Industrial Crimp Quality Handbook
Doc No: TM-640160065
Release Date: 00-00-02
UNCONTROLLED COPY
Page 8 of 27
Revision: C
Revision Date: 12-23-09
PUNCHES
WIRE
ANVILS
TERMINAL
STRIP
LENGTH
If this does not occur, resistance can increase.
Over-crimping a crimp termination will reduce the
circular area of the conductor and increase
resistance.
Serrations
It is the saw-toothed grooves on the surface of a
terminal, which ensures firm gripping of the
conductor. Also provides additional contact area.
Solderless
This means without solder – in our case, denoting
the use of a crimping tool.
Splice
A device used to join two or more conductors
together.
Strip Length
The strip length is determined by measuring the
exposed conductor strands after the insulation is
removed. The strip length determines the
conductor brush length when the insulation position
is centered.
*Consult individual terminal specification
requirements
Tab
Flat rectangular male connection tabs on electrical
components; various sizes to fit female quick
disconnects.
Tensile Test
This is a pull test to determine the mechanical
strength of the crimped wire. They are specific
minimum values set for each wire size. See Section
8.
Terminal
A device designed to terminate a conductor that is to
be affixed to a wire or cable to establish an electrical
connection. It is a synonym for contact. There are
two main types, which include the open barrel and
the closed barrel. Parts of the terminal are:
Insulation barrel Where the wire’s insulation will be
crimped or supported so that it is
firmly gripped.
Wire barrel
Where the bare wire will be
crimped.
Contact area Where the terminal will be attached
to the mating part.
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, cut-off tab length, and
terminal extrusions.
UL
Underwriters’ Laboratories, Inc., founded in 1894,
is chartered as a not-for-profit organization under
the laws of Delaware, to establish, maintain, and
operate laboratories for the investigation of
materials, devices, products, equipment,
construction methods, and systems with respect to
hazards affecting life and property.
Voltage Drop Test
A test of the voltage developed across a component
or conductor being a result of electric current flow in
the component or conductor and its non-zero
electrical resistance. It is the test of the electrical
integrity of the crimp.
Wire
They are a group of conductors that has a low
resistance to current flow, together with any
