Manufacturing Technology Today

B. D. Bachchhav ¹, G. S. Lathkar ², H. Bagchi ³

Affiliations
1 Dept of Production Engg, Sinhgad College of Engineering, Pune, IN
2 MGM's College of Engineering, Nanded, IN
3 Dept of Production Engg, Sinhgad College of Engineering, Pune, IN

Abstract

Performance based rating of mineral based oils used for deep drawing operation assume a lot of significance. The synergistic effect of different concentrations of sulfur and ester in base oil was evaluated for extreme pressure and anit-wear following ASTM D2783 and ASTM D4172 standards. A total of six lubricating blends were formulated and compared their performance with base oil. Tests were conducted on DUCOM TR-30L four ball tester and wear scar diameter were measured on optical microscope. Compatibility of additives has been discussed on the basis of various parameters like wear scar diameter (WSD), weld load (WL), and load wear index (LWI) which could act as indicators for performance rating.

Keywords

Anti-Wear, Extreme Pressure Additives, Weld Load, Load Wear Index.

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B. D. Bachchhav ¹, S. B. Zope ², L. G. Navale ³

Affiliations
1 Dept. of Production Engg., Sinhgad College of Engg., Pune, IN
2 Dept. of Production Engg., P.I.E.T's College of Engg., Pune, IN
3 MES's College of Engg., Pune, IN

Abstract

Electrochemical discharge machining (ECDM) has a great potential for machining of non-conductive materials like glass as compared with different existing non-conventional machining methods. The present research paper includes the experimental studies on Rotary Electrochemical Discharge Machining (RECDM) on soda-lime glass for analysis of the effect of machining parameters like applied voltage, electrolyte concentration, tool rotation, current ON-TIME, and duty ratio. Aqueous NaOH solution with varying concentration is used as an electrolyte and pulsed D.C. power supply is applied for small hole drilling operation of glass work-piece. A generalized equation for MRR has been derived using various statistical techniques and tried to find out the optimum values of process parameters by ROVOP method. The present work also include the Scanning Electron Microscope (SEM) study for topographical characteristics of machined surface of soda-lime glass machined by RECDM process that will provide further insight into the fundamental mechanism of this process.

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