By Narendra B. Dahotre
ISBN-10: 0387723439
ISBN-13: 9780387723433
ISBN-10: 0387723447
ISBN-13: 9780387723440
Laser machining is an rising quarter with a large choice of functions, starting from bulk machining in steel forming to micromachining and microstructuring in electronics and biomedical purposes. the original houses of lasers permit to be used in versatile production concepts akin to laser-assisted mechanical machining (LAM) and laser-assisted chemical machining (LCM). Laser Fabrication and Machining of Materials presents a accomplished assessment of the elemental rules and rising functions of lasers concerning fabric elimination and forming methods, and likewise offers a hyperlink among complicated fabrics and complex processing and production techniques.
Laser Fabrication and Machining of Materials introduces readers to the basic houses and actual phenomena of laser machining and its functions at the macro, micro, and nano scales. Examples of present, rising, and capability ideas are mentioned, giving scholars and working towards engineers alike the chance to extend their use of lasers in such disciplines as mechanical techniques, electronics, fabrics, and production.
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Additional resources for Laser Fabrication and Machining of Materials
Example text
Physika Zeitschrift 18:121–128. Haken H (1983) Laser Theory. Springer, Berlin. Ion J (2005) Laser Processing of Engineering Materials: Principles, Procedures and Industrial Applications. Butterworth-Heinemann, Oxford. Kasap SO (2002) Principles of Electronic Materials and Devices. McGraw-Hill, New York. Kogelnik H, Li T (1966) Laser beams and resonators. Applied Optics 5:1550–1567. Lorrain P, Corson DR (1970) Electromagnetic fields and waves. WH Freeman, San Francosco. Maiman TH (1960) Stimulated optical radiation in ruby.
For better laser efficiency, S1→S0 transitions should be maximized and S1→T1 transitions should be minimized. A variety of dye materials is available with a wide tuning range of wavelengths (Duley 1983). References Chow WW, Koch SW, Sargent III M (1994) Semiconductor-laser Physics. Springer, Berlin. Chryssolouris G (1991) Laser Machining-theory and Practice. Springer, New York. Cullity BD (1978) Elements of X-ray Diffraction. Addison-Wesley, Reading, MA. Dausinger F, Lichtner F, Lubatschowski H (2004) Femtosecond Technology for Technical and Medical Applications.
Moreover, the cooling rate strongly depends on the absorbed laser power density and has a negative sign. 3 Thermal Effects 49 Fig. 11 Variation of calculated temperature gradient with fractional melt depth during laser irradiation of nickel. 025 mm using three absorbed laser power densities (Q0, W/cm2) (Reprinted from Breinan and Kear 1983. With permission. Copyright M. Bass, Editor) 3. , at the instance of cessation of laser power), the solidification rate (R) is zero and then approaches infinity as it proceeds towards the surface of the material.