| Message: | The cavity and core of this mold are made with hard alloy. Low-speed WEDM is used for internal processing of the cavity to sub-mirror effect, and then abrasive flowing machine for polishing to the mirror effect; the mold core is welded, ground with tool grinder and then polished to mirror effect; the upper punch is made with HITACHI high-speed steel with HRC up to 61-63 degrees, while the lower punch is entirely welded with hard alloy; electrode is made with the processing center, processed with mirror pulse lathe to sub-mirror effect, and polished to mirror effect. url:http://www.yxhgmould.com |
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