| Abstrakt: |
Because of the characteristics of hardened steel mold with high hardness and surface characteristics of the complex,the hardened steel mold in the milling process is easy to produce flutter. The flutter will affect the workpiece surface quality and restrict milling efficiency,therefore,the dynamic analysis and stability prediction of hardened steel mould in the milling process have become more and more important. The hardened steel mould milling stability is mainly related to dynamic characteristics of the processing system and dynamic milling process,therefore,the article summarized the research on three aspects of hardened steel mold,the dynamic characteristics of the machining system,the dynamic milling process dynamics modeling and the milling stability analysis. In the aspect of dynamic characteristics of hardened steel mold machining system,hammer mode test,admittance coupling substructure analysis method and the basic principles,practical applications and limitations of analytical method are mainly described. In the aspect of the dynamic milling process dynamics modeling,the dynamic cutting thickness modeling of complex surface of hardened steel mold and the extraction method of tool-workpiece surface contact area are mainly reviewed. In the aspect of milling stability analysis,the practical application of several typical chatter stable domain prediction methods is summarized. At the same time,the article points out the existing problems of milling dynamics modeling and stability study of the complex surface of hardened steel mold. [ABSTRACT FROM AUTHOR] |
