Types Of Sheet Metal Stamping Processes There are a lot of different metal stamping processes. Each of them is quite basic but as a combination, they can yield almost any geometry possible. Here are the most widespread sheet metal stamping processes. Blanking is often the first operation to be carried out among the stamping processes. It requires a stamping press with a sharp punch. The metal sheets are usually supplied in large sizes such as 3×1,5 m. The majority of parts are not as big, so you’ll need to cut off the section of the sheet for your part, and it would be ideal to get the desired contour of the final part right here. So, blanking is applied to get the contour you need. Note that there are other ways to make a metal sheet blank such as laser cutting, plasma cutting or water jet cutting.