1. https://en.wikipedia.org/wiki/Laser
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4. D.J. Thomas”Optimizing laser cut-edge durability for steel structures in high stress applications” Journal of Constructional Steel Research, vol 121(1) (2016):page 40-49.
5. Krzysztof Jarosz, Piotr Löschner, Piotr Niesłony ”Effect of Cutting Speed on Surface Quality and Heat-affected Zone in Laser Cutting of 316L Stainless Steel” Journal of Procedia Engineering,vol 149(1) (2016),page 155-162.