Control system boosts machining rates
Posted on 31 Mar 2014 and read 823 times
MACH will see the first UK public showing of Heidenhain’s TNC control system developments of Dynamic Efficiency and Dynamic Precision; they feature innovative control system functionality that provides faster, more stable and more predictable machining, together with a claimed 20-25% improvement in heavy-machining metal removal rates, as well as higher levels of surface finish and accuracy (Hall 5 Stand 5648).
Available from Burgess Hill-based Heidenhain (GB) Ltd (
www.heidenhain.co.uk), Dynamic Efficiency functionality combines effective control routines with intelligent machining strategies, while also exploiting the machine’s full potential and simultaneously limiting mechanical loads by integrating the TNC control system functionality of: adaptive feed control (to optimise feed rates depending on machining conditions); active chatter control (to reduce chatter and thus permit the use of higher feed rates); and trochoidal milling (this accelerates the roughing of slots and pockets).
The complementary Dynamic Precision functionality is designed to combat machining errors caused by dynamic machine movement; it improves machining accuracy via a combination of ‘cross-talk’ compensation, active vibration damping and ‘load motion and position adaptive control’.
The Dynamic Precision functionality effectively measures any errors (at the tool centre point) and simultaneously compensates for them via: CTC (compensation of acceleration-dependent position errors); AVD (active vibration compensation); PAC (position-dependent adaptation of control parameters); LAC (load-dependent adaptation); and MAC (motion-dependent adaptation). Also on display will be Heidenhain’s TNC 640, 620 and 320 control systems.