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Chipformers reliability in Inconel 625 longitudinal turning

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EN
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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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  • Cracow University of Technology, Production Engineering Institute, Aleja Jana Pawła II 37, 31-864 Cracow, Poland, phone: +48 12 374 32 50
Bibliografia
  • [1] Ezugwu E.O., Wang Z.M., Machado A.R., The machinability of nickel based alloys: a review, Journal of Materials Processing Technology, 86 (1-3), 1-16, 1998.
  • [2] Zębala W., Milling optimization of difficult to machine alloys, Management and Production Engineering Review, 1, 1, 59-70, 2010.
  • [3] INCONEL 625, http://www.matweb.com.
  • [4] HRSA - reference book [in Polish: Superstopy żaroodporne - poradnik, Sandvik Polska Sp. z o.o., 2007.
  • [5] Kundrak J., Varga G., Possibility of reducing environmental load in hard machining, Key Engineering Materials, 496, 205-210, 2012.
  • [6] Słodki B., Physical and technological aspects concerning chip curl and breaking in nickel based superalloys machining [in Polish: Fizyczne i technologiczne aspekty zwijania i łamania wióra w obrobce superstopow na bazie niklu, Seria Mechanika, 408, Wydawnictwo Politechniki Krakowskiej, 2012.
  • [7] Przybylski L., Słodki B., The influence of Local Operating Features on Cutting Parameters in Turning, The International Journal of AdvancedManufacturing Technology, 13, 4, 233-236, 1997.
  • [8] Sandvik-Coromant Turning tools catalogue, 2010.
  • [9] ISCAR, Turning tools catalogue, 2008.
  • [10] Słodki B., Selected sequences of chip breaking process in turning nickel based superalloys, Advances in Manufacturing Science and Technology, 35, 2, 29-36, 2011.
  • [11] Zębala W., Modeling difficult-to-cut materials turning [in Polish: Modelowanie procesu toczenia materiałów trudnoskrawalnych, Czasopismo Techniczne, Wydawnictwo Politechniki Krakowskiej, 2, 135-148, 2011.
  • [12] Jawahir I.S., van Luttervelt C.A., Recent Developments in Chip Control Research and Applications, CIRP Annals, 42/2, 695-685, 1993.
  • [13] Pekelharing A.J., Why and how does chip curl and break, CIRP Annals, 12 (1), 144-147, 1964.
  • [14] Słodki B., Struzikiewicz G., Chip form changes in carbide insert wear process in Inconel 625 longitudinal turning [in Polish: Zmiana postaci wióra w procesie zużycia ostrza z węglikow spiekanych w toczeniu wzdłużnym stopu Inconel 625, Obróbka skrawaniem, nauka a przemysł pod redakcją Wita Grzesika,Wydawnictwo Sutoris, pp. 158-167, Opole 2011.
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Bibliografia
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bwmeta1.element.baztech-3984502c-c8bf-47bd-9b0d-b6a70192e892
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