Joining of metal and non-polar polypropylene composite through a simple functional group seeding layer

A. S. Khan; F. Liu; P. Dong

doi:10.1016/j.jmapro.2022.11.022

Joining of metal and non-polar polypropylene composite through a simple functional group seeding layer

A. S. Khan, F. Liu, P. Dong

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Polypropylene (PP) and its composites are one of the hardest to directly join with metals due to their inherent chemical incompatibility. This paper presents a simple, efficient, and cost-effective method for joining PP composite to aluminum alloy in spot welding configuration by seeding the functional groups via an insert layer of PA6 thin film without requiring surface or material pre-treatment. The resulting joint loading capacity is shown to be sufficiently high to consistently develop failures in PP substrates in lap shear tensile tests away from the bonded area. Joint interface microstructure features are examined in detail. Bonding mechanisms are then described based on the detailed observations obtained in this study.

Original language	English
Pages (from-to)	90-100
Number of pages	11
Journal	Journal of Manufacturing Processes
Volume	85
DOIs	https://doi.org/10.1016/j.jmapro.2022.11.022
State	Published - Jan 6 2023
Externally published	Yes

Funding

This work was supported in part by the University of Michigan College of Engineering research incentive grant and a grant from the National Science Foundation (NSF CMMI 2126163 ).

Keywords

Aluminum alloy
Bonding interface
Friction spot welding
Hybrid structures
Metal to polymer joining
Multi-material
Polymer composites
Surface pre-treatment

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10.1016/j.jmapro.2022.11.022

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title = "Joining of metal and non-polar polypropylene composite through a simple functional group seeding layer",

abstract = "Polypropylene (PP) and its composites are one of the hardest to directly join with metals due to their inherent chemical incompatibility. This paper presents a simple, efficient, and cost-effective method for joining PP composite to aluminum alloy in spot welding configuration by seeding the functional groups via an insert layer of PA6 thin film without requiring surface or material pre-treatment. The resulting joint loading capacity is shown to be sufficiently high to consistently develop failures in PP substrates in lap shear tensile tests away from the bonded area. Joint interface microstructure features are examined in detail. Bonding mechanisms are then described based on the detailed observations obtained in this study.",

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AU - Khan, A. S.

AU - Liu, F.

AU - Dong, P.

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Y1 - 2023/1/6

N2 - Polypropylene (PP) and its composites are one of the hardest to directly join with metals due to their inherent chemical incompatibility. This paper presents a simple, efficient, and cost-effective method for joining PP composite to aluminum alloy in spot welding configuration by seeding the functional groups via an insert layer of PA6 thin film without requiring surface or material pre-treatment. The resulting joint loading capacity is shown to be sufficiently high to consistently develop failures in PP substrates in lap shear tensile tests away from the bonded area. Joint interface microstructure features are examined in detail. Bonding mechanisms are then described based on the detailed observations obtained in this study.

AB - Polypropylene (PP) and its composites are one of the hardest to directly join with metals due to their inherent chemical incompatibility. This paper presents a simple, efficient, and cost-effective method for joining PP composite to aluminum alloy in spot welding configuration by seeding the functional groups via an insert layer of PA6 thin film without requiring surface or material pre-treatment. The resulting joint loading capacity is shown to be sufficiently high to consistently develop failures in PP substrates in lap shear tensile tests away from the bonded area. Joint interface microstructure features are examined in detail. Bonding mechanisms are then described based on the detailed observations obtained in this study.

KW - Aluminum alloy

KW - Bonding interface

KW - Friction spot welding

KW - Hybrid structures

KW - Metal to polymer joining

KW - Multi-material

KW - Polymer composites

KW - Surface pre-treatment

UR - https://www.scopus.com/pages/publications/85142522829

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DO - 10.1016/j.jmapro.2022.11.022

M3 - Article

AN - SCOPUS:85142522829

SN - 1526-6125

VL - 85

SP - 90

EP - 100

JO - Journal of Manufacturing Processes

JF - Journal of Manufacturing Processes

ER -

Joining of metal and non-polar polypropylene composite through a simple functional group seeding layer

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