Multi-objective optimization of die geometry in ingot forging

Peter Christiansen; Paulo A.F. Martins; Niels Bay; Jesper Henri Hattel

doi:10.1016/j.proeng.2014.10.350

Multi-objective optimization of die geometry in ingot forging

Peter Christiansen, Paulo A.F. Martins, Niels Bay, Jesper Henri Hattel

University of Lisbon

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Abstract

The soundness of an ingot after hot forging with different V-shaped lower dies is evaluated using finite element simulations.Two different modelling approaches that make use of uncoupled ductile damage and coupled ductile damage based on porousplasticity are employed. It is shown that the two approaches provide somewhat different results. A simple quantification schemeis suggested for ranking the overall performance of the different geometries of the V-shaped lower dies. Results show that alower die angle in the range 90°-120° is capable of ensuring the best results.

Original language	English
Journal	Procedia Engineering
Volume	81
Pages (from-to)	2457–2462
ISSN	1877-7058
DOIs	https://doi.org/10.1016/j.proeng.2014.10.350
Publication status	Published - 2014
Event	11th International Conference on Technology of Plasticity - Nagoya Congress Center, Nagoya, Japan Duration: 19 Oct 2014 → 24 Oct 2014 Conference number: 11

Conference

Conference	11th International Conference on Technology of Plasticity
Number	11
Location	Nagoya Congress Center
Country/Territory	Japan
City	Nagoya
Period	19/10/2014 → 24/10/2014

Bibliographical note

Keywords

Ingot forging
V-shaped die
FEM simulation
Porous plasticity
Ductile damage

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@inproceedings{5e21aeb7b1294821840ebff6dc5e3202,

title = "Multi-objective optimization of die geometry in ingot forging",

abstract = "The soundness of an ingot after hot forging with different V-shaped lower dies is evaluated using finite element simulations.Two different modelling approaches that make use of uncoupled ductile damage and coupled ductile damage based on porousplasticity are employed. It is shown that the two approaches provide somewhat different results. A simple quantification schemeis suggested for ranking the overall performance of the different geometries of the V-shaped lower dies. Results show that alower die angle in the range 90°-120° is capable of ensuring the best results.",

keywords = "Ingot forging, V-shaped die, FEM simulation, Porous plasticity, Ductile damage",

author = "Peter Christiansen and Martins, {Paulo A.F.} and Niels Bay and Hattel, {Jesper Henri}",

note = "{\textcopyright} 2014 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license; 11th International Conference on Technology of Plasticity, ICTP 2014 ; Conference date: 19-10-2014 Through 24-10-2014",

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doi = "10.1016/j.proeng.2014.10.350",

language = "English",

volume = "81",

pages = "2457–2462",

journal = "Procedia Engineering",

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T1 - Multi-objective optimization of die geometry in ingot forging

AU - Christiansen, Peter

AU - Martins, Paulo A.F.

AU - Bay, Niels

AU - Hattel, Jesper Henri

N1 - Conference code: 11

PY - 2014

Y1 - 2014

N2 - The soundness of an ingot after hot forging with different V-shaped lower dies is evaluated using finite element simulations.Two different modelling approaches that make use of uncoupled ductile damage and coupled ductile damage based on porousplasticity are employed. It is shown that the two approaches provide somewhat different results. A simple quantification schemeis suggested for ranking the overall performance of the different geometries of the V-shaped lower dies. Results show that alower die angle in the range 90°-120° is capable of ensuring the best results.

AB - The soundness of an ingot after hot forging with different V-shaped lower dies is evaluated using finite element simulations.Two different modelling approaches that make use of uncoupled ductile damage and coupled ductile damage based on porousplasticity are employed. It is shown that the two approaches provide somewhat different results. A simple quantification schemeis suggested for ranking the overall performance of the different geometries of the V-shaped lower dies. Results show that alower die angle in the range 90°-120° is capable of ensuring the best results.

KW - Ingot forging

KW - V-shaped die

KW - FEM simulation

KW - Porous plasticity

KW - Ductile damage

U2 - 10.1016/j.proeng.2014.10.350

DO - 10.1016/j.proeng.2014.10.350

M3 - Conference article

SN - 1877-7058

VL - 81

SP - 2457

EP - 2462

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 11th International Conference on Technology of Plasticity

Y2 - 19 October 2014 through 24 October 2014

ER -

Multi-objective optimization of die geometry in ingot forging

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Keywords

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