Carbide and re-grinding and re-coated high speed steel cutting tools is a common process. Although the tool regrinding or recoating the price is only a fraction of the cost of manufacturing the new tool, but it can extend tool life. Regrinding process is a special tool or expensive tools typical approach. Can be reground or re-coating of tools including drills, milling cutters, hob and forming tool.
Tool regrinding
In the throwaway drill or milling process, it is necessary to remove the original cutting edge grinding coating, and therefore that the grinding wheel should have a sufficient hardness. Regrinding the cutting edge of the pretreatment is critical, not only to ensure that the tool regrinding after the original cutting edge geometry can be completely and accurately preserved, and require regrinding of pvd coated tools must be "safe". Therefore, we must avoid unreasonable grinding process (for example: high temperature causes the tool surface damage coarse or dry grinding).