Introduction to Punching Mold
Punching molds, also known as punching die, it is a kind of processing tool used to make surface parts with shape and shape of regular polygon, polygon, polyline and special shape. Punching molds are mainly used in mass production of sheet metal parts and materials of single/multi-layer laminates.
The common types of punching molds can be divided into two types by the material of which the mold is made. One is made of phosphorus bronze and the other is made of special alloy steel. The materials used for punching molds are mainly divided into three categories according to their hardness: hard punching die, medium punching die, and soft punching die. Dinstandard die, the most common type of punching molds in industry, are those made of special alloy steel. This type of mold has sharp punching edges, long life and good adaptability.
The working principle of the punching die is simple. When the sheet metal enters the punch and is pressed against the punch die surface, the sheet metal material is plastically deformed and simultaneously cut along the contour of the punch shape. The cutting lines and punching shape can be adjusted easily with a different punch. The shape of the part and accuracy of the size are determined by the precision of the punch and the advanced technologies used in machining.
The punching mold can work with various kinds of presses to complete punching, blanking and even forming process, including press, hydraulic press, eccentric press, etc. The size of the press depends on the size of the processed material and the die size. For example, the die size ranges from a few millimeters to hundreds of millimeters, and the corresponding press range is from a few tons to hundreds of tons.
The working efficiency and precision of the punching die can be broken down into three significant factors: the sharpness of the punch die edge, the press and the material of the punch die. Sharp punching die edge, as well as high precision machining and heat treatment, ensures the punch die to work with higher accuracy, smooth cut and less burr. For presses, a press with higher precision and higher speed will enable punches to work more tightly. As for materials, harden special alloy steel is widely used due to its higher strength and durability.
With the advantages of high efficiency and accuracy, punching molds are widely used in the automobile, electronics, electrical appliances, and other manufacturing industries. Besides, the cost of punching die is relatively low and thus it is a great choice for quick and economical fabrication.
Conclusion
The punching mold plays a very important role in the sheet metal processing industry. It helps fabricators to quickly and accurately process sheet metals of all sizes and shapes. The punching die can work with various kinds of presses to complete the punching, blanking and even forming process. In addition, the working efficiency and precision of the punching die can be broken down into three significant factors: the sharpness of the punch die edge, the press and the material of the punch die. With all these advantages, the punching mold has become an essential part in the sheet metal processing industry.
