In the dry processing, because of the lack of a cutting process cooling of the lubricating fluid lubrication, cooling and-chip role will lead knives and increasing friction between the workpiece and cutting humidity increased and intensified chip bonded plug, resulting Tool life expectancy, cutting machining accuracy and efficiency decline. To overcome the lack of a liquid cooling and lubrication of the difficulties caused by the need through the development and application of heat-resistant hardware tool material, suitable tool geometry and micro-lubricating materials and supply installations, as well as by using suitable for dry cutting machine tool and select the appropriate cutting parameters to resolve to ensure a reliable dry cutting process carried out. At present, the main stem cutting tool material Carbide ultrafine particles, the polycrystalline diamond, cubic boron nitride, SiC whisker toughening ceramics and nanocrystalline ceramics, and other.

Hill Teweikeditaikeshi low cutting force, low friction and ensure Paixie for the design principles for the development of stem cutting a lot of knives, ALPHA22-deep hole drilling is one of them.