Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Mechanical and Thermal Analyses of Metal-PLA Components Fabricated by Metal Material Extrusion

Version 1 : Received: 31 July 2020 / Approved: 2 August 2020 / Online: 2 August 2020 (11:50:12 CEST)

A peer-reviewed article of this Preprint also exists.

Mohammadizadeh, M.; Lu, H.; Fidan, I.; Tantawi, K.; Gupta, A.; Hasanov, S.; Zhang, Z.; Alifui-Segbaya, F.; Rennie, A. Mechanical and Thermal Analyses of Metal-PLA Components Fabricated by Metal Material Extrusion. Inventions 2020, 5, 44. Mohammadizadeh, M.; Lu, H.; Fidan, I.; Tantawi, K.; Gupta, A.; Hasanov, S.; Zhang, Z.; Alifui-Segbaya, F.; Rennie, A. Mechanical and Thermal Analyses of Metal-PLA Components Fabricated by Metal Material Extrusion. Inventions 2020, 5, 44.

Journal reference: Inventions 2020, 5, 44
DOI: 10.3390/inventions5030044

Abstract

Metal additive manufacturing (AM) has gained much attentions in recent years due to its advantages including geometric freedom and design complexity, appropriate to a wide range of potential industrial applications. However, conventional metal AM methods have high-cost barriers due to the initial cost of the capital equipment, support and maintenance, etc. This study presents a unique low-cost metal material extrusion (MME) technology. The filaments used have polylactic acid (PLA) as the matrix and metal powders (copper, bronze, stainless steel, high carbon iron, and aluminum) as reinforcements. Using the proposed fabrication technology, test specimens were built by extruding polymer/metal composite filaments, which were then sintered in an open-air furnace to produce solid metallic parts. In this research, the mechanical and thermal properties of the built parts are examined using tensile tests, thermogravimetric-, thermomechanical- and microstructural analysis.

Subject Areas

metal additive manufacturing; sintering; tensile; mechanical analysis; metal material extrusion

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