3D printing is not to replace Sheet Metal Processing and other processes. In fact, at least in the future for a long time is not likely. From the current development trend, 3D printing has formed an effective combination with sheet metal processing, making up for the shortcomings of these two processes in terms of forming restrictions. Sheet metal processing is widely used in electrical and electronic, automotive, telecommunications, medical and other industries. Sheet metal is the skeleton that supports and shapes products, such as automobiles, computers or mobile phones. Sheet metal parts design and manufacturing is becoming a key stage in the development of new products, the trend is diversified, small batch production. In the sheet metal manufacturing process, various molds are often used. Taking automotive sheet metal parts as an example, a variety of molds such as punching dies, cutting dies, forming dies, separation dies, stamping dies, bending punches, etc. will be used. The cost of manufacturing molds is high and time-consuming. Therefore, it is not suitable for the production of small batch sheet metal parts. So when manufacturing sheet metal parts in small batches, many sheet metal plants use a combination of laser cutting and numerical control bending technology. This process does not require molds, is economical, has a short cycle, and is suitable for the rapid production of simple structures. But for some special-shaped sheet metal parts, it is powerless. Some metal plate structures are complex and cannot be manufactured by cutting and bending. Due to its thin wall thickness, it cannot be manufactured by milling. So there are only two options, one is stamping, and the other is 3D printing. Stamping has the advantages of high precision and high realization of design functions, but the mold production cycle is long and the cost is high. Metal 3D printing can be delivered in just 3 days, and it can also fully realize the design function. Nowadays, with the increasing variety of products, the demand for diversity and small batches in the processing of parts is increasing. Therefore, many manufacturers generally believe that the integrated production model of sheet metal processing and 3D printing will be one of the mainstream models of the future manufacturing industry.