Application of cutting fluids in machining processes

Abstract

In the last decade a lot has been discussed about the suitability of using cutting fluid in abundance to cool and lubricate machining processes. The use of cutting fluid generally causes economy of tools and it becomes easier to keep tight tolerances and to maintain workpiece surface properties without damages. In the other hand, it brings also some problems, like fluid residuals and human diseases. Because of them some alternatives has been sought to minimise or even avoid the use of cutting fluid in machining operations. Some of these alternatives are dry cutting and cutting with minimum quantity of fluid (MQF). The main goal of this work is to discuss these tendencies. Therefore, topics like kinds and methods of applications of modern cutting fluids and what are new in this area will unavoidably be considered. MQF and dry cutting techniques, their applications and where it is not possible to apply them will also be focused. To exemplify the topics, this work will describe some of the researches been developed in two important Brazilian Universities: State University of Campinas (UNICAMP) and Federal University of Uberlândia (UFU)

A Quality Function Deployment-Based Model for Cutting Fluid Selection

“…Rao and Gandhi [4] developed a methodology to select the most appropriate cutting fluid for a given machining application using digraph and matrix approach. Sales et al [5] discussed about the comparative advantages and disadvantages of using cutting fluids as well as dry cutting operation. Soković and Mijanović [6] analyzed the ecological parameters of cutting fluids and their influence on machinability characteristics of work materials.…”

Tool wear damage caused by abundant emulsion in milling operation of PH stainless steel

“…In order to penetrate in these small spaces, the fluid must have small molecules. According to Childs et al (1988) and Seah et al (1997) the contact pressure between tool and chip is very high what blocks all the possible ways for the fluid penetration in the tool-chip contact region. What occurs in most of cases is and indirect cooling, since the fluid removes heat from the chip surface, from the workpiece and from the tool exposed to the contact with it.…”

Machinability Study of Developed Composite AA6061-ZrO2 and Analysis of Influence of MQL

“…Aluminium metal matrix is one of the important engineering materials that widely replaces conventional materials, super alloys, and ceramics in defence and automotive sectors due to its various superior properties. Conventional materials and ceramics are difficult to machine as they produce a lot of heat, consume a lot of energy, and need huge amounts of lubrication during machining [2]. In aluminium matrix composites, approximately 80-90% of the matrix part is composed of aluminium, which is light weight, corrosion resistant, ductile, and also completely recyclable.…”