Research on bending process of aluminum profile longitudi-nal beam
Due to the large size of the aluminum profiles longitudinal beam,the bending springback was difficult to control,and the three-dimensional bending trajectory needed to be determined in advance,and the bending trajectory needed to be determined through debugging several times,the two-dimensional combined bending was proposed to achieve three-dimensional bending of the longitudinal beam.Firstly,the three-dimensional bending forming of the aluminum profile longitu-dinal beam was equivalently transformed into two two-dimensional bending combinations.Sec-ondly,the bending order in each direction was determined according to the projection of the parts on the main plane.In addition,the reverse deformation value was preset according to the CAE analysis results.Finally,it was verified by trial production,and the results showed that two-dimen-sional combined bending combined with local heat bath and pressure holding could effectively re-duce the springback of aluminum profile longitudinal beams.
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