<p>The over utilization of fossil fuel based heavy materials are going to depleted in the upcoming decades and it has also demanded more fuel consumption due to high dense nature, which create pollution in the environment. To make solution for this, light weight bio polymer based composite materials are used and are welded using Friction stir welding process (FSW) to design and utilized in complicated work job. Thus, the present research aims is to study less dense nature of 3D printed PLA and ABS plate are joined by FSW and novelty of this study is to strengthen those welded material by infusing biosilica particle under the weld zone. This FSW and biosilica infused PLA/ABS composites performance are analysed by testing tensile, impact, hardness, and fatigue properties of the composite as per ASTM standard. The results of this study concluded that the maximum tensile strength of 52&#xa0;MPa, impact strength of 0.39&#xa0;J, and fatigue loading cycles of 20, 576 for applied ultimate tensile stress (UTS) are demonstrated by the welded composite designated A3 with a 2 vol% biosilica addition and a constant stirring speed of 500&#xa0;rpm. The biosilica-infused A3 welded composite exhibits 62.5%, 116%, and 149% better tensile strength, impact strength, and fatigue life cycle, respectively, in comparison to the plain welded composite A0 without any reinforcements. However, FSW composite A4 has a surface hardness of 70 (shore-d), and a maximum of 5 vol% biosilica is added to the welded zone. Further, the microstructural analysis of the FSW composite is viewed through field emission scanning electron microscope and EDAX. Therefore, these enhanced properties in FSW composite could be used in applications such as automobiles, exterior cover parts in aerospace, spacecraft, military defense manufacturing, and infrastructure civil engineering applications, etc.</p>

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Performance characterization of dissimilar acrylonitrile butadiene styrene-polylactic acid 3-D printed plates reinforced with biosilica

  • S. Karthikeyan,
  • N. Baskar,
  • M. Ganesan,
  • P. Rajkumar

摘要

The over utilization of fossil fuel based heavy materials are going to depleted in the upcoming decades and it has also demanded more fuel consumption due to high dense nature, which create pollution in the environment. To make solution for this, light weight bio polymer based composite materials are used and are welded using Friction stir welding process (FSW) to design and utilized in complicated work job. Thus, the present research aims is to study less dense nature of 3D printed PLA and ABS plate are joined by FSW and novelty of this study is to strengthen those welded material by infusing biosilica particle under the weld zone. This FSW and biosilica infused PLA/ABS composites performance are analysed by testing tensile, impact, hardness, and fatigue properties of the composite as per ASTM standard. The results of this study concluded that the maximum tensile strength of 52 MPa, impact strength of 0.39 J, and fatigue loading cycles of 20, 576 for applied ultimate tensile stress (UTS) are demonstrated by the welded composite designated A3 with a 2 vol% biosilica addition and a constant stirring speed of 500 rpm. The biosilica-infused A3 welded composite exhibits 62.5%, 116%, and 149% better tensile strength, impact strength, and fatigue life cycle, respectively, in comparison to the plain welded composite A0 without any reinforcements. However, FSW composite A4 has a surface hardness of 70 (shore-d), and a maximum of 5 vol% biosilica is added to the welded zone. Further, the microstructural analysis of the FSW composite is viewed through field emission scanning electron microscope and EDAX. Therefore, these enhanced properties in FSW composite could be used in applications such as automobiles, exterior cover parts in aerospace, spacecraft, military defense manufacturing, and infrastructure civil engineering applications, etc.