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Experimental Investigation of the Influence of Machining Parameters on Chip Geometry for Enhanced Cleanability

Abstract

When a part is manufactured, different processing steps can introduce contaminants to the workpiece. One common form of contamination is the chips produced by machining, which often lodge in the crevices and pathways of the workpiece causing problems for both the accuracy of subsequent machining operations, and the usability of the part. To avoid such problems, it is important to both optimize the type of chip produced so it can be most easily removed from the workpiece, and to minimize the number of chips that remain. By varying process parameters such as feed, speed, depth of cut, and lubrication, some insight is gained as to how these parameters affect chip geometry and size. The results for drilling were mostly inconclusive, while the results for milling provided an important first step towards optimizing the chip form.

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