Pinion Failure Analysis of a Helical Reduction Gearbox in a Kraft Process

Pandey, Deepak; Lim, Hee-Chang

doi:10.3390/app10082935

Cited by 3 publications

(1 citation statement)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Failure analyses of gears have been conducted by many researchers, for instance, pinion [6] and idler gear [7]. Scoring, wear, pitting, plastic flow and teeth breakage/fracture are gear failures caused by design errors, improper installation and operation [8]. When contact between pinion and gear's teeth-asperity occurred because of lubrication failure, scoring happened [9].…”

Section: Introductionmentioning

confidence: 99%

Running-in Analysis of Transmission Gear

Jamari¹,

Ammarullah²,

Afif³

et al. 2021

Tribol. Ind.

View full text Add to dashboard Cite

The automotive industry's impact on development and improvement, reliability and lifetime, of components is significant. Automotive market encourages small and medium enterprises (SMEs) to enter this market, which is for SMEs a challenge to meet specified product quality. In this study, running-in wear analysis of transmission gears is conducted, which is rarely discussed in literature. Based on this study, one can make recommendations to SMEs to improve their product. Examination tests between an original equipment manufacturer (OEM) gear and SMEs gear product have been made. Results showed that mass and chemical composition are same. A clear difference between SMEs and OEM gear was seen from surface roughness and material hardness tests. SMEs gear exhibits a failure mechanism, and OEM gear does not indicate any failure indication during running-in period.

show abstract

Section: Introductionmentioning

confidence: 99%

Running-in Analysis of Transmission Gear

Jamari¹,

Ammarullah²,

Afif³

et al. 2021

Tribol. Ind.

View full text Add to dashboard Cite

show abstract

Experimental Study of Helical Gear Failure in Off-Road 4 × 4 Gearboxes

Husaini,

Haris,

Nurdin

2024

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

Effect of fatigue behaviour on fracture in the 4th gear of a pick-up truck

Janmanee,

Saodaen,

Thanadngarn

et al. 2024

Archives of Materials Science and Engineering

View full text Add to dashboard Cite

This paper aims to investigate the effect of fatigue behaviour on fracture in the 4th gear (helical gear) of a pick-up truck.Fracture on the failed helical gear is characterised through metallographic and fractographic analyses. Mechanical testing and finite element simulation are employed to assess the factors contributing to the gear failure.The microstructure observed in the case layer was martensite, leading to a hard and brittle surface due to carburising. Failure initiated at the crack origins and then propagated to the instant fracture zone in the core of the gear tooth. Multiple crack origins accelerated the development of ratchet marks, attributed to the high intensity of stress exerted on the workpiece and ultimately leading to a substantial final overload zone. Hardness decreased with increasing depth of the gear surface due to the effects of carburising and hardening treatments. Stress was initiated from the contact stress on the gear tooth surface and transformed into bending stress along the central axis of the gear. The contact stresses became critical when the torque surpassed the contact strength of the material.Simulation samples must be experimentally validated to improve the results.Metallographic and fractographic analyses are crucial in elucidating the wear mechanisms in mechanical components. Additionally, finite element analysis can indicate the influence of stress on the mechanical part, providing insights that can effectively guide the limiting transmission power to ensure extended service life.Cost reduction, time for analysis, and finding the root causes of the problem should be conducted to improve the implementation process, leading to high product quality.

show abstract

Pinion Failure Analysis of a Helical Reduction Gearbox in a Kraft Process

Cited by 3 publications

References 26 publications

Running-in Analysis of Transmission Gear

Running-in Analysis of Transmission Gear

Experimental Study of Helical Gear Failure in Off-Road 4 × 4 Gearboxes

Effect of fatigue behaviour on fracture in the 4th gear of a pick-up truck

Contact Info

Product

Resources

About