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Characterization and prediction of chip formation dynamics in machining austenitic stainless steel through supply of a high-pressure coolant

  • Y. Seid AhmedEmail author
  • J. M. Paiva
  • S. C. Veldhuis
ORIGINAL ARTICLE
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Abstract

Use of a high-pressure coolant supply (HPC) can lead to a considerable improvement in machining performance and process stability during the cutting of difficult materials such as stainless steels. Due to the high pressure of the coolant jet, a hydraulic wedge was formed at the tool–chip interface and thus reduced tool–chip contact length and friction behavior. Moreover, the cutting stability can be enhanced as a result of efficient chip breakability. The goal of this work is to evaluate how chip morphology is influenced by three thin jets of pressurized coolant directed into the tool–chip interface during machining of AISI 304 austenitic stainless steel and compare the resulting performance of the tool with dry and conventional coolant conditions. Furthermore, this research evaluates the influence of tool wear on the chip forming mechanism during the turning process. An analysis of the chip generated under machining emphasizes the hypothesis that variations in the cutting tool wear directly affect the chip shape and type of chip segmentation. Finally, a theoretical model was developed to predict the chip upcurl radius under HPC machining. This model is based on shear plane and structural mechanical theories which evaluate plastic strain and the bending moments along the length of the curled chip. The chip upcurl radius values from the developed theoretical model were found to be in good agreement with those measured in the machining tests.

Keywords

Chip morphology High-pressure coolant supply Stainless steel machining Theoretical model 

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Notes

Acknowledgments

This research was supported by Natural Sciences and Engineering Research Council of Canada (NSERC) under the CANRIMT Strategic Research Network Grant NETGP 479639-15.

