Although the PCD tool has a high hardness, it is not as tough as the hard alloy tool, which is lower than the high speed steel. The main damage of PCD tool is the broken blade. And the collapse blade is usually caused by vibration during processing. So how do PCD knives reduce their chances of collapsing? Only by reducing the overhang or spindle length of the PCD cutter can improve the rigidity of the machine tool and reduce the vibration of the machine tool. High rigidity of machine tool is the use of PCD cutting tool indispensable equipment, the PCD tool cutting speed if too fast, can also lead to machine tool vibration, then what is the relationship between machine tool vibration and the cutting tool cutting speed?
PCD tool cutting speed stability can rise to protect the purpose of the tool cutting edge, if use PCD cutting tools for turning processing, selection of cutting speed is higher than that of cemented carbide cutting tools more than 2 times, otherwise it is difficult to meet the requirements of the processing effect. If the cutting speed too fast, can produce a large amount of cutting heat, high temperature may cause solder softening, easy to cause PCD cutting tool tip off, cutting depth too deep to impact and damage caused by welding parts.
PCD cutting tool in machining aluminum alloy material, usually can not use the coolant, but in the semi-closed processing such as drilling and boring, would require the cooling fluid for cooling and lubrication on the cutting edge. It is difficult to obtain satisfactory surface finish if PCD tool holder is not rigid. The diamond tool manufacturer recommends that the tool users use the rigid high PCD tool, such as PCD lathe tool, boring tool, milling cutter, etc., is the best tool suitable for high-speed cutting. Move.
