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Prozessintegrierte Verzugskompensation an großen Wälzlagerringen
Author(s) -
Stark P.,
Fritsching U.,
Hunkel M.,
Hansmann D.
Publication year - 2012
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201100888
Subject(s) - nozzle , quenching (fluorescence) , distortion (music) , jet (fluid) , materials science , mechanics , compensation (psychology) , heat transfer , bearing (navigation) , cooling curve , composite material , mechanical engineering , optics , metallurgy , physics , engineering , optoelectronics , psychology , amplifier , cmos , psychoanalysis , astronomy , fluorescence
Bearing rings (d ⪈ 1000 mm, material: 42CrMo4) may be quenched directly after the hot rolling process with the use of adapted jet fields. Specific asymmetric cooling conditions for controlled heat treatment processes shall be utilized for distortion compensation. The feasibility of liquid quenching techniques (water jet cooling a) in water b) in ambient air and c) spray cooling) is investigated experimentally concerning the achievable cooling curves of the ring specimen and the resulting heat transfer coefficients on its surface. The influence of the distribution of the quenching intensities around the ring's circumference on the achievable distortion compensation behaviour is investigated both experimentally in a jet nozzle field and through numerical simulations.