Aluminum shell processing material Aluminum alloy is a kind of non-ferrous metal structural material widely used in industry, and aluminum alloy enclosure is a variety of shells made of aluminum alloy processing as raw materials. It is also a commonly used electronic packaging material on the market. The aluminum alloy enclosure can be cut and die-cast at will. The processing technology of aluminum alloy enclosure frame will be briefly introduced below.
1. Internal high pressure forming technology of aluminum alloy enclosure.
Internal high pressure forming technology is a new forming technology that has only appeared in recent years, and it is currently a research frontier in the world. According to their structural characteristics, various connectors can be formed by internal high pressure forming at one time, or they can be first formed into profiles by general extrusion methods, and then corrected by internal high pressure forming, and filled with internal pressure and axial force. Press the tube blank into the mold cavity to shape it.
Due to the excellent internal high pressure forming performance and large design freedom, one internal high pressure forming part can replace the workpiece formed by welding several parts, so the distortion and deformation caused by welding are avoided, and it has high dimensional accuracy and mechanical properties. Its main advantages are: reducing quality and saving materials.
2. Precision die-casting technology of aluminum alloy enclosure.
The connecting parts of the aluminum alloy enclosure frame structure are mostly formed by casting, and the casting methods used are mainly semi-solid die casting and other advanced high-precision die casting methods. Semi-solid die casting technology currently has two forming processes: rheological forming process and thixoforming process. The former is to send the liquid metal into a specially designed injection molding machine barrel, apply shearing by a screw device to cool it into a semi-solid slurry, and then perform die-casting. The latter is to feed the solid metal particles or scraps into the screw injection molding machine, and under the conditions of heating and shearing, the metal particles are converted into slurry and then die-casted.
At present, semi-solid metal casting used in domestic and foreign industries mainly refers to thixotropic casting, which is widely used in body frame structures. As a precision forming method, thixocasting has high strength of the workpiece after forming and can realize the one-time forming of complex shapes. It can be used to realize mass production of various non-cutting or very little-cutting parts, and reduce the number of parts.
The aluminum alloy enclosure is made of one-time die-casting molding technology, which is waterproof and explosion-proof. Therefore, when used as an electrical component shell design, there will be no water seepage phenomenon, and the internal components can be well protected.
