Navegação Engenharias por Autor "Zoch, Hans-Werner"
Resultados 1-6 de 6
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Austenitic grain size prediction in hot forging of a 20MnCr5 steel by numerical simulation using the JMAK model for industrial applications
Ivaniski, Thiago Marques; Epp, Jérémy; Zoch, Hans-Werner; Rocha, Alexandre da Silva (2019) [Artigo de periódico]Yield strength and toughness in steels are directly associated with hot forging processes, especially by controlling austenitic grain size and cooling conditions. The phenomenological JMAK model in macroscale has been ... -
Bending distortion analysis of a steel shaft manufacturing chain from cold drawing to grinding
Dias, Vinicius Waechter; Rocha, Alexandre da Silva; Zottis, Juliana; Dong, Juan; Epp, Jérémy; Zoch, Hans-Werner (2017) [Artigo de periódico]Shafts are usually manufactured from bars that are cold drawn, cut machined, induction hardened, straightened, and finally ground. The main distortion is characterized by bending that appears after induction hardening and ... -
Experimental analysis of residual stresses in pre-straightened SAE 1045 steel
Soares, Carla Adriana Theis; Rocha, Alexandre da Silva; Epp, Jérémy; Zoch, Hans-Werner (2017) [Artigo de periódico]This paper aims at analyzing the effects of the roller pre-straightening of wire-rods on residual stress distributions in SAE 1045 steel bars. The combined drawing process is used in industrial production of bars in order ... -
Investigation of the influence factors on distortion in induction-hardened steel shafts manufactured from cold-drawn rod
Dong, Juan; Epp, Jérémy; Rocha, Alexandre da Silva; Nunes, Rafael Menezes; Zoch, Hans-Werner (2016) [Artigo de periódico]In this study, the distortion of steel shafts was investigated before and after induction hardening. Several essential influencing factors in the manufacturing process chain regarding cold drawing, cutting method, notches ... -
Microestrutura e propriedades de desgaste do aço bainítico de resfriamento contínuo DIN 18MnCrSiMo6-4 nitretado a plasma em diferentes temperaturas
Dalcin, Rafael Luciano; Oliveira, Leonardo Fonseca; Rocha, Alexandre da Silva; Malfatti, Célia de Fraga; Hidalgo, Gelsa Edith Navarro; Epp, Jérémy; Zoch, Hans-Werner (2020) [Artigo de periódico]Os novos aços bainíticos de resfriamento contínuo (CCBS) são uma excelente alternativa quando se requer elevada dureza, tenacidade e resistência à fadiga. Contudo, estima-se que a taxa de desgaste dos CCBS seja insuficiente ... -
Surface processing to improve the fatigue strength of bainitic steels : an overview
Dalcin, Rafael Luciano; Hatwig, Rodrigo Afonso; Oliveira, Leonardo Fonseca; Zottis, Juliana; Rocha, Alexandre da Silva; Epp, Jérémy; Zoch, Hans-Werner (2019) [Artigo de periódico]Currently, one of the major challenges for automotive industries is to reduce the weight and energy consumption of vehicles by using stronger and advanced low-cost materials. Conventional solutions using quenched and ...