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Diamond drill bits (PDC drill bits) Diamond composite drill bits are known as diamond drill bits. The drill is a one-piece drill, the whole drill has no moving parts, the structure is simple, and it has high strength, high wear resistance and impact...
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In order to solve the problem of short working time and long interval time of the digging machine, in order to increase the utilization rate of the machine, it is proposed to develop a multi-machine type digging machine. The sea mechanical...
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Recently, through the application of new drilling speed-increasing processes such as hybrid drill bit and sharp-toothed PDC drill bit, Shunbei 1-8H and Shunbei 1-9 respectively created 111.83 days and 116.04 days respectively, and the igneous...
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Abstract Minimum bore diameters with lower tolerances require very precise and rigid tools, especially for deep drilling. ZechaHartmetall-Werkzeugfabrikation in a microscopic individualized coating with internal cooling...