Papers by Author: Jing Qiang Zhang

Abstract: To meet the requirements of super-high speed vitrified bond of CBN grinding wheel that should be low-melting, high strength and multi-foams, performance of nano-ceramic bond were researched in this paper. Four types of bond which major glass components was R₂O+RO-B₂O₃- -Al₂O₃-SiO₂ have been compounded with pure raw chemical materials. In order to improve the strength of bond, nano-materials were added into formulations of the vitrified bond. And experiments results showed that compared with traditional vitrified bond the new nano-ceramic bond had a significant advantage at its refractoriness, expansion coefficient, surface morphology and bending strength. Especially, the bending strength of 4# nano-ceramic bond had reached to 83.75 MPa and its refractoriness was 790 °C. It proved that 4# nano-ceramic bond was more suitable for super-high speed CBN grinding wheel.

Abstract: This paper analyzes the characteristics of supplier selection base on network manufacturing environment. The requirements of supplier evaluation and selection function of the system were analyzed too. Supplier evaluation and selection of system architecture and workflow was studied oriented networked manufacturing environment. Base on the theoretical study a prototype system was developed and the main function modules were introduced. This paper provides a theoretical and technical reference to develop efficient and practical supplier evaluation and selection system to meet the requirements of networked manufacturing.

Abstract: Computer simulation is an important method to research the grinding mechanism and optimize the grinding process parameters. Especially in recent years as the development of computer calculation speed, the improvement of computer graphics theory and the gradual maturity of artificial intelligence technology, experts and scholars whose research subject related grinding had done a lot of work on grinding simulation. This paper describes the main contents grinding of the grinding simulation research work made in recent years. Include some of the key research results of the present grinding simulation, the major difficulties in grinding simulation and the research trends are summarized in this paper.

Abstract: A grinding simulation system is developed based on the technology of virtual reality. Simulation theory based on virtual reality is introduced and architecture workflow and operation of the system is studied. With the system, simulation of grinding process of all kinds of materials can be done, influence law of grinding wheel parameters (abrasive grain sizes, bond materials, grinding wheel diameter, etc.) and process parameters (grinding speed, workpiece speed, axial feed workpiece materials, etc.) on machining quality of the workpiece can be analyzed, machining quality can be forecasted and optimization of grinding process parameters can be gained.