In order to ensure the quality and stability of the PDC and diamond cutter, in addition to strictly implementing the quality inspection of raw materials and controlling the 

production process, PDC manufacturers must also conduct laboratory simulation tests on the finished PDC products.and perform various tests on the PDC by simulating 

various harsh conditions for oil well processing. Various performance tests to verify the completion quality of PDC products. Common laboratory testing and test methods

are as follows:

Abrasion ratio test: The abrasion ratio represents the weight of a standard grinding wheel cut off by the amount of PDC wear per unit weight. The greater the abrasion ratio, 

the stronger the wear resistance of PDC;

Impact resistance test: The impact resistance test is also called the drop weight test, which means that the cutting edge of a PDC insert that is vertically dropped at a given 

height is used for standard impact.;

Thermal stability test: mainly to test the high temperature resistance of PDC. The test method is to put the PDC in a high temperature environment of 700 ℃-750 ℃ for 10-15 

minutes. After taking out, it is naturally cooled to check the change of the diamond layer and compare the resistance before and after detection change of abrasive and impact 

resistance indicators;

Turning granite: PDC turns homogeneous granite at a fixed linear speed and feedrate. In this process, the PDC is not cooled in any way. Observe the working time of the PDC 

under high temperature conditions and calculate the volume ratio of the PDC and granite; such as LINKUT PDC for chain saw machine quarrying marble, exhibits high wear 

resistance and impact resistance.

C ultrasonic scanning: use 0.2 ~ 800 MHz ultrasonic wave to detect delamination and hole defects in the PCD layer;

Oilfield Drilling Test: To verify the quality of PDC, the performance of PDC must be verified by comparing the drilling footage, drilling speed and other indicators.