In view of the problems of high energy consumption, high pollution, large machining allowance and low production efficiency in the traditional casting industry, under the background of putting forward the concept of green and sustainable manufacturing for the manufacturing industry and the urgency of accelerating the transformation and upgrading of the traditional casting industry, the low-carbon modeling of the Moldless sand casting process is carried out, taking into account the resource consumption Energy consumption and environmental factors. Combined with particle swarm optimization algorithm, the optimization design scheme of composite mold is proposed. Taking the process design of a motor end cover casting and its composite mold as the research object, the divided mold modules are formed by traditional pattern modeling, sand mold NC milling and sand mold 3D printing. The optimized composite mold process design scheme can reduce the resource and energy consumption in the casting process, reduce the carbon emission in the casting process, and has great advantages in production efficiency, energy efficiency ratio and carbon efficiency. The specific work is as follows:
1.The forming process of Moldless sand casting is analyzed, and the process characteristics, mold characteristics and influencing factors of resource demand of Moldless sand casting are analyzed and discussed. On this basis, the division rules of composite mold modules are put forward, and the influencing factors of resource demand of Moldless sand casting are classified and summarized.
2.Combined with the process characteristics of Moldless sand casting and the analysis of the influencing factors of resource demand, the low-carbon modeling of the process of Moldless sand casting is carried out from the aspects of resource consumption, energy consumption and carbon emission.
3.The low-carbon process optimization design scheme of composite mold based on particle swarm optimization algorithm is proposed, and the optimal mold process parameters are verified in a casting example.
4.Combined with casting examples and low-carbon evaluation model, the casting results of single casting technology and composite forming method are calculated, and the calculation results of various low-carbon indexes are compared, analyzed and summarized.