Stamping parts have been widely used in the production process of many industries. Stamping parts processing includes punching, bending, drawing, forming, finishing and other processes. Stamping parts processing materials are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal strip materials, such as carbon steel plates, alloy steel plates, spring steel plates, galvanized plates, tin-plated plates, stainless steel plates, copper and copper alloy plates, aluminum and aluminum alloy plates, etc. Next, let‘s learn about a process of stamping parts. What is the cold stamping process of stamping parts?

The cold stamping process of stamping parts requires the use of stamping oil, which plays a more important role in the cold stamping process. The stamping oil has good cooling and wear resistance, which prolongs the service life of the die for Metal Stamping. The stamping oil used in different materials of stamping parts is also different, so how to choose?

How to choose the stamping oil used in the cold stamping process of stamping parts:

(1) Since silicon steel sheet is a relatively easy material to press, in order to make the finished workpiece easy to clean, a low-viscosity stamping oil is selected on the premise of preventing stamping burrs.

(2) When stamping carbon steel sheets, first pay attention to the viscosity of the drawing oil, and determine the best viscosity according to the process difficulty and degreasing conditions.

(3) When using stamping oil for galvanized steel sheet, due to the chemical reaction with chlorine additives, attention should be paid to the possibility of white rust in chlorine stamping oil, and the use of sulfur stamping oil can avoid rust, but it should be degreased as soon as possible after stamping.

(4) Stainless steel is a material prone to pressure hardening, so a tensile oil with high oil film strength and good sintering resistance is required. Stamping oils containing sulfur and chlorine compound additives are usually used to ensure extreme pressure performance while avoiding burrs and cracks in the workpiece.

From the above, it can be seen that the types of stamping oil used for stamping parts of different materials are also different. Choose the appropriate stamping oil according to the material of the stamping parts to give full play to its role. If the choice is not appropriate, it may also cause damage to the stamping parts.