NUMERICAL ANALYSIS OF PULSED LASER HEATING FOR THE DEFORMATION OF METALS
- 1 December 1998
- journal article
- research article
- Published by Taylor & Francis in Numerical Heat Transfer, Part A: Applications
- Vol. 34 (8) , 791-804
- https://doi.org/10.1080/10407789808914016
Abstract
The energy transfer and surface modification of a metal surface have been studied theoretically during pulsed laser heating. The resulting shape of the deformed surface depends on the laser power, healing time, and diameter. The incident laser power is assumed to have a Gaussian distribution in the radial direction and is absorbed in the region very close to the surface. The energy first diffuses by conduction in the radial and axial directions. Then, when the temperature exceeds the melting temperature, a liquid is formed that flows outward, and the surface deforms. The deformation varies with time, and the peak deformation is proportional to the laser power.Keywords
This publication has 6 references indexed in Scilit:
- Marangoni Mechanism in Pulsed Laser Texturing of Magnetic Disk SubstratesJournal of Heat Transfer, 1997
- Experimental and theoretical studies of bump formation during laser texturing of Ni-P disk substratesIEEE Transactions on Magnetics, 1996
- A new laser texturing technique for high performance magnetic disk drivesIEEE Transactions on Magnetics, 1995
- Laser texturing for low-flying-height mediaJournal of Applied Physics, 1991
- SOLA: a numerical solution algorithm for transient fluid flowsPublished by Office of Scientific and Technical Information (OSTI) ,1975
- Numerical Study of the Effect of Surface Tension on Interface InstabilityPhysics of Fluids, 1969