极限半锥角及层间距对板料渐进成形质量影响的研究
Effects of Limited Half-cone Angle and Interlayer Spacing on Quality of Incremental Sheet Metal Forming
周 杰1， 彭守桃1， 张 旭1， 王卫生2
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作者单位：（1.重庆大学 材料科学与工程学院，重庆400044；2.联伟汽车零部件有限责任公司,重庆 400044）
中文关键字：金属板料；渐进成形；变形；成形极限半锥角
英文关键字：metal sheet; incremental forming; deformation; forming limited half-cone angle
中文摘要：金属板料渐进成形工艺是一种基于数控技术，靠逐点成形板料零件的柔性加工工艺。通过实验分析，以及对金属板料渐进成形工艺的变形机理、极限半锥角等方面的研究，提出金属板料靠逐次的变形累积产生整体的变形，极限半锥角不仅与材料有关而且与材料厚度有关；层间距对极限半锥角影响不大，而与零件表面质量有关，层间距越小，零件表面越光滑。
英文摘要：The incremental sheet parts forming process is a flexible process which forms the sheet point by point based on numerical control technology. The forming principle of incremental sheet mental parts forming process, the limited half-cone angle and so on were presented through experimental analysis. It is proposed that the sheet metal forming point by point leads to the whole sheet deformation. The limited half-cone angle is related not only to the material but also to the thickness of the metal sheet. The interlayer spacing has not great impact on the limited half-cone angle, it relates to the part's surface quality, and with the decrease of interlayer space, the part's surface quality gets finer.