A new method for description of the pitting process on worm wheels propagation

Opalić, Milan; Žeželj, Dragan; Vučković, Krešimir

doi:10.1016/j.wear.2015.01.053

Cited by 7 publications

(2 citation statements)

References 5 publications

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“…The wear behaviour of a material is also affected by the shape and size of the abrasive grit, roughness, attack angle, normal load applied, sliding speed, and fracture toughness of the material as well [20][21][22]. For the DCI with different matrix as shortly reviewed above, the predominant damage phenomena are adhesive wear and surface fatigue [23][24][25][26]. As mentioned above, the wear behaviours have been well studied on the ductile iron with a matrix of ausferrite, pearlite, and ferrite, and all these types of the matrix are relatively soft, compared with the martensitic matrix.…”

Section: Introductionmentioning

confidence: 99%

Effect of tempering temperature on the wear behaviour of martensitic ductile iron

Jiaojiao

Chen

et al. 2023

Materials Science and Technology

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Ductile cast irons (DCIs) with different microstructures have been widely investigated and applied. The present work aims to illustrate the effect of different tempering temperatures (150–600°C) on the wear behaviour of martensitic ductile cast iron. The results indicate that the wear rate increases with tempering temperatures above 300°C. The lowest wear rate is found after tempering at 150–300°C, where the smearing of graphite forms a solid lubricating film and maybe an oxide layer on the wear surfaces during the sliding process. With further increases in the tempering temperature, the main wear mechanism changes from abrasive wear to adhesive wear. It shows that martensitic ductile cast iron can be used as a self-lubricated bearing material in the future.

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Section: Introductionmentioning

confidence: 99%

Effect of tempering temperature on the wear behaviour of martensitic ductile iron

Jiaojiao

Chen

et al. 2023

Materials Science and Technology

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“…The inaccuracy of tools, the machining errors and the assembly errors will cause accelerated intensive wear of the gear wormwheel toothing - Fig. 1 [8,9,10]. The action surface of the wormwheel machining tool needs to be determined based on the surface of the design worm, which will form a worm gear with the wormwheel being machined [7,11].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the wormwheel toothing accuracy

2017

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Original scientific paper The article presents a mathematical model for the determination of the tooth surface of the wormwheel machined by either the tangential or the radial method. Wormwheel machining with a special hob and a modular hob is considered. Different methods of solving the task are presented. This includes also a numerical method that requires the envelope condition to be solved. The described discussion is general in nature. The tool action surface, built based on the worm mating with the wormwheel in the worm gear, may have an arbitrary profile. In the technological gear, made up by the tool and the wormwheel, the rotary motion of the wormwheel was exchanged for its rectilinear motion. The tool positioning errors in the machining process were taken into account. Keywords: envelope method; worm gear; wormwheel Analiza točnosti ozubljenja pužnog kolaIzvorni znanstveni članak U radu se predstavlja matematički model za određivanje površine zubi pužnog kola obrađenog bilo tangencijalnom bilo radijalnom metodom. Razmotrena je obrada pužnog kola specijalnim pužnim glodalom i modularnim pužnim glodalom. Predstavljene su različite metode rješavanja zadatka uključujući i numeričku metodu koja zahtijeva rješenje stanja ovojnice. Opisana rasprava je općenite prirode. Radna površina alata, izrađena na osnovu puža spojenog s pužnim kolom u pužni zupčanik, može biti proizvoljnog profila. U tehnološkom zupčaniku, sastavljenog od alata i pužnog kola, rotacijsko gibanje pužnog kola je zamijenjeno pravocrtnim gibanjem. U obzir su uzete greške pozicioniranja alata u postupku obrade.

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Effects of lubricant on the surface durability of an injection molded polyamide 66 spur gear paired with a steel gear

Bharti

Senthilvelan

2019

Tribology International

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A new method for description of the pitting process on worm wheels propagation

Cited by 7 publications

References 5 publications

Effect of tempering temperature on the wear behaviour of martensitic ductile iron

Effect of tempering temperature on the wear behaviour of martensitic ductile iron

Analysis of the wormwheel toothing accuracy

Effects of lubricant on the surface durability of an injection molded polyamide 66 spur gear paired with a steel gear

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