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STEP-NC Manufacturing Meeting: May 14, 15, 18, 19, 20

Attend the manufacturing meetings in Renton, Kirkland, and Parksville to see machining demonstrations, touch probe and laser scan measurements, and learn about the implementation of STEP-NC in industry.

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STEP-NC Manufacturing Meeting: May 14, 15, 18, 19, 20

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  1. T24 STEP-Manufacturing MeetingBoeing Renton – May 14Mitutoyo Kirkland – May 15SC4 Parksville – May 18, 19, 20 Machining demonstrations at Renton Touch Probe and Laser Scan measurements at Kirkland Technical Meetings at SC4

  2. Attendees

  3. Meeting goals • Have multiple sites machine the same part from the same AP-238 data • Find the issues • Fix the problems • Show AP-238 can be used for molds • Large program files • Short moves • High surface finish

  4. Summary of accomplishments • Fanuc implementation of AP-238 STEP-NC • AP-203 e2 annotation tolerances read from Catia • Measured at Mitutoyo using laser scanner and touch probe • Moldy parts made from AP-238 data • Boeing, USA • NIST, USA • CCAT, USA • Al’s Rod shop, USA • KTH, Sweden • Scania, Sweden • U. Bath, UK

  5. Results

  6. Next steps • Lessons learned • We need to use chip load to drive speed and feed Programmed Machine Max Feed and Speed Actual Machine Max Feed and Speed Feed Feed CAM AP-238 Speed Speed Actual No. Flutes Programmed No. Flutes

  7. Next steps • Lessons learned • We need to change tool dimensions • More data about the tools • Stick–out (holder_base – tool_tip) – LUX in ISO 13399 • Minimum allowable flute length – max_depth_of_cut • Tool holder dimensions • Need more / clearer set-up information • Origin, material • As part of rawpiece definition? • Variable elements that are realistic to change • Utility to extract tool dimensions

  8. Goals for next demonstration • What • Enable/Show round trip • Mastercam ->AP-238-> Catia ->AP-238 -> FeatureCAM • Multiple set-ups • Use Moldy again • Improve documentation so more can participate • Setup information – annotate origin • Tool stick-out, #flutes, flute length • Max feed and speed • Operation cycles for drilling • Participation Rules • Must be from single STEP-NC data source • Must meet tolerances defined for the part • Develop new part – Boxy • Test/Prove-out multiple setup • Accuracy, documentation, canned cycles

  9. Moldy in Bath • Faster machining by changing step over • Metric – 3 axis • Improve portability • Feed speed approximation using spindle power • Eliminate ¾ inch zero radius cutter • Single hole size • Describe most accurate process • Describe required tolerances • Describe process parameters such as peck cycles • One hole size = 0.25 inch aka 6.35 mm • Tell users they can reduce the process if they maintain the tolerances

  10. Moldy Deadlines • CAD/CAM deadline - May 29th • Development Partners* commit – June 1st • First machining – June 15th • Machining Partners** commit – July 1st • Machining deadline - August 1st • Touch Probe results - September 4th *Development partners are organizations with STEP-NC Experience **Machining partners are new to STEP-NC

  11. Boxy in Bath • Use multiple CAM systems to make data • Mastercam for setup 1 and 4 • Catia for setup 2 • FeatureCAM for setup 3 • Practice multiple setups • Communicate origin to operators • Metric part and tooling • Tolerances on each part for each set-up • Different CAM for each setup • Four setups • No tool larger than 12mm

  12. Boxy Deadlines CAD deadline - June 15th Setup 1 CAD model – KTH Mastercam Setup 2 CAD model – Boeing Catia Setup 3 CAD model – U.Bath FeatureCAM Setup 4 CAD model – KTH Mastercam Development partners commit – June 15th CAM deadline – July 1st Assembled data deadline – July 15th Machining partners commit – August 1st Machining – September 15th

  13. Anticipated Participants • NIST • Boeing • CCAT • KTH • Scania • U.Bath • Al’s Rod shop • Naval shipyards • Sandvik Coromant • GE Fanuc • Mitutoyo • Helical

  14. Targeted Participants • Rolls Royce – Aydin • Siemens - Stephen • U.Manchester - Stephen • Airbus – Martin • French Universities Paul Sabitier (via Alain), U.Metz (Aydin), U.Bordeaux (via Alain) • Spirit (formerly Boeing Wichita) – David O • German Universities (Aachen, Stuttgart) - Stephen • Okuma – David O • Fatronik (machine tool company) - Aydin • MCM (controller company) - Aydin • Volvo - Magnus • Saab aerostructures - Mikael • Swiss Universities (EPFL) – Stephen • Korea Universities (Postech) – Stephen • Mitsibushi – David O.

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