Evaluation of Canola Based Cutting Fluid with Extreme Pressure Additive in Turning AISI 1040 Steel

Coolants are used during machining for variety of reasons such as improving tool life, reducing workpiece thermal deformation and surface roughness. Conventional cutting fluids are non-biodegradable which results in environmental pollution and danger to human health, hence there is a growing demand for biodegradable material thus opening an avenue for vegetable oils as an alternative to conventional cutting fluids. In this context, the present work focuses on environmental friendly cutting fluids such as vegetable oil based cutting fluids (VBCFs). The objective of present work is to determine the influence of canola based cutting fluid with Sulphur based extreme pressure (EP) additive on machining performance. Forces, cutting tool temperature and surface roughness are measured during turning of AISI 1040 steel with CNMG120408 NC3220 coated carbide tool. Machining performance of canola based cutting fluid with different proportions of EP additive in its mixture is analysed.