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Hardening Distortions of Serial Produced Crown Wheels
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- Olofsson, Anders, 1978- (author)
- KTH,Skolan för industriell teknik och management (ITM)
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- Jonsson, Stefan (author)
- KTH,Mekanisk metallografi
- (creator_code:org_t)
- 2017-09-05
- 2017
- English.
- In: Materialwissenschaft und Werkstofftechnik. - : Wiley-VCH Verlagsgesellschaft. - 0933-5137 .- 1521-4052.
- Journal article (other academic/artistic)
Abstract
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- The hardening distortions of serial produced crown wheels are studied with respect to gear runout, inner diameter and back-face tilt. The data analysed originates from a production data base from ordinary production as well as from directed experiments carried out in production, resulting in a large set of data. Strong influences are found for steel plants, position of material in ingots and stacking levels on hardening trays. It could be concluded that rectangular strands have a detrimental effect on gear runout, which, however, can be strongly decreased by disabling the magnetic stirring during casting. Furthermore, the inner diameter after quenching is influenced by the stacking level on the hardening tray when free-hardening or when using a segmented central expander during press quenching. This influence is attributed to variations in hardening temperature. When press quenching using a fixed mandrel, the effect of stacking level disappears. Moreover, it is found that the back-face tilt strongly depends on the position in the ingot as well as on the stacking level on the hardening tray.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Hardening distortions
- crown wheels
- gear runout
- case hardening
- ingot casting
- continuous casting
- Teknisk materialvetenskap
- Materials Science and Engineering
Publication and Content Type
- vet (subject category)
- art (subject category)
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