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In the machining, process parameters need to be monitored and adjusted automatically, which can improve production quality and reduce machining time. At present, it is mainly concentrated on the study of some algorithms about tool wearing and tool breakage, or theory modeling of interrelated models in the processing machining. The monitoring systems independent of CNC are also investigated to realize...
To meet the need of advanced manufacturing technique, an open computer numerical control (CNC) software package for CNC machining is developed. Module library of the software package was of tree structure with a depth of 5. Terminal nodes of the tree were module units with unambiguous functions. Module units which dealt with real-time tasks were developed adopting real-time dynamical linked library...
The current 5-axis coordinated linear interpolation method results in low-speed, low-accuracy and enormous numerical control (NC) files in sculptured surface machining. An instruction format with AKIMA spline curves suitable for 5-axis coordinated real-time interpolation is presented by making use of the advantages of AKIMA curves to represent spatial curves. Curve through position vectors in the...
A new data fitting algorithm based on ant colony optimization (ACO) and support vector regression (SVR) is proposed. Ant colony algorithm optimizes three parameters of SVR, including penalty parameter C, insensitive loss function epsiv and kernel function sigma. SVR constructs hyperplane in high dimension space and fits the data in non-linear form. Mean square error of fitting result is used as target...
To improve production rates and the economic benefits, process parameters need to be monitored and adjusted automatically in the machining. At present, it is mainly concentrated on the study of the algorithms about tool wearing and tool breakage, and theory modeling of interrelated models in the processing machining. The monitoring systems independent of CNC are also investigated to realize the status...
In this paper, a new wireless charging system for movable telephone is addressed. A pair of contiguous printed-circuit-board windings has different shape and structure respectively, which is adopted as a wireless energy transfer device. The structure and principle of wireless charging system are expounded. The novel concept comes into being the basis for a new generation of universal charging system...
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