METHOD TO PROCESS FREE-FORM SURFACE INTO LONG MATERIAL

To provide a method to process a free-form surface into a long material improving accuracy of final finished state of a product that the free-form surface is processed into the long material.SOLUTION: After processing of a free-form surface into a long material 1 with a state that a convex part 3 an...

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Hauptverfasser: NAKANISHI TAKUYA, SHIMIZU NOBUO, ASAKA HARUHIKO, MATANO KAZUYA
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a method to process a free-form surface into a long material improving accuracy of final finished state of a product that the free-form surface is processed into the long material.SOLUTION: After processing of a free-form surface into a long material 1 with a state that a convex part 3 and a wing root 4 are held, the convex part 3 shifts from a held position A to a position B where distortion is released because the whole long material 1 deforms when the distortion in process is released by releasing the holding of the convex part 3. A re-holding position C that is a position correcting the position B with the deformation of the long material 1 by the tare weight of the long material 1 is determined, the convex part 3 is held again at the re-holding position C, and the free-form surface is processed again to the long material 1.SELECTED DRAWING: Figure 5 【課題】長尺材に自由曲面が加工された製品の最終仕上がり状態の精度を向上させた長尺材に自由曲面を加工する方法を提供する。【解決手段】凸部3及び翼根4を把持した状態で長尺材1に自由曲面を加工した後、凸部3の把持を解放することによって加工時の歪みが解放されるときに長尺材1全体が変形することにより、凸部3は、把持されていた位置Aから歪みが解放された位置Bに移動する。位置Bを長尺材1の自重による長尺材1の変形量で補正した位置である再把持位置Cを決定し、再把持位置Cで凸部3を再把持し、長尺材1に再び自由曲面を加工する。【選択図】図5