Die for driving pierce nut

Disclosed is a die assembly for driving a pierce nut which comprises an annular coining portion (2) provided on the top of a die body (1) in such a way as to have its inner surface continuous to the center aperture (3), and an annular projection (4) provided on the upper portion of the center apertu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: KAZINO, HIROSHI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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