For those who are not familiar with metal fabrication, it’s easy to get confused between metal punching and stamping. However, their distinction is something you need to master if you’re in civil, rail, or agriculture industries, which require metals in most of their constructions and other processes. To help you in this matter, here is a quick overview of the differences between these two processes:
Metal punching, such as the ones carried out by steel fabrication companies like Kenro, is used to create a single feature in a metal sheet. It can be rounds, rectangles, dimples, lances, and other types of single punches. On the other hand, metal stamping produces an entire piece with multiple features by pressing a blank metal sheet between a die (which defines the outside shape of the metal) and a punch (which defines the inside shape of the metal).
Metal punching is ideal for a blank sheet that requires multiple hits. But since the tool punches the sheet for every rectangular or round hole it needs, metal punching is not appropriate for high-volume productions. In contrast, metal stamping is perfect for mass production. The metal stamping tools only need to press once for every piece they are required to create, so they can produce many pieces in a short period of time.
Tools needed in metal punching are not costly, as most punches are not in complex shapes. Hence, this process is a cheaper fabrication method than metal stamping. The die and punch plates in metal stamping tools must be shaped specifically to create the desired shape and look of a fabricated metal piece. So, it is no wonder that stamping tools are somewhat expensive.
After reading these differences, you now have a better idea of which method you should employ for your project. Remember the distinction very well so the next time you need fabricated metal pieces at work, you can easily decide on how to get them.