Industrial products and commodities in daily life are almost all stamped products. With the advancement of processing technology, the improvement of customers and the environmental protection requirements of the earth, the products are developing in a small and lightweight direction. In the automotive parts, the use of thin-hardened steel sheets for automotive parts, that is, high-strength steel sheets (590 MPa or more) is expanding. 80% of the Japanese company's products are high-strength steels, and the development of forming technology and processing technology for high-strength steel sheets has been carried out.
The cold forming process is a processing method using plastic deformation at a temperature lower than the normal temperature or the recrystallization temperature. Compared with the hot forming process performed at a temperature higher than the recrystallization temperature, the cold forming process has an advantage that the processing accuracy is high without the influence of temperature, and work hardening can be utilized to improve the strength of the processed product. However, the disadvantage of cold forming is that the forming load is large, and it is necessary to apply a large external force during processing and to accumulate residual stress in the processed product.
Generally speaking, cold stamping processing consists of three major elements: 1 punching machine: a device for generating processing pressure by using a die; 2 stamping die: a tool for making a product shape according to a specified dimensional accuracy, which is divided into an upper die and a lower die; Material to be processed: The raw material of the product, mainly steel plate.
When performing cold stamping, the punch applies a machining force to the mold, and under the force, the mold copies the shape of the mold to the material to be processed to form a product. The press working is divided into cutting, separating, and forming processing using a plastic material to form a predetermined shape. Cutting, separating and forming products need
The cold forming process is a processing method using plastic deformation at a temperature lower than the normal temperature or the recrystallization temperature. Compared with the hot forming process performed at a temperature higher than the recrystallization temperature, the cold forming process has an advantage that the processing accuracy is high without the influence of temperature, and work hardening can be utilized to improve the strength of the processed product. However, the disadvantage of cold forming is that the forming load is large, and it is necessary to apply a large external force during processing and to accumulate residual stress in the processed product.
Generally speaking, cold stamping processing consists of three major elements: 1 punching machine: a device for generating processing pressure by using a die; 2 stamping die: a tool for making a product shape according to a specified dimensional accuracy, which is divided into an upper die and a lower die; Material to be processed: The raw material of the product, mainly steel plate.
When performing cold stamping, the punch applies a machining force to the mold, and under the force, the mold copies the shape of the mold to the material to be processed to form a product. The press working is divided into cutting, separating, and forming processing using a plastic material to form a predetermined shape. Cutting, separating and forming products need
