Usually the terminal is rolled copper surface contact with its matching terminal is turned on, but when the connector is reduced PITCH (such as PITCH =1.0mm or 0.5mm), the terminal may have to cut its surface as the contact surface conductive.
At this time, the shear surface with respect to percentages and the shear surface roughness of copper would most likely be required to achieve a high standard (as 80% of the shear surface).
Faced with this problem shear plane, stamping die design to use those methods, consider what conditions to overcome it?
Cut section describes
Cut section:
(A) before the beginning of billet for the next steps, the local area set aside about (0.10mm, 0.06mm, 0.04mm) material width.
(B) further refinement cutting section.
Matters to be observed:
(1) early embryo under the influence of reserve feed material width dimension of the cut after finishing percentage.
(2) refinement of the shear gap effect on the following characteristics: - After finishing scraps of integrity. - The percentage of the thickness of the shear plane accounted for.
(3) the finishing punch the local region as a polishing process, the roughness of the impact on improving the terminal shear plane.