Metal stamping is a manufacturing process that uses a metal stamping die or a series of metal stamping dies to form a metal sheet into a three-dimensional workpiece. So under what circumstance, we should select the metal stamping, what are the advantages and disadvantages?
What Are the Advantages of Stamping?
1. One of the advantages of the stamping process is that the cost of using dies is low and the automation level is high.
The production and maintenance costs of metal stamping dies are often relatively lower than those used in other common processes. Secondary costs, such as cleaning and electroplating, are also cheaper than similar treatments in other metal manufacturing processes.
2. The dimensional accuracy of stamping parts is good.
The dimensional accuracy of stamping parts is guaranteed by the die, which has identical features. And the service life of the mold is generally long. Therefore, the stamping quality is stable and the interchangeability is good.
3. Stamping can process parts with large size range and complex shape.
Because of the mold processing, parts with thin wall, light weight, good rigidity, high surface quality and complex shape that are difficult to manufacture by other processing methods can be obtained.
4. The cost of stamping parts is low.
Stamping generally does not need to heat the blank, nor does it cut a lot of metal like cutting. Therefore, its material consumption is less, which not only saves energy, but also saves metal.
5. High stamping efficiency.
For ordinary presses, dozens of pieces can be produced per minute, while high-speed presses can produce hundreds of or thousands of pieces per minute, and each stamping stroke may result in one stamping part. Therefore, it is an efficient processing method. The stamping machine is relatively easy to be automated, and can use high-end computer control programs to provide higher precision, faster production and faster turnaround time. The improvement of automation level also reduces the labor cost.
What Are the Disadvantages of Stamping?
1. One of the disadvantages of stamping is that the cost of production die is high.
The dies used in stamping process are generally special, and most stamping products are completed by multiple different stamping processes. The die needs to be newly built, and the production of customized metal stamping die is a long pre production process. Mold manufacturing requires high precision. And the mold manufacturing needs long manufacturing cycle, large investment, many unpredictable problems, and high requirements for mold technicians’ experience. It is a technology intensive product. If the design must be changed in the production process, then the mold is also difficult to change.
2. Unfriendly to single piece and small batch production
As the stamping process must have the corresponding mold, it is most suitable for large batch production. There are certain restrictions on single piece and small batch production. Only when the production batch is large, the stamping processing method will be considered. The advantages of stamping can be fully reflected, so as to obtain better economic benefits.
3. The design of stamping die focuses on classical theory and experience, requires strong imagination and creativity, and has high requirements for die designers and manufacturers.
4. Large noise and vibration during production.
5.If the precision requirements of parts are too high, stamping production is difficult to meet the requirements.
6. Material bottleneck
It is a direction of international efforts to develop and research the cold forming of high-strength steel. At present, the research on hot forming process and equipment technology has been relatively mature internationally, but the cold forming field still needs to continue to develop.
High strength steel and ultra-high strength steel have well realized the lightweight of vehicle body and improved the crash strength and safety performance of vehicles, so they have become an important development direction of vehicle steel. However, with the improvement of the strength of the sheet metal, the traditional cold stamping process is prone to crack during the forming process, which is difficult to meet the processing requirements of high-strength steel plates.
KENENG can provide you with metal stamping, CNC machining processing and other molding services, whether small or large batches or mold production can meet your needs. If you need, please contact us.