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Lesson 8 of 9 • 0 upvotes • 9:14mins

Abhinandan Kumar

Welds with constant line energy A longitudinal section along the weld produced with 9kW laser power showed a sinusoidal weld depth variation. The weld depth varied between 1,65mm and 1,9mm. The length of the period was 4,6mm, and was almost constant for the 8m/min and 10m/min welding speeds. As soon as the welding process is in the humping regime, large undercuts are created. And the characteristic periodic humps are building up along the centre of the weld.