PDC, acoustic radiation toughness test for PCBN or other high-hard or superhard material insert

摘要

acoustic emission testing device includes a test cutter including a first surface, an acoustic sensor, and an indenter which is coupled to the first surface, and a load. Load exerted on the indenter, an indenter transmits this load to the first surface. Acoustic sensors are communicatively coupled form to test cutter, detecting one or more acoustic events occurring in the test cutter. Acoustic emission testing system includes a data recorder that is coupled to the test apparatus. Data recorder records the data from the test device. Based on the received data, toughness testing cutter, are objectively determined, it may be ranked in comparison to other test cutter. Load is caused to ramp up, it is held by a certain period of time until the peak load and allowed to ramp down. Cutter of the same cutter type as the test cutter has a toughness similar.FIELD 1