• P.M.Gaigole, 2, 3, 4
• Harshvardhan Uttarwar
• Pankaj Saharkar
• Ameya Kawtikwar

Gallons of coolant are wasted every day in machining workshops while carrying out different operations with flooded cooling system. This paper presents an experimental study of near-dry turning on High Carbon High Chromium (D3) Steel using Minimum Quantity Lubrication (MQL) applicator, where a small amount of liquid can be used along with the compressed air as lubricant at too-work interface. Vegetable oil- based cutting fluid was used as a lubricant as it is not harmful and improves working environment. The conventional method of lubrication in which the coolant is used in abundance, proves to be costlier and also more problematic in terms of reusing and wastage of the same. However, minimal fluid application provides several benefits in machining. Machining of hardened alloy steel like High Carbon High Chromium Steel is known to be difficult. Attempt has been made to improve the performance characteristics like Material removal rate (MRR) and surface finish (SF) simultaneously in near dry conditions. The objectives of this study includes improving working conditions, reducing the wastage of cooling liquids while maintaining maximum material removal rate and minimum surface roughness. Speed, feed and depth of cut are taken as process variables. L27 orthogonal array is used for experimentation. Analysis of variance (ANOVA) is performed to determine significant process parameters and their contribution in performance characteristics. Optimal parametric setting is obtained to improve MRR and SF. Confirmation experiments are conducted to validate the predicted performance. Study suggests that this method can effectively be used to improve the performance in near dry condition.

High carbon high chromium steel (HCHCR), Minimum quantity lubrication (MQL), L27 (313) orthogonal array, Analysis of variance (ANOVA)

"Near dry turning on high carbon high chromium steel for improvement of machining performance ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.48-53, May-2019, Available :http://www.jetir.org/papers/JETIRBQ06008.pdf

"Near dry turning on high carbon high chromium steel for improvement of machining performance ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp48-53, May-2019, Available at : http://www.jetir.org/papers/JETIRBQ06008.pdf