3-458141-9 数据手册 - TE Connectivity（泰科）

Geometry and Associated Tolerances

Terminals are designed to perform to specification only when the final crimp form is within a narrow range of

dimensions. Controlling critical crimp dimensions is influenced by many factors including:

• Wire size and material variation

• Terminal size and material variation

• Equipment condition

well controlled and exhibit excellent consistency from tooling set to tooling

set can result in shorter setup time as well as more consistent production re-

sults.

Some critical crimp characteristics are directly defined by the tooling form

and are obvious. These include:

• Crimp width

• Crimp length

Other critical crimp characteristics can be related to several tooling form fea-

tures and/or other system factors. These may

be less obvious and include:

affect crimp form. Similar arguments can be applied to the others.

Crimp Width

Crimp width is a good example of a feature that should be consistent and in control between different

crimpers of the same part number. The reason for this is quite straightforward. For a given terminal and wire

combination, it is necessary to achieve an area index, AI, which is determined by the terminal designer for op-

timal mechanical and electrical performance. Crimp height, CH, and crimp width, CW, directly affect achieving

proper AI. Area index, AI(as a percentage), is defined as:

where At is the total area of the wire and barrel after crimping. A

W

and A

B

are, respectively, the initial cross-