Advertisement

The Effect of Immersion Corrosion on the Surface Morphology of a Flank-Locking Precision Locknut

  • C.M. ChenEmail author
  • C.H. Lee
  • D.S. Xu
  • C.Y. Lee
Article
  • 8 Downloads

Abstract

Precision locknuts are widely used in rotary machinery especially the machine tools operating in high speed with high precision. The flank-locking locknut studied in this paper is mainly employed in spindle and ball screw assemblies of machine tools to secure the preloading in the bearings required for better structural stiffness. In service the locknuts often suffer corrosion from the harsh machining environment. The possible effects of corrosion on the surface morphology of locknut, such as flatness and roughness, and its performance were investigated. The locknut was submerged in a 5% NaCl solution following ASTM B895 standard for different durations- 1, 2, and 4 h to speed up the possible corrosion. The treated locknut was then undergone assembling test following ISO 2320 standard. The flatness and roughness on the end face and threads were measured along with microscopic examination. It was found that with increasing duration of corrosion, the surface flatness and roughness became worse. However, the tightening constant of the locknut showed a positive correlation with the increased surface roughness raised by the corrosion treatment.

Keywords

Surface roughness Thread surface roughness Immersion corrosion Assembling test Surface morphology Flank-locking locknut 

Notes

Acknowledgements

The financial support from Ministry of Science and Technology, Taiwan for this study is gratefully acknowledged.

Compliance with Ethical Standards

Conflict of Interest

On behalf of all authors, the corresponding author states that there is no conflict of interest.

