E-resources
Peer reviewed
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Huang, Yongxian; Meng, Xiangchen; Zhang, Yabin; Cao, Jian; Feng, Jicai
Journal of materials processing technology, December 2017, 2017-12-00, 20171201, Volume: 250Journal Article
Display omitted The plunging depth of 0.05mm was optimum for joint formation of 0.5mm thick Al-6061 sheet by micro friction stir welding. Increasing rotational velocity from 1500rpm to 2000rpm was beneficial to sound surface formation, while the taper pin with three flats owned wider process window than the single taper pin. The minimum ratio of thickness reduction of 2% was attained, which enhanced the area of load bearing. The taper pin with three flats owing to the severe stirring actions resulted in the finer grain size, improving tensile property. The maximum tensile strength by the taper pin with three flats reached 217MPa, equivalent to 90% of base material.
