In order to measure thickness and Study on growth behaviors of oxide layers on grinding wheel surface in ELID, measurement system accuracy is verificated with laser and eddy current sensor for simulation measurement of oxide layers, Growth behaviour of oxide layers were measured in pre-dressing process, the results indicate inward growth speed of oxide layer is greater than outward growth speed along the radius of grinding wheel in the early , oxide layers keep linear growth and growth speed is the fastest; In the late ,inward growth speed of oxide layer slows, outward growth speed is slightly faster, but overall oxide layer growth slows down.
In order to measure thickness and Study on growth behaviors of oxide layers on grinding wheel surface in ELID, the measurement system consisted of a laser sensor and an eddy current sensor was constructed to do a preliminary research on oxide layer replaced by rust. Through the comparison of the values of the thickness obtained by measurement system and the electron microscope of high precision, in this paper, the accuracy of the measurement result and the feasibility of the system ware verified.
With the development of computer network technology, Networked manufacturing will be used widely in modern CNC engraving system. In this study, on the basis of analyzing the problems and network modes of traditional CNC engraving system, the control system of network-based CNC engraving machine was presented. For meeting the needs of real-time control and remote monitoring, PROFIBUS-DP fieldbus and Ethernet are introduced into the system. And hardware structure is given. Moreover, as to the realization of system software, the idea and method of modular programmed have been adopted to ensure the security and reliablity of the control system running.
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