Friction spot welding between porous TC4 titanium alloy and ultra high molecular weight polyethylene

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ID: 77555
2017
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Abstract
Due to the advantages of light-weight, excellent integrated physical/chemical properties and design flexibility, metal/polymer hybrid structures have been increasingly used in automotive, aerospace and biomedical industries, which calls for effective method for joining metal and polymer. In this study, biomedical 3D-printed porous TC4 titanium alloy plate and ultra high molecular weight polyethylene (UHMWPE) plate were successfully joined by friction spot welding (FSpW) technology. The unique welding temperature (Tw) - z-axis force (Fz) evolution at the TC4 plate/UHMWPE plate interface were characterized. During dwell stage, Tw and Fz were identified to be coupled. An arch-shaped embedded zone (EZ) which characterized by the embedment of UHMWPE into porous TC4 formed under non-uniformly distributed Tw at the interface, which provided the most effective bonding mechanism. The porous structure of TC4 plate is critical for the mechanical interfacial bonding formation. As a result, TC4/UHMWPE joints of high lap shear strength can be obtained by forming large EZ. Failure occurred at either TC4 or UHMWPE base plates rather than the TC4 plate/UHMWPE plate interface. Keywords: Friction spot welding, Metal/polymer joining, Welding temperature and force, Macrostructure evolution, Mechanical properties
Reference Key
chen2017frictionmaterials Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Chen, Ke;Chen, Binxi;Zhang, Shanyong;Wang, Min;Zhang, Lanting;Shan, Aidang;
Journal materials & design
Year 2017
DOI
DOI not found
URL
http://www.sciencedirect.com/science/article/pii/S0264127517306603
Keywords
Materials of engineering and construction. Mechanics of materials Technology (General) Technology Mechanical engineering and machinery physics engineering machinery, tools, and implements mining engineering. metallurgy machine design and drawing

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