What is a stamping die？

Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, called cold stamping die (commonly known as cold stamping die). Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts.

Classification according to the nature of the process

a. Punching die A die that separates materials along a closed or open outline. Such as blanking die, punching die, cutting die, slitting die, trimming die, cutting die, etc.

b. Bending mold A mold for bending and deforming a blank or other blank along a straight line (bending line) to obtain a workpiece with a certain angle and shape.

c. The drawing die is a die for making the blank of the sheet into an open hollow part, or to further change the shape and size of the hollow part.

d. Forming mold is a mold that directly replicates the blank or semi-finished workpiece according to the shape of the convex and concave molds, and the material itself only produces local plastic deformation. Such as bulging mold, necking mold, flaring mold, undulating forming mold, flanging mold, shaping mold, etc.

e. Riveting mold is to use external force to connect or overlap the participating parts in a certain order and manner to form a whole

Classification according to the degree of process combination

a. Single process mold In one stroke of the press, only one stamping process mold is completed.

b. Compound mold There is only one station, and in one stroke of the press, two or more stamping processes can be completed at the same time on the same station.

c. Progressive die (also called continuous die) In the feeding direction of the blank, there are two or more stations. In one stroke of the press, two or two passes are completed successively on different stations Die for the above stamping process.

d. The transfer mold combines the characteristics of single-process mold and progressive mold. The robot transfer system is used to realize the rapid transfer of the product in the mold, which can greatly improve the production efficiency of the product, reduce the production cost of the product, save the material cost, and have stable quality reliable.

Classified by product processing method

According to different product processing methods, molds can be divided into five categories: punching and shearing molds, bending molds, drawing molds, forming molds and compression molds.

a. Punching and shearing die: the work is done by shearing. Commonly used forms are shearing die, blanking die, punching die, trimming die, edge die, punching die and punching die.

b. Bending mold: It is the shape of bending the flat blank into an angle. Depending on the shape, accuracy and production volume of the part, there are many different forms of mold, such as ordinary bending die, cam bending die, curling Die, arc bending die, bending punching die and twisting die, etc.

c. Drawing mold: Drawing mold is to make flat blank into seamless container with bottom.

d. Forming die: refers to the use of various local deformation methods to change the shape of the blank. Its forms include convex forming die, curling edge forming die, necking forming die, hole flange forming die, and round edge forming die.

e. Compression die: It uses strong pressure to make the metal blank flow and deform into the required shape. The types include extrusion die, embossing die, embossing die, and end pressure die.