IJFANS International Journal of Food and Nutritional Sciences

ISSN PRINT 2319 1775 Online 2320-7876

In End Face Milling, the Effect of Different Cooling and Lubrication Conditions on the Cutting Performance and the Surface Integrity of the Superalloy Inconel 718

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Prof. Suhas Rewatkar, Prof.Gaurav Gohane, Prof.Dharmendra A.Agrawal, Prof.Hemant Baitule, Yadav Jyoti Rakeshkumar

Abstract

Superior thermal and mechanical qualities are shared by the nickel-based superalloy Inconel 718. However, it's a challenging material to machine since it generates a lot of heat during processing. Its cutting performance and surface integrity may be drastically improved with proper cooling and lubrication (CL) techniques. Different methods of cutting Inconel 718 are compared in this work, including dry cutting (DC), flood cutting (FC), cryogenic cutting (CC), and cryogenic minimal quantity lubrication cutting (CMQLC). Measurements include cutting forces, temperature, tool wear, chip size, roughness angle (Ra), microstructure, and residual stress (RS). The results show that processing is improved with the addition of CL. Compared to DC, CMQLC yields an average temperature that is 55.47% cooler. With CMQLC, the area of tool chipping is reduced by 25%, and the surface Ra is lowered by 32.05%, making it the lowest of the four methods. In terms of RS, while the TRS went up by 7.9%, the MCRS went up by 3.9%, and the influence depth in the subsurface went up by 10.2%. Additionally, a more desirable RS state may be attained under machining conditions with a high mechanical thermal ratio. Mild environmental contamination, favoured cutting performance, and excellent workpiece surface integrity are all shown by the CMQLC.

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