Precision metal partsmedical equipment stamping parts

About punching parts

Punching holes with a diameter equal to or less than twice the thickness of the material are referred to as small-diameter holes in stamping parts processing. In regular stamping parts processing and punching, the minimum hole diameter has an impact on the thickness of the material. Minimum limit value: Drilling and reaming techniques are typically employed when the punching diameter is less than the minimum limit value, although their processing efficiency is much inferior to that of stamping techniques;

In recent years, the processing method of these micro holes is gradually being replaced by the stamping method. Now this technology is developing rapidly. When punching small holes in the plate, when the material thickness is greater than the diameter of the punch, the punching process does not It is not a shearing process, but a process of extruding the material into the concave mold through the punch. At the beginning of extrusion, part of the punched-out waste material is compressed and squeezed into the surrounding area of the hole, so the thickness of the punched-out waste material is generally smaller than the thickness of the raw material. When punching small holes in stamping parts, since the diameter of the punching punch is very small, if punched using ordinary methods, the small punch will easily break. Therefore, efforts must be made to increase the strength of the punch to prevent it from breaking and bending.