June 15, 2019
June 15, 2019
June 19, 2019
To enhance learning efficiency, improve critical thinking ability, and develop potential research interest, a laboratory project of a mechanics course has been innovated for sophomore-level students in a mechanical engineering technology (MET) program at XXXXXX University. In this group project, students will compare and analyze the data collected from both hardness and tensile testing of ABS (Acrylonitrile butadiene styrene) specimens. The laboratory procedures and the testing specimen geometries follow appropriate standards for materials testing. The experiment includes a study on the effects of manufacturing process and plastic colorants by using two different manufacturing processes and six different colors. After two semesters learning of materials and processes in the freshmen year, students are expected to test, compare, and explore the difference in the results caused by the variability in manufacturing process and material. The understanding of mechanical properties, such as resilience, yield stress, normal strain, and modulus of elasticity, are strengthened and extended from the textbook and the lectures. At the same time, this project helps students get more hands-on practice in working on sample production, measurement, and testing processes. Pre- and post-surveys focused toward learning efficiency, research interest, laboratory experience, and team working will be completed by the students. This paper will present the results of both surveys and the discussion and conclusion from the students’ project reports.
Keywords: Tensile test, Hardness, Colorant, Specimen manufacture
Vian, W. D., & Denton, N. L. (2019, June), Laboratory Project Determining the Effect of Process Types on the Mechanical Properties Paper presented at 2019 ASEE Annual Conference & Exposition , Tampa, Florida. 10.18260/1-2--33043
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