Method for producing single-sided mold and double-sided coining mold thereof
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United States of America Patent
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Apr 25, 2017
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N/A
app pub date -
Jan 8, 2015
filing date -
Jan 14, 2014
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Abstract
A method for producing a single-sided mold and a double-sided coining mold are provided. The method comprises the following steps: S1. forming a mold cavity on the single-sided mold according to shape of a product; S2. engraving a surface of the mold cavity by a first engraving and milling cutter to form engraved holes, and then inserting a second engraving and milling cutter into the engraved holes for further engraving to form holes to be coined; S3. repeating the step S2 until a predefined number of the holes to be coined are formed on the surface of the mold cavity; S4. placing a coining die with hardened tips on the surface of the mold cavity, and embedding each of the hardened tips into one of the holes to be coined respectively, and then the mold cavity being molded by a coining process.
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