References

  1. 1.
    Bickford JH, Nassar SA (1998) Handbook of bolts and bolted joints Marcel Dekker. United States, New YorkCrossRefGoogle Scholar
  2. 2.
    Zhu L, Hong J, Jiang X (2016) On controlling preload and estimating anti-loosening performance in threaded fasteners based on accurate contact modeling. Tribol Int 95:181–191.  https://doi.org/10.1016/j.triboint.2015.11.006 CrossRefGoogle Scholar
  3. 3.
    Mackerle J (2003) Finite element analysis of fastening and joining: a bibliography (1990–2002). Int J Press Vessel Pip 80:253–271.  https://doi.org/10.1016/S0308-0161(03)00030-9 CrossRefGoogle Scholar
  4. 4.
    Zaki AM, Nassar SA, Yang X (2010) Effect of thread and bearing friction coefficients on the self-loosening of preloaded countersunk-head bolts under periodic transverse excitation. J Tribol 132(3):031601.  https://doi.org/10.1115/1.4001621 CrossRefGoogle Scholar
  5. 5.
    Zou Q, Sun TS, Nassar SA, Barber GC, Gumul AK (2006) Effect of lubrication on friction and torque-tension relationship in threaded fasteners. In STLE/ASME International Joint Tribology Conference San Antonio, Texas, USA  https://doi.org/10.1080/10402000601105490
  6. 6.
    Eccles W, Sherrington I, Arnell RD (2010) Frictional changes during repeated tightening of zinc plated threaded fasteners. Tribol Int 43:700–707.  https://doi.org/10.1016/j.triboint.2009.10.010 CrossRefGoogle Scholar
  7. 7.
    Baragetti S, Terranova A, Vimercati M (2009) Friction behaviour evaluation in beryllium–copper threaded connections. Int J Mech Sci 51:790–796.  https://doi.org/10.1016/j.ijmecsci.2009.09.004 CrossRefGoogle Scholar
  8. 8.
    Mokhtar MOA, Younes YK, Mahdy THE, Attia NA (1998) A theoretical and experimental study on the dynamics of sliding bodies with dry conformal contacts. Wear 218:172–178.  https://doi.org/10.1016/S0043-1648(98)00209-9 CrossRefGoogle Scholar
  9. 9.
    Chen CM, Chen CH (2014) Discussion the re-use precision locknut of the machine tools spindle in the vertical assembly characteristics. Adv Mater Res 853:441–446.  https://doi.org/10.4028/www.scientific.net/AMR.853.441 CrossRefGoogle Scholar
  10. 10.
    Croccolo D, Agostinis MD, Vincenzi N (2011) Failure analysis of bolted joints: effect of friction coefficients in torque–preloading relationship. Eng Fail Anal 18:364–373.  https://doi.org/10.1016/j.engfailanal.2010.09.015 CrossRefGoogle Scholar
  11. 11.
    Croccolo D, Agostinis MD, Vincenzi N (2012) Influence of tightening procedures and lubrication conditions on titanium screw joints for lightweight applications. Tribol Int 55:68–76.  https://doi.org/10.1016/j.triboint.2012.05.010 CrossRefGoogle Scholar
  12. 12.
    Yue T, Wahab MA (2017) Roughness Effects on Fretting Fatigue. 6th International Conference on Fracture Fatigue and Wear 843:012056.  https://doi.org/10.1088/1742-6596/843/1/012056
  13. 13.
    Li W, Li DY (2006) Influence of surface morphology on corrosion and electronic behavior. Acta Mater 54:445–452.  https://doi.org/10.1016/j.actamat.2005.09.017 CrossRefGoogle Scholar
  14. 14.
    Alvarez RB, Martin HJ, Horstemeyer MF, Chandler MQ, Williams N, Wang PT, Ruiz A (2010) Corrosion relationships as a function of time and surface roughness on a structural AE44 magnesium alloy. 52:1635–1648.  https://doi.org/10.1016/j.corsci.2010.01.018
  15. 15.
    Nassar SA, Sun TS (2007) Surface roughness effect on the torque-tension relationship in threaded fasteners. Proc Inst Mech Eng Part J-J Eng Tribol 221:95–103.  https://doi.org/10.1243/13506501JET192 CrossRefGoogle Scholar
  16. 16.
    Chen CM, Sun CH (2018) A study of surface characteristics of flank lock type precision locknut under a vertical installation. J Mech 34:47–58.  https://doi.org/10.1017/jmech.2016.15 CrossRefGoogle Scholar
  17. 17.
    Ahn JH, Lee JM, Cheung JH, Kim IT (2016) Clamping force loss of high-strength bolts as a result of bolt head corrosion damage: experimental research a. Eng Fail Anal 59:509–525.  https://doi.org/10.1016/j.engfailanal.2015.08.037 CrossRefGoogle Scholar
  18. 18.
    Kim IT, Lee JM, Huh J, Ahn JH (2016) Tensile behaviors of friction bolt connection with bolt head corrosion damage: experimental research B. Eng Fail Anal 59:526–543.  https://doi.org/10.1016/j.engfailanal.2015.08.038 CrossRefGoogle Scholar
  19. 19.
    Zampieri P, Curtarello A, Maiorana E, Pellegrino C, Rossi ND, Savio G, Concheri G (2017) Influence of corrosion morphology on the fatigue strength of bolted joints. Procedia Structural Integrity 5:409–415.  https://doi.org/10.1016/j.prostr.2017.07.189 CrossRefGoogle Scholar
  20. 20.
    Zampieri P, Curtarello A, Maiorana E, Pellegrino C (2017) Numerical analyses of corroded bolted connections. Procedia Structural Integrity 5:592–599.  https://doi.org/10.1016/j.prostr.2017.07.020 CrossRefGoogle Scholar
  21. 21.
    Zampieri P, Curtarello A, Pellegrino C, Maiorana E (2018) Fatigue strength of corroded bolted connection. Frattura ed Integrità Strutturale 43:90–96.  https://doi.org/10.3221/IGF-ESIS.43.06 Google Scholar
  22. 22.
    Spotts MF (1989) Design of Machine Elements, sixth edn. Prentice-Hall, New JerseyGoogle Scholar
  23. 23.
    Shigley JE, Mischke CR (1995) Mechanical engineering design, 5th edn. McGraw-Hill, New YorkGoogle Scholar
  24. 24.
    Izumi S, Yokoyama T, Iwasaki A, Sakai S (2005) Three-dimensional finite element analysis of tightening and loosening mechanism of threaded fastener. Eng Fail Anal 12:604–615.  https://doi.org/10.1016/j.engfailanal.2004.09.009 CrossRefGoogle Scholar
  25. 25.
    ASTM B895 (2016) Standard Test Methods for Evaluating the Corrosion Resistance of Stainless Steel Powder Metallurgy(PM) parts/Specimens by Immersion in a Sodium Chloride SolutionGoogle Scholar
  26. 26.
    ISO 2320 (2015) Fasteners - Prevailing torque steel nuts - Functional propertiesGoogle Scholar
  27. 27.
    Prabhakaran S, Kulkarni A, Vasanth G, Kalainathan S, Shukla P, Vasudevan VK (2018) Laser shock peening without coating induced residual stress distribution, wettability characteristics and enhanced pitting corrosion resistance of austenitic stainless steel. Appl Surf Sci 428:17–30.  https://doi.org/10.1016/j.apsusc.2017.09.138 CrossRefGoogle Scholar
  28. 28.
    Song Y, Wightman E, Tian Y, Jack K, Li X, Zhong H, Bond PL, Yuan Z, Jiang G (2019) Corrosion of reinforcing steel in concrete sewers. Sci Total Environ 649:739–748.  https://doi.org/10.1016/j.scitotenv.2018.08.362 CrossRefGoogle Scholar
  29. 29.
    Benedetti MD, Loreto G, Matta F, Nanni A (2013) Acoustic emission monitoring of reinforced concrete under accelerated corrosion. J Mater Civ Eng 25(8):1022–1029.  https://doi.org/10.1061/(ASCE)MT.1943-5533.0000647 CrossRefGoogle Scholar
  30. 30.
    Zhang D, Gao S, Niu S, Liu H (2018) A prediction method for load distribution in threaded connections. J Theor Appl Mech 56:157–168.  https://doi.org/10.15632/jtam-pl.56.1.157 CrossRefGoogle Scholar
  31. 31.
    Lee HB, Wuu DS, Lee CY, Lin CS (2011) Synergy between corrosion and wear of electrodeposited Ni-P coating in NaCl solution. Tribol Int 44(12):1603–1609CrossRefGoogle Scholar
  32. 32.
    Maiorana E, Zampieri P, Pellegrino C (2018) Experimental tests on slip factor in friction joints: comparison between European and American standards. Frattura ed Integrità Strutturale 43:205–217.  https://doi.org/10.3221/IGF-ESIS.43.16 Google Scholar

Copyright information

© The Society for Experimental Mechanics, Inc 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNational Chin-Yi University of TechnologyTaichungTaiwan
  2. 2.Graduate Institute of Manufacturing TechnologyNational Taipei University of TechnologyTaipeiTaiwan

Personalised recommendations