User Manual

Quality Crimp Handbook
Order No: ATS-638000029 Release Date: 09-04-03 UNCONTROLLED COPY Page 8 of 23
Revision: C Revision Date: 09-12-06
Figure 4-6
PUNCHES
WIRE
ANVILS
TERMINALS
Figure 4-5
RAM
PRESS BASE PLATE
SHUT HEIGHT
GAUGE
that may build up on the stripped conductor and the tin-
plating on the inside of the terminal grip. This is necessary to
provide a good metal-to-metal contact. If this does not occur,
resistance can increase. Over-crimping a crimp termination
will reduce the circular area of the conductor and increase
resistance.
Pull force testing is also a good indicator of problems in the
process. Cut or nicked strands in the stripping operation, lack
of bell mouth or conductor brush, or incorrect crimp height or
tooling will reduce pull force. Wire properties and stranding,
and terminal design (material thickness and serration design),
also can increase or decrease pull force levels.
 Shut Height
This is the distance (at bottom dead center on a press) from
the tooling mounting base plate to the tooling connection
point on the ram of the press.
 Terminal Position
The terminal position is set by the alignment of the terminal to the
forming punch and anvils, and the carrier strip cut-off tooling.
The tool set-up determines conductor bell mouth, cut-off tab
length, and terminal extrusions