According to the urgent demand of aluminum alloy complex thick wall structural parts for spatial three-dimensional curve friction stir welding technology, combined with the disadvantage that the traditional friction stir welding head mechanism has poor flexibility and can only complete the welding of two-dimensional linear welds in the plane, this paper takes the three-dimensional parallel friction stir welding head as the research object, and combines the orthogonal parallel mechanism with Combining the advantages of load-bearing capacity and flexibility with friction stir welding technology, and applying the means of design, calculation and simulation, the developed high rigid three-dimensional parallel friction stir welding head has extremely important scientific significance and engineering practical value.
parallel mechanismfriction stir weldinghead mechanism designlight alloy large components
ZHANG S Q，LIU B S，GE J W，et al. Overview and industrialization of three-dimensional parallel friction stir welding technology and equipment［J］. Welding Digest of Machinery Manufacturing，2021（04）：22-24.
HUANG Y. The Structure Design and Analysis of 5-Axis Friction Welding Machine Parallel Header［D］.Heilongjiang： Harbin Engineering University，2013.