Complex Incremental Sheet Forming Using Back Die Support on Aluminium 2024, 5083 and 7075 alloys

Nagarajan Devarajan; Giribaskar Sivaswamy; Rahul  Bhattacharya; David P. Heck; Muhammad Amir

doi:10.1016/j.proeng.2014.10.324

Complex Incremental Sheet Forming Using Back Die Support on Aluminium 2024, 5083 and 7075 alloys

Nagarajan Devarajan, Giribaskar Sivaswamy, Rahul Bhattacharya, David P. Heck, Muhammad Amir

Engineering

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Abstract

The complex prototype forming of an industrial component was investigated on AA2024, 5083 and 7075 sheets using the incremental sheet forming approach. Fracture occurred at the top of crevice and steeper wall angle region for AA2024 and 7075, respectively, whereas no fracture in the AA5083 alloy. Thinning was higher at the steeper wall angle for all the alloys, from both the experimental and finite element analysis. It is speculated that the typical tensile nature of loading and the associated thinning of the material at these regions caused plastic instability in the material thereby creating micro-cracks that resulted in the failure of the component.

Original language	English
Pages (from-to)	2298-2304
Number of pages	7
Journal	Procedia Engineering
Volume	81
Early online date	15 Oct 2014
DOIs	https://doi.org/10.1016/j.proeng.2014.10.324
Publication status	Published - 2014
Event	11th International Conference on Technology of Plasticity, ICTP 2014 - Nagoya Congress Center, Nagoya, Japan Duration: 19 Oct 2015 → 24 Oct 2015

Keywords

incremental sheet forming
aluminium alloys
Nakajima test
forming limit curves
digital image correlation

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10.1016/j.proeng.2014.10.324

Complex incremental sheet forming using back die support on aluminium 2024, 5083 and 7075 alloys
This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial-No Derivs (CC BY-NC-ND 4.0) license, which permits others to distribute this work non-commercially provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc-nd/3.0/
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title = "Complex Incremental Sheet Forming Using Back Die Support on Aluminium 2024, 5083 and 7075 alloys",

abstract = "The complex prototype forming of an industrial component was investigated on AA2024, 5083 and 7075 sheets using the incremental sheet forming approach. Fracture occurred at the top of crevice and steeper wall angle region for AA2024 and 7075, respectively, whereas no fracture in the AA5083 alloy. Thinning was higher at the steeper wall angle for all the alloys, from both the experimental and finite element analysis. It is speculated that the typical tensile nature of loading and the associated thinning of the material at these regions caused plastic instability in the material thereby creating micro-cracks that resulted in the failure of the component.",

keywords = "incremental sheet forming, aluminium alloys, Nakajima test, forming limit curves, digital image correlation",

author = "Nagarajan Devarajan and Giribaskar Sivaswamy and Rahul Bhattacharya and Heck, {David P.} and Muhammad Amir",

year = "2014",

doi = "10.1016/j.proeng.2014.10.324",

language = "English",

volume = "81",

pages = "2298--2304",

journal = "Procedia Engineering",

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T1 - Complex Incremental Sheet Forming Using Back Die Support on Aluminium 2024, 5083 and 7075 alloys

AU - Devarajan, Nagarajan

AU - Sivaswamy, Giribaskar

AU - Bhattacharya, Rahul

AU - Heck, David P.

AU - Amir, Muhammad

PY - 2014

Y1 - 2014

N2 - The complex prototype forming of an industrial component was investigated on AA2024, 5083 and 7075 sheets using the incremental sheet forming approach. Fracture occurred at the top of crevice and steeper wall angle region for AA2024 and 7075, respectively, whereas no fracture in the AA5083 alloy. Thinning was higher at the steeper wall angle for all the alloys, from both the experimental and finite element analysis. It is speculated that the typical tensile nature of loading and the associated thinning of the material at these regions caused plastic instability in the material thereby creating micro-cracks that resulted in the failure of the component.

AB - The complex prototype forming of an industrial component was investigated on AA2024, 5083 and 7075 sheets using the incremental sheet forming approach. Fracture occurred at the top of crevice and steeper wall angle region for AA2024 and 7075, respectively, whereas no fracture in the AA5083 alloy. Thinning was higher at the steeper wall angle for all the alloys, from both the experimental and finite element analysis. It is speculated that the typical tensile nature of loading and the associated thinning of the material at these regions caused plastic instability in the material thereby creating micro-cracks that resulted in the failure of the component.

KW - incremental sheet forming

KW - aluminium alloys

KW - Nakajima test

KW - forming limit curves

KW - digital image correlation

U2 - 10.1016/j.proeng.2014.10.324

DO - 10.1016/j.proeng.2014.10.324

M3 - Article

VL - 81

SP - 2298

EP - 2304

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 11th International Conference on Technology of Plasticity, ICTP 2014

Y2 - 19 October 2015 through 24 October 2015

ER -

Complex Incremental Sheet Forming Using Back Die Support on Aluminium 2024, 5083 and 7075 alloys

Abstract

Keywords

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