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This article shows how a rational approach to the selection of cutting fluids can be made from an appreciation of the principle factors and mechanisms involved. Attention is also drawn to the benefits of using the same grade of oil for machine lubricant and cutting fluid where this is practicable.
For a number of years there have been some machine shops in which a waterbase fluid has been used to the exclusion of all other aqueous cutting fluids. The advantages of such a practice are most attractive nevertheless, immense quantities of soluble oils continue to be sold. Why is this It is...
As in other fields of lubrication and processing, the incorporation of various chemical additive materials to straight mineral oils can reinforce intrinsic desirable properties or impart new properties necessary to the high performance expected of today's metalworking lubricants and coolants.
The demands on cutting fluids and compounds will no doubt continue to increase and the hard pressed production engineer may find some alleviation of his problem by using molybdenum disulphide.
The properties of conventional coolants are limited by the natural characteristics of their hydrocarbon bases which can only be varied slightly by complex formulation, whereas a single synthetic coolant can be formulated to cover a wide range of machining operations.
This article is mainly concerned with swarf produced by machine tools using neat cutting oils. If the factory has no means of extracting the oil from this, anything from 40 to 80 galton swarf will be carried away on the scrap dealer's lorry. But it can be a messy and uneconomic proposition if no...
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