Abstract
Abstract The paper deals with longitudinal turning of Inconel 625 as a representative of difficult - to - cut materials. Two chipformers were tested on especially prepared research stand in the range of tool manufactures recommendations concerning depth of cut and feed. Chip form creation process was observed by means of high speed camera recording system. Then, the chips were evaluated and classified into three groups. The results are presented in the form of diagrams and tables. They show poor effectiveness of chipformers acting in small values of feed. A few examples of chip breaking sequences are presented. An algorithm leading to correct cutting data selection has been proposed. The algorithm uses a simulation procedure to verify chip groove filling in off line procedure.
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