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首页> 外文期刊>The International Journal of Advanced Manufacturing Technology >Practical approach of simultaneous optimization of variable blank holder force and variable slide velocity trajectory in sheet metal forming
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Practical approach of simultaneous optimization of variable blank holder force and variable slide velocity trajectory in sheet metal forming

机译：钣金成形中可变空白夹持力和可变滑动速度轨迹同时优化的实用方法

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摘要

Variable blank holder force (VBHF) that the blank holder force varies through the stroke is recognized as one of the advanced manufacturing technologies for sheet metal forming. On the other hand, slide velocity (SV) that controls the die velocity is rarely discussed in the literature. In particular, variable SV (VSV) that the SV varies through the forming process is an attractive forming technique for improving the product quality and the productivity. This paper proposes a practical approach of optimization of VBHF and VSV trajectory for sheet forming. First, based on the experimental result, the finite element analysis model is developed. Then, a multi-objective design optimization considering the product quality and the productivity is performed. A sequential approximate optimization that response surface is repeatedly constructed and optimized is adopted to identify the pareto-frontier. Three points on the pareto-frontier are selected, and the experiment using the servo press (H1F200-2, Komatsu Industries, Corp.) is conducted. Through the comparison of numerical and experimental results, the validity of the proposed approach is examined.
机译：空白夹持器力通过行程变化的可变空白保持力（VBHF）被识别为金属板成形的先进制造技术之一。另一方面，在文献中很少讨论控制模速度的滑动速度（SV）。特别是，SV通过成形过程变化的可变SV（VSV）是用于提高产品质量和生产率的有吸引力的成型技术。本文提出了一种实用的vbHF和VSV轨迹的实用方法。首先，基于实验结果，开发了有限元分析模型。然后，考虑产品质量和生产率的多目标设计优化。采用响应表面重复构造和优化的顺序近似优化来识别帕累托 - 边界。选择了帕累托 - 前沿的三个点，并进行了使用伺服压力机（H1F200-2，Komatsu Industries，Corp.）的实验。通过对数值和实验结果的比较，研究了所提出的方法的有效性。

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