Used in the automotive industry, most hard part is hardened after machining to final geometry. Currently, the main method for grinding these parts, these parts including bearings, gears, shafts and pinion. However, thanks machine rigidity improvements and polycrystalline cubic boron nitride (pcbn) development tool, hard turning positive as a good method of grinding an alternative economy in popularity.
Various insert or whole car blade complete hard turning Rockwell hardness 45-68 range of materials in. Since it was launched in the mid-80's, the popularity of this technology has dramatically increased, and pcbn sales tool now more than 2.5 billion dollars annually. Clearly, more and more manufacturers are recognizing the advantages of hard turning. But the cost is attributed to pcbn tool, many people still see it as an expensive process.
