in the processing of sheet metal shells, the processing technology of sheet metal shells has established automatic actual operation under the rapid development of laser cutting technology, and continue to enhance the sheet metal shell processing the actual effect of the obvious development trend. Zhejiang province sheet metal processing inform everyone that it is generally defined as thin and stable steel casting parts and other mechanical parts in the whole process, which are matched with castings. Sheet metal processing includes traditional cutting and blanking, blanking, bending and forming methods and main processing parameters, stainless steel laser processing and the structural characteristics of various cold dies and the main parameters of processing technology, the basic principles and processing methods of various facilities and their new stamping technology and new technology applications. Parts of the metal material parts processing called sheet metal processing. When processing the back shell of metal materials, the processing process of the testing equipment should be transmitted immediately, and the corresponding evaluation procedure process should be given to the customer from the order information, and then the goods should be produced in large quantities. Cutting: Hydraulic shearing machine for cutting simple hot rolled strip parts. Suitable for the blanking of die shells. It has a low price and a precision of less than 0.2, but it only processes grooved or rounded strips or blocks.