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The effect of manufacturing method and running-in load on the surface integrity of efficiency tested ground, honed and superfinished gears
Chalmers Univ Technol, Ind & Mat Sci, SE-41296 Gothenburg, Sweden..
Chalmers Univ Technol, Ind & Mat Sci, SE-41296 Gothenburg, Sweden..
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.).
Chalmers Univ Technol, Ind & Mat Sci, SE-41296 Gothenburg, Sweden..
2019 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 131, p. 277-287Article in journal (Refereed) Published
Abstract [en]

This study compares gear surface characteristics generated by grinding, honing and superfinishing of casehardened steel, including the evolution during efficiency testing with two different prior running-in loads (0.9 GPa and 1.7 GPa). The most influential factor was surface roughness. Micro-pitting was associated with surface asperities and hence only seen in ground and honed gears, while being absent for super-finished gears. The micro-pitting was enhanced by running-in load, but only for rough surfaces. Deformation-induced localized microstructure impact was associated with cracks. Residual stresses reached similar levels after efficiency testing. Phosphorous content in the gear surface was connected to surface roughness and running-in load.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD , 2019. Vol. 131, p. 277-287
Keywords [en]
Gears, Finishing processes, Surface integrity, Efficiency testing
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-244085DOI: 10.1016/j.triboint.2018.10.051ISI: 000456766000029Scopus ID: 2-s2.0-85056186214OAI: oai:DiVA.org:kth-244085DiVA, id: diva2:1289915
Note

QC 20190219

Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-03-18Bibliographically approved

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