Springback analysis in bilayer material bending

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Exponential increase in the use of auto vehicles, and thus the fuel consumption, which relates to the air pollution, vehicle industry are in a strict environmental regulation from government. Due to which the innovation related to lightweighting is not only an option anymore but became a mandatory necessity to decrease the fuel consumption. To achieve this target, industry has been looking in fabricating components from high strength to ultra-high strength steels. With the usage of these material the lightweight was achieved by reducing a gage thickness. However due to their high strength property often challenges occurred are higher machine tonnage requirement, sudden fracture, geometric defect, etc. The geometric defect comes from elastic recovery of a material, which is also known as a springback. Springback is commonly known as a manufacturing defect due to the geometric error in the part, which would not be able to fit in the assembly without secondary operation or compensation in the forming process. Due to these many challenges, other research route involved is composite material, where light materials can be used with high strength material to reduce the overall vehicle weight. This generally includes, tailor welded blanks, multi-layer material, mechanical joining of dissimilar material, etc. Due to the substantial use of dissimilar materials, these parts are also called as hybrid components. It was noted that the part weight decreases with the use of hybrid components without compromising the integrity and safety. In this paper, a springback analysis was performed considering bilayer metal. For this two dissimilar materials aluminum and composite was considered as bonded material. This material was then bent in a channel forming set-up. The bilayer springback was compared in different condition like aluminum layer on punch side and then on die side. These results were then compared with the baseline springback of only aluminum thin and thick layer. It was found that the layer, which sees the punch side, matters due to the differences in elastic properties for both material and thus it directly influences the springback.

Original languageEnglish (US)
Title of host publicationAdvanced Manufacturing
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume2
ISBN (Electronic)9780791858356
DOIs
StatePublished - Jan 1 2017
EventASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017 - Tampa, United States
Duration: Nov 3 2017Nov 9 2017

Other

OtherASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017
CountryUnited States
CityTampa
Period11/3/1711/9/17

Fingerprint

Dissimilar materials
Aluminum
Fuel consumption
Defects
Thickness gages
Environmental regulations
Composite materials
Air pollution
High strength steel
Joining
Industry
Innovation
Recovery
Metals

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Nikhare, C. P. (2017). Springback analysis in bilayer material bending. In Advanced Manufacturing (Vol. 2). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2017-70549
Nikhare, Chetan P. / Springback analysis in bilayer material bending. Advanced Manufacturing. Vol. 2 American Society of Mechanical Engineers (ASME), 2017.
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Nikhare, CP 2017, Springback analysis in bilayer material bending. in Advanced Manufacturing. vol. 2, American Society of Mechanical Engineers (ASME), ASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017, Tampa, United States, 11/3/17. https://doi.org/10.1115/IMECE2017-70549

Springback analysis in bilayer material bending. / Nikhare, Chetan P.

Advanced Manufacturing. Vol. 2 American Society of Mechanical Engineers (ASME), 2017.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Nikhare CP. Springback analysis in bilayer material bending. In Advanced Manufacturing. Vol. 2. American Society of Mechanical Engineers (ASME). 2017 https://doi.org/10.1115/IMECE2017-70549