ABSTRACT
Different surface quality improvement approaches have been developed in response to the enormous need for high-quality precise features in a variety of growing fields, including the medicinal, aerospace, and electronic sectors. Exploring lubrication-assisted machining becomes a crucial field of research since tool wear and surface quality have a significant impact on the tribological performance and functionality of machined parts. The use of cutting fluid to lower the cutting force, tool wear, surface roughness, and cutting temperature has a significant impact on how well the metal cutting process performs. Unfortunately, the primary cause of health and environmental issues is cutting fluids. Dry machining is considered an appropriate technique to minimise the ecological impact and worker's health issues related to lubricant usage. However, dry machining creates numerous issues like severe tool wear, poor surface quality, excessive machining temperature and chip removal. Flood condition is not a recommended method for metal cutting since lubricants are expensive and have serious negative effects on the environment and human health. Researchers have looked at minimum quantity lubrication to try and lessen the negative impacts of both dry and flood lubrication. The impact of MQL during machining processes including turning, milling, drilling, and grinding is mostly covered in this chapter. For various machining operations, the effect of MQL on cutting force, tool wear, cutting temperature, surface quality, tool life, and chip formation was also addressed in detail.
