b'Green Means Go There are even more advantagesan important role. Designs that use for boring bars, which can be moreloose parts like pins can mean more time-consuming because of centerfumbling with changes and less ac-have fast tool indexing, but theyheight setting and coolant plumb- curacy. And couplings that rely on often have lower utilization thaning. With a quick-change solution,moving parts like ball bearings may machining centers because of thethey could be changed in less thanwear out more quickly.time that it takes for setup and toola minute, with better accuracy. The coupling design in Sandvik changes. Here, quick-change solu- But how do you achieve theseCoromants Capto system, for ex-tions can make a big impact on uti- advantages? There are a numberample, uses a triangular polygon lization by dramatically reducingof features to look for in a quick- shape with a tapered contact sur-changeout times. Swapping turn- change solution that will ensureface for quick, accurate positioning ing tools may go from 10 minutes tofastertoolchangesandsetupwithin 2 . The coupling locks into 30 seconds, and driven tools mighttimes. The stability and sophisti- place and centers itself by locating go from 20 minutes to 30 seconds.cation of the coupling design playoff of the three polygon lobes. The With advances in quick-change design, toolholders can use high-pressure jets to deliver coolant, which not only cools the cutting tip but helps break chips and improve chip evacuation.Sandvik Coromant24JULY 2023QuickChange.indd 24 6/15/23 12:37 PM'