Abstract

Curved toolpaths challengeaccurateelectrochemical jet processingdue toresulting distortion of the cut profile. A more elaborate path planning approach is required to mitigate these negative effects. A3-dimensional process model is presented here,to predictthe resulting surface geometry.This is applied to simulate machining of curved channelsand calculate optimised feed rates forlocations of the toolpath with impairedgeometry. Through the presented predictive planning methodology, achieved depthsof curved sections of the machined channels werewithin 10.5%of the depth for straight sections, compared to up to 62.2%increasewhen feed rate compensation was not applied.

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