Abstract
Sulfur polymer concrete (SPC) is a relatively new material used to replace Portland cement for manufacturing sewer pipes. The objective of this work is to develop an efficient molding machine with an inner rotating die to mix, compress and shape the SPC pipe. First, the alternative concepts were generated based on the TRIZ principles to overcome the drawbacks of existing machines. Then, the concept scoring technique was used to identify the best design in terms of machine structure and product quality. Finally, topology optimization was applied with the support of the density method to reduce mass and to displace the inner die. Results showed that the die volume can be reduced by approximately 9% and the displacement can be decreased by approximately 3% when compared with the initial design. This work is expected to improve the manufacturing efficiency of the concrete pipe molding machine.
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Recommended by Associate Editor Jeong Sam Han
Hong-Seok Park received his Dr.-Ing. degree from the University of Hannover in 1992. He is now a Professor in the School of Mechanical and Automotive Engineering at the University of Ulsan in Korea. His research interests include intelligent manufacturing systems, digital manufacturing techniques and CAD/CAM/CAE.
Trung-Thanh Nguyen received his Master’s degree from Hanoi Univeristy of Science and Technology in 2012. His research interests include multi-objective optimization, energy efficient manufacturing process and CAD/CAM/CNC/CAE.
Prakash Dahal received his B.E. in Mechanical Engineering from Kathmandu University in Nepal in 2007. He received his Master’s degree in Mechanical Engineering from the University of Ulsan in Korea in 2012 under the guidance of Prof. Hong-Seok Park.
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Park, H.S., Nguyen, T.T. & Dahal, P. Development of a new concrete pipe molding machine using topology optimization. J Mech Sci Technol 30, 3757–3765 (2016). https://doi.org/10.1007/s12206-016-0738-9
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DOI: https://doi.org/10.1007/s12206-016-0738-9