Start Date
14-12-2021 3:00 PM
Description
Before an engineer designs a part, the type of material and process to manufacture the material must be determined. Before 1980s, metallic raw materials were produced in two steps: beneficiation and smelting or alloying (Encyclopaedia, 2016). In 1981, however, a method for additive manufacturing was formed that involved creating metal parts through a layer-by-layer process. Since then, multiple additive manufacturing methods have been established, and their development has made them more popular in industries. While additive manufacturing processes create parts of the same material as traditional processes, the microstructure and chemical composition of additive manufactured materials vary. Changes in the microstructure of a material impact the material quality, which is an important factor in engineering application.
In this proposal, I am requesting funding from Loyola Marymount University to acquire 162 specimens of AlSi10Mg, manufactured through Directed Energy Deposition (DED) and heat treated at various temperatures and the opportunity to perform materials testing on the samples using equipment in the Structures and Materials Sciences Laboratories. Since AlSi10Mg samples manufactured through Selective Laser Melting (SLM) have been previously tested by LMU’s mechanical engineering department, comparisons can be made with the results of testing the mechanical properties of DED samples to make conclusions regarding how material processes impact the mechanical properties of a material. Differences in the results from samples manufactured through both methods can be used in engineering applications to establish the service life of a material and determine the range of usefulness for the material.
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Selective Laser Melting vs. Directed Energy Deposition for AlSi10Mg Alloys
Before an engineer designs a part, the type of material and process to manufacture the material must be determined. Before 1980s, metallic raw materials were produced in two steps: beneficiation and smelting or alloying (Encyclopaedia, 2016). In 1981, however, a method for additive manufacturing was formed that involved creating metal parts through a layer-by-layer process. Since then, multiple additive manufacturing methods have been established, and their development has made them more popular in industries. While additive manufacturing processes create parts of the same material as traditional processes, the microstructure and chemical composition of additive manufactured materials vary. Changes in the microstructure of a material impact the material quality, which is an important factor in engineering application.
In this proposal, I am requesting funding from Loyola Marymount University to acquire 162 specimens of AlSi10Mg, manufactured through Directed Energy Deposition (DED) and heat treated at various temperatures and the opportunity to perform materials testing on the samples using equipment in the Structures and Materials Sciences Laboratories. Since AlSi10Mg samples manufactured through Selective Laser Melting (SLM) have been previously tested by LMU’s mechanical engineering department, comparisons can be made with the results of testing the mechanical properties of DED samples to make conclusions regarding how material processes impact the mechanical properties of a material. Differences in the results from samples manufactured through both methods can be used in engineering applications to establish the service life of a material and determine the range of usefulness for the material.
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Mentor: Omar Es-said