References

  1. 1.
    Xavior MA (2012) Evaluating the machinability of AISI 304 stainless steel using alumina inserts. J Achiev Mater Manuf Eng 55:841–847Google Scholar
  2. 2.
    Gariani S, Shyha I, Inam F, Huo D (2017) Evaluation of a novel controlled cutting fluid impinging supply system when machining titanium alloys. Appl Sc 7:560Google Scholar
  3. 3.
    Rahman M, Senthil Kumar A, Choudhury MR (2000) Identification of effective zones for high pressure coolant in milling. CIRP Ann Manuf Technol 49:47–52Google Scholar
  4. 4.
    Mia M, Dhar NR (2018) Effects of duplex jets high-pressure coolant on machining temperature and machinability of Ti-6Al-4V superalloy. J Mater Process Technol 252:688–696Google Scholar
  5. 5.
    Liu E, Han R, Tan G, Li Z (2006) Analysis of chip breaking prediction in cutting aluminum alloys. Mater Sci Forum 532:213–216Google Scholar
  6. 6.
    Kaminski J, Alvelid B (2000) Temperature reduction in the cutting zone in water-jet assisted turning. J Mater Process Technol 106:68–73Google Scholar
  7. 7.
    Kubala Z (1989) Metal machining with high- pressure water-jet cooling assistance—a new possibility. J Eng Ind 111:7–12Google Scholar
  8. 8.
    Courbon C, Sajn V, Kramar D, Rech J, Kosel F, Kopac J (2011) Investigation of machining performance in high pressure jet assisted turning of Inconel 718: an experimental study. J Mater Process Technol 211:1834–1851Google Scholar
  9. 9.
    Palanisamy S, Townsend D, Scherrer M, Andrews R, Dargusch MS (2009) High pressure coolant application in milling titanium. Mater Sci Forum 618:89–92Google Scholar
  10. 10.
    Machado AR, Wallbank J, Pashby IR, Ezugwu EO (1998) Tool performance and chip control when machining Ti6A14V and inconel 901 using high pressure coolant supply. Mach Sci Technol 2:1–12Google Scholar
  11. 11.
    Guidance UT (2005) An analysis of strain in chip breaking using slip-line field theory with adhesion friction at chip / tool. J Mater Process Technol 170(1):509–515Google Scholar
  12. 12.
    Joshi SS, Ramakrishnan N, Ramakrishnan P (1999) Analysis of chip breaking during orthogonal machining of Al/SiCp composites. J Mater Process Technol 88(1):90–96Google Scholar
  13. 13.
    Henriksen Ek (1954) Chip breaker dtudies I: design and performance of ground chip breakers, Engineering Reprint Series Reprint Number 12 The University of Missouri Bulletin, MissouriGoogle Scholar
  14. 14.
    Okushima K, Minato K (1959) On the behaviour of chip in steel cutting. Bulletin JSME 2(5):58–64Google Scholar
  15. 15.
    Sandvik Coromant (2017) Turning tools, SwitzerlandGoogle Scholar
  16. 16.
    Koyee RD, Schmauder S, Heisel U, Eisseler R (2015) Numerical modeling and optimization of machining duplex stainless steels. Prod Manuf Res 3:36–83Google Scholar
  17. 17.
    Panda A, Duplák J, Vasilko K (2012) Analysis of cutting tools durability compared with standard ISO 3685. Int J Comput Theory Eng 4(4):621–624Google Scholar
  18. 18.
    Shaw M (2005) Metal cutting principles, 2nd edn. Oxford Unversity Press, New YorkGoogle Scholar
  19. 19.
    ISO (2000) ISO 5436-1:2000 (en): Geometrical product specifications (GPS)—surface texture: profile method, Measurement standards–part1, Geneva, SwitzerlandGoogle Scholar
  20. 20.
    Shivpuri R, Hua J, Mittal P, Srivastava AK, Lahoti GD (2002) Microstructure-mechanics interactions in modeling chip segmentation during titanium machining. CIRP Ann 51(1):71–74Google Scholar
  21. 21.
    Mia M, Dhar NR (2015) Effect of high pressure coolant jet on cutting temperature, tool wear and surface finish in turning hardened (Hrc 48) steel. J Mech Eng 45(1):1–16Google Scholar
  22. 22.
    Abukhshim NA, Mativenga PT, Sheikh MA (2004) An investigation of the tool-chip contact length and wear in high-speed turning of EN19 steel. Proc Inst Mech Eng B J Eng Manuf 218(8):889–903Google Scholar
  23. 23.
    Wan ZP, Zhu YE, Liu HW, Tang Y (2012) Microstructure evolution of adiabatic shear bands and mechanisms of saw-tooth chip formation in machining Ti6Al4V. Mater Sci Eng A 531(1):155–163Google Scholar
  24. 24.
    Habak M, Lou Lebrun J (2011) An experimental study of the effect of high-pressure water jet assisted turning (HPWJAT) on the surface integrity. Int J Mach Tools Manuf 51(9):661–669Google Scholar
  25. 25.
    Haddag B, Makich H, Nouari M, Dhers J (2015) Characterization and modelling of the rough turning process of large-scale parts: tribological behavior and tool wear analyses. Procedia CIRP 31(1):293–298Google Scholar
  26. 26.
    Bi XF, Sutter G, List G, Liu YX (2009) Influence of chip curl on tool-chip contact length in high speed machining. Mater Sci Forum 626(1):71–74Google Scholar
  27. 27.
    Molinari A, Musquar C, Sutter G (2002) Adiabatic shear banding in high speed machining of Ti-6Al-4V: experiments and modeling. Int J Plast 18(1):443–459zbMATHGoogle Scholar
  28. 28.
