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首页> 外文会议>ASME international manufacturing science and engineering conference 2011 >IMPROVEMENT OF GEOMETRIC ACCURACY IN INCREMENTAL FORMING BY USING A SQUEEZING TOOLPATH STRATEGY WITH TWO FORMING TOOLS
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IMPROVEMENT OF GEOMETRIC ACCURACY IN INCREMENTAL FORMING BY USING A SQUEEZING TOOLPATH STRATEGY WITH TWO FORMING TOOLS

机译：通过使用两种成形工具的挤压刀具路径策略来改进增量成形中的几何精度

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Single Point Incremental Forming (SPIF) is plagued by an unavoidable and unintended bending in the region of the sheet between the current tool position and the fixture, which leads to significant geometric inaccuracies. Double Sided Incremental Forming (DSIF) uses two tools, one on each side of the sheet to form the sheet into the desired shape. This work explores the capabilities of DSIF in terms of improving the geometric accuracy as compared to SPIF by using a novel toolpath strategy in which the sheet is locally squeezed between the two tools. Experiments and simulations are performed to show that this strategy can improve the geometric accuracy of the component significantly. An examination of the forming forces indicates that after a certain amount of deformation using this strategy a loss of contact occurs between the bottom tool and the sheet. The effects of this on the geometric accuracy are discussed as well.
机译：单点增量成型（SPIF）受当前工具位置和固定装置之间的板材区域中不可避免的，意想不到的弯曲困扰，这会导致明显的几何误差。双面增量成型（DSIF）使用两种工具，在薄片的每一侧各使用一个工具将薄片成型为所需的形状。这项工作通过使用一种新颖的刀具路径策略（其中在两个刀具之间局部挤压板材）探索了DSIF与SPIF相比在改善几何精度方面的功能。实验和仿真表明，该策略可以显着提高组件的几何精度。对成形力的检查表明，使用该策略一定程度的变形后，底部工具和板材之间会失去接触。还讨论了这对几何精度的影响。

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