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ADVANCED MANUFACTURING PROCESSES Prof. Strano – Annoni – Demir SURNAME NAME PERSONAL ID Exam – 20th July 2023 Question n. 1 Fine blanking is the traditional method for producing, with very good precision, the construction steel (C45) gear part shown in the figure, 4 mm thick. After blanking, the part is quenched and tempered to provide its final strength. Consider the removal AMP technologies we have studied as an alternative method for a pre-series production. Which of the following sentences is correct? o All of the material removal technologies (LBM, AWJ, EDM, USM, etc.) we have studied in AMP can be technologically feasible for this production, achieving the required level of quality, therefore one should select the technological AMP alternative which provides the best achievable quality, which is probably wire EDM. o None of the material removal technologies (LBM, AWJ, EDM, USM, etc.) we have studied in AMP can be technologically feasible for this production, achieving the required level of quality with such a thick material. o Some of the technologies we have studied, although they might be technologically feasible, they are not economically feasible because the MRR would be too small, e.g. die sinking EDM and USM. o Because of the subsequent thermal treatment with its induced thermal stresses, none of the thermal technologies we have studied (Laser, plasma, etc.) is feasible. o Because of the subsequent thermal treatment with its induced thermal stresses, none of the mechanical technologies we have studied (waterjet, ultrasonic, etc.) is feasible. Question n. 2 In additive manufacturing by extrusion, the extrusion nozzle temperature is crucial for the success of the process, i.e. for achieving a satisfactory quality of the print. Which of the following sentences…