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首页> 外文会议>60th Electric Furnace Conference Nov 10-13, 2002 San Antonio, Texas >MAKING ROUND BARS WITH FLAT DIES USING SIX SIGMA TECHNIQUES TO FIGHT THE BATTLE OF THE BULGE
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MAKING ROUND BARS WITH FLAT DIES USING SIX SIGMA TECHNIQUES TO FIGHT THE BATTLE OF THE BULGE

机译：使用六种SIGMA技术制造带有扁模的圆棒以对抗凸点的战斗

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The Six Sigma process was used to improve the shape accuracy of polygons pressed using flat dies. An 80% reduction in defect rate was achieved. There were several lessons learned in this project. What was once thought of as a size problem was isolated and determined to really be a shape problem. Adjusting the size within the press procedure can control the shape of the billet. Improving the shape of the billet using flat dies is possible and can result in elimination of hidden cost (downstream process efficiency improvements by not having to reshape). The final part of the Six Sigma process was to incorporate the findings of this experiment into other processes by way of leveraging. The procedure was documented and the experiment will be repeated with other alloys. These other alloys may have different deformation characteristics so a different bulge anticipation factor may be needed to optimize the process.
机译：六西格玛（Six Sigma）工艺用于提高使用平模压制的多边形的形状精度。缺陷率降低了80％。在这个项目中吸取了一些教训。曾经被认为是尺寸问题的东西被隔离出来并确定为真正的形状问题。在压制过程中调整尺寸可以控制坯料的形状。使用平模改善坯料的形状是可能的，并且可以消除隐性成本（无需重新塑形即可提高下游工艺效率）。六西格玛过程的最后一部分是通过利用杠杆作用将该实验的发现整合到其他过程中。该程序已记录在案，并将对其他合金重复该实验。这些其他合金可能具有不同的变形特性，因此可能需要不同的凸起预期因子来优化工艺。

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