At present, it can be said that hardware stamping parts, whether in industrial production or daily life, have a wide range of applications. We all know that hardware mold processing is a kind of processing method of stamping and forging materials through punching machine and mold. It has the advantages of convenient operation, high stamping precision, easy to realize mechanization and automation, etc. The following Xiaobian will introduce to you the basic process requirements and classification of hardware mold processing. Welcome to read!
The basic process requirements of hardware mold processing:
1. Materials used for metal mold processing should not only meet the technical requirements of product design, but also meet the stamping process and processing requirements after stamping (such as cutting, electroplating, welding, etc.).
2. In the design of the structural shape of the parts of the hardware mold, it is recommended to use a simple and reasonable structure of the surface (such as plane, cylindrical surface, spiral surface) and their combination, as far as possible to reduce the number of processing surfaces and processing area.
3. Choose a reasonable mechanical manufacturing method, can directly use profiles, casting, forging, stamping, welding, etc. The selection of blank is related to the specific production technology conditions and generally depends on the mass production, material properties and processing possibilities.
4. The requirements of hardware stamping and forming performance. For the forming process, in order to improve the stamping deformation and the quality of parts, the material should have good plasticity. Small bending ratio, large plate thickness direction coefficient, small plate plane direction coefficient, yield strength to elastic modulus ratio is small. For the separation process, the material does not need to have good plasticity, but it should have some plasticity. The better the plasticity, the harder it is to separate.
5. Specify the cost of machining parts with appropriate manufacturing accuracy and surface roughness. The processing cost of metal stamping parts will increase with the improvement of accuracy, especially in the case of high accuracy. Therefore, high precision should not be pursued without sufficient evidence. Similarly, the surface roughness of metal stamping parts should also be made appropriate according to the actual needs of the matching surface.
The processing technology of hardware mold is more complex to ensure that the performance of hardware stamping parts meet the requirements of use, we need to follow the corresponding process requirements to ensure the feasibility of production.
Hardware mold processing technology classification:
Metal mold processing technology can be divided into hot stamping and cold stamping two categories.
Hot stamping of metal die is a stamping method that heats metal materials to a certain temperature range. Hot washing has the characteristics of eliminating internal stress, avoiding work hardening, increasing material plasticity, reducing deformation resistance and reducing equipment power consumption.
Cold stamping refers to the processing of metal materials at room temperature, generally applicable to the thickness of less than 4mm blank. Cold flushing features: no heating. No oxide skin, good surface quality, easy operation, low cost. The disadvantage is work hardening, when the metal will lose further deformation ability. Cold stamping is suitable for processing billet thickness uniform, small fluctuation range, smooth surface, no spots, no scratches and other materials.
The structure of a die in stamping: A die is a die that separates or deforms metal materials. It consists of an upper die and a lower die. The handle of the upper die is fixed on the slider of the punch press, and the lower die is fixed on the work table of the punch press.
The punch and die are the working parts of the die that deform or separate the blank and are fixed to the upper and lower formwork with the platen. The upper and lower formwork are provided with guide sleeves and guide posts respectively, and the guide punch is aligned with the die. The guide plate and the locating pin are used to control the direction and length of the blank respectively. The role of the discharge plate is to remove the workpiece or blank from the punch after stamping.
Punching die classification: punching die is an essential die in stamping production. Punching die can be divided into simple die, continuous die and compound die.
Thank you for reading. The above is the introduction of the basic process requirements and classification of hardware mold processing. Some content comes from the network, for reference only. If you want to know more about the precision metal mold processing details, welcome to call for detailed inquiries, dedicated to your service.