    Miguèlez MH, Soldani X, Molinari A (2013) Analysis of adiabatic shear banding in orthogonal cutting of Ti alloy. Int J Mech Sci 75(1):212–222Google Scholar
  29. 29.
    Barry J, Byrne G (2002) The mechanisms of chip formation in machining hardened steels. J Manuf Sci Eng 124(3):528–545Google Scholar
  30. 30.
    Sima M, Özel T (2010) Modified material constitutive models for serrated chip formation simulations and experimental validation in machining of titanium alloy Ti-6Al-4V. Int J Mach Tools Manuf 50(11):943–960Google Scholar
  31. 31.
    Da Silva RB, MacHado AR, Ezugwu EO, Bonney J, Sales WF (2013) Tool life and wear mechanisms in high speed machining of Ti-6Al-4V alloy with PCD tools under various coolant pressures. J Mater Process Technol 213(8):1459–1464Google Scholar
  32. 32.
    Gajrani KK, Sankar MR (2017) ScienceDirect state of the art on micro to nano textured cutting tools. Mater Today Proc 4(2):3776–3785Google Scholar
  33. 33.
    Khan MA (2015) Effect of high pressure coolant jets in turning Ti-6al-4v alloy with specialized designed nozzle. Dissertation, Bangladesh University of Engineering & Technology DhakaGoogle Scholar
  34. 34.
    Jawahir IS (1990) On the controllability of chip breaking cycles and modes of chip breaking in metal machining. CIRP Ann Manuf Technol 39(1):47–51Google Scholar
  35. 35.
    Wang B, Liu Z (2016) Evaluation on fracture locus of serrated chip generation with stress triaxiality in high speed machining of Ti6Al4V. Mater Des 98(1):68–78Google Scholar
  36. 36.
    Skrzypek J, Ganczarski A (1999) Modeling of material damage and failure of structures. Theory and Applications, LondonzbMATHGoogle Scholar
  37. 37.
    Nakayama K, Arai M, Kanda T (2011) Machining characteristics of hard materials. Mach Hard Mater 37(1):1–21Google Scholar
  38. 38.
    Zhou L (2011) Machining chip-breaking prediction with grooved inserts in steel turning, dissertation, Worcester Polytechnic InstituteGoogle Scholar
  39. 39.
    Buchkremer S, Schoop J (2016) A mechanics-based predictive model for chip breaking in metal machining and its validation. CIRP Ann Manuf Technol 65(1):69–72Google Scholar
  40. 40.
    Devotta A, Beno T, Löf R, Espes E (2015) Quantitative characterization of chip morphology using computed tomography in orthogonal turning process. Procedia CIRP 33(1):299–304Google Scholar
  41. 41.
    Merchant ME (1945) Mechanics of the metal cutting process. II. Plasticity conditions in orthogonal cutting. J Appl Phys 16(1):318–324Google Scholar
  42. 42.
    Astakhov VP, Shvets SV, Osman MOM (1997) Chip structure classification based on mechanics of its formation. J Mater Process Technol 71(2):247–257Google Scholar
  43. 43.
    Buchkremer S, Klocke F, Lung D (2015) Finite-element-analysis of the relationship between chip geometry and stress triaxiality distribution in the chip breakage location of metal cutting operations. Simul Model Pract Theory 55(1):10–26Google Scholar
  44. 44.
    Buchkremer S, Klocke F, Lung D (2014) Analytical study on the relationship between chip geometry and equivalent strain distribution on the free surface of chips in metal cutting. Int J Mech Sci 85:88–103Google Scholar
  45. 45.
    Nomani J, Pramanik A, Hilditch T, Littlefair G (2017) Stagnation zone during the turning of Duplex SAF 2205 stainless steels alloy. Mater Manuf Process 32(13):1486–1489Google Scholar
  46. 46.
    Klocke F, Sangermann H, Krämer A, Lung D (2011) Influence of a high-pressure lubricoolant supply on thermo-mechanical tool load and tool wear behavior in the turning of aerospace materials. Proc Inst Mech Eng B J Eng Manuf 225(1):52–61Google Scholar
  47. 47.
    Çolak O (2012) Investigation on machining performance of Inconel 718 under high pressure cooling conditions. Stroj Vestn-J Mech Eng 58(11):683–690Google Scholar
  48. 48.
    Kamruzzaman M, Dhar NR (2008) The effect of applying high-pressure coolant (HPC) jet in machining of 42crmo4 steel by uncoated carbide inserts. J Mech Eng 39(2):71–77Google Scholar
  49. 49.
    Ezugwu EO, Bonney J (2004) Effect of high-pressure coolant supply when machining nickel-base, Inconel 718, alloy with coated carbide tools. J Mater Process Technol 153(1):1045–1050Google Scholar
  50. 50.
    Zhou L, Rong Y, Li Z, Yang JA (2003) Development of web-based machining chip breaking prediction systems. Int J Adv Manuf Technol 22(5):336–343Google Scholar
  51. 51.
    Zhang YZ, Peklenik J (1980) Chip curl, chip breaking and chip control of the difficult-to-cut materials. CIRP Ann Manuf Technol 29(1):79–83Google Scholar

Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.McMaster Manufacturing Research Institute (MMRI), Department of Mechanical EngineeringMcMaster UniversityHamiltonCanada
  2. 2.Department of Mechanical and Materials ScienceCatholic University of Santa CatarinaJoinvilleBrazil

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