Method for forming a pressed component, method for manufacturing a pressed component, and die apparatus for forming a pressed component
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United States of America Patent
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Oct 9, 2018
Grant Date -
Nov 26, 2015
app pub date -
Dec 19, 2013
filing date -
Jan 11, 2013
priority date (Note) -
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Abstract
A piercing die, a holding body, and a piercing punch are used to form a pressed component having a plate-shaped base portion and a tubular boss portion extending from the base portion. The piercing die has a receiving portion, an outer shape-forming portion, and a die-side cutting edge. The piercing punch has an inner shape-forming portion, a punch-side cutting edge, and a straight portion. In a process of forming a pressed component, the piercing punch is pressed against a preform which is formed from a blank and which has a preliminary boss portion so as to cause part of the preliminary boss portion to flow toward the outer shape-forming portion, and so as to then cut off another part of the preliminary boss portion to form a boss portion.
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