How to test the quality of the hardware stamping parts factory + stamping parts around Piaoyang City?

Metal stamping parts and other products are widely used in our daily life. With the rapid development of modern society, the people's demand for stamping is increasing, but how to check the quality? 15 years ago, 'Hardware' tells you about the hardware stamping parts factory around Piaoyang City! ! ! What is the testing of metal stamping parts: 1. Chemical analysis and metallographic inspection analyze the content of chemical elements in the material, determine the level and uniformity of the material grain size, and evaluate the free cementite, band structure and non-metallic inclusions in the material The level of the material, check the material shrinkage, porosity and other defects. 2. Material inspection The materials processed by stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) metal plate and strip materials. The raw materials of metal stamping parts should have quality certificates to ensure that the materials meet the specified technical requirements. When there is no quality certificate or due to other reasons, the metal stamping parts manufacturer can select raw materials for re-inspection as needed. 3. Formability test Perform bending test and cupping test on the material to determine the work hardening index n value and plastic strain ratio r value of the material. In addition, the steel plate formability test method can be in accordance with the thin steel plate formability and test method. get on. Piaoyang Peripheral Metal Stamping Parts Factory has been focusing on precision metal stamping for 15 years. It has accumulated 50,000 sets of precision mold processing customization experience + stamping precision up to ± (positive/negative) 0.01mm, and is the preferred partner of 15,000 companies worldwide. Choose, choose success If you have stamping needs, Hardware looks forward to your call: