Fabricating low-cost equipment for the metal cutting industry based on the CDIO approach.

Abstract

Manufacturing low-cost equipment for training in technical disciplines in general and the metal-cutting industry, in particular, is an essential task of training institutions and schools in the context of funding sources to purchase teaching equipment. We have built a low-cost electrochemical grinder using a Diamond grinding wheel that includes an electrochemical solution water tank, solution pump, voltage transformer, body, tabletop, grinding dock, and a motor bearing the grinding wheel. The part to be sharpened is attached to the grinding dock, the length of the part is from 110mm - 140mm, and the width is 20 x 20mm. During the grinding process, the device is controlled manually and grinding is performed at voltage levels of 0V; 3V; 6V; 9V; 12V, the quality of the part surface after grinding is checked for roughness using a Japanese SJ - 201- Mitutoyo meter, and the microstructure is taken with a KIM450 measuring microscope of ARCS, Taiwan to assessment, comparison. Through the experimental results, it can be confirmed that self-made equipment is very useful for use in companies and businesses. Especially classes and laboratories to improve experimental skills and creativity according to CDIO (Conceive-Design-Implement-Operate) approach from Perception, Design, Implementation, and Operation