Enhancement of Fatigue Strength on SAE 1541 Steel Link Plate with  Slip Ball Burnishing Technique

K. Krishnakumar; A. Arockia Selvakumar

doi:10.14429/dsj.70.14704

K. Krishnakumar School of Mechanical and Building Sciences, VIT University, Chennai - 600 127 https://orcid.org/0000-0002-3381-2203
A. Arockia Selvakumar School of Mechanical and Building Sciences, VIT University, Chennai - 600 127 https://orcid.org/0000-0002-7810-6994

DOI: https://doi.org/10.14429/dsj.70.14704

Keywords: Fatigue test, Slip ball burnishing, Compressive residual stress, Micro hardness, Surface roughness

Abstract

This research paper describes a technique for the enhancement of the fatigue strength of the chain link plate in the drive system of a military armoured vehicle. SAE 1541 steel link plates of chains were subjected to cyclical tensile stress due to repeated loading and un-loading conditions. The crack was getting originated from the pitch hole and growth perpendicular to the chain pulling load, due to fatigue mechanism. In general plate holes are manufactured using the conventional process. An additional novel technique called the slip ball burnishing (SBB) method is applied for improving the hole properties. The improvement is made by producing local plastic deformation, improving surface finish and compressive residual stress throughout in the pierced hole. Both the conventional process (CP) and the SBB technique have been evaluated by optical, profile, surface roughness and micro harness tests. Experimental fatigue test validations were done in both chain samples using the Johnson-Goodman method. SBB chains passed 3x106 cycles at the load of 17.61 kN and CP chains passed 3x106 cycles at the load of 13.92 kN. The conclusion was that SBB made a significant improvement of 26.51 per cent of fatigue strength compared to CP.

References

Saito, Ryoichi; Noda, Nao-Aki; Sano, Yoshikazu; Song, Jian; Minami, Takeru; Birou, Yuuka ; Miyagi, Arata & Huang, Yinsa. Fatigue strength analysis and fatigue damage evaluation of roller chain. Metals, 2018, 8(10), 1-15. https://doi.org/10.3390/met8100847

Pantazopoulos, G.; Vazdirvanidis, A.; Toulfatzis, A. & Rikos, A. Fatigue failure of steel links operating as chain components in a heavy duty draw bench. Eng. Failure Anal., 2009, 16(7), 2440-2449. https://doi.org/10.1016/j.engfailanal.2009.04.005

Azevedo, C.R.F.; Magarotto, D. & Tschiptschin, A.P. Embrittlement of case hardened steel chain link. Eng. Failure Anal., 2009, 16(7), 2311-2317. https://doi.org/10.1016/j.engfailanal.2009.03.010

Marcelo, A.L.; Tokimatsu, R.C. & Ferreira, I. Hydrogen embrittlement in an AISI 1045 steel component of the sugarcane industry. Eng. Failure Anal., 2009, 16, 468-474. https://doi.org/10.1016/j.engfailanal.2008.06.014

Krishnakumar, K. & Selvakumar, A. Arockia . A review of failure analysis found in industrial roller chains. Int. J. Chem. Tech. Res., 2015, 8(12), 598-603.

Noguchi, Shoji; Yoshiba, Hideaki; Nakayama, Satoshi & Kanada, Tohru . Evaluation of wear between pin and bush in roller chain. J. Adv. Mech. Design, Sys., Manufacturing, 2009, 3(4), 355-365. https://doi.org/10.1299/jamdsm.3.355

Wankhade, Vishal & Sharma, Suman. A study on drag conveyor chain: How to prevent corrective maintenance in drag conveyors due to tensile loading. Indian J. Res., 2015, 4(4), 4-6.

Murakawa, Masao; Suzuki, Manabu; Shionome, Tomio; Komuro, Fumitoshi; Harai, Akira; Matsumoto, Akira & Koga, Nobuhiro. Precision piercing and blanking of ultrahigh-strength steel sheets. Procedia Engineering, 2014, 81, 1114-1120. https://doi.org/10.1016/j.proeng.2014.10.219

El-Tayeb, N.S.M.; Low, K.O. & Brevern, P.V. Enhancement of surface quality and tribological properties using ball burnishing process. Mach. Sci. Technol., 2008, 12(2), 234-248. https://doi.org/10.1080/10910340802067536

Rodríguez, A.; Lacalle, L.N. Lopez de; Celaya, A.; Lamikiz, A. & Albizuri, J. Surface improvement of shafts by the deep ball-burnishing technique. Surface Coatings Technol., 2012, 206(11), 2817-2824. https://doi.org/10.1016/j.surfcoat.2011.11.045

Amdouni, Hatem; Bouzaiene, Hassen; Montagne, Alex; Gorp, Adrien Van; Coorevits, Thierry; Nasri, Mustapha & Iost, Alain. Experimental study of a six new ball-burnishing strategies effects on the Al-alloy flat surfaces integrity enhancement. Int. J. Adv. Manufacturing Technol., 2017, 90(5), 2271-2282. https://doi.org/10.1007/s00170-016-9529-9

Atapek, S. Haken. Development of a new armor steel and its ballistic performance. Def. Sci. J., 2013, 63(3), 271-277. https://doi.org/10.14429/dsj.63.1341

Hanumanna, D, Narayanan, S. & Krishnamurthy, S. Prediction of fatigue life of gear subjected to varying loads. Def. Sci. J., 1998, 48(3), 277-285. https://doi.org/10.14429/dsj.48.3948