Session: Research Posters

Paper Number: 120030

120030 - Investigating the Influence of Thermal Gradient on Mechanical Properties in Fdm 3d Printing 

FDM 3D printing involves extruding thermoplastic filaments layer by layer to create functional parts. However, the thermal behavior during the printing process and its impact on mechanical properties remain critical areas that require further investigation. This abstract presents ongoing research aimed at better understanding the relationship between the thermal gradient of the FDM 3D printing process and its corresponding mechanical properties. The objective is to enhance the quality and functionality of 3D-printed components. To achieve this goal, we have designed a series of experiments where the key process parameters of FDM, including print speed, layer thickness, and nozzle temperature, are systematically varied. By manipulating these parameters, we aim to create a range of thermal gradients during the printing process. To evaluate the mechanical properties, tensile specimens conforming to ASTM D638 are printed using a commercial FDM 3D printer. ASTM D638 is a standard test method that measures the tensile properties of plastics, providing valuable insights into their mechanical behavior. The tensile specimens are carefully designed and manufactured with sufficient accuracy to ensure reliable and repeatable test results. To capture the thermal gradient during printing, a high-resolution FLIR thermal camera is employed. The camera is positioned to focus on the region where fresh molten material is deposited, enabling precise temperature measurements. By analyzing the thermal data obtained from the camera, we can quantify the thermal gradient experienced by the printed part. Once the specimens are printed, they undergo thorough mechanical testing using MTS Exceed 42 machines. Tensile testing is performed according to the ASTM D638 standard, which involves applying a uniaxial load until the specimen fractures. The mechanical properties of interest include yield strength, ultimate tensile strength, and elongation at break. These properties provide essential information regarding the material's strength, ductility, and overall performance under tension. The experimental results obtained from the tests will be analyzed to identify any correlations between the thermal gradient and the mechanical properties. By studying the relationship between these factors, we aim to gain insights into the underlying thermal phenomenon in the FDM 3D printing process and its influence on the mechanical behavior of printed parts. The findings from this research are expected to contribute significantly to the understanding of thermal effects in FDM 3D printing and their implications for mechanical performance. The insights gained can be utilized to optimize the printing process and enhance the quality and functionality of 3D-printed components. Industries relying on FDM technology, such as aerospace, automotive, and medical sectors, can benefit from improved process control, leading to enhanced part reliability and performance.

Presenting Author: Cori Yancy Prairie View A&M University

Presenting Author Biography: Cori Yancy is a graduate student in Mechanical Engineering at Prairie View A&M University. Her research interest is on additive manufacturing, thermal imaging, and mechanical testing. Her thesis work focuses on thermal gradient of fused deposition modeling and its effect on mechanical properties to enhance better print quality and part function.

Authors:

Cori Yancy Prairie View A&M University
Ethan Phillips Prairie View A&M University
Rambod Rayegan Prairie View A&M University
Jaejong Park Prairie View A&M University