Automobile mould is an important part of many industries, so we need to pay attention to the efficiency of automobile mould design. At the same time, we can improve the efficiency of mold production and design from the following aspects.
1, mold material selection of both to meet customer requirements for product quality, also need to consider to the cost of materials and in the strength of the set period, also according to the type of mold, using the way of working, processing speed, the main failure form factors such as material selection.
For example, the main failure mode of punching die is the edge wear, and the surface hardness is high and the wear-resistant material is selected. The stamping die is mainly subjected to periodic load, which can cause the surface fatigue crack, which leads to the peeling of the surface, which is to choose the material with good surface toughness. The deep die should choose materials with especially low friction coefficient; Because of the cyclic thermal stress, the pressure casting mould should choose the material with high thermal fatigue. For injection mold, when the plastic parts for materials such as ABS, PP, PC, mould materials can choose hard quenched and tempered steel, when the plastic parts for high smoothness, transparent material, optional corrosion resistant stainless steel, when the products batch big, can choose quenched tempered steel.
2, mold design is the most important step to improve the quality of the mould, need to consider many factors, including the selection of die materials, die structure of the usability and safety, the machinability of mold parts and mould maintenance convenience, these at the beginning of the design should be considered more carefully.
When the mould is designed, it should be as compact as possible and easy to operate, and also ensure that the parts of the mould have sufficient strength and rigidity. When the mold structure is allowed, the corners of the mould parts should be designed as round corners to avoid stress concentration. For the concave mold, cavity and part of the punch mode, the core can be combined or set to eliminate stress concentration, long, elongated die or core, and appropriate protective measures should be taken in the structure. For cold die, the device should be configured to prevent blockage of parts or scrap. At the same time, it is also important to consider how to reduce the influence of sliding fitting and frequent impact on the quality of mould.
