Analysis on the Fracture Failure of Brazed Diamonds in Wire Sawing |
| Journal |
Key Engineering Materials (Volumes 389 - 390) |
| Volume |
Advances in Abrasive Technology XI |
| Edited by |
Tsunemoto Kuriyagawa, Libo Zhou, Jiwang Yan and Nobuhito Yoshihara |
| Pages |
436-441 |
| DOI |
10.4028/www.scientific.net/KEM.389-390.436 |
| Online since |
September, 2008 |
| Authors |
Guo Qin Huang, Hui Huang, Xi Peng Xu |
| Keywords |
Brazing, Diamond Retention, Fracture, Wire Sawing |
| Abstract |
An investigation was undertaken to elucidate the mechanisms for the fracture failure of
brazed diamonds in wire sawing. Diamonds were brazed by high-frequency induction in vacuum.
The changes of compressive strength and the appearances of the diamonds at different brazing
temperatures were obtained. The morphologies of the diamonds after sawing were also observed.
Together with the stress analysis of a brazed grit, it is found that the fracture failure of brazed grit is
the result of the brittle fracture happening on the root section of the grit, the interface between the
grit and the brazing alloy. The degradation of mechanical properties of grits in brazing is a key
factor to the reduction of their resistance to fracture. Lower machining forces as well as grit
exposure are in favor of preventing grits from fracture. |
| Full Paper |
Get the full paper by clicking here
|
