Affiliation:
1. Katholieke Universiteit Leuven
Abstract
The effect of localized laser hardening on the dimensional accuracy of incrementally formed steel sheets has been studied. By dynamically heating by means of laser beam scanning (500W Nd:YAG) the temperature of the sheet reaches the austenization temperature and by subsequent self-quenching a hard martensitic structure will form. Using FE modeling, a laser power setting of 202 W, scanning velocity of 600 mm/min and beam diameter of 6 mm were selected as optimum processing parameters for transformation hardening. Hardness tests were performed in order to investigate the hardness profile along the depth and width of the laser hardened zone. Experimental results reveal that generation of a selectively hardened martensitic band, formed by transformation hardening, can increase the accuracy of the incrementally formed part.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference8 articles.
1. J., Verbert, J.R., Duflou, B., Lauwers, Feature based approach for increasing the accuracy of the SPIF process. Key Engineering Materials. 344 (2007) 527-534.
2. I., Vasilakos, J., Gu, B., Belkassem, H., Sol, J., Verbert, and J.R., Duflou, Investigation of Deformation Phenomena in SPIF Using an In- Process DIC Technique, Key Engineering Materials Vols. 410-411 (2009) 401-409.
3. F., Micari, G., Ambrogio, and L., Filice, Shape and dimensional accuracy in single point incremental forming: state of the art and future trends. J Mater Process Tech. 191 (2007) 390-395.
4. G., Hirt, J., Ames, M., Bambach and R., Kopp, Forming strategies and Process modelling for CNC Incremental sheet forming, Annals of the CIRP, 53, 1, (2004) 203-206.
5. R.W., Honeycombe, H.K., Bahadeshia, Steels: Microstructure and Properties. (2nd ed. ), Arnold, London, 1995, p.83–114.
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