Abstract
An experimental advanced high-strength steel grade CP700 was cut using a matrix of laser process parameters in order to generate an understanding of the influence that traverse cutting speed, power and assist gas pressure have on cut-edge formation. The formation of laser cut-edges has been assessed and related to the heat-affected zone microstructure, kerf perpendicularity, surface roughness and waviness properties. It is these characteristics that are significant towards influencing the hole expansion capacity formability properties of laser cut-edges, which were determined to show significant improvements in the formability when using optimum laser cut-edges. Understanding the effect of laser cutting process parameters on the factors influencing striation formation and microstructural deformations was critical towards being able to produce an optimum level of formability.
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Thomas, D.J. The effect of laser cutting parameters on the formability of complex phase steel. Int J Adv Manuf Technol 64, 1297–1311 (2013). https://doi.org/10.1007/s00170-012-4087-2
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DOI: https://doi.org/10.1007/s00170-012-4087-2