The paper research the problem of bow to build the model of cutter with the design technology of virtual product, and built the 3D models of twist drill, gang drill, gear hob;
讨论了用虚拟技术对复杂金属切削刀具进行建模的问题，建立了麻花钻、群钻、齿轮滚刀的三维数字模型；
2
Present a method of sharpening twist drills in the interior conical surface and exterior conical surface grinding wheel. A novel sharpening device of linkage-gear compound mechanism is designed.