Method of machining metal plate and mesh member produced by the machining method
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United States of America Patent
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Dec 6, 2016
Grant Date -
Aug 27, 2015
app pub date -
Aug 30, 2013
filing date -
Sep 12, 2012
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Abstract
A method of machining a metal plate, the method processing a net body made of a metal plate into a dome shape, the net body having a plurality of lattice-shaped through holes. An extension allowance portion is formed in a plurality of side portions so as to curve along a surface area direction, the side portions are formed in a process area of the net body being pressed at a time of drawing-machining, and the extension allowance portion is formed when forming the net body having the side portions constituting the through holes by processing the metal plate. The net body is processed into the dome shape by drawing-machining from one side to an other side.
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