Papers by Author: B. Liu

Abstract: A Micro WEDM (Micro Wire Electrical Discharge Machining) CNC system is presented in this paper. Its hardware platform adopted PC with movement control card. For Micro WEDM system is a typical multitasking and real-time system, the CNC software adopted multithread and module structure to perform the parallel tasks and real-time tasks. It also adopted fuzzy control algorithm to control the feeding speed and acceleration. Practical proved that the CNC system is not only low cost and easy to development, but also satisfied the need of Micro WEDM.

Abstract: In the light of project management, concurrent engineering and agile manufacturing, in relation to the characteristics of the concurrence of developing and batch manufacturing, this text studies the hierarchical information technology of the production management system based on project driving. The operation flow of project-driven hierarchical information system of production management has been designed and implemented. The soft architecture and operating model have been proposed. The coordinating and controlling model based on workflow, queuing theory, and the capability balancing method are established.