For a new gasket design of a burr without punching die. Die structure of the module is installed,punching expected to adopt a flexible device. To achieve a burr in die bottorn of the top institutions set up anti. A new style punch die without burrs is designd .The punching without burrs on the metal plate can be carried out by using this die , the length of bringt shearing fracture to the hole can be increased to 80%~85% of material thickness and the punched hole’s precision of size , shape and position can be improved extremely, so that the processing effect of the precise punching can be achieved with this kind of die .Because the die can be easily made and used on the ordinary punching press , so it can be widely used in the punching.
