입자연마가공에서의 입자크기 및 충돌각의 영향에 대한 고찰
Effects of Abrasive Size and Impact Angle on the Contact Stress in Abrasive Machining Process
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In this study, finite element analysis of particle-surface collision using 2-dimensional elements was performed to observe the effects of abrasive size and impact angle. The result of the simulation on the change in abrasive size revealed that larger abrasive particle induced larger contact stress due to force transfer through slurry fluid as the particle moved and pushed the fluid. This observation brought an important finding that the slurry fluid could make the workpiece surface soften and then change the mechanical properties of the surface layer such as elastic modulus and yield strength. As for the impact angle, it was found that the contact stress increased with the angle of impact and jumped up at a specific angle. Such result would be attributed to the complex effects of the impact velocity and angle.
Abstract
In this study, finite element analysis of particle-surface collision using 2-dimensional elements was performed to observe the effects of abrasive size and impact angle. The result of the simulation on the change in abrasive size revealed that larger abrasive particle induced larger contact stress due to force transfer through slurry fluid as the particle moved and pushed the fluid. This observation brought an important finding that the slurry fluid could make the workpiece surface soften and then change the mechanical properties of the surface layer such as elastic modulus and yield strength. As for the impact angle, it was found that the contact stress increased with the angle of impact and jumped up at a specific angle. Such result would be attributed to the complex effects of the impact velocity and angle.
참고문헌 (20)
- Lin, Y.-Y, "Simulations of a Stress and Contact Model in a Chemical Mechani-cal Polishing Process", Thin Solid Films, 517(21), pp.6027~6033 (2009)
- Saka, N, "Nano-Scale Scratching in Chemical-Mechanical Polishing", CIRP Annals - Manufacturing Technology, 57(1), pp.341~344 (2008)
- Bielawski, M, "Fe Modelling of Surface Stresses in Erosion-Resistant Coatings under Single Particle Impact", Wear, 262(1), pp.167~175 (2007)
- Wensink, H, "A Closer Look at the Ductile-Brittle Transition in Solid Particle Erosion", Wear, 253(9), pp.1035~1043 (2002)
- 성인하, "입자연마가공에서의 입자 형상의 영향에 대한 고찰", 한국윤활학회지, 26(4), pp.219~223 (2010), 한국윤활학회
- 성인하, "On the Relationship between Material Removal and Interfacial Properties at Particulate Abrasive Machining Process", 한국윤활학회지, 25(6), pp.404~408 (2009), 한국윤활학회
- Oliver, M. R, "Chemical Mechanical Polishing", Semiconductor International, 26(6), pp.130~ (2003)
- 양우열, "입자연마가공에서의 압력 속도 및 유체점도의 영향에 대한 고찰", 한국윤활학회지, 27(1), pp.7~12 (2011), 한국윤활학회
- Bathe, K, "Finite Element Analysis of Fluid Flows Fully Coupled with Structural Interactions", Computers and Structures, 72(1), pp.1~16 (1999)
- "On the method of finite spheres in applications: towards the use with ADINA and in a surgical simulator", COMPUTATIONAL MECHANICS, 31(1-2), pp.27~37
- Li, Y, "Microelectronic Applications of Chemical Mechanical Planarization" (2007), Wiley-Interscience
- Feng, J, "Finite Element Simulation of Thermal Stress During Diffusion Bonding of Al2O3 Ceramic to Aluminium", Science and Technology of Welding and Joining, 8(2), pp.138~142 (2003)
- Desale, G. R, "Particle Size Effects on the Slurry Erosion of Aluminium Alloy (Aa 6063)", Wear, 266(11), pp.1066~1071 (2009)
- Clark, H. M, "A Re-Examination of the `Particle Size Effect' in Slurry Erosion", Wear, 248(1), pp.147~161 (2001)
- Gandhi, B. K, "Nominal Particle Size of Multi-Sized Particulate Slurries for Evaluation of Erosion Wear and Effect of Fine Particles", Wear, 257(1), pp.73~79 (2004)
- Finnie, I, "Erosion of Surfaces by Solid Particles", Wear, 3(2), pp.87~103 (1960)
- Oka, Y, "Impact-Angle Dependence and Estimation of Erosion Damage to Ceramic Materials Caused by Solid Particle Impact", Wear, 267(1), pp.129~135 (2009)
- López, D, "Effect of Particle Velocity and Impact Angle on the Corrosion-Erosion of AISI 304 and AISI 420 Stainless Steels", Wear, 259(1), pp.118~124
- Sugiyama, K, "Influence of Impact Angle of Solid Particles on Erosion by Slurry Jet", Wear, 265(5), pp.713~720 (2008)
- Al-Bukhaiti, M, "Effect of Impingement Angle on Slurry Erosion Behaviour and Mechanisms of 1017 Steel and High-Chromium White Cast Iron", Wear, 262(9), pp.1187~1198 (2007)