Whether to use a spring-loaded discharge plate or a fixed discharge plate for stamping parts depends on the magnitude of the discharge force, with material thickness being the main consideration factor. Next, the editor will introduce the material selection for stamping machines:
The hardness testing of stamped parts adopts Rockwell hardness tester. Small and complex shaped stamped parts can be used to test surfaces that are too small to be tested on ordinary desktop Rockwell hardness testers. Alloy stamping parts are commonly used components in the fields of metal processing and mechanical manufacturing. Kunshan stamping processing is a processing method that uses molds to separate or form metal plates and strips. Its application range is very broad.
Stamping processing includes processes such as punching, bending, deep drawing, forming, and finishing. The materials used for stamping processing are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal sheet and strip materials, such as carbon steel plate, galvanized plate, tin plated plate, copper and copper alloy plate, aluminum and aluminum alloy plate, etc.
Any drawings or symbols in the design drawings of stamping dies that are not easy to represent and must be ensured during manufacturing should be specified in the technical conditions. Its content varies with different parts, requirements, and processing methods. The main points should be noted as follows:
(1) Requirements for materials. Such as the heat treatment method and the hardness that the heat treated surface should achieve.
(2) Requirements for surface treatment, surface coating, and surface modification (such as sharp angle blunting, sand removal).
(3) The description of the rounding radius is not specified, and some parts require modification and processing.
(4) Other special requirements.
Hardness testing of stamping materials
The hardness testing of stamping materials is mainly aimed at determining whether the annealing degree of the purchased metal sheet is suitable for the subsequent stamping processing. Different types of stamping processing techniques require sheets of different hardness levels. Aluminum alloy plates used for stamping parts processing can be tested using a Vickers hardness tester. When the material thickness is greater than 13mm, a Babbitt hardness tester can be used instead. Pure aluminum plates or low hardness aluminum alloy plates should use a Babbitt hardness tester.
