The hardness test of metal stamping parts produced by precision metal processing adopts Rockwell hardness tester. Small, complex-shaped stampings can be used to test small planes that cannot be tested on ordinary benchtop Rockwell hardness testers.

Precision metal processing and production

The processing of stamping parts includes blanking, bending, deep drawing, forming, finishing and other processes. The materials for stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal sheet and strip materials, such as carbon steel sheets, alloy steel sheets, spring steel sheets, galvanized sheets, tin-plated sheets, stainless steel sheets, copper and copper alloys Plate, aluminum and aluminum alloy plate, etc.

The PHP series of portable surface Rockwell hardness testers are ideal for testing the hardness of these stampings. Alloy stamping parts are the most commonly used parts in the fields of metal processing and machinery manufacturing. Stamping processing is a processing method that uses a mold to separate or form a metal sheet. Its application range is very broad.

The main purpose of the hardness testing of stamping materials is to determine 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. The aluminum alloy plate used for stamping parts can be tested with a Webster hardness tester. When the material thickness is greater than 13mm, a Barcol hardness tester can be used instead, and a barcol hardness tester should be used for pure aluminum plates or low-hardness aluminum alloy plates.

In the stamping industry, stamping is sometimes called sheet forming, but it is slightly different. The so-called plate forming refers to the forming method of plastic working with plate, thin-walled tube, thin profile, etc. as raw materials, which is collectively referred to as plate forming.