Modeling and avoidance of static form errors in peripheral milling of plates

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• 作者：Budak ; Erhan ; Altintas ; Yusuf
• 刊名：International Journal of Machine Tools and Manufacture
• 出版年：1995
• 出版时间：March, 1995
• 年：1995
• 卷：35
• 期：3
• 页码：459-476
• 全文大小：997 K

文摘

Peripheral milling of very flexible, cantilevered plates with slender end mills is modeled. The plate has varying structural properties in the axial and feed directions due to metal removal. The cutter is modeled as a cantilevered continuous elastic beam with flexible clamping in the collet. The plate structural properties are updated using the finite element technique as the cutter and plate interact at changing contact zones along the feed direction. The analytical cutting force and surface generation model considers partial separation of tool and plate structures due to static displacements. The experimentally verified model predicts the cutting forces and dimensional surface error on the plate. The model identifies the required feed variation along the plate in order to keep the static form errors within the specified tolerance of the part. The model is developed to improve dimensional accuracy in peripheral milling of very flexible aerospace components.