A kind of aluminum alloy shell die-casting mold design

Through the analysis of the structure and formability of the shell parts, focusing on the main aspects of the mold design for detailed analysis and research; analysis and design of the mold parting surface position, the structure of the pouring and overflow system and the launching mechanism, the use of the side of the thick wall of the structure of the multi-point gating form; the mold core, the cavity to do a specific structural design, the use of the cavity in the fixed mold, core in the movable mold of the ordinary two-plate structure; and the core and cavity part made into movable inserts, easy to repair and replacement, fully meet the mold design requirements. The core and cavity are made into movable inserts, which are easy to repair and replace. The structure of the mold is simple and practical, which fully meets the design requirements of the mold.

Aluminum alloy material has lightweight characteristics, with the continuous development of casting technology, aluminum alloy material die casting process and mold design development rapidly. The design of die-casting mold is an important link of die-casting forming, for the whole process of cost, efficiency and finished product accuracy has an important impact, therefore, many scholars at home and abroad on die-casting mold research and analysis. MaDongWei through experimental comparative analysis found that the main factors affecting the size of aluminum alloy samples is the change of residual stress and solid phase crystallization; ShiBaoLiang to the automobile industry used in the structural parts of the typical parts of the relevant analysis, focusing on the study of high-pressure under the aluminum alloy castings of the performance characteristics; Jin K C using two geometrical shape design of thin plate die casting die, and put forward a new type of numerical simulation based on the overflow system , conducted an actual vacuum die casting test channel partially free of reflux, and fabricated a high-quality sample using the proposed optimized die design; Péter Szalva, by comparing the high peripheral fatigue behavior of high-pressure and vacuum-assisted die casting and describing how casting defects affect fatigue failure, vacuum-assisted die casting significantly reduces the pore size and volume and reduces the occurrence of oxidized flakes,. thereby increasing the number of failure cycles. The above scholars' research are for the microstructure of the product after die-casting forming and the structural properties of aluminum alloy casting analysis research, but for the die-casting mold structural design and simplification has not yet been mentioned, therefore, the direction of this research is for a kind of aluminum alloy shell die-casting mold design, this design is effective in avoiding the cold segregation, slagging, bubbles, loosening, heat sink does not form the defects produced by the die-casting process.