Investigation of moving fixture on deformation suppression during milling process of thin-walled structures

Abstract

Dynamic deformation of the thin-walled structures during milling process will influence the machining accuracy and surface quality of the final component. Present paper is concerned with deformation suppression by proposing a new method, which is realized by supporting a fixture element at the projection area of the tool-workpiece contact zone on back surface of the workpiece. During milling, the fixture element will move with the milling cutter at the same velocity. A dynamic model of the new cutter-workpiece-fixture system is constructed to analyze the workpiece deformation. A machining case is implemented to demonstrate the effectiveness and feasibility of the proposed method and model.