How are stamping dies classified?


There are many forms of stamping dies, and they can gen […]

There are many forms of stamping dies, and they can generally be classified according to the following main features: Classification according

to the nature of the process (1) punching die A die that separates the material along a closed or open contour line. Such as blanking die,

punching die, cutting die, cutting die, trimming die, cutting die and so on. (2) Bending mold A mold for bending a sheet blank or other blank

along a straight line (bending line) to obtain a Plastic Thin Wall Moulds Suppliersworkpiece with a certain angle and shape. (3) Deep-drawing die is a die in which a sheet blank

is made into an open hollow part, or the hollow part is further changed in shape and size. (4) Forming mold is a mold that directly copies the

blank or semi-finished product 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. 2. Classification

according to the degree of process combination (1) Single process die In a stroke of the press, only one stamping process is completed. (2)

Compound mold There is only one station. In one stroke of the press, two or more stamping processes are completed at the same station at the

same time. (3) Progressive die (also known as continuous die) In the feed direction of the blank, there are two or more stations. During one

stroke of the press, two or two stations are successively completed at different stations. Die for the above stamping process. 3. Classification

according to the deformation characteristics of the material Typical structure of the mold: Figure 1.1.2 is a pair of single-stage blanking dies

with guide pins and guide sleeves. It consists of upper and lower molds. The upper mold is composed of mold shank 5, upper mold base 3, guide

sleeve 2, male mold 10, backing plate 8, fixing plate 7, discharge plate 14 and screws and pins. The mold is composed of a lower mold base 17, a

guide post 1, a concave mold 11, a guide plate 15, a receiving plate 18, and screws, pins and other parts. The upper die is mounted on the

slider of the press through the die handle 5 and moves up and down with the slider, so it is called a movable part. The lower mold is fixed on

the press table through the lower mold base, so it is also called the fixed part. Generally, the mold is composed of two types of parts: one is

a process part, which directly participates in the completion of the process and has direct contact with the blank, including working parts,

positioning parts, unloading and pressing parts; Structural parts. Such parts do not directly participate in the completion of the process, nor

do they have direct contact with the blank. They only guarantee the completion of the mold process, or improve the function of the mold,

including guide parts, fastening parts, standard parts. Other parts are shown in Table 1.1.3. It should be pointed out that not all the dies

must have the above six parts, especially single-process dies, but working parts and necessary fixed parts are indispensable.