Punch for a ductile material joining tool

The present invention relates to a punch ( 30 ) and punch assembly ( 2 ) for use in a tool ( 1 ) for joining ductile materials, such as metal sheets ( 7,8 ), in a lance joint or a clinch joint. The punch ( 30 ) has a punch body ( 31 ) formed around a punch axis ( 5 ). Two punch tips ( 34,34 ')...

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Bibliographic Details
Main Author WADE COLIN MAXWELL
Format Patent
LanguageEnglish
Published 17.01.2006
Subjects
CUTTING
CUTTING-OUT
HAND CUTTING TOOLS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORATING
PERFORMING OPERATIONS
PUNCHING
PUNCHING METAL
SEVERING
SEVERING BY MEANS OTHER THAN CUTTING
STAMPING-OUT
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:The present invention relates to a punch ( 30 ) and punch assembly ( 2 ) for use in a tool ( 1 ) for joining ductile materials, such as metal sheets ( 7,8 ), in a lance joint or a clinch joint. The punch ( 30 ) has a punch body ( 31 ) formed around a punch axis ( 5 ). Two punch tips ( 34,34 ') extend in opposite directions from the punch body ( 31 ) along the punch axis ( 5 ). The punch body has one or more load engagement features ( 41,41 ') by which a punch force for joining the ductile materials ( 7,8 ) is imparted to the punch body ( 31 ). When one punch tip ( 34 ) becomes worn, the punch ( 30 ) can be removed from a punch holder ( 25 ), inverted and rejoined to the punch holder ( 25 ) so that the other of the punch tips ( 34 ') can be used to join ductile material ( 7,8 )
Bibliography:Application Number: US20030365073