b'The pinch/peel process was used peel grinding software is years andfor nonround grinding technology to grind these nonround carbideyears ahead of competitors be- remains in effect.punches resembling buildings alongcause of the companys lengthy ex- So nobody can do nonround New York Citys skyline. perience with the technology. grinding the way we do it, Schwar-He also said Rollomatics patentzenbach said.CTEnonround grinding.Thanks to the increased accu-racy made possible by direct-drive technology, he said nonround parts made by the NP50 lack the transi-tion lines visible on components made with the belt-driven system. Since theres no need to slow down the process to deal with appear-ance-marring lines, the NP50 can complete nonround grinding 20% to 30% faster than belt-driven coun-terparts, he said.In addition, both round and non-round parts produced by the pro-cess benefit from a switch from asynchronous to synchronous mo-tors. Schwarzenbach said synchro-nous motors provide constant spin-dle rpm that increases grinding ac-curacy and produce a much more efficient torque curve than regular asynchronous motors. PERFORMANCE To get the best performance from the NP50, he recommends using aREVOLUTIONgood chilled coolant oil, as well as top-notch dressing and balancing machines for the wheels. Norton Quantum Prime is a prime Since Rollomatics patent for pinch/ example of optimized performance peel grinding expired, other machinefrom the worldwide leader in bonded tool builders around the world haveabrasive grinding wheels. Thanks to the unique micro-fracture incorporated that technology intoproperties of the new their products. However, Schwar- proprietary, nano-crystalline zenbach said Rollomatics pinch/ ceramic grain, Quantum Prime delivers excellent grinding efficiency, significantly longer wheel life, while ensuring about the authoroutstanding part quality.William Leventon is a contributing writer for CTE. Contact him at 609-920-3335LEARN MORE ATor wleventon@ HTTPS://NORTONSGA.US/QUANTUMPRIMESaint-Gobaingmail.com.ctemag.com/cteguide.com9MachineTech.indd 9 6/17/21 10:22 AM'