活塞环是内燃机的一个配件。其外形成型精度的好坏,将直接影响主机的性能。通常活塞环有油环、桶面环、锥环和平环四种。国外对活塞环的外形加工,普遍采用成形磨削工艺。对于加工油环的成形砂轮修整则采用金刚石滚轮,而桶面环和锥环亦有仿形修整的(对单颗粒金刚石形状精度要求较高)。 Piston ring is an accessory of internal combustion engine. The appearance of forming the quality of good or bad, will directly affect the performance of the host. Piston rings are usually oil ring, barrel surface ring, cone ring and ring four. Foreign appearance of the piston ring processing, forming grinding process commonly used. For the processing of oil ring forming grinding wheel dressing is the use of diamond wheel, and the barrel ring and conical ring is also profiled dressing (single grain diamond shape accuracy requirements higher).