That is often used when processing high hardness, wear-resistant casting annealing on again after turning processing, then traditional quenching process, low production efficiency, process complex and high production costs; Wear-resisting castings often appear some problems: 1, some large casting sheet processing time is long, cutting tool have already can't walk all wear leads to the rework, affect machining efficiency. Casting sand inclusion, porosity, white causes such as tool often collapse edge, appear even "Mr. Knife", workpiece surface formed serious answer the mark even scrapped. The blank piece 3, repair welding such as cast iron, cast steel, weld parts of high hardness, cutting tool after welding point when damage is serious. 4 material of high hardness, wear-resistant casting itself, such as high fierce steel, high chromium cast iron, chilled cast iron and other artifacts, there is no efficient tool. Is used to solve these problems, carbide cutting tools and ceramic cutting tool, because the carbide cutting tools of high temperature hardness is not enough, and ceramic blades and cubic boron nitride by blade.
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