In sheet metal processing, although stamping and punching are both common processes, they are significantly different.
Stamping mainly uses large presses and manipulators to cold press and high-temperature form metal plates, which can produce parts with complex shapes such as car doors, and can process thicker thickness. Punching, on the other hand, uses high-quality molds and smaller equipment to cut holes of fixed shapes on metal plates, and has strict requirements on the thickness and hardness of metal plates. In addition, stamping has higher processing accuracy due to the precision of the equipment; the punching accuracy depends on the mold design and material. Therefore, when choosing a processing method, it is necessary to weigh the complex shape manufacturing capability of stamping and the efficient hole processing characteristics of punching according to specific needs. Of course, here we will explain the more detailed differences between the two, such as process differences and equipment differences.
Definition and scope of application
Stamping: Stamping is a forming processing method that applies external force to plates, strips, pipes and profiles through presses and molds to cause plastic deformation or separation, thereby obtaining workpieces (stamping parts) of the required shape and size. Stamping is widely used in industries such as automobiles, electrical appliances, instruments and meters, household appliances, and hardware products.
Punching: Punching is a stamping process that separates waste materials from materials or process parts along a closed contour, and is used to obtain the required holes on materials or process parts. Common applications include heat dissipation holes on computer cases, screw holes on various electrical appliances.
Specific operation method
Stamping: Apply external force to the material through the die to cause plastic deformation or separation, and finally obtain the required shape and size. A variety of processes can be completed during the stamping process, such as punching, trimming, and stretching.
Punching: The specific operation is to separate the waste materials from the material along the closed contour through the die, so as to obtain the required holes on the material. Common hole shapes include round holes, square holes, waist-shaped holes, special-shaped holes.
In short, stamping parts and punching parts are different metal manufacturing processes, each with its own strengths. Under the premise of ensuring quality, the appropriate process form should be selected according to the specific situation. Of course, if you entrust a professional sheet metal company to process sheet metal products, then you will rest assured to hand over these things to the sheet metal manufacturing company. Because after receiving your requirements, the sheet metal manufacturing company will arrange what kind of processing technology to complete the processing of the parts according to your requirements, and will discuss and confirm with you. If you are choosing a metal stamping partner, you can choose Mulan Group, which has 12 years of sheet metal stamping experience and serves customers in more than 30 countries around the world.
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