Study of Burrs in Milling of Marine Grade AISI 316 Stainless Steel with Minimum Quantity Lubrication

Abstract

Due to the excellent properties of AISI 316, the demand for creating a product built with this material is also growing, such as in the oil and gas sector for floating oil rigs and refinery piping. Conventionally, milling AISI 316 utilizes cutting fluids to reduce high-temperature generation linked to higher cutting speed, feed rate, and depth of cut. However, cutting fluids can impose several problems to the environment, health, and cost of production. The purpose of this study is to perform quantitative experimental research on the effectiveness of minimal quantity lubrication in milling AISI 316. This experiment used spindle speeds of 500, 1000, and 1500 rpm, feed rates of 360, 660, and 860 mm/min, depths of cut of 0.1, 0.2 and 0.4 mm, and flow rates of 100 and 200 ml/h for minimum quantity lubrication (MQL). The formation of burr height is considered the investigation's response. The burr height was measured using a surface profilometer, and the optimum condition for achieving the lowest burr height were 500 rpm, 360 mm/min, 0.1 mm, and flood conditions for spindle speed, feed rate, depth of cut, and flow rate, respectively, with a value of 43.429 μm.