Repairing Technology of Blade Surface Chatter Mark Based on Tolerance Constraint
In this paper,a large fan titanium alloy blisk blade is selected as the carrier,a method of repairing chatter mark on the blade surface is carried out based on tolerance constraints to solve the problem of chatter mark,which is caused by tool damage,chipping and vibration during the process of a large fan titanium alloy blisk blade machining.Furthermore,solutions of milling machining and repairing blisk blade chatter mark,by abstracting chatter mark borders,programming measure program through quadruple section lines based on chatter mark location,bidirectional offsetting online measuring section lines based on tolerance constraint,reconstructing chatter mark machining surfaces based on offsetting curves,recal-culating chatter mark machining program and compensation machining are proposed and verified.According to the results of machined blisk blades,the method improves significantly the machining quality of blisk blades,such as repairing blade chatter mark due to tool chipping,avoiding the scraping problem of chatter mark.
integral blisk bladetolerance constraintrepairing chatter mark
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