Chinese Journal of Lasers, Volume. 39, Issue 10, 1003002(2012)
Effect of Scanning Methods on the Cracking of the DZ125L Superalloy in Laser Direct Metal Forming
The effect of scanning methods on stress distribution and cracking of the DZ125L superalloy thin-wall structures is investigated numerically and experimentally. The results demonstrat that the stress distribution is not uniform in single-direction scanning method, which leads to warping in both sides of the structures and cracking in the middle regions. However, in back-and-forth scanning method, the stress distribution is relatively uniform, and the fabricated parts have smooth surface without any warping or cracking.
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Doan Tatkhoa, Li Dichen, Lu Bingheng, Zhang Anfeng, He Bin, Do Xuantuoi. Effect of Scanning Methods on the Cracking of the DZ125L Superalloy in Laser Direct Metal Forming[J]. Chinese Journal of Lasers, 2012, 39(10): 1003002
Category: laser manufacturing
Received: Apr. 19, 2012
Accepted: --
Published Online: Sep. 10, 2012
The Author Email: Tatkhoa Doan (doankhoactm@gmail.com)