We are an OEM/ODM professional manufacturer focus on a variety of
metal spring clips, Products widly used on automotive, consumer electronics,
connector, telecommunications and medical industries etc. Including:
Heju stamping contact life time can reach 10-100 thousand times.To ensure the contact life time, Heju stamping will make material or contacts heat treat.In that way,hardness can keep in 36-52 HRC.
The abrasion of punching cutter,material deformation can lead to the punching hole to large or too small.In practice, Heju stamping will find a solution to the problem according to the specific circumstances.such as: Material testing,regular maintenance of mold parts etc.
To ensure the performance,we usually choose the ECuSn-C with high hardness, toughness and good corrosion resistance. The ECuSn-C contact can ensure 500,000 times life at least.Except the material, the thickness, technology process and others can influence the performance and life time.
While forming,most of contacts need bending process.If curvature radius is too small, the bending parts will produce large rebound.So the curvature radius must be 5 times larger than the thickness of the material at least.