical composition of the brazing resultants around cubic boron nitride (cBN) grit were examined using scanning electron microscopy (SEM) and energy dispersion X-ray spectrometry (EDS) techniques. Grinding tests of titanium alloy Ti6Al4V were carried out. The results showed that the reaction layer composed of Ti-N and Ti-B compound was formed between the cBN grit and filler alloy. The specific grinding force and specific grinding energy of brazed cBN wheels were much lower than those of the electroplated counterpart during grinding of titanium. In particular, a good sharpness and bonding strength of brazed cBN wheel were obtained when the brazing temperature is 940 °C. With the brazing temperature increase, the main wear pattern of brazed cBN wheel is pullout, breakage, and crush, successively, while adhesion is dominant on the surface of the electroplated cBN wheel.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Nov 19, 2017

References

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