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    Effects of holding force on the springback behavior of annealed aluminum plates
    (Elsevier Ltd, 2016) Erdin, Muhammed Emin; Atmaca, Alper
    Typical V-bending process was performed to investigate the effects of holding force on springback behavior of 1050-H14 aluminum alloy plates annealed at 120 °C for 20 minutes. Tests were conducted on a universal testing machine with 60° V-bending mold. Various holding forces (2.25 kN which is slightly higher than the required force for bending operation, 5 kN, 10 kN and 15 kN) were applied at the end of the bending processes to investigate the hardening effect on springback values. The test results showed that annealing decreases springback values in all anisotropy directions. It is also clear from the test data that application of holding force has a significant affirmative effect on springback values. © 2016 The Authors. Published by Elsevier ltd.
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    Implementation of an overall design of a flexible manufacturing system
    (Elsevier Science Bv, 2015) Erdin, M. Emin; Atmaca, Alper
    In this study, an implementation of the design of an FMS is performed to calculate necessary number, utilization and sequence of workstations and plant layout for given production quantities of different parts, processing sequence and times. Analytical bottleneck model and rank order clustering techniques are used in the calculation and analysis of the system. Manufacturing cells are constituted for similar parts to simplify the analysis of the system and to efficient use of workstations. Results are compared with the conventional manufacturing conditions to determine the effectiveness of the implementation. (C) 2015 The Authors. Published by Elsevier Ltd.