Selection of Welding Parameter during Friction Stir Spot Welding

Event
SAE World Congress & Exhibition
Authors Abstract
Content
The selection of parameters during friction stir spot welding of Al-alloys and Mg-alloys is discussed. The role of tool rotation speed, plunge rate, and dwell time is examined in relation to the tool heating rate,temperature, force, and torque that occur during spot welding. In order to reduce the cycle time and tool force during Al- alloy spot welding, it is necessary to increase the tool rotation speed >1500 RPM. The measured peak temperature in the stir zone is determined by the rotation speed and dwell time, and is ultimately limited by the solidus of the alloy. When tool rotation speeds >1500 RPM are employed during AZ91 Mg-alloy spot welding, the tendency for melted film formation and cracking are greatly increased.
Meta TagsDetails
DOI
https://doi.org/10.4271/2008-01-0146
Pages
8
Citation
Gerlich, A., Yamamoto, M., Shibayanagi, T., and North, T., "Selection of Welding Parameter during Friction Stir Spot Welding," SAE Int. J. Mater. Manf. 1(1):1-8, 2009, https://doi.org/10.4271/2008-01-0146.
Additional Details
Publisher
Published
Apr 14, 2008
Product Code
2008-01-0146
Content Type
Journal Article
Language
English