Abstract Recently, a good news came from the Yuanlu 30 well in northeastern Sichuan. The impregnated diamond drill bit developed by Shengli Oilfield Drilling Institute was successfully applied in the...
The diamond drill is not only used for a long time, but also can be reused. The diamond drill that is returned to the factory is similar to the diamond drill used at the factory, and it can save a...
In the application of uncoated superabrasive grinding wheels, there are three increasingly prominent problems: insufficient abrasive holding power, insufficient abrasive particle protection, and poor...
Grinding is generally used as the final process of workpiece machining. Its task is to ensure that the product parts can meet the precision and surface quality required on the drawings. Grinding...
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