Optimization of the polymer concrete used for manufacturing bases for precision tool machines |
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| Authors: | Header Haddad Mohammad Al Kobaisi |
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| Affiliation: | 1. Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Melbourne, VIC 3122, Australia;2. School of Applied Sciences, RMIT University, Melbourne, VIC 3000, Australia;1. Manufacturing Science Division, Oak Ridge National Laboratory, 2350 Cherahala Blvd, Knoxville, TN 37932, USA;2. University of Tennessee, Knoxville, 1512 Middle Dr., Knoxville, TN 37996, USA;1. Department of Chemical Engineering, Faculty of Engineering, Çank?r? Karatekin University, 18120 Çank?r?, Turkey;2. Department of Civil Engineering, Faculty of Engineering, Osmaniye Korkut Ata University, 80000 Osmaniye, Turkey;3. Microelectronics, Guidance & Electro-Optics Business Sector, ASELSAN A.?., 06750 Ankara, Turkey;4. Department of Civil Engineering, Faculty of Engineering, Afyon Kocatepe University, 03200 Afyon, Turkey;1. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China;2. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan 610031, China;3. The Moe Key Laboratory of Disaster Forecast and Control in Engineering, Jinan University, Guangzhou 510632, China;1. Department of Mechanical Engineering, Faculty of Engineering, University of Isfahan, 81746-73441 Isfahan, Iran;2. Welding and Joining Research Center, School of Industrial Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114 Tehran, Iran;3. Fatigue and Fracture Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114 Tehran, Iran;4. Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology (IUST), Narmak, 16846-13114 Tehran, Iran |
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| Abstract: | Due to its superior damping ratio, high adhesion and fast curing, polymer concrete is used in manufacturing bases for a wide range of precision machines. The coefficient of thermal expansion for polymer concrete is one of the main parameters that can affect the level of accuracy in precision tool machines. Flexural strength is a fundamental strength of the base. In this study six aggregates (basalt, spodumene, fly ash, river gravel, sand and chalk) were investigated. Polymer concrete samples were prepared with different compositions of aggregates containing the same resin volume fraction (aggregates 83% and risen 17%). A four points flexural test was employed to measure the flexural strength of the polymer concrete samples. The coefficient of thermal expansion for polymer concrete was measured using a custom built device. The preliminary optimum composition, with the highest flexural strength and lowest thermal expansion coefficient, was found to be basalt, spodumene and fly ash. Basalt, sand and fly ash composition was the second in the rank. The second composition was nominated for further optimization in terms of resin volume fraction in consideration of its ability to adapt a smaller amount of resin. Different samples of polymer concrete were prepared with a variety of resin volume fractions as follows; 17%, 15% and 13%. The resin volume fraction has been demonstrated to have a significant effect on the coefficient of thermal expansion and flexural strength for polymer concrete. The final optimized composition was basalt, sand and fly ash (filler 87% and resin 13%). ANSYS 13 software was employed in visualizing the influence of polymer concrete compositions on the thermal expansion of the base and how it affected the level of precision of the tool machine. |
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