What material is used in metal stamping die?
Metal stamping die is beryllium copper BECU, steel plate SK, phosphor bronze PB, tinplate SPTE, aluminum AL, stainless steel plate SUS, white copper NS, hot rolled steel plate SECC, cold rolled steel plate SPCC and so on. The better the plasticity of the metal stamping material, the greater the bright belt of the stamping product, the smaller the fracture zone.
The hardness of metal stamping parts is tested by Rockwell hardness tester. Small, complex shaped stamping parts that can be used to test surfaces that are too small to be tested on a common bench Rockwell hardness tester.
Stamping parts processing includes punching, bending, drawing, forming, finishing and other processes. The materials processed by stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal plate and strip materials, such as carbon steel plate, alloy steel plate, spring steel plate, galvanized plate, tinplate, stainless steel plate, copper and copper alloy plate, aluminum and aluminum alloy plate.
The PHP series portable surface Rockwell hardness tester is ideal for testing the hardness of these stamped parts. Alloy stamping parts are the most commonly used parts in the field of metal processing and mechanical manufacturing. Stamping parts processing is the use of mold to make the metal plate strip separation or forming processing method. Its application range is very broad.
Extended data
The main purpose of the hardness test of stamping materials is to determine whether the degree of annealing of the purchased metal sheet is suitable for the subsequent stamping parts processing, and different kinds of stamping parts processing processes require different hardness levels of sheets. The aluminum alloy plate used for stamping parts processing can be tested by Wechsler hardness tester. When the thickness of the material is greater than 13mm, the Babbiter hardness tester can be used for pure aluminum plate or low hardness aluminum alloy plate.
In the stamping industry, stamping is sometimes called sheet metal forming, but there is a slight difference. The so-called plate forming refers to the forming method of plastic processing with plates, thin-walled tubes, thin profiles, etc., as raw materials, collectively referred to as plate forming, at this time, the deformation of the direction of the thick plate is generally not considered.
Design principles:
(1) The designed stamping parts must meet the product use and technical performance, and can be easily assembled and repaired.
(2) The designed stamping parts must be conducive to improving the utilization rate of metal materials, reducing the variety and specifications of materials, and reducing the consumption of materials as much as possible. Where permitted, low-cost materials are used to make the parts as free of waste and as little waste blanking as possible.
(3) The design of the stamping part must be simple in shape and reasonable in structure, in order to facilitate the simplification of the mold structure and the simplification of the number of processes, that is, the least and simplest stamping process to complete the processing of the entire part, reduce the use of other methods of processing, and is conducive to the stamping operation, easy to organize the realization of mechanization and automated production, in order to improve labor productivity.
What are the commonly used stamping materials
Commonly used stamping materials are: a variety of metal sheet and a variety of non-metallic material sheet. Brittle materials can not be stamped (easy to break, such as: ceramics, glass), too hard materials can not be stamped (high hardness, the mold is easy to damage).
What kind of steel is used for stamping die
a, blanking die: the die that separates the material along the closed or open contour line. Such as blanking die, punching die, cutting die, incision die, cutting die, cutting die, etc.
b, bending die: the sheet blank or other blank along the straight line (bending line) to produce bending deformation, so as to obtain a certain Angle and shape of the workpiece mold.
c, drawing die: is the blank sheet metal made into open hollow parts, or hollow parts to further change the shape and size of the mold.
d, forming die: the blank or semi-finished workpiece is directly copied and formed according to the shape of the convex and concave die, and the material itself only produces local plastic deformation of the die. Such as expansion die, shrink die, flaring die, undulating forming die, flanging die, shaping die, etc.
Reference source: Baidu Encyclopedia – stamping die