Chinese Journal of Mechanical Engineering >

2021 , Vol. 34 >Issue 6: 143 - 143

DOI: https://doi.org/10.1186/s10033-021-00646-4

Original Article

Numerical Modelling of the Powder Metallurgical Manufacturing Chain of High Strength Sintered Gears

  • Ali Rajaei ,
  • Yuanbin Deng ,
  • Oliver Schenk ,
  • Soheil Rooein ,
  • Alexander Bezold ,
  • Christoph Broeckmann
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  • Institute for Materials Applications in Mechanical Engineering (IWM) of RWTH Aachen University, Augustinerbach 4, 52062, Aachen, Germany
Ali Rajaei absolved his master’s study in production technologies (mechanical engineering) at RWTH Aachen University, Germany, in 2013. He is currently the head of the heat treatment simulation group in the Institute for Materials Applications in Mechanical Engineering (IWM) at RWTH Aachen University, Germany. His research interests include the numeric simulation of heat treatment processes on macro- and meso-scales with the objective of understanding the material processes under thermomechanical loads and predicting the microstructure evolutions, residual stresses and properties of the components;
Yuanbin Deng received his master’s degree in materials engineering at RWTH Aachen University, Germany, in 2015 and works on simulation of powder metallurgical manufacturing processes in the Institute for Materials Applications in Mechanical Engineering (IWM) at RWTH Aachen University, Germany. He is currently the head of the Process Simulation group in the Powder Technology department of IWM. His research interests centre around the macroscopic modelling and simulation of sintering and hot isostatic pressing process, geometry optimization for near net shape manufacturing;
Oliver Schenk received his master’s degree in mechanical engineering at Wuppertal University, Germany in 2020 and works on simulation of powder metallurgical manufacturing processes in the Institute for Materials Applications in Mechanical Engineering (IWM) at RWTH Aachen University, Germany. His research interests include the numerical simulation of sintering processes on the mesoscale as well as the macroscale;
Soheil Rooein received his master of science degree in Materials Science and Simulation at the ICAMS Department of Ruhr-University Bochum (RUB) in 2019. The focus of his research during master studies was material modelling, micromechanics and RVE generation. Currently, he is working as a research assistant at the Institute for Materials Applications in Mechanical Engineering (IWM) of RWTH Aachen University, Germany. As a member of the heat treatment simulation group, his research interests center around the numerical modelling of heat treatment processes, prediction of residual stresses and estimation of effective properties based on microstructure modelling;
Alexander Bezold received his diploma certificate in Material Science at University of Erlangen-Nuremberg, Germany, in 1999. He is currently the deputy head the Institute for Materials Applications in Mechanical Engineering (IWM) at RWTH Aachen University, Germany;
Christoph Broeckmann worked with the Institute of Materials Science at Bochum until 2000 after finishing his studies in Mechanical Engineering at Ruhr-University Bochum, Germany, in 1990. He got his PhD in 1994 on a thesis on the fracture of carbide rich steels. As senior scientist he established a research group on creep related problems at Bochum University. In 2000 Christoph Broeckmann got his lecture qualification (habilitation) based on a work on creep of particle reinforced materials. In 2000 he moved to the machine factory Köppern GmbH &Co. KG in Hattingen where he first was responsible for material and design related research and development. Since 2003 he became managing director of “Köppern Entwicklungs GmbH” a subsidiary dedicated to the development, production and delivery of large, powder metallurgically produced wear parts. He joined RWTH Aachen University as a professor in 2008. Since 2009 he is head of the Institute for Materials Application in Mechanical Engineering

收稿日期: 2020-10-13

  修回日期: 2021-06-10

  网络出版日期: 2022-04-03

基金资助

Supported by the German Research Foundation DFG (Project-ID:390621612) within the Cluster of Excellence Inter-net of Production (IoP).

收起

Numerical Modelling of the Powder Metallurgical Manufacturing Chain of High Strength Sintered Gears

  • Ali Rajaei ,
  • Yuanbin Deng ,
  • Oliver Schenk ,
  • Soheil Rooein ,
  • Alexander Bezold ,
  • Christoph Broeckmann
Expand
  • Institute for Materials Applications in Mechanical Engineering (IWM) of RWTH Aachen University, Augustinerbach 4, 52062, Aachen, Germany

Received date: 2020-10-13

  Revised date: 2021-06-10

  Online published: 2022-04-03

Supported by

Supported by the German Research Foundation DFG (Project-ID:390621612) within the Cluster of Excellence Inter-net of Production (IoP).

Fold

摘要

This paper presents a digital model for the powder metallurgical (PM) production chain of high-performance sintered gears based on an integrated computational materials engineering (ICME) platform. Discrete and finite element methods (DEM and FEM) were combined to describe the macroscopic material response to the thermomechanical loads and process conditions during the entire production process. The microstructural evolution during the sintering process was predicted on the meso-scale using a Monte-Carlo Model. The effective elastic properties were determined by a homogenization method based on modelling a representative volume element (RVE). The results were subsequently used for the FE modelling of the heat treatment process. Through the development of multi-scale models, it was possible obtain characteristics of the microstructural features. The predicted hardness and residual stress distributions allowed the calculation of the tooth root load bearing capacity of the heat-treated sintered gears.

关键词： ICME; Process chain; Powder metallurgy; Multiscale modelling and simulation; Digital model; Sintered gear

本文引用格式

Ali Rajaei , Yuanbin Deng , Oliver Schenk , Soheil Rooein , Alexander Bezold , Christoph Broeckmann . Numerical Modelling of the Powder Metallurgical Manufacturing Chain of High Strength Sintered Gears[J]. Chinese Journal of Mechanical Engineering, 2021 , 34(6) : 143 -143 . DOI: 10.1186/s10033-021-00646-4

Abstract

This paper presents a digital model for the powder metallurgical (PM) production chain of high-performance sintered gears based on an integrated computational materials engineering (ICME) platform. Discrete and finite element methods (DEM and FEM) were combined to describe the macroscopic material response to the thermomechanical loads and process conditions during the entire production process. The microstructural evolution during the sintering process was predicted on the meso-scale using a Monte-Carlo Model. The effective elastic properties were determined by a homogenization method based on modelling a representative volume element (RVE). The results were subsequently used for the FE modelling of the heat treatment process. Through the development of multi-scale models, it was possible obtain characteristics of the microstructural features. The predicted hardness and residual stress distributions allowed the calculation of the tooth root load bearing capacity of the heat-treated sintered gears.

Key words： ICME; Process chain; Powder metallurgy; Multiscale modelling and simulation; Digital model; Sintered gear

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