Influence of Chatter on Machining Distortion for Thin-Walled Component Peripheral Milling

In specific industrial applications like very thin-walled aeronautical structures or turbine blades, workpiece vibration is strongly dominant in comparison with spindle-tool set vibration. A method for predicting the dynamic stable lobe diagram (DSLD) of thin-walled component peripheral milling process is proposed, which takes into account the variations of dynamic characteristics of workpiece with the tool position. A specific DSLD is elaborated by scanning the dynamic properties of workpiece along the machined direction throughout the machining process. And, based on the results of stability prediction for thin-walled component milling, influences of chatter on machining distortion (including cutting distortion and secular distortion) are investigated through specifying cutting conditions. Then these results are compared and verified by milling experiments.

Abstract licence: CC BY

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