Operating behavior and performance of oil-lubricated plastic gears

Illenberger, C. M.; Tobie, Thomas; Stahl, Karsten

doi:10.1007/s10010-021-00513-7

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…Additionally, reinforcement such as glass/carbon fiber in gear materials has also been observed in gear performance investigation. [15][16][17] Whereas, in additive manufacturing process, due to limitation of reinforcement not many varieties of material have been used in polymer gears for its experimental investigation. PA618, PLA, ABS and nano clay ABS are only few materials which have been used so far for producing gears using additive manufacturing through FDM (Fused Deposition Modelling) method for gear pair performance investigation.…”

Section: Types Of Manufacturingmentioning

confidence: 99%

Investigation on the effect of strain rate on standard involute and asymmetric polymer gears using the newly design fixture for single tooth testing method

Jain,

Patil

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Effect of strain rate on the single tooth strength of nylon-based gear has been investigated using a newly designed testing fixture. An adjustable single tooth testing fixture has been designed and developed for the purposed of single tooth loading test which is able to accommodate the gear with varying thickness. Injection molded nylon-6 and SLS (selective laser sintering) printed glass filled nylon-6 standard involute and asymmetric gear tooth have been investigated for their single tooth loading test at three different strain rates of 0.0003, 0.003, and 0.01 per sec. Single tooth strength for both injection and printed gear is found to increase with the increase in strain rate. Injection molded single gear tooth undergone bending failure whereas SLS printed gear tooth shows fracture failure. Resistance to single tooth deflection at higher strain rate has drastically increased for injection molded standard involute (IS) gear tooth by 23% whereas, asymmetric gear tooth IA20 followed by IA34 shows slight increment. SLS printed asymmetric gear tooth PAG20/34 exhibits maximum single tooth strength among all three types of printed gears at all the three strain rates. At higher strain rate of 0.01 per sec, single tooth strength dominates by tooth profile geometry whereas, at lower strain rate of 0.0003 per sec, it dominates by tooth profile geometry and microstructure.

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Section: Types Of Manufacturingmentioning

confidence: 99%

Investigation on the effect of strain rate on standard involute and asymmetric polymer gears using the newly design fixture for single tooth testing method

Jain,

Patil

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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show abstract

“…It can be said that CFPEEK gear shows good root load carrying capacity with poor tooth flank load carrying capacity. 157 Using numerical method, it has been found that coating material with large value of Young’s modulus and coating layer thickness decreases tooth tip deflection which further reduce wear process. 158 However, the friction coefficient found unaffected at a value above 5 mm of radii of relative curvature under dry film lubrication when tested for acetal gear pair.…”

Section: Classification Of Review Of Polymer Gearingmentioning

confidence: 99%

A review on materials and performance characteristics of polymer gears

Jain

Patil

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this research work an extensive review on use of advance materials and performance of polymer gears. Further, literature on polymer gears has been divided into four divisions based on the type of gear material, performance characteristic, modifications, and manufacturing techniques. Materials like polyamide and acetal and their composites are focused due to their huge application quotient. Use of in total six grades that is, PA6, PA66, PA12, PA46, PA618, and PA645 as gear material have been identified. Use of glass and carbon fiber reinforcements in PA gears with varying percentage in a range of 20%–35% and 15%–30%, respectively have been observed. Failure and performance characteristics such as wear, thermal, fatigue, load, transmission, and operational have been illustrated and described in detail. Research studies to improve thermal performance of plastic gears by modifying gear tooth and its profile has also been discussed along with their effects. Application of advance manufacturing technique such as 3D printed additive manufacturing in producing plastic gears is also talked over in this article. This compiled review work aims to assist researchers in selection of plastic gear material and to explore various factors and parameters affecting the failure behavior and performance of plastic gears.

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Application of high performance polymer gears in light urban electric vehicle powertrains

Reitschuster

Illenberger

Tobie

et al. 2022

Forsch Ingenieurwes

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The application of high-performance polymer gears in power transmissions is increasingly gaining focus in current research and industrial practice. The well-known advantages of thermoplastics such as cost-efficient production and low density compete with moderate strength and limited operating temperatures. However, the properties of thermoplastics can be used effectively to address the challenges of more efficient powertrains with higher power density, reduced fuel consumption, and reduced manufacturing costs. This work focuses on the implementation of high-performance polymer gears in the powertrain of a light electric vehicle. For demonstration purposes, a series transmission of a prototype of a light electric vehicle is modified and investigated considering the specific properties of polymers and steel materials. Due to its material properties, the high-performance polymer VESTAKEEP® 5000 G was used for the investigations. Different constructional modifications to the serial transmission as well as modifications of the micro geometry of the gears were applied to improve the load distribution and provide sufficient load carrying capacity to the polymer gears. Assuming usual driving cycles and lifetime, the calculations according to VDI 2736 [1] and RIKOR [2] indicate a sufficient load-carrying capacity for the polymer gears used inside. Under the given assumptions, the use of polymer gears in a powertrain of light electric vehicles appears to be possible.

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Operating behavior and performance of oil-lubricated plastic gears

Cited by 8 publications

References 7 publications

Investigation on the effect of strain rate on standard involute and asymmetric polymer gears using the newly design fixture for single tooth testing method

Investigation on the effect of strain rate on standard involute and asymmetric polymer gears using the newly design fixture for single tooth testing method

A review on materials and performance characteristics of polymer gears

Application of high performance polymer gears in light urban electric vehicle powertrains

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