| Complexity is one of the trademarks of modern machining processes. In this way, discontinuous cutting is attracting the interest of researchers. This paper presents a review on discontinuous cutting identifying the main topics related with this special kind of operation. Constant knocking between the tool and the workpiece and thermal cycles that have to face the workpiece make needed to analyse specifically discontinuous cutting, being tool failure and the selection of tool materials critical issues to deal with. Besides, thermal effects in discontinuous cutting have been studying with two different approaches: direct temperature measurement and temperature prediction by using mainly analytical and numerical models. Another strategy is the use of cutting fluids that have been a conventional strategy to diminish the negative influence of thermal effects. However, the need to get more environmentally friendly manufacturing processes is encouraging the use of new cooling/lubricating strategies such as, among others, dry machining, MQL system or cryogenic refrigeration. |
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