Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Analysis of integral hydroforming process in irregular section aviation tube
| DOI: | 10.11809/bqzbgcxb2023.10.015 |
| Keywords: | irregular section tube; hydroforming process; process design |
| Abstract: | In order to solve the problems of low forming accuracy, poor productivity and high cost faced by welded tubes with irregular cross section in the aerospace field, a catheter integral forming process method based on internal high pressure forming is proposed. In this paper, an irregular section aviation tube is set as the research target, three forming processes (pre bending without internal pressure, hydraulic bending and bulging and hydro forging)are proposed, and the feasibility of the proposed process design is verified through finite element simulation. Finally, through the experimental study of the hydroforming forming process, the integral forming of irregular section aviation tube is realized with excellent forming quality and a maximum thinning rate of 6%, which provides reliable technical support for the integral precision forming of this kind of irregular section aviation tube. |
| Issue: | Vol. 44 No. 10 (2023) |
| Published: | 2023-10-28 |
| PDF HTML | |