Message: | For this mold of hexagonal ballistic plate with side length of 48mm, hard alloy is used for the mold cavity, and low-speed WEDM for internal processing of the cavity to sub-mirror effect, and then abrasive flowing machine for polishing to the mirror effect; both upper and low punches are made with HITACHI high-speed steel with HRC up to 61-63 degrees. url:http://www.yxhgmould.com |