Surface Hardening: Beam Shaping And Coating Techniques

Kazie S. Jasnowski; Pedro Sanz Justes; Jose F. Zubiri Amatriain; Fermin Garciandia Ibanez

doi:10.1117/12.961587

26 October 1989 Surface Hardening: Beam Shaping And Coating Techniques

Kazie S. Jasnowski, Pedro Sanz Justes, Jose F. Zubiri Amatriain, Fermin Garciandia Ibanez

Proceedings Volume 1132, High Power Lasers and Laser Machining Technology; (1989) https://doi.org/10.1117/12.961587
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

The heat treatment and surface hardening of metals is a process that is of considerable interest to the metal working community. The use of lasers to accomplish this heat treatment permits one to produce results not possible with other methods. However, due to the somewhat complex nature of this process it can be confusing and it is sometimes difficult to understand exactly how to proceed: What type of beam shaping to use, what type of coatings to apply, what power levels to use, what laser, etc. In this paper , an examination of four distinct methods of beam shaping are presented. They are: 1. Focusing lens only 2. Beam scanner 3. Beam integrating mirror 4. Kaleidoscope (also known as the light pipe) Coating such as graphite paint, Manganese phosphate and black paint are used. The performance of these devices together with these various coatings, is then examined. Also factors such as the following are considered: 1. Power loss in each device 2. Energy uniformity that each produces 3. Penetrations possible 4. Limitations of each 5. Ease of installation and operation 6. Suitability of each for certain applications. Concerning the coatings, such things as: 1. Types 2. Coating thickness are studied. Each device was used in actual heat treatment with the data then examined and presented here with the hope being that specific merits and drawbacks would become evident.

Citation Download Citation

Kazie S. Jasnowski, Pedro Sanz Justes, Jose F. Zubiri Amatriain, and Fermin Garciandia Ibanez "Surface Hardening: Beam Shaping And Coating Techniques", Proc. SPIE 1132, High Power Lasers and Laser Machining Technology, (26 October 1989); https://doi.org/10.1117/12.961587

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