Sheet metal cutting is an important process in sheet metal forming. It includes the traditional cutting, blanking, bending and forming methods and process parameters, but also contains a variety of cold stamping die structure and process parameters, a variety of equipment operating principles and operating methods, but also contains new stamping skills and new technology. For any sheet metal part, there is always a specific manufacturing process flow.

With the difference in sheet metal structure, the process flow is also different, but generally does not exceed the following points. Plan and draw the part drawing of the sheet metal component, also known as a three-view drawing. Its function is to express the structure of its sheet metal parts by drawing method. Sheet metal cutting and processing process to make an open diagram, but also a structure of messy parts into a flat piece.

there are many kinds of blanking methods, mainly including the following methods: ① blanking by shearing machine: using shearing machine to cut out the length and width scale of the open figure. If there is punching and corner cutting, then turn the punch to combine with the die punching and corner cutting for forming. ② Punch blanking: the use of a punch in one step or more steps on the plate will be opened after the parts of the flat structure punching forming. Its strength is the consumption of short working hours, high efficiency, can reduce processing costs, often used in mass production. ③ NC NC blanking: NC blanking must first write the NC machining program. Sheet metal appearance design is the use of programming software, the production of the open figure written into NC CNC machine tools can be recognized by the program. Let it follow these procedures step by step on an iron plate, and punch out the structural shape of its flat piece.