Concepts for advanced aluminum welding adaptation techniques for the chemical oxygen iodine laser (coil)

Charmaine Cisneros Franck

doi:10.1117/12.234204

1 March 1996 Concepts for advanced aluminum welding adaptation techniques for the chemical oxygen iodine laser (coil)

Charmaine Cisneros Franck

Proceedings Volume 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95; (1996) https://doi.org/10.1117/12.234204
Event: Fifth International Conference on Industrial Laser and Laser Applications '95, 1995, Shatura, Moscow, Russian Federation

Abstract

This paper describes and develops the concept of adapting the chemical oxygen iodine laser (COIL) system for aluminum welding. The suitability of the COIL for welding aluminum or Al-Si_X alloys, such as A40 is evaluated using current welding material processing techniques. The problem of high thermal conductivity coupled with the high reflectivity of aluminum, which makes it difficult to laser weld, is addressed by proposing the use of a mathematical model for laser welding. The model should predict the size of a laser weld to the net heat absorbed by the workpiece. Thus, the problem of excessive heat flow to components is addressed. The possibility of utilizing the high output power of the COIL by applying 'binary optics' technology to convert the high power and high quality Gaussian output of the main beam into a set of high quality Gaussian sub-beams which will be transported via fiber optics delivery to the sample surface(s) is also discussed. The COIL is a viable source for future satellite construction which requires hermetic sealing of components and instrumentation.

Citation Download Citation

Charmaine Cisneros Franck "Concepts for advanced aluminum welding adaptation techniques for the chemical oxygen iodine laser (coil)", Proc. SPIE 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95, (1 March 1996); https://doi.org/10.1117/12.234204

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KEYWORDS

Chemical oxygen iodine lasers

Aluminum

Laser welding

Nd:YAG lasers

Carbon dioxide lasers

Fiber optics

Satellites

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