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Einflussgrößen des Verzuges beim Schmieden von Zahnradrohlingen
Author(s) -
Rentsch H.
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.201100890
Subject(s) - forging , non circular gear , distortion (music) , mechanical engineering , automotive industry , finite element method , engineering , material flow , automotive engineering , hardening (computing) , spiral bevel gear , structural engineering , materials science , composite material , electrical engineering , cmos , layer (electronics) , biology , aerospace engineering , amplifier , ecology
The gear wheel manufacture is one of the key technologies for power train systems and in automotive industry. These complex high performance parts require stable processes and narrow tolerances in order to control the manufacturing costs. Experimental analyses show that the material flow in disk‐like gear wheel blanks made of 20MnCr5 can vary significantly. This is of significance as a correlation between the dishing after case‐hardening of the gear wheel blanks and the material flow was found. Besides experimental findings, finite element (FE) analyses of the influence of process parameters and perturbations on the distortion of forged gear wheel blanks have been carried out. A temperature gradient over the height of the workpiece is assumed to be largely responsible for the observed material flow variations and the related dishing of the forged gear wheel blanks.