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Additive manufacturing (AM) technology is nowadays one of the advanced manufacturing technologies used to convert three dimensional product data to physical objects without any special tooling. The emergence of the technology has made production of complex geometries having consumer demands for more customized products and services. Though the underlying technology was initially intended for rapid prototyping, the technology has recently getting wider attention in diverse industrial sectors using different material types commonly polymers, metals, ceramics, and other compatible researched materials as input. Because the technology processes the input materials with no or very low wastes, the use of polymer composite materials leads to a no waste manufacturing system. This article aims to review and analyse the opportunity and existing challenges for AM technology in processing polymer composites and provide an insight on the state-of -the art applications. The paper provides an overview of the materials and processes currently available for this novel production technology to fill the industrial needs for engineering application. In addition, closely reviewing published research works in the area, the existing research gaps are identified for possible future research in the field.

The present study is focused on investigating the mechanical properties of hybrid polymer composites. The reinforcement materials are animal bone (ox) particulate and E-glass fiber. The matrix material is epoxy resin. The following combinations are considered for investigation: (a) bone particulate weight percent (20%, 30%, and 40%), (b) E-glass fiber weight percent (20%, 30%, and 40%), and (c) bone particulate (10%, 20%, and 30%) and E-glass fiber (30%, 20%, and 10%) with epoxy resin 60% by weight percent. The test specimens are prepared as per the required ASTM standard for tensile, compressive, and flexural tests. The test results show that maximum tensile and compressive strength observed in 40% of E-glass fiber with 60% of epoxy matrix, correspondingly, is 254.964 MPa and 37.52 MPa. The maximum flexural strength observed in E-glass fiber reinforced composites is 250.43 MPa.

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