Vibration and tribological properties of epoxy-granite composites used as novel foundations for machine elements
Author:
Abdellah Mohammed Y.12ORCID, Abdelhaleem Ahmed2, Ghulman Hamza A.1, Abdel-Jaber Gamal Tag2
Affiliation:
1. Mechanical Engineering Department, College of Engineering and Islamic Architecture , Umm Al-Qura University, Makkah 21421, Saudi Arabia 2. Mechanical Engineering Department, Faculty of Engineering , South Valley University , Qena , 83523 , Egypt
Abstract
Abstract
Composites have become attractive to many industries today and are a good alternative to many traditional materials. Epoxy granite (EG) is used as a competitive alternative to ground ceramics, especially as a foundation for machine tools. This is because of their high damping ratio compared to other traditional materials such as cast iron. In the present study, a lightweight and cost-effective EG composite material was developed as a new foundation for machine elements. The composite material EG was prepared by mixing epoxy resin (12 wt %) and granite particles by casting method. The crushed granite particles were sieved and separated into coarse particles ≤2.36 ≥ 1.18 mm, medium particles ≤1.18 ≥ 0.6 and fine particles ≤0.6 mm. Vibration modal analysis is performed using an impact hammer to measure the natural frequencies occurring at each material size and the damping ratios. Microbial and fungal resistance is tested to understand applicability in humid environments, and water absorption and soak resistance were also measured. Scratch tests are performed using a top scratch tester to measure scratch width for fine and coarse samples. The electrostatic discharges generated by friction on the rubber and granite-epoxy composite sole are measured. It was found that as the particle size decreases, the damping ratio increases and the damping capability is improved, both microbial and fungal resistance increases, the scratch width is small for fine particles, while it is difficult to achieve for other granite sizes. Electrostatic discharges show a better feel for the composite material, but it is better with fine particles.
Publisher
Walter de Gruyter GmbH
Subject
Materials Chemistry,Polymers and Plastics,General Chemical Engineering
Reference41 articles.
1. Abdellah, M. Y., Abdelhaleem, A., Alnaser, I. A., Abdel-Jaber, G. T., Abdal-hay, A. Flexural, compression and fracture properties of epoxy granite as a cost-effective structure materials: new machine element foundation. AIMS Mater. Sci. 2021, 8, 82–98; https://doi.org/10.3934/matersci.2021006. 2. Ramana, M. V., Thyla, P. R., Mahendrakumar, N., Praveena, K. Selection of resin and aggregates for particulate polymer concrete machine tool structures - a review. Mater. Today Proc. 2021, 46, 8621–8628; https://doi.org/10.1016/j.matpr.2021.03.595. 3. Omar, M., Abdelrhman, Y., Hassab, M. I., Khierldeen, M. Experimental study on compressive strength and flexural rigidity of epoxy granite composite material. J. Eng. Sci. 2021, 49, 198–214; https://doi.org/10.21608/jesaun.2021.61303.1033. 4. Do Suh, J., Kim, H. S., Kim, J. M. Design and manufacture of composite high speed machine tool structures. Compos. Sci. Technol. 2004, 64, 1523–1530. 5. Suh, J. D., Lee, D. G. Design and manufacture of hybrid polymer concrete bed for high-speed CNC milling machine. Int. J. Mech. Mater. Des. 2008, 4, 113–121; https://doi.org/10.1007/s10999-007-9033-3.
|
|