工艺参数对1060铝合金带法兰筒形件铲旋成形质量的影响规律

    Effects of Process Parameters on Shovel Spinning Quality of 1060 Aluminum Alloy Flanged Cylindrical Parts

    • 摘要: 针对铝合金带法兰底座筒形件,采用铲旋成形工艺对筒体成形质量及模具力能参数开展研究。通过选取起旋量、进给速度及主轴转速等关键工艺参数,分析了旋轮圆角处的应变大小、筒壁平均应变以及成形过程中的成形载荷特性。结果表明:各工艺参数对成形质量具有显著影响。起旋量超过坯料厚度的30%时,工艺难以完成;旋轮圆角处的应变随进给速度和主轴转速的增大呈现先增后减的趋势;成形载荷随进给速度的变化呈现先减小后增大的规律,并随主轴转速和起旋量的增大而显著增大。通过模拟与实验对比验证了参数优化的有效性,并进一步开展不同起旋量条件下的实验分析,为带法兰筒形件的高质量成形工艺优化提供参考。

       

      Abstract: For aluminum alloy cylindrical parts with flanged bases, the shovel spinning process was adopted to study the forming quality of the cylindrical part and the energy and force parameters of the die. By selecting key process parameters such as shovel reduction ratio, feed rate, and mandrel speed, the strain at the roller nose, the average strain of the cylindrical part, and the forming load during the process were analyzed. The results demonstrate that these process parameters significantly influence the forming quality. When the shovel reduction ratio exceeds 30% of the blank thickness, the process becomes infeasible. The strain at the roller nose increases first and then decreases with the feed rate and mandrel speed. The forming load decreases initially and then increases with the feed rate, while it increases significantly with the mandrel speed and shovel reduction ratio. Simulation and experimental comparisons verified the effectiveness of parameter optimization.Further experimental analysis under different shovel reduction ratio provides valuable references for optimizing the high-quality forming process of flanged cylindrical parts.

       

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