Papers by Keyword: Non-Traditional Machining

Abstract: In this study, a novel fuzzy behavioral TOPSIS model was proposed. Sensitivity analysis is conducted according to the behavioral TOPSIS model parameter (λ) for the different case studies taken from the literature. The ranking results are slightly different according to different λ values. The results of the study can be used in material and manufacturing method selection problems.

Abstract: This study demonstrates a novel hybrid surface polishing process combining non-traditional electrochemical polishing (ECP) with external artificial ultrasonic vibration. ECP, typical non-contact surface polishing process, has been used to improve surface quality without leaving any mechanical scratch marks formed by previous mechanical processes, which can polish work material by electrochemical dissolution between two electrodes surfaces. In recent paper, ECP using ultrasonic vibration have demonstrated surface improvement. This study verifies improved results than conventional ECP for additional experiments to vibration electrochemical polishing (VECP) using ultrasonic vibration. The localized roughness of work material is measured by atomic force microscopy (AFM) and scanning electron microscopy (SEM) for detailed information on surface. Besides roughness, overall surface quality, material removal rate (MRR), and productivity etc. are compared with conventional ECP.

Abstract: As a new-emerging force of modern manufacturing technology, non-traditional machining plays an important role in cultivating engineering quality, raising innovation ability and innovative consciousness to students. In order to adapt the development of practice teaching of engineering training in higher education, an innovative training mode is explored and implemented to non-traditional machining combined with the actual situation of the Mechanical and Electrical Engineering Training Center of Guilin University of Electronic Technology. The results show that the exploration is feasible completely.

Abstract: To perform several micro-machining on same machine tool, a micro machining equipment was researched and developed. The equipment adopts some high and new technologies. It is equipped with high precision XYZ stage, a spindle with high rotation accuracy and variable rotation speed, a granite worktable, a block electro discharge grinding unit for machining micro rod, a ultrasonic vibration unit for workpiece vibrating, a high frequency pulse power supply for micro-ECM and a video microscopic system with high enlargement factor. The equipment can perform micro electro discharge machining (EDM), micro electrochemical machining (ECM), micro ultrasonic machining (USM) as well as their combination. It can also machine 3D microstructures. A series of experiments were carried out. Using micro-EDM, micro rods with the diameter of less than 5µm were ground on block electrode, micro holes and 3D microstructures were obtained. Shaped holes were machined by using combination of micro-EDM and micro-USM. A micro hole with the diameter of 100µm was machined via micro-ECM.