Matters needing attention in the deep drawing of micro-electromechanical stainless steel stretched parts: the procurement of raw material stainless steel must comply with international formal raw materials, and tempering must be carried out before stamping.

The structure of the mold and the stamping speed are to improve the difficulty of deep drawing, so it is better to make the blank holder surface oblique, and the drawing blank is completely in contact with the die on the blank holder surface under the action of the blank holder. It can make the material at the fillet of the die bear relatively large blank-holding force.

During the deep-drawing process of micro-electromechanical stainless steel drawing parts, the die sticking is serious, which leads to serious die loss and poor appearance of stamping parts. We must use anti-sticking materials when making dies. Anti-adhesive materials include: copper-based alloys, 3054 alloy cast iron and other materials.

When stamping micro-electromechanical stainless steel drawing parts, lubricating oil should be used properly, which can reduce the friction coefficient between the material and the mold, thereby reducing the drawing force; generally, the lubricating oil is applied to the material first, and then put into the die Stamping deep drawing. If it is a cylindrical drawing part with low surface quality requirements, the punch can be processed without lubricating oil; it is beneficial to reduce the drawing coefficient.

In order to prevent cracks and ruptures in the micro-electromechanical stainless steel drawing parts during the deep-drawing process, we must reasonably arrange the process flow, select a reasonable drawing coefficient, and perform reasonable intermediate annealing. The initial drawing coefficient of stainless steel is generally selected to be close to the lower limit, and the subsequent drawing coefficient is taken as the middle value.