Adebayo, AdeyinkaMehnen, JornTonnellier, XavierDeRoy, R.David, S. A.Koseki, T.Basdeshia, H.2014-05-242014-05-242013-04-16Adebayo A, Mehnen J, Tonnellier X. Limiting travel speed in additive layer manufacturing. Proceedings of the 9th International Conference on Trends in Welding Research, June 4-8 2012, Chicago, Illinois, USA.9781627089982http://dspace.lib.cranfield.ac.uk/handle/1826/8477Wire and Arc Additive Manufacture (WAAM) is new approache to modern manufacturing. This technology has been gaining the interest of the research community due to its high deposition rate and efficiency. In Wire and Arc Additive Manufacture an increase in productivity can be achieved through the use of high weld travel speeds. However, this can be overshadowed by the so called humping effect. Humping is a defect in welding which expresses itself by the formation of humps and valleys that prevent further welding deposition operation. The generation of these defects is studied by critically examining the various weld travel speeds from different weld parameters. From the study the actual weld travel speed in which humping formation starts to appear is 0.6m/min. The effects of wire feed speed and travel speed on bead geometries are also been discussed.en-UKCopyright 2012 ASM International. This paper was published in 9th International Conference on Trends in Welding Research, June 4-8 2012, Chicago, Illinois, USA, and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.Conference paper