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

Research output: Contribution to journalJournal articlepeer-review

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  • Mahdi Mohammadizadeh
  • Hao Lu
  • Ismail Fidan
  • Khalid Tantawi
  • Ankit Gupta
  • Seymur Hasanov
  • ZhiCheng Zhang
  • Frank Alifui-Segbaya
  • Allan Rennie
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Article number44
<mark>Journal publication date</mark>24/08/2020
<mark>Journal</mark>Inventions — Open Access Journal
Issue number3
Volume5
Number of pages11
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Metal additive manufacturing (AM) has gained much attention in recent years due to its advantages including geometric freedom and design complexity, appropriate for 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 low-cost metal material extrusion technology as a prospective alternative to the production of metallic parts in additive manufacturing. The filaments used consist of copper, bronze, stainless steel, high carbon iron, and aluminum powders in a polylactic acid matrix. Using the proposed fabrication technology, test specimens were built by extruding metal/polymer 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.