发明授权
US07740090B2 Stress relief feature on PDC cutter 有权
PDC刀具上的应力消除功能

Stress relief feature on PDC cutter
摘要:
A cutter having a base portion, an ultrahard layer disposed on the base portion, and at least one relief groove formed on an outer surface of the cutter. The at least one relief groove is configured to form a relief gap between the ultrahard layer and an inside surface of a cutter pocket.
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