Bimetal element is a high hardness material on the wear area, other areas of softer metal. In this way the automotive industry and other fields of applications, but also to the process difficult. cbn cutting material hardness greater than 50rc very efficient, but if cutting soft metals, then, it will be broken. pcd blade can be processed as aluminum metal, but for machining ferrous metal, but it will produce excessive wear.

To efficient processing double metal parts, the need for the user, tool suppliers, equipment suppliers and processing procedures to be adjusted. In one case, high hardness alloy powder mentioned before, by high temperature isostatic pressing at a lower price of 316 stainless steel bottom. By programming the spiral tool path input tools, and selection of the optimal feed rate and cutting speed, the first powder alloy processing, and then processing the underlying metal. This avoids the aforementioned problems.

In order to improve processing efficiency double metal cylinder block, automobile manufacturers must resolve how to machine grinding aluminum and cast iron cylinder liner problems. This structure design means, high hardness Cast Iron District impossible and softer aluminum metal completely isolated. But we can choose to program the machine very low speeds and very shallow depth of cut to solve this problem, and we can only machined aluminum layer and the cast iron layer pcd blade wear without the need for frequent replacement cutting tool.