The EC-630PP HMC - Haas - Haas Automation, Inc.

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Wal k-Away Machining The Haas VS-3 that’s milling the large stabilizer was bought specifically to replace a manual horizontal machine that Stabil had owned for years. “The VS-3 is much easier to use, and that makes a big difference in our efficiency,” McJimsey declares. “Milling the blades in 3D instead of cutting pockets with a large shaped tool, as we had to do before, steps up everything. “Simultaneous 4th-axis machining is a much better way to do this type of job. The spirals are completely uniform, and the total time is greatly reduced,” McJimsey continues. “Instead of taking 30 to 34 hours to machine, we’ll now cut the largest units in 12 to 14 hours! Since one guy can easily run two mills at once (each with two-and-a-half times the efficiency), we’re actually looking at a five-fold increase in productivity!” Because the cycle times on the 3D parts are long, the machinists are able to push Cycle Start on the Haas machines and walk away to do other jobs. Stabil Drill uses the newest ceramic cutting-tool technology that has inserts set at a flatter angle. Instead of 6 | www.HaasCNC.com cutting with just the edge of the insert, they’re efficiently cutting the hardened steel forgings with the entire land. The tooling is cooled with through-spindle air instead of liquid coolant, to reduce the risk of thermal shock to the cutting edge. The high-tech inserts still require some attention and periodic replacement, but the ability to program and maintain consistent feedrates and spindle loads on the Haas control allows the machinists to run at 250 ipm without worrying about pushing the inserts to failure. In the end, Stabil saves time and money, because the inserts need replacing far less often. The CNC Transition The new VS-3 is Stabil Drill’s third Haas vertical machining center. They’ve used their VF-9 and VF-11 to produce slightly less-enormous tools for the last two years. “Currently, I have all the Haas CNCs here in the production shop,” says McJimsey, “and we’re about to order more to keep up with demand. But our rental department shop is still all manual, due to the large volume of repair
“As wells go deeper, their upper casings get bigger – and so do the stabilizers we make.” work they do to used tools. That’s going to have to change,” he predicts. “The labor pool here is barely large enough to support us at our current level. Experienced manual machinists are getting hard to find. “We’re training most of the new workers ourselves,” McJimsey continues. “They’re students with good math and mechanical abilities who aren’t interested in college, but are interested in this industry – once they find out that modern CNC machinists don’t swing hammers and crank handles all day. The PlayStation® generation wants to play with computers. CNC is the definite future here.” Stabil Drill www.stabildrill.com CNC MACHINING | 7
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The EC-630PP HMC - Haas - Haas Automation, Inc.

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