PDC polycrystalline diamond (PCD) layer of impact damage increasing attention has been paid

PDC to determine its impact resistance is the key to good or bad use of effects, one of which reflects the PDC toughness and bond strength, is a comprehensive performance indicators. PDC polycrystalline diamond (PCD) layer of impact damage increasing attention has been paid, PDC products impact resistance can remain stable and continue to synthetic diamond powder  linked to the interests of users, each manufacturer is trying to achieve straight. PDC impact affecting performance of the main factors that can be considered from two aspects: the macro and micro  Diamond blade . In this paper, considering the macro structure, including the diamond / carbide thickness ratio, PDC radius to thickness ratio, diamond / carbide  Abrasive grinding wheel  structure and PDC mounting angle, and use them as the main factors impact resistance PDC to perform simulations and experiments . Application of ANSYS APDL language and different layer thickness ratio H, diameter and thickness T and the typical non-planar interface PDC residual thermal stress simulation and optimization, get all kinds of structures under PDC residual thermal stress magnitude, compared to optimize the PDC.