SHOP SOLUTIONS Continued from P54
these issues before they get out to the machine, and deliver a better product to the shop floor.”
As a certified ISO 13485:2003 and FDA-compliant sup-
plier, UMC must adhere to rigid quality requirements. One of these is the need to submit a PPAP (Production Part Approval Process) on any new projects, and adhere to that process thereafter. Gone are the days of taking on a job and continuously tweaking it to improve part profitability and tool life. Because there’s only one shot to make it right, it’s impor- tant to lead with your best machining foot forward, some- thing Vericut has helped UMC with time and again. “We have some customers where, once the process is
bought off, that’s it. No more changes,” Lahr said. “The AUTO- DIFF feature in Vericut checks for various conditions by compar- ing the design model against the actual cut stock model. Did we hit all the features? Is there any gouging of the workpiece, or leftover material that shouldn’t be there? Most importantly, did we violate the customer model? If so, what can we do about it?” UMC also uses CGTech’s OptiPath module, which as its name implies looks at toolpaths and optimizes them using pre-defined volume and chipload parameters, speeding up where possible and slowing down when necessary to avoid chatter, broken tools, and bad parts. Together with AUTO- DIFF, UMC can be confident the initial part process is a good one, and there won’t be embarrassing post-PPAP calls to the customer to request a deviation. As with Computape, UMC also uses the Vericut Reviewer, except in UMC’s case it’s for the company’s internal custom- ers: the machinists and engineers. “Our machinists review the Vericut file when they’re setting up a job,” said Lahr. “It helps them visualize the machining process and identify which tool is cutting each part feature. They can measure the part in Vericut for comparison against the actual workpiece and quickly iden- tify which offsets need adjusting. It really narrows down what steps have to be taken when troubleshooting a problem.” Looking back over the past nine years, about the only thing Lahr and Triplett would change is the implementation. “We probably should have started on a simpler machine,” Triplett said. “The NTX has two spindles, two turrets, a B-axis milling head and live tooling. There’s just a lot going on at one time. Learning Vericut on a machining center or two-axis lathe would have given us a better understanding of its capa- bilities earlier on, and made for fewer sleepless nights. Even so, we got through it just fine. It’s an awesome product.” For more information from CGTech, go to
www.cgtech. com, or phone 949-753-1050.
Continued from P45
CNC Makes Grinder Rebuild Look Easy
“W
hen ASB Industries called us with a rebuild ap- plication for a Mesta Roll Grinder with a 60" [1.5-m] swing and 288" [7.3 m] between centers, we knew we were going to be stepping it up a notch or two on this job,” said Jim Leigh, Pyramid Rebuild & Machine LLC (Tallmadge, OH). As it turns out Barberton, Ohio-based ASB Industries, a lead- ing single-source provider of cold spray and thermal spray industrial coating services, needed the machine for preci- sion pre- and post-machining preparation work for a thermal spray coating process. ASB required more than just accu- racy, it requires proof of accuracy.
One of the many industries ASB Industries serves requires precision grinding with complex crowns to achieve a very high
Full Grip Jaws
• Aluminum, Steel, or Cast Iron - diameter size range from 6-inch to 36-inch
• Jaw heights range: 2-inch, 4-inch, and 6-inch • Close tolerances and concentricity easily maintained. • Allows for complete gripping of the work piece • Special oversized jaws available • Excellent for gripping thin-walled parts without distortion
• Machine and tool life extended due to lighter weight jaws, reducing mechanical stress.
• Made in the USA
ISO 9001:2008 DillonManufacturing, Inc.
Phone: 1-800-428-1133 | Fax: 1-800-634-6480 | Email:
sales4@dillonmfg.com |
www.dillonmfg.com
November 2015 |
AdvancedManufacturing.org 95
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