Simulation of the surface-layer properties in ultrasonic planing
In the ultrasonic-planing method proposed, torsional oscillations of the tool are used to machine external cylindrical surfaces. Formulas describing the indenter trajectory over the surface of the part are presented. The indenter trajectory and the machining parameters are such that the required microrelief and microprojection configuration may be obtained, depending on the specified surface properties.
Based on the study of SIP,the paper presents the overlay method to implement the mapping between SIP protocol state machine and IN call state model BCSM,and analyses the implementation concretely.The method has resolved the key technology in interworking of Internet and IN.