Classification of stamping dies
There are many types of stamping dies, and the dies are also classified according to the three aspects of working properties, mold structure, and mold material.
Classification according to process properties
a. Punching die A die that separates the material along the closed or open contour line. Such as blanking die, punching die, cutting die, cutting die, trimming die, cutting die and so on.
b. Bending mold A mold for bending a sheet blank or other blank along a straight line (bending line) to obtain a workpiece with a certain angle and shape.
c. Deep-drawing die is a mold for making blanks of sheet metal into open hollow parts or further changing the shape and size of hollow parts.
d. Forming mold is a mold that directly copies 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 die, necking die, flaring die, undulating forming die, flanging die, shaping die and so on.
e. Riveting mold is to use external force to make the participating parts connected or overlapped together in a certain order and manner to form a whole.
Classification according to the degree of process combination
a. Single process die In one stroke of the press, only one stamping process is completed.
b. The compound die has only one station. In one stroke of the press, two or more stamping processes can be completed at the same station at the same time.
c. Progressive die (also known as continuous die) has two or more stations in the feeding direction of the blank, and completes two or two successively at different stations during one stroke of the press. The die for the above stamping process.
d. The transfer mold combines the characteristics of single-step mold and progressive mold. The use of a robotic transfer system to achieve rapid product transfer in the mold can greatly improve the production efficiency of the product, reduce the production cost of the product, save material costs, and have stable quality reliable.
Classification by product processing method
Depending on the product processing method, the molds can be divided into five categories: punching and shearing molds, bending molds, drawing molds, forming molds and compression molds.
a. Punching and shearing dies: The work is completed by shearing. Commonly used forms are shearing dies, blanking dies, punching dies, trimming dies, trimming dies, punching dies, and punching dies.
b. Bending mold: It is a shape that bends the flat blank into an angle. Depending on the shape, accuracy and production volume of the part, there are many different types of molds, such as ordinary bending dies, cam bending dies, curling. Punching dies, arc bending dies, bending embossing dies and twisting dies.
c. Drawing mold: The drawing mold is a flat container with bottoms made of flat blanks.
d. Forming mold: refers to using various local deformation methods to change the shape of the blank. The forms are embossing forming dies, curling forming dies, necking forming dies, hole flange forming dies, and round edge forming dies.
e. Compression mold: It uses strong pressure to deform and deform the metal blank into the desired shape. Its types include extrusion dies, embossing dies, embossing dies, and end-pressure dies.
