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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

On the feasibility of a friction-based staking joining method for polymer-metal hybrid structures

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Abibe, A. B. [1] ; Sonego, M. [2] ; dos Santos, J. F. [1] ; Canto, L. B. [2] ; Amancio-Filho, S. T. [1, 3]
Total Authors: 5
[1] Helmholtz Zentrum Geesthacht, Inst Mat Res, Ctr Mat & Coastal Res, Mat Mech, Solid State Joining Proc, D-21502 Geesthacht - Germany
[2] Fed Univ Sao Carlos UFSCar, Grad Program Mat Sci & Engn PPG CEM, Sao Carlos, SP - Brazil
[3] Hamburg Univ Technol, Inst Polymer Composites, Hamburg - Germany
Total Affiliations: 3
Document type: Journal article
Source: MATERIALS & DESIGN; v. 92, p. 632-642, FEB 15 2016.
Web of Science Citations: 33

The increased use of hybrid structures to reduce weight currently faces the limitations of traditional joining methods. Consequently there is a niche for development of new joining techniques, which can reduce or overcome some of the existing limitations. This paper presents for the first time the new Friction-based Injection Clinching Joining technique (F-ICJ), describing the microstructure and changes in local properties of joints between polyetherimide (PEI) and aluminum alloy 6082-T6. A shear layer around the rotating tool composes a polymer thermomechanically affected zone (PTMAZ), which presents pores as a result of evolution of gaseous products. The PTMAZ shows decreases of 8% to 12% in local strength compared to the base material, as measured by microhardness. Ultimate forces of 1419 +/- 43 N in lap shear and 430 +/- 44 N in cross tensile were achieved for F-ICJ joints. These levels are similar to ultrasonic staking joints of the same material combination, but the hollow design of F-ICJ stakes accounts for improved strength-to-weight ratio (18% in lap shear, 21% in cross tensile). Although the F-ICJ process currently requires longer cycles (7.5 s) than state-of-the-art ultrasonic staking (2.8-2.9 s), generated results indicate that the F-ICJ process is a competitive staking joining method with potential for improvement. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/26293-4 - Friction based injection clinching joining of hybrid joints of polyetherimide and aluminium 6082-T6
Grantee:Marilia Sonego
Support Opportunities: Scholarships in Brazil - Master