SHOP SOLUTIONS
Left and right ultrasonic test parts on the fi nished parts at Bemis Mfg. Each is a mirror image of the other.
to create toolpaths for machining three more bosses and a hole pattern to complete the front side of the EOAT. Then he programmed another boss, a surface milling operation on a contoured surface, three pockets and two holes on the back side of the EOAT. Even though he had simulated each of the individual machining operations, when he had fi nished programming all of the machin- ing operations, he simulated the machin- ing of the complete part as a fi nal check and to be sure that none of the individual operations interfered with each other. With the right-hand EOAT tooling completed, Littlejohn programmed the left-hand EOAT simply by mirror-imaging the program with a few mouse clicks. Finally he generated G- code to run both programs on a Haas TM-1 machining center. The programs worked perfectly the fi rst time they were run, making
it possible to complete programming and machining for both EOAT’s within a single day. “FeatureCAM CNC software has substantially reduced
the time required to create the typical program to about two hours,” Littlejohn said. “Key advantages of FeatureCAM include its ability to import solid models from CAD software, automatically identify features in the model, and store com- mon machining operations so that they can be applied to the part geometry with a few clicks. “We couldn’t have produced these EOATs using our
previous CNC programming software because it is unable to program 3D surface milling operations,” Littlejohn said. “But even if it could have done that operation it would have taken at least eight hours to program the part. FeatureCAM, on the other hand, made it possible to completely program both left and right-hand EOATs in just two hours. The ability to import solid geometry and recognize features makes the CNC pro- gramming process nearly seamless. The ability to simulate individual operations as well as the complete part has nearly eliminated errors and crashes. A key to our success with the software is that FeatureCAM is very intuitive. We have also received excellent technical support from Automated Solutions Inc., the FeatureCAM integrator from whom we purchased the software,” said Littlejohn. For more information from Delcam, go to
www.delcam.com, or phone 877-335-2261.
94
AdvancedManufacturing.org | June 2015
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