Desktop manufacturing using diode lasers

Chandrasekhar Roychoudhuri

doi:10.1117/12.309507

3 June 1998 Desktop manufacturing using diode lasers

Chandrasekhar Roychoudhuri

Proceedings Volume 3274, Laser Applications in Microelectronic and Optoelectronic Manufacturing III; (1998) https://doi.org/10.1117/12.309507
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

Semiconductor laser diodes, while not yet ready to replace YAG and CO₂ lasers from heavy duty machining, are already capable of carrying out a number of manufacturing jobs that require a power density of 100 kw/cm² or less, and CW power of 100 Watt or less. We present results of cutting cellulose materials, marking plastics, soldering electronic circuit boards, surface (transformation) hardening, chemical vapor phase deposition (by gas breakdown) using fiber coupled CW lasers at 810 nm (60 Watts) and 980 nm (25 Watts). We also present the results of sintering metal powders under different conditions to improve density and hardness, demonstrating that diodes can do an excellent job in solid free-form development (or rapid prototyping).

Citation Download Citation

Chandrasekhar Roychoudhuri "Desktop manufacturing using diode lasers", Proc. SPIE 3274, Laser Applications in Microelectronic and Optoelectronic Manufacturing III, (3 June 1998); https://doi.org/10.1117/12.309507

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