Abstract—The need for miniature parts is increasing day by day. This growing demand for micro parts has led to the development of many processes for their production, which can be broadly classified as Microlithography, Micro deposition and Material removal (on micro scale). There are various methods in which micro deposition is being carried out. One of the emerging processes in this category is the electric discharge deposition process for the fabrication of micro sized parts. In this process micro tool in the form of wire is used and its wear is increased intentionally so that the worn out material get deposited due to the applied potential voltage. Experiments were conducted to identify the key of operating parameters and their operating ranges and the effect of voltage, current, duty cycle and pulse on time on the deposited weight, height, and width and tool wear length using the centre rotatable composite design of experiment as statistical tool. After this most significant parameters is analyzed as current, duty cycle and pulse on time. The effects of these parameters are analyzed on the multi layer deposition process using a full factorial design.

Index Terms—Micro deposition, EDM

The authors are with PDPM Indian Institute of Information Technology Design & Manufacturing Jabalpur (e-mail: chellasitara@gmail.com; fax:+91-761-2632524).

Cite: Rahul Gopal, Suryakant Swarankar, Chelladurai H., and KK Soundra Pandian, "Online Monitoring of Electric Discharge Deposition Process," International Journal of Computer and Communication Engineering vol. 1, no. 2, pp. 164-167 , 2012.