Integration of micro milling highspeed spindle on a microEDM-milling machine set-up

In order to cope with repositioning errors and to combine the fast removal rate of micro milling with the precision and small feature size achievable with micro EDM milling, a hybrid micro-milling and micro-EDM milling centre was built and tested. The aim was to build an affordable set-up, easy to use and adapt to an existing device, not to build a complete new machine.

The design requirements will be presented and the set-up described. A geometrical model of the set-up following the small displacement torsor concept is proposed and verified by comparing a simulated and manufactured pocket done by micro milling. Examples of test parts are shown and used as an experimental validation.