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为了研究各工艺参数对有模单点渐进成形直壁筒形件成形性能的影响,采用正交实验法,对层间距、工具头半径、进给速度和成形道次4个工艺参数进行优化设计,对板料变形区厚度进行仿真研究,并通过极差分析,得出各工艺参数对成形后板料最小厚度的影响。研究结果表明:各工艺参数中,成形道次数对板料成形最小厚度影响最大,工具头半径影响最小;对1 mm厚的1060铝合金板进行优化后,最小成形厚度为0.389 mm,比2道次成形后的最小厚度0.242 mm提高了60%。因此,在有模单点渐进成形直壁筒形件过程中,成形时间允许时,可适当增加成形道次,提高成形质量。
In order to study the influence of process parameters on the forming performance of single-point progressive forming cylindrical mandrel with mold, orthogonal design was used to optimize the design parameters of layer spacing, tool head radius, feed speed and forming pass. , The deformation of the sheet thickness simulation study, and through the analysis of the difference, the process parameters obtained after the formation of the minimum thickness of the sheet. The results show that the number of forming pass has the most influence on the minimum thickness of sheet metal forming and the least influence of tool radius on each process parameter. The minimum forming thickness of 1mm thick 1060 aluminum alloy plate is 0.389 mm, After forming the minimum thickness of 0.242 mm increased by 60%. Therefore, in the process of forming a straight-walled cylindrical part with a single-point progressive mold, the forming pass may be appropriately increased when the forming time is allowed to improve the forming quality.