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- Title
Effect of Coupling Agent on Interfacial Bonding Properties of Viscoelastic Magnetic Abrasive Tools and Finishing Performance.
- Authors
Xiuhong Li; Wenhui Li; Shengqiang Yang
- Abstract
In magnetic abrasive finishing processes, abrasive tools play a major role on finishing effects. Finishing of complex shaped components needs advanced abrasive tools to produce nano level surface finish. As new abrasive tools, viscoelastic magnetic abrasive tools, made from a mixture of polymer matrix (Polymethyl-vinyl siloxane rubber), magnetic medium, abrasives, and other additives, have excellent viscoelasticity and fluidity. But easy debonding between the magnetic medium, the abrasives and the matrix leads to the uncertain property of the tools. Therefore, those tools have a short life and further disadvantages such as the instability of the physical and chemical properties in the finishing processing and low bonding strength between the filler particles and the matrix. This paper establishes a mathematical model of interface debonding, proposes a surface modification method for the filler particles using silane coupling agents or titanate coupling agents, analyzes the mechanism of the bonding between the surface-modified filler particles and the matrix, and determines the finishing effects of coupling agent on the change in average surface roughness and the surface defects by finishing exepriments on H62 brass tube. It is concluded that the effects of surface modification of the Fe and SiC particles by the coupling agent are favorable and the finishing effect of coupling agent KH-550 is the best. The surface treatment can improve the dispersion and compatibility of the Fe and SiC particles in the matrix, increase the interface bonding strength, and improve the processing capability of viscoelastic magnetic abrasive tools.
- Subjects
SURFACE finishing; INTERFACIAL bonding; VISCOELASTIC materials
- Publication
International Journal of Simulation: Systems, Science & Technology, 2016, Vol 17, Issue 28, p1
- ISSN
1473-8031
- Publication type
Article
- DOI
10.5013/IJSSST.a.17.28.17