Invention Grant
US09562557B2 Punch pins, associated sockets, and methods of forming sockets using punch pins 有权
打孔针,相关插座以及使用冲压针形成插座的方法

Punch pins, associated sockets, and methods of forming sockets using punch pins
Abstract:
Punch pins which have further extending lobes, and which are designed to punch sockets that have deeper flutes while not having lobes which extend further toward a center axis of the fastener. Using such a punch pin to form a socket in a fastener provides that the resulting socket has flutes which are deeper than they otherwise would be, without having to provide corresponding lobes which extend further toward the center axis of the socket. This extra deepness in the flutes helps to provide extra room for a coating to deposit.
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