Comparative analysis and experimental exploration of the milling process in the machining of Inconel 825 material under MQL

ABSTRACT

With the flood cooling technique approach, it is impossible to fulfill the concerned environmental regulations and increase productivity while machining material that is infamously tough to cut. To address the conscious environmental regulation in the metal cutting industry, an effect must be made to reduce the industry process impact on environmental pollution along with manufacturing process optimization. Therefore, an eco-friendly MQL technique was investigated associated with machinability characteristics and compared results with dry condition while end milling of Inconel 825 material. The results revealed that MQL significantly reduced cutting temperature (CT) and surface roughness (R_a) to maximum levels of 70% and 43%, respectively. Further, optimum conditions were found using Taguchi method under MQL cooling. Additionally, using 3D surface plots, the interaction impact of process parameter on “R_a” has been investigated. For end milling Inconel 825 material, the MQL machining method has been proven as the most feasible alternative over dry condition.

KEYWORDS:

• Milling
• machining
• Inconel 825
• minimum quantity lubrication
• chip morphology
• surface roughness
• cutting temperature
• Taguchi
• optimization

Disclosure statement

No potential conflict of interest was reported by the author(s).