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<p>Hybrid joints between metal and polymer have gained significant interest in the transportation industry due to their potential for lightweight and multifunctional applications. This research article demonstrates the feasibility of induction joining for dissimilar joints between polymethyl methacrylate (PMMA) and aluminium alloy 6061 (AA6061). The study focuses on the effects of various surface pretreatment methods and joining procedures on the joint interface characteristics and mechanical performance. The aluminium surface was pretreated mechanically through polishing and notching and chemically using sodium hydroxide (NaOH). The joints were fabricated using two distinct joining procedures: sequential thermo-compression and in situ thermo-compression. Characterization of the joints involved shear tensile testing, scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD) analysis. The research outcomes indicated that the bond ratio was primarily influenced by weld holding time and joining procedure. The chemical pretreatment improved the joint strength. The maximum shear strength of 4.22&#xa0;MPa was achieved for the case of in situ joining with chemical surface pretreatment.</p>

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Joining PMMA and AA6061 using induction welding: a study on joining procedure and surface pretreatment

  • 期刊论文

  • 发表日期：

    2025年4月30日

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  • Saer Mesto,
  • Dheerendra Kumar Dwivedi

摘要

Hybrid joints between metal and polymer have gained significant interest in the transportation industry due to their potential for lightweight and multifunctional applications. This research article demonstrates the feasibility of induction joining for dissimilar joints between polymethyl methacrylate (PMMA) and aluminium alloy 6061 (AA6061). The study focuses on the effects of various surface pretreatment methods and joining procedures on the joint interface characteristics and mechanical performance. The aluminium surface was pretreated mechanically through polishing and notching and chemically using sodium hydroxide (NaOH). The joints were fabricated using two distinct joining procedures: sequential thermo-compression and in situ thermo-compression. Characterization of the joints involved shear tensile testing, scanning electron microscopy (SEM) coupled with energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD) analysis. The research outcomes indicated that the bond ratio was primarily influenced by weld holding time and joining procedure. The chemical pretreatment improved the joint strength. The maximum shear strength of 4.22 MPa was achieved for the case of in situ joining with chemical surface pretreatment.