منابع مشابه
Recent Development in Laser Materials Processing
Recent research and development in laser machining and laser forming processes is reviewed. In the laser machining area, striation formation and prediction, and gas jet workpiece interactions are discussed. In the laser forming area, strain rate effects, and convex forming are presented.
متن کاملHeat accumulation during pulsed laser materials processing.
Laser materials processing with ultra-short pulses allows very precise and high quality results with a minimum extent of the thermally affected zone. However, with increasing average laser power and repetition rates the so-called heat accumulation effect becomes a considerable issue. The following discussion presents a comprehensive analytical treatment of multi-pulse processing and reveals the...
متن کاملChallenge to advanced laser materials processing in Japanese industry
Japan is one of the most advanced countries in manufacturing technology, and lasers have played an important role in the advancement of manufacturing technology in a variety of industrial fields. The contribution of laser materials processing to Japanese industry is significant for both macroprocessing and microprocessing. The present paper describes the recent trend and topics of industrial ap...
متن کاملMaterials processing with a tightly focused femtosecond laser vortex pulse.
In this Letter we present the first (to our knowledge) demonstration of material modification using tightly focused single femtosecond laser vortex pulses. Double-charge femtosecond vortices were synthesized with a polarization-singularity beam converter based on light propagation in a uniaxial anisotropic medium and then focused using moderate- and high-NA optics (viz., NA=0.45 and 0.9) to abl...
متن کاملUltrafast parallel laser processing of materials for high throughput manufacturing
Laser patterning is a key industrial process in the manufacturing of organic light emitting diode (OLED) displays, solid-state lighting foils and solar cells. Ultrafast lasers are of particular interest for this application as they may enable selective ablative removal of OLED layers with minimal energy density requirements on the target. Since sufficient laser output from commercial laser sour...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1989
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1955.75.7_1078