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The Pedagogy of Materials - From Birth to Bachelor's Degree in Mechanical Engineering

Dr Claes Fredriksson | University West

The Pedagogy of Materials - From Birth to Bachelor's Degree in Mechanical Engineering

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Pedagogy, literally meaning "to lead the child" in Greek, can be defined as the art of teaching. In a more modern and broader sense, it can also be interpreted as "the holistic science of education" (Wikipedia). In this presentation, an overview is delivered over the development of an individual's understanding of materials, evolving from our first encounter with a material (guess which!) to an example of a bachelor's degree work in manufacturing. This account is drawn from experience of educating primary school teachers in science and mechanical engineering students in materials science and engineering. An inventory with respect to materials content in the newly adopted national curriculums for pre-schools, primary and secondary schools in Sweden is presented. The results from a small local survey of attitudes and knowledge concerning materials for student teachers (for children of early years) and for first-year students of mechanical engineering are reviewed. Some suggestions for promoting materials education are made. Potential applications of interest to software developers specializing in visualization of materials properties are also pointed out. Finally, a specific example of how the CES EduPack 2012 database can be used in a 10-week Bachelor's degree project in manufacturing is discussed. The purpose of this study was to clarify the energy and CO2 content embedded in a cutting insert for turning, from extraction to finished tool were studied. A Life cycle inventory (LCI) was performed for two cutting inserts, one cemented carbide and one ceramic, then energy consumption and CO2 emissions were compared. The results show that the total energy consumption over the service life of a cemented carbide insert is less than for a ceramic insert.However, since high material removal rate (MRR), also give high energy consumption, a green performance indicator (GPI), based on the ratio between material removal and life-cycle energy (or CO2 emissions) was used. The GPI shows that the ceramic insert lowers the environmental impact of the machined component using turning.