Anti-adhesive performance of CNT enriched nanofluid lubrication during turning of Aluminum 7075 alloy using textured tools

Abstract This paper presents the effect of surface texturing and CNT enriched nanofluid lubrication on the cutting performance of cemented carbide cutting inserts during the turning of Aluminum 7075 alloy. This alloy is widely used in various industries due to its excellent properties such as high corrosion resistance, high strength to weight ratio, and good formability. Although aluminum alloys have good cutting properties because of their low strength, they adhere between tool and chip on the rake face in machining processes, and this results in the low surface finish of machined components. To solve this problem, the use of textured tools under nanofluid lubrication is proposed in this study. Firstly, different shape of textures was fabricated on the rake face, and effective texture was determined using experimental tests. Then, turning tests were carried out using the selected textured tool under CNT enriched nanofluid lubrication to enhance the cutting performance of the machining process. Results showed that the linear microgrooves perpendicular to chip flow direction have better performance in comparison to other shapes of texture. Our findings revealed that the main cutting force, built-up edge, and surface finish were reduced up to 32%, 37%, and 19% using the selected textured tool under CNT enriched nanofluid lubrication compared to dry turning condition.