ADVANCED MANUFACTURING TECHNIQUES: DRY MACHINING
ABSTRACT
In manufacturing processes, machining is one of the most extensively performed operations. In high speed machining process, it is a myth that cutting fluid increases tool life and improves surfaces finish, but it is not totally true. Manufacturing companies all over the world are currently examining the question whether metalworking fluids are really needed in machining processes and if so, to what extent? Just two decades ago, cutting fluids were cheap and accounted for less than 3% of most machining processes. So few machine shops ever gave them much thought. Times have changed dramatically since then, though: Cutting fluids are costing shops today an estimated several billion dollars per year and up to 15% of their production costs. Now, machine shops worry about their fluids all the time and also face problem of their safe disposal.
The purpose of this paper is to identify the detrimental issues involving metalworking fluid’s uses and its drawbacks, offer dry machining as the solution for the removal of metalworking fluids from machining processes and determine if these solutions are viable, cost effective alternatives. Also stress has been given on tool materials, tool coating and using air as cutting fluid.
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