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STEP-NC a new language for CNC machining and measurement

STEP-NC a new language for CNC machining and measurement. Martin Hardwick STEP Tools, Inc. hardwick@steptools.com 518 687-2848 x 306. Why STEP-NC. New information to make machining faster and more accurate Supply chain interoperability On machine feed-speed/tool-wear optimization

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STEP-NC a new language for CNC machining and measurement

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  1. STEP-NC a new language for CNC machining and measurement Martin Hardwick STEP Tools, Inc. hardwick@steptools.com 518 687-2848 x 306

  2. Why STEP-NC • New information to make machining faster and more accurate • Supply chain interoperability • On machine feed-speed/tool-wear optimization • On machine simulation and collision detection • Closed loop machining and measurement STEP-NC STEP CAD CAM CNC Design Plan Machine

  3. The STEP-NC Concept STEP-NC AP-238 • New programming concepts • Workingsteps define operations • CAD tolerances define quality • CAM tool paths define control AB Tool Tilt BC Table Tilt

  4. The STEP-NC Model as workpiece, stock, fixture, or tool shape geometry tolerance property executable workpiece workplan, if/then, parallel, … S[0:?] machining_feature machining_workingstep geometry pocket, plane, hole, region, S[0:?] probe machining_operation plane milling, side milling, drilling, technology machine functions L[0:?] path geometry cross section feed override strategy toolpath ISO 13399 tool database tool cutter location trajectory, cutter contact trajectory

  5. How to implement? • Add STEP export to your CAD systems. • Purchase tools to build STEP-NC data • Convert APT or MCD data • Integrate with CAD data • Verify machining processes • Purchase tools to make CNC operation more efficient • Automated feed-speed optimization • Automated measurement • Automated tool path correction

  6. STEP-NC Explorer • Integrate data from multiple data sources • Optimize machining on the control CAD CNC “The STEP-NC Explorer is a prototype system for creating, managing and optimizing STEP –NC data” STEP-NC Explorer CAM PDM

  7. Impeller Roughing

  8. Impeller - Finishing

  9. Impeller Inspection

  10. Tolerance Evaluation

  11. Simulation

  12. Cutting tools

  13. Control Machining

  14. Business Benefits • 15% faster machining • TBD% fewer mistakes • TBD% more data reuse • TBD% more accurate machining

  15. New since Sandvik • Accelerated data reuse using toolpath orientation • As-is, to-be and delta models for executables • AP-203 & ISO 13399 models for cutting tools • More robust graphics • More robust simulation • More viewing options • More export control options

  16. Goals for this meeting • Show feed speed optimization • Show closed loop machining • Rough machine • Finish machine one blade • Measure using Faro arm • Generate corrected tool paths • Machine remaining blades • Perform final quality check on CMM • Estimate benefits

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