Prediction of formability and effects of process parameters on the adhesively bonded composite metallic sheets

The study investigates the deep drawing process for bimetallic sheets formed by bonding dissimilar metals (AA1100 aluminium alloy and C36000 brass) with epoxy-based adhesive. Experimental exploration of process parameters, including blank diameter, stacking sequence, lubrication, and strain rate, wa...

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Bibliographic Details
Published inJournal of adhesion science and technology Vol. 38; no. 9; pp. 1378 - 1394
Main Authors C., Pradeep Raja, Ramesh, T., N. B., Karthik Babu, N. S., Balaji, Kannan, A. Rajesh, Mohan, Dhanesh G.
Format Journal Article
LanguageEnglish
Published Utrecht Taylor & Francis 02.05.2024
Taylor & Francis Ltd
Subjects
Adhesive bonding
Aluminum base alloys
Bimetals
coefficient of friction
Deep drawing
Diameters
Dissimilar material joining
Dissimilar metals
epoxy
Flow characteristics
Formability
Impact analysis
Lubrication
Mechanical properties
Metal sheets
Process parameters
Stacking sequence (composite materials)
Strain distribution
Strain rate
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Summary:The study investigates the deep drawing process for bimetallic sheets formed by bonding dissimilar metals (AA1100 aluminium alloy and C36000 brass) with epoxy-based adhesive. Experimental exploration of process parameters, including blank diameter, stacking sequence, lubrication, and strain rate, was conducted to analyse their impact on load-displacement behaviour and thickness strain distribution. Additionally, the study assessed fracture susceptibility, material flow characteristics (tearing and wrinkling), and the requisite drawing force for the bonded specimens. Results indicate enhanced formability and mechanical properties in bonded sheets compared to individual metal sheets, demonstrating the potential advantages of this approach. The bonded sheets demonstrated improved formability and mechanical properties compared to individual metals. Notably, the maximum drawing force for the bonded sheet (170 mm diameter) significantly increased to 24.2 kN, surpassing individual sheets by 69.85% for AA1100 and 40.54% for C36000. The analysis identified a vulnerable region (12-15 mm from the centre) under maximum risk of failure and consistent deformation patterns in samples with varying diameters and lubrication, providing valuable insights into the behaviour of bonded bimetallic sheets in deep drawing.
ISSN:0169-4243
1568-5616
DOI:10.1080/01694243.2023.2261272