51吃瓜

???? ???? ???? ??? ????? ?????? ????? ?? ???? ??? ?? ??? ??? ???? ?? ????? ?? ????? ????? ?? ???? ?? ??? ?? ?? ???? ??? ????? ?? ???? ??? ?????? ?? ??? ?? ??? ???? ?? ???? ??. ???? EMAR ????? ?????? ?? ??? ?????? ?????? ????? ?????? ?? ??? ?? ??.

1. ?????? ??????: ?????? ?????? (?????? ??????) ??? ?????? ?????? (?????? ??????) ?? ????? ?? ?? ??? ?????? ?????? (?????? ??????) ?????? ?????? (?????? ??????) ?? ????? ???? ?? ????? ???? ?? ????? ?????? (?????? ??????) ?? ????? ???? ??? ????? ?? ???? ?? ????? ???? ?????? (?????? ??????) ?? ????? ???? ??? ?? ???? ?? ???? ???????

2. Electrolytic polishing: Precision stamping molds can be smoothed by removing small protrusions on the material surface through electrolytic polishing. Compared with chemical polishing, it can eliminate the influence of cathodic reactions and achieve better results.

3. Ultrasonic polising: put the material to a grinding suspension and put it together in an ultrasonic field. Then, via oscillation of ultrasonic waves, the abrasive is ground and polished on the surface of precision stamped workpieces. ??????????? ???? ?? ??? ?? ????????? ??? ?? ??? ?? ??? ???? ?? ????? ?? ??? ???? ??? ??? ???? ?? ????? ??? ????? ?? ?????? ??? ????? ?? ????? ???? ????? ??? ??????????? ???? ???? ??????? ?? ?????????? ????? ?? ?? ???? ??. ?? ????? ??? ?????????? ?? ????? ?? ??????????? ??????? ?? ?? ????? ?? ??? ???? ??? ???? ??? ??? ??? ???? ?? ??? ?? ????? ???? ???? ?? ???? ???? ?? ??? ??? ?? ????? ????? ?? ????????? ??????? ???? ??? ??????????? ?? ???? ??? ????? ??? ??? ????? ?? ???? ??? ?? ??? ?? ????? ??? ???? ?? ????? ?? ??? ????? ???? ??.