MANUFACTURING METHOD OF A METALLIC CASE FOR AN ELECTRONIC PRODUCT USING RUBBER BULGING AND METALLIC CASE FOR AN ELECTRONIC PRODUCT MANUFACTURED USING THE SAME CAPABLE OF IMPROVING PRODUCTION EFFICIENCY

摘要

PURPOSE: A manufacturing method of a metallic case for an electronic product using rubber bulging and a metallic case for an electronic product manufactured using the same are provided to easily and cost-efficiently produce a large amount of metallic cases.;CONSTITUTION: A manufacturing method of a metallic case for an electronic product using rubber bulging is as follows. A metal plate is blanked. The blanked metal plate is drawn. The drawn metal plate is trimmed. The metal plate is pressed using a rubber punch and is bulged. The rubber punch is assembled in the bottom end of an upper mold(S141). The timed metal plate is installed in the top end of a lower mold(S142). The metal plate arranged on the lower molded is bulged by descending the upper mold having the rubber punch(S143). The rubber punch assembled in the bottom end of the upper mold is moved to an original position by ascending the upper mold(S144). The bulged metal plate is withdrawn.;COPYRIGHT KIPO 2012