Two-point crimping: This type of crimping is also suitable for hole joints and crimping barrels with relatively thick walls, but the size of the hole joints and crimping barrels is larger, and the one-point crimping method is not enough to make the crimping Sufficient deformation of the terminal is required for this crimping.
This form of crimping is very powerful, and the wire harness factory generally uses a special mold to realize the crimping on the punching machine, so as to achieve precise and controllable crimping height.
Four-point crimping: This crimping form is suitable for aviation plug pins with relatively thick wall thickness and relatively small volume. The crimping of this terminal is force from four sides, forming 4 dimples.
In this form of crimping, the force is applied from all sides, the force is uniform, and the excess material of the terminal has a place to run, the force of the crimping is not very large, it is a form with the best crimping effect, but this form of crimping requires The structure of the crimping die is relatively complicated, and of course the investment cost is relatively high. At the same time, due to the complex structure of the crimping die, it is also very difficult to design the crimping die for larger terminals. Therefore, this type of crimping is only suitable for larger terminals. Crimp for small terminals.
This type of crimping is mainly used in the part of the aviation plug in the automotive wiring harness, and it is not used much in the automotive wiring harness.