Analysis on the selection and function of metal shrapnel stamping parts

Among the metal stamping parts, metal shrapnel is a product we use more. It is an important part of the switch, with the help of the conductivity of the metal shrapnel, it plays a high-quality switch between the operator and the product. Hardware shrapnel generally determines the material of the shrapnel according to the purpose and performance of the shrapnel. For example, physical resilience is required. The frequency of use is higher and the pressure is higher. Generally, spring steel, carbon steel or high-hardness stainless steel is selected. After forming, heat treatment and quenching , Reduce its carbon content, increase the pressing service life of its shrapnel by increasing its hardness; if it is necessary to achieve physical properties such as easy welding, acid and alkali resistance, and increase conductivity, use copper to process shrapnel, such as phosphor copper shrapnel, beryllium copper shrapnel , Can be achieved through surface treatment methods such as electroplating (gold, silver, nickel, tin, etc.); in addition, for digital products such as electronic communications, the main process performance requirements are mainly reflected in accuracy, conductivity, and weldability, so use Copper materials to process shrapnel products are generally designated to use a certain fixed grade/hardness copper material, such as phosphor copper, beryllium copper, red copper, brass, bronze, etc. What are the main functions of hardware shrapnel? ① Control the movement of machinery, such as valve springs in internal combustion engines, control shrapnels in clutches, etc. ② Absorb vibration and impact energy, such as the buffer shrapnel under the car and train carriage, the vibration-absorbing shrapnel in the coupling, etc. ③ Store and output energy as power, such as shrapnel from watches and firearms. ④Used as a force measuring element, such as a dynamometer, shrapnel in a shrapnel scale, etc. The ratio of the load to the deformation of the shrapnel is called the stiffness of the shrapnel. The greater the stiffness, the harder the shrapnel. According to the nature of the force, shrapnel can be divided into stretch shrapnel, compression shrapnel, torsion shrapnel and curved shrapnel. According to the shape, it can be divided into dish-shaped shrapnel, annular shrapnel, plate shrapnel, spiral shrapnel, truncated cone scroll shrapnel and torsion bar shrapnel, etc. . Recommended article: What problems should be paid attention to in the processing of metal stamping parts Previous article: Advantages of deep drawing parts and mold hardness requirements