What is the Difference Between Sheet Metal Processing and Metal Stamping?

The metal stamping process is divided into bending and stretching processes, while sheet metal processing is mainly shear, bending, and welding. There are great differences in the process flow between the two. So what's the difference between metal stamping and sheet metal processing?

Ⅰ. Process of metal stamping and sheet metal processing

Sheet metal processing is not only a pivotal technology that sheet metal technicians need to master, but also an important process of sheet metal product forming. Sheet metal processing mainly uses sheet metal bending. The machines used are mainly bending machines, and the parts are relatively large. The process is generally: first cut the plate (blanking), then bend, and then weld. The machine used for metal stamping is a punch. The precision of parts should be high. Generally, a punch die should be used to ensure accuracy. Process: cutting (blanking) and deburring.

Ⅱ. The difference between sheet metal processing and metal stamping

1. The quantity of sheet metal processing is different from that of metal stamping: sheet metal processing is suitable for hand board or small batch production. To be exact, it is proofing, and then the quantity is relatively small. If the mold is opened, the cost of the mold will not be earned back. Metal stamping is mass production and precision requirements of things, the output is relatively large. It must be stamped on the die.

2. The process of sheet metal processing is different from that of metal stamping: sheet metal parts are something that workers knock manually with simple equipment such as hammer. It is characterized by low efficiency. The quality of parts is not stable enough through manual control, but the cost is low. It is used in small batch production or trial production stage. Stamping parts are metal sheet parts stamped by dies and presses. It is characterized by high efficiency, part quality controlled by die, strong stability, but high cost. It is used for mass production.

3. The process of sheet metal processing is different from that of metal stamping: stamping parts rely on presses and moulds to exert external forces on plates, strips, pipes and profiles to produce plastic deformation or separation, so as to obtain the desired shape and size of the workpiece. Stamping and forging both belong to plastic processing. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips.

Sheet metal processing is a comprehensive cold working process for sheet metal, including shearing, punching / cutting / compounding, folding, welding, riveting, splicing, forming, etc. Its remarkable feature is that the thickness of the same part is the same. The products with sheet metal processing are called sheet metal parts. The sheet metal parts referred to by different industries are generally different, which are mostly used for assembly.