Process-Chain Simulation for Prediction of the Distortion of Case-Hardened Gear Blanks

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Date

2012

Authors

Simsir, C.
Şimşir, Caner
Hunkel, M.
Luetjens, J.
Rentsch, R.

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Publisher

Wiley-v C H verlag Gmbh

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Organizational Unit
Manufacturing Engineering
(2003)
Opened in 2003 with the aim to graduate experts in the field of machine-production, our Department is among the firsts in our country to offer education in English. The Manufacturing Engineering program focuses on the manufacturing technologies that shape materials from raw materials to final products by means of analytical, experimental and numerical modeling methods. First Manufacturing Engineering Program to be engineered by Müdek, our department aims to graduate creative and innovative Manufacturing Engineers that are knowledgeable in the current technology, and are able to use production resources in an effective and sustainable way that never disregards environmental facts. As the first Department to implement the Cooperative Education Program at Atılım University in coordination with institutions from the industry, the Manufacturing Engineering offers a practice-oriented approach in education with its laboratory infrastructure and research opportunities. The curriculum at our department is supported by current engineering software, and catered to creating engineers equipped to meet the needs of the production industry.

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Abstract

In this study, a process-chain simulation model is presented for the prediction of distortion of low-pressure gas carburised SAE 5120 (EN 20MnCr5) steel gear blanks. For this purpose, the evolution of the banded microstructure stemming from the continuous casting process was traced by computer simulations of subsequent shape rolling, forging and machining steps. Then, the simulated local orientation angles of the deformed banded microstructure are transferred to heat treatment simulation module as an input for the recently developed material model that exploits the Anisotropic Transformation Strain (ATS) concept to reproduce the dishing behaviour which cannot be reproduced by former models. The results indicate that the suggested procedure provides quite good predictions of the dishing directions and dishing-free cutting strategy, whereas; the dishing magnitude is predicted fairly reasonably considering large scatters in the experiments.

Description

Simsir, Caner/0009-0006-7871-4232; Hunkel, Martin/0000-0003-0547-2552; Simsir, Caner/0000-0001-9520-4695

Keywords

Gear, Low-Pressure Gas Carburising, Process-chain Simulation, Anisotropic Transformation Strain, Zahnrad, Verzug, Niederdruck-Gasaufkohlung, Prozesskettensimulation, Anisotrope Umwandlungsdehnungen

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Citation

14

WoS Q

Q4

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Source

Volume

43

Issue

1-2

Start Page

163

End Page

170

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