Current status and developing trend of process planning and Job Shop scheduling

Process planning and Job Shop scheduling in product design and manufacturing process are two important steps to link product design and manufacturing, the main task of process planning and Job Shop scheduling as well as the association relationship between the two was introduced. The technique development of Computer Aided Process Planning (CAPP) was presented, the research methods for CAPP were summarized and the major issues were identified. The current researches on Job Shop scheduling were summarized from the manipulation approaches of static scheduling and dynamic scheduling. Meanwhile, the main problem of separated process planning and scheduling was analyzed, and the necessity of integrating the two was pointed out. On this basis, the models for Integrated Process Planning and Scheduling (IPPS) were classified and summarized from the interface-oriented integration and function-oriented integration; the researches on the optimization implementation approaches for static and dynamic IPPS were reviewed and analyzed. Based on the above summarization and analysis, the future research trends for process planning, Job Shop scheduling and IPPS were presented.