The common factors that lead to the problems in the stamping process of stainless steel stamping parts, reasonable arrangement of the process, the use of special stamping drawing oil, the selection of reliable raw materials can effectively improve the quality of the workpiece

 

Common problems and solutions in the stamping of stainless steel stamping parts

 

Common problems and solutions in the stamping of stainless steel stamping parts:

1. Scratches are formed on the surface of stainless steel stamping parts

The scratches on the surface of stainless steel stamping parts are mainly due to the relative movement of the workpiece and the mold surface. Under the action of certain pressure, the local surface of the blank and the mold directly produces friction. In addition, the deformation heat of the blank makes the blank and metal chips deposited on the mold surface, so that the surface of the workpiece scratches produce scratches.

Stainless steel stamping parts

2. The stainless steel stamping workpiece is broken

The cold hardening index of austenitic stainless steel is high, and the transformation will induce the Martensitic phase. Martensite is relatively brittle and therefore prone to cracking. In addition, with the increase of deformation amount in plastic deformation, the induced martensite content will also increase with the increase of deformation amount, and the resulting residual stress will be greater, and the cracking will be more easy in the process of processing.

Stainless steel stamping parts

3, stainless steel stamping die too fast wear

The die wear will be caused by the small die clearance of stainless steel stamping parts, the poor alignment of the convex and concave dies, the lack of precision of die base, die guide component and turret insert, etc. In addition, continuous stamping of the same die for a long time causes punch overheat, and multiple local punching, such as step punching, punching Angle or shearing side force will make punch to one side, resulting in serious die wear.

Stainless steel stamping parts

4, stainless steel stamping parts die with material

The cutting edge of stainless steel stamping die is sharp, die into the modulus and the clearance of the die is reasonable, and other factors will lead to die with material problems. In addition, if the use of non-special stamping oil, due to oil oxidation caused by glue, viscosity increase and other problems will also appear with feed.

Stainless steel stamping parts

5. Quality of stamping oil used for stainless steel stamping parts

Stainless steel stamping oil selection is very important, good performance of stamping drawing oil contains sulfur chlorine compound additives, in order to ensure the extreme pressure processing performance at the same time, avoid the workpiece hardening, deformation, burr, fracture and other problems. At the same time for the workpiece cleaning, should try to choose a low viscosity punching and drawing oil.

Stainless steel stamping parts

The above is the common factors that lead to the problems of stainless steel stamping process, reasonable arrangement of the process, the use of special stamping drawing oil, the selection of reliable raw materials can effectively improve the quality of the workpiece.