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Journal Articles

Existence of Universal Phase Diagrams for Describing General Pore Shape Resulting From an Entrapped Bubble During Solidification

P. S. Wei, C. C. Chang

J. Heat Transfer. October 2016, 138(10): 104503.

Paper No: HT-16-1161

DOI: https://doi.org/10.1115/1.4033499

Published Online: June 7, 2016

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Topics: Bubbles, Phase diagrams, Shapes, Solidification

Proceedings Papers

Geometrical Effects of an Entrapped Bubble on Pore Shape in Solid

S. Y. Hsiao, P. S. Wei

Proc. ASME. IMECE2015, Volume 2B: Advanced Manufacturing, V02BT02A007, November 13–19, 2015

Paper No: IMECE2015-50490

DOI: https://doi.org/10.1115/IMECE2015-50490

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Topics: Bubbles, Shapes, Solidification, Accounting, Biology, Climate change, Food engineering, Geophysics, Momentum

Journal Articles

The Effects of Drilling Parameters on Pore Size in Keyhole Mode Welding

P. S. Wei, T. C. Chao

J. Manuf. Sci. Eng. February 2016, 138(2): 021008.

Paper No: MANU-14-1722

DOI: https://doi.org/10.1115/1.4030531

Published Online: September 9, 2015

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Topics: Drilling, Flow (Dynamics), Pressure, Temperature, Welding, Mach number, Shapes, Vapors, Lasers

Journal Articles

The Effects of Entrainment on Pore Shape in Keyhole Mode Welding

P. S. Wei, T. C. Chao

J. Heat Transfer. August 2015, 137(8): 082102.

Paper No: HT-14-1488

DOI: https://doi.org/10.1115/1.4029039

Published Online: August 1, 2015

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Topics: Pressure, Shapes, Temperature, Welding, Flow (Dynamics), Vapors, Collapse, Melting

Journal Articles

Effects of Entrainment on Incapability of High Intensity Beam Drilling

P. S. Wei, J. H. Wu, T. C. Chao

J. Heat Transfer. August 2015, 137(8): 082101.

Paper No: HT-14-1134

DOI: https://doi.org/10.1115/1.4029086

Published Online: August 1, 2015

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Topics: Collapse, Drilling, Drops, Flow (Dynamics), Flux (Metallurgy), Mach number, Pressure, Shapes, Subsonic flow, Supersonic flow

Proceedings Papers

Controlled Efficiency During Drilling With a High Intensity Beam

J. H. Wu, T. C. Chao, P. S. Wei

Proc. ASME. IMECE2013, Volume 10: Micro- and Nano-Systems Engineering and Packaging, V010T11A032, November 15–21, 2013

Paper No: IMECE2013-63061

DOI: https://doi.org/10.1115/IMECE2013-63061

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Topics: Collapse, Drilling, Flow (Dynamics), Compressible flow, Manufacturing technology, Materials processing, Packaging, Physics, Power density, Probes

Proceedings Papers

Effects of Bubble Growth and Solidification Rate on Pore Formation in Solid

P. S. Wei, S. Y. Hsiao

Proc. ASME. IMECE2012, Volume 3: Design, Materials and Manufacturing, Parts A, B, and C, 827-830, November 9–15, 2012

Paper No: IMECE2012-85922

DOI: https://doi.org/10.1115/IMECE2012-85922

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Topics: Bubbles, Solidification, Shapes

Proceedings Papers

Scale Analysis of Thermocapillary Weld Pool Shape With High Prandtl Number

P. S. Wei, C. L. Lin, H. J. Liu

Proc. ASME. IMECE2011, Volume 10: Heat and Mass Transport Processes, Parts A and B, 451-456, November 11–17, 2011

Paper No: IMECE2011-62464

DOI: https://doi.org/10.1115/IMECE2011-62464

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Topics: Prandtl number, Shapes, Boundary layers, Melting, Momentum, Alloys, Computation, Convection, Corners (Structural elements), Flow (Dynamics)

Proceedings Papers

Spiking and Humping Defects in Laser Welding

P. S. Wei, K. C. Chuang, J. S. Ku

Proc. ASME. IMECE2010, Volume 4: Electronics and Photonics, 83-87, November 12–18, 2010

Paper No: IMECE2010-39513

DOI: https://doi.org/10.1115/IMECE2010-39513

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Topics: Cathode ray oscilloscopes, Electron beam welding, Electron beams, Laser welding, Melting, Porosity, Surface roughness, Welding

Journal Articles

Scaling Weld or Melt Pool Shape Affected by Thermocapillary Convection With High Prandtl Numbers

P. S. Wei, C. L. Lin, H. J. Liu, T. DebRoy

J. Heat Transfer. April 2012, 134(4): 042101.

DOI: https://doi.org/10.1115/1.4005206

Published Online: February 16, 2012

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Topics: Boundary layers, Convection, Corners (Structural elements), Flow (Dynamics), Melting, Shapes, Surface tension, Temperature, Welding, Thermal boundary layers

Journal Articles

Transient Thermocapillary Convection in a Molten or Weld Pool

P. S. Wei, C. L. Lin, H. J. Liu, C. N. Ting

J. Manuf. Sci. Eng. February 2012, 134(1): 011001.

DOI: https://doi.org/10.1115/1.4005302

Published Online: January 11, 2012

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Topics: Convection, Melting, Prandtl number, Shapes, Temperature, Transients (Dynamics), Welding, Gaussian distribution, Vortices, Temperature profiles

Proceedings Papers

Scaling Thermocapillary Surface Velocity in Weld Pool

P. S. Wei, C. L. Lin, C. N. Ting

Proc. ASME. AJTEC2011, ASME/JSME 2011 8th Thermal Engineering Joint Conference, T10141, March 13–17, 2011

