Crimping is the deformaiton of a terminal barrel or sleeve around a wire with sufficient mechanical pressure in a way called “cold weld” in order to make a gas tight connection. This connection is an interface providing electrical efficiency capable of conduction equivalent to an equal length counteract. high crimp force may increase electrical efficiency while decreasing mechanical performance.

The crimping must be applied with proper tools. Terminals are designed for specific of cable and wire sizes and hence small wires cause undercrimping and large wires cause overcrimpingç

Crimping Wire Sction

Correct: the shape must be symmetrical and the wire barrels must shoulder each other.

Approval Condition

Condition:

- “h” value must not be bigger than material thickness.

- “a” value must not be bigger than half of metarial thickness.

Incorrest Crimping

The anvils and crimpers worn out

Choosing Right Terminal Barrel

Terminal barrel height and/or widgt must be compatible with wire size.

Wire size too large for terminal height (h) and/or width (w).

Wire size too large for terminal height (h) and/or widgt (w)

Adjusting crimping machine

Under – Crimped

Over – Crimped

Crimping Insulated Section

Correct

Incorrect

Terminal insulation barrels pierce the cable and contact the wire

Terminal insulation barrels do not wrap insulated section fully.

Correct

Incorrect

1. Over-Crimped
2. Terminal insulatin barrels size does not match wire size

1. Under-crimped
2. Terminal insulation barrels size does not match wire size

The wire shas to be ahead at least a diameter of a wire from wire barrel

DIN 46249 TEIL 1′e Göre Krimp Kopma Değerleri (*)

(*) Eğer iki iletken bir araya gelmişse, eşit kesitlerde krimp kopma kuvveti olarak bir iletkennin değeri, farklı kesitlerde büyük olan iletkenin değeri geçerlidir.

Krimp Testlerinde Kullanılan Kablo Özellikleri

* n: Kablodaki tel adeti

* d: Kablodaki tel çapı – mm

DIN 46249 TEIL 1′e göre Krimp Kopma Değerleri (*)

Krimp Yüksekliği Değerleri