Reverse Simulation of Sinking Electrical Discharge Machining

沉没放电加工的逆向模拟

• 批准号: 21360061
• 负责人: KUNIEDA Masanori
• 金额: $ 11.98万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360061/
• 关键词: 形彫り放電加工; 逆方向シミュレーション; 工具電極消耗; 加工屑; 放電遅れ時放電遅れ時間; 放電遅れ時間; 遥動加工; 加工精度; 加工間隙; 曲率; 放電点; ボクセルモデル

This study aimed to develop a reverse simulation method for sinking electrical discharge machining(EDM) which can obtain tool electrode shapes with which desired workpiece shapes can be machined precisely taking into consideration tool electrode wear. In the reverse simulation method developed, the tool electrode is machined using a workpiece with the same initial shape as the target workpiece shape, applying the discharge location search algorithm developed for forward simulation. The data on the removal volumes of the tool electrode and workpiece per pulse, obtained from experiments, was switched in reverse simulation. To compensate for error due to curvature, the removal volumes of the tool electrode and workpiece were divided and multiplied by the ratio of the workpiece area facing a unit area of the tool electrode respectively. Experimental results showed that the workpiece shape after actual machining using the tool electrode obtained from reverse simulation was closer to the target workpiece shape than when the tool electrode shape was obtained by offsetting the target workpiece shape at a distance equal to the gap width.

这项研究旨在开发一种逆向仿真方法，用于下沉电排放加工（EDM），该方法可以获得刀具电极形状，可以精确地考虑使用所需的工件形状，以便将其加工成刀具电极磨损。在开发的反向模拟方法中，工具电极是使用与目标工件形状相同的初始形状的工件加工的，应用了用于正向模拟的排放位置搜索算法。从实验中获得的每个脉冲的刀具电极和工件的去除量的数据进行了反向模拟。为了补偿由于曲率的误差，将刀具和工件的去除量分别由面向工具电极的单位面积的工件区域的比例进行了划分和乘以。实验结果表明，使用反向模拟获得的工具电极在实际加工后的工件形状比目标工具形状更接近目标工件形状，而不是通过将目标工件形状在等于间隙宽度的距离上取代而获得的刀具电极形状。

项目成果

放電遅れ時間に基づく放電点決定による形彫り放電加工シミュレーション

使用基于放电延迟时间确定放电点的冲模放电加工仿真

• 发表时间: 2009
• 作者: 森本賢治;国枝正典
• 通讯作者: 国枝正典

Reverse simulation of sinking EDM applicable to large curvatures

• DOI: 10.1016/j.precisioneng.2011.10.003
• 发表时间: 2012-04-01
• 期刊: PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
• 影响因子: 3.6
• 作者: Kunieda, Masanori;Kaneko, Yuki;Natsu, Wataru
• 通讯作者: Natsu, Wataru

形彫り放電加工における逆方向シミュレーションの原理の検証

电火花放电加工中反向模拟原理的验证

• 发表时间: 2009
• 作者: 金子勇基;国枝正典
• 通讯作者: 国枝正典

Reverse Simulation of Sinking EDM for Intricate Shapes

复杂形状的电火花加工逆向模拟

• 发表时间: 2010
• 作者: Yuki Kaneko;Masanori Kunieda
• 通讯作者: Masanori Kunieda

形彫り放電加工における逆方向シミュレーションの実験的検証

电火花放电加工反向模拟实验验证

• 作者: 森本賢治;国枝正典;金子勇基,夏恒,国枝正典
• 通讯作者: 金子勇基,夏恒,国枝正典