Paper No: AJTEC2011-44068

DOI: https://doi.org/10.1115/AJTEC2011-44068

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Topics: Cavities, Computation, Density, Diffusion (Physics), Flow (Dynamics), Heating, Melting, Momentum, Prandtl number, Surface tension

Journal Articles

Thermal Science of Weld Bead Defects: A Review

P. S. Wei

J. Heat Transfer. March 2011, 133(3): 031005.

DOI: https://doi.org/10.1115/1.4002445

Published Online: November 15, 2010

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Topics: Flow (Dynamics), Pressure, Solidification, Surface tension, Waves, Welding, Deformation, Porosity, Temperature, Gas tungsten arc welding

Proceedings Papers

A Model to Predict Pore Shape in Solid During Solidification

S. Y. Hsiao, P. S. Wei

Proc. ASME. IMECE2009, Volume 5: Electronics and Photonics, 1-4, November 13–19, 2009

Paper No: IMECE2009-10344

DOI: https://doi.org/10.1115/IMECE2009-10344

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Topics: Bubbles, Shapes, Solidification, Momentum, Necking

Proceedings Papers

Universal Force Diagrams of a Microbubble in Static Fluid on a Surface

C. C. Hsiao, P. S. Wei, K. Y. Chen

Proc. ASME. MNHT2008, ASME 2008 First International Conference on Micro/Nanoscale Heat Transfer, Parts A and B, 963-968, June 6–9, 2008

Paper No: MNHT2008-52048

DOI: https://doi.org/10.1115/MNHT2008-52048

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Topics: Buoyancy, Dynamics (Mechanics), Fluids, Hydrostatic pressure, Hydrostatics, Kinetic energy, Lift (Fluid dynamics), Pressure, Shapes, Stress

Journal Articles

Analytical Solution of a Creeping Flow Impinging on a Spherical Cap-Shaped Bubble on a Flat Solid Surface

P. S. Wei, C. Y. Ho

J. Appl. Mech. May 2006, 73(3): 516–523.

DOI: https://doi.org/10.1115/1.2126696

Published Online: September 19, 2005

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Topics: Bubbles, Creeping flow, Flow (Dynamics), Pressure, Stagnation flow, Shapes

Journal Articles

Effects of Plasma Parameters on the Temperature Field in a Workpiece Experiencing Solid-Liquid Phase Transition

F. B. Yeh, P. S. Wei

J. Heat Transfer. September 2005, 127(9): 987–994.

DOI: https://doi.org/10.1115/1.1999653

Published Online: April 27, 2005

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Topics: Plasmas (Ionized gases), Temperature, Electrons, Heat conduction, Melting, Ions, Phase transitions

Journal Articles

Modeling Dynamic Electrical Resistance During Resistance Spot Welding

S. C. Wang, Graduate Student, P. S. Wei, Professor, Fellow ASME

J. Heat Transfer. June 2001, 123(3): 576–585.

DOI: https://doi.org/10.1115/1.1370502

Published Online: November 28, 2000

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Topics: Contact resistance, Electrodes, Temperature, Welding, Electrical resistance, Boundary-value problems

Journal Articles

Heat Transfer Coefficient in Rapid Solidification of a Liquid Layer on a Substrate

P. S. Wei, Professor,, F. B. Yeh, Graduate Student

J. Heat Transfer. November 2000, 122(4): 792–800.

DOI: https://doi.org/10.1115/1.1318208

Published Online: May 8, 2000

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Topics: Cooling, Heat transfer, Heat transfer coefficients, Melting, Nucleation (Physics), Solidification, Temperature, Equilibrium (Physics), Specific heat, Thermal conductivity

Journal Articles

Fusion Zone Shapes in Electron-Beam Welding Dissimilar Metals

P. S. Wei, Professor,, Y. K. Kuo, Graduate Student,, J. S. Ku

J. Heat Transfer. August 2000, 122(3): 626–631.

DOI: https://doi.org/10.1115/1.1286681

Published Online: January 14, 2000

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Topics: Metals, Welding, Density

Journal citation

NARROW

Existence of Universal Phase Diagrams for Describing General Pore Shape Resulting From an Entrapped Bubble During Solidification

Geometrical Effects of an Entrapped Bubble on Pore Shape in Solid

The Effects of Drilling Parameters on Pore Size in Keyhole Mode Welding

The Effects of Entrainment on Pore Shape in Keyhole Mode Welding

Effects of Entrainment on Incapability of High Intensity Beam Drilling

Controlled Efficiency During Drilling With a High Intensity Beam

Effects of Bubble Growth and Solidification Rate on Pore Formation in Solid

Scale Analysis of Thermocapillary Weld Pool Shape With High Prandtl Number

Spiking and Humping Defects in Laser Welding

Scaling Weld or Melt Pool Shape Affected by Thermocapillary Convection With High Prandtl Numbers

Transient Thermocapillary Convection in a Molten or Weld Pool

Scaling Thermocapillary Surface Velocity in Weld Pool

Thermal Science of Weld Bead Defects: A Review

A Model to Predict Pore Shape in Solid During Solidification

Universal Force Diagrams of a Microbubble in Static Fluid on a Surface

Analytical Solution of a Creeping Flow Impinging on a Spherical Cap-Shaped Bubble on a Flat Solid Surface

Effects of Plasma Parameters on the Temperature Field in a Workpiece Experiencing Solid-Liquid Phase Transition

Modeling Dynamic Electrical Resistance During Resistance Spot Welding

Heat Transfer Coefficient in Rapid Solidification of a Liquid Layer on a Substrate

Fusion Zone Shapes in Electron-Beam Welding Dissimilar Metals

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