Reducing set-up times at job shop

When San Antonio-based job shop Anthony Machine purchased a pair of NLX 3000 1250 universal turning centres from CNC machine builder DMG Mori – the company’s first Y-axis, live-tool lathes – the team was challenged with making the most of its new investment.

Long-term tooling partner Kennametal explained to Anthony that the best way to reduce set-up times and maximise the new machines’ potential would be to equip them with Turret Adapted Clamping Units (TACU) and KM-series quick-change tool holders.
According to Anthony Machine manufacturing technologist Daniel Goller, the decision to adopt TACU and KM for the new machines was an easy one. “Over the years, we’ve built a number of KM-equipped custom tool holders for deep boring and other machining operations on our CNC lathes and machining centres, and we use Kennametal on several of the shop’s manual turret lathes to overcome limitations with available tool positions. On more than one occasion, we’ve earned new business because KM was able to achieve tolerances and surface finishes that others couldn’t do with conventional tooling.”
Anthony’s operations manager Mohsen Saleh agrees: “The differences are striking. Compared to the traditional wedge and screw-style blocks that come standard on most machines, the KM-equipped TACU units are both faster and more accurate. We routinely hold tolerances of 0.013 mm and I’m told that part size doesn’t change from one clamping to the next. The turret’s less crowded, everything’s easier to get at, and you don’t have the chatter and deflection that you often find with your typical straight shank tools and set-screw type boring bar holders.”
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