ボクセルモデルを用いた切削シミュレーションにおける微小時間および微小空間解析の高速処理手法

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タイトル別名
  • High Speed Computational Algorithm in Voxel Based Milling Process Simulation for Minute Time and Minute Space Resolution Analysis
  • ボクセル モデル オ モチイタ セッサク シミュレーション ニ オケル ビショウ ジカン オヨビ ビショウ クウカン カイセキ ノ コウソク ショリ シュホウ

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抄録

<p>In order to improve machining efficiency, it is required to recognize machining status and optimize cutting conditions. Cutting force is meaningful information to recognize machining status. In the instantaneous rigid force model, which is the most popular model for milling force prediction, milling force is calculated based on the geometrical intersection between cutting edge and workpiece for each feed per tooth. In this model, both of static tool deflection and tool dynamic vibration are not considered. In order to overcome this problem, a new high speed computational algorithm in our voxel based milling process simulation is proposed. The proposed algorithm permits to consider both of static tool deflection and tool dynamic vibration in our voxel based milling process simulation. In the proposed algorithm, the intersection between cutting edge and workpiece is calculated in each minute time interval or minute tool rotational angle interval. Furthermore, the proposed algorithm permits to shorten the computational time of detecting removal voxels to calculate uncut chip thickness discretely. Therefore, high precision analysis can be performed in minute space resolution. The effectiveness of the proposed algorithm is validated by experimental 3-axis milling tests. Predicted milling forces under several cutting conditions have good agreement with the measured milling forces.</p>

収録刊行物

  • 精密工学会誌

    精密工学会誌 84 (2), 175-181, 2018

    公益社団法人 精密工学会

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