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Manufacturing Solutions

Manufacturing Solutions . John F Dobstetter Business Development Manager Direct Digital Manufacturing. Overview. Additive overview Tooling applications End use part applications T ooling for composites. Additive Mfg Sweet Spot. High Complexity, Low Quantity Specialty End Use Parts

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Manufacturing Solutions

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  1. Manufacturing Solutions John F Dobstetter Business Development Manager Direct Digital Manufacturing

  2. Overview • Additive overview • Tooling applications • End use part applications • Tooling for composites

  3. Additive Mfg Sweet Spot • High Complexity, Low Quantity • Specialty End Use Parts • Tooling! Additive Mfg Sweet Spot Additive Mfg Complexity Conventional Mfg Quantity Slide Style Credit to Paul Hauwiller of GDIT

  4. Product Lifecycle Applications Concept Models Access Concept Validation Assembly Simulation Prototypes Models Specialized Interface Models Functional Test Models Low Rate Manufacturing Tooling Rate Manufacturing Tooling Specialized Shop Aids Jigs & Fixtures End Use Parts Repair Jigs & Fixtures Repair Shop Aids Repair Tooling

  5. FDM Materials Strength vs Heat Deflection Flex Modulus vs Flex Strength 360 ULTEM 9085 350 400 PPSF 340 350 ABS ULTEM 9085 330 300 Flexural Modulus [KSI] Heat Deflection [˚F] PC PC-ISO PC 320 250 PPSF 310 200 PC-ISO ABS 300 150 10 18 6 8 12 14 16 5 7 8 9 10 Flexural Strength [KSI] Tensile Strength [KSI] @ AMB

  6. Metal Forming Tools US Naval Air Systems Command Depots Hydro Form Rubber Pad Stretch Form Tube Form

  7. Metal Forming

  8. Sand Casting:Application Overview Metal castings from sand molds • Many metal alloys • Small to very large castings • Pattern-based mold making • Matchplate, split and loose patterns • Gates & runners • Core boxes • Typically machined • Time & cost is dependent on complexity

  9. MelronCorporation:Sand Casting • Window and door hardware • Non-ferrous green sand casting • Design inserts for maximum load and impact • Matchplates previously machined • Cost was approximately $5,000 • Delivery lead time was 3-4 weeks • Now uses FDM matchplate inserts • FDM resists ramming forces used to pack sand • FDM also resists abrasion and chemicals (Top coat & mold releases) • Lower cost and shorter lead times • Cost reduced to $2,000 • Lead time reduced to 1-1/2 weeks

  10. Mold Tools High Temp Washout Core Molds Silicone Gasket Mold Reconfigurable Over Mold

  11. Injection Molds

  12. Injection Molds • Time saving: 700-1800% • Cost savings: • 43% over aluminum • 72% over steel

  13. Trim & Drill Tools Lockheed Martin Drill Tool Coordinated Tool Family With Drill Tool

  14. Thermoform Tools Tool Trials Production Complex Tooling

  15. Assembly Aids

  16. End Use Parts – Light Aircraft Picture courtesy of RapidPSI

  17. Unmanned Systems Pictures courtesy of Draganfly Pictures courtesy of Leptron Pictures courtesy of Embry-Riddle Picture courtesy of NEO S-300 VTOL UAV Swiss UAV GmbH

  18. FDM Composite Tooling

  19. Coordinated Tool Family Part CAD Model • Application • UAV wing box • Benefits • Scaled tool size and qty to meet rate demands • Digitally mastered tool family • Concurrent tool fabrication Trim Tool Drill Tool Model Based Definition Tooling CAD Models Lay Up Tool Consumable Core Co-Bond Tool Completed Cover Female Co-Bond Tool Finished Part

  20. Dynamic Flex Test Little Margin For Over Temp 180˚C (350˚F) 120˚C (250˚F) 37% 32% 79%

  21. FDM Material Application Map • SR100 Soluble Cores • ULTEM S1 Break Out Cores • Caution above 150˚C/300˚F Service Temp FDM Materials 200˚C (400˚F) Max 371˚C (700˚F)

  22. Soluble Cores • Dissolve FDM soluble core • WaterWorks bath solution • Heated tank ~ 140˚F (60˚C) • Agitation & circulation recommended • Rinse composite part • Duration is dependent on geometry • Compatible with most epoxy resins • WaterWorks has been demonstrated to attack some polyester resins • Tests to confirm resin compatibility are recommended

  23. Break Out Cores ULTEM S1 CORE Cured Part Finished Part • ULTEM S1 core compromised with acetone after cure • ULTEM S1 becomes brittle • Core is broken into pieces for removal

  24. Large Hybrid Cores • Mandrel Specifications • Hybrid mandrel • Aluminum main shaft • ~ 6’ (15.2cm) long x 9” (22.9cm) dia • FDM soluble core ends • 24” (61cm) diameter x 12” (30.5cm) tall • 12 lb normal load for tow winding • 200˚F (121˚C) Cure • Lessons Learned • Washout process is a design driver • Part rotation during cure evens out loads during cure cycle

  25. Hybrid Break Out Core • Aluminum/ULTEM-S1 Hybrid • Reusable aluminum sections • ULTEM-S1 trapped section • Build time minutes • Minimal costs • Size mitigated CTE mismatch

  26. Automotive Applications • SR-100 Soluble Tool Material • Produce 250°F cured composite parts • 80 psi pressure • Supports complex geometries

  27. Thin Skin Tooling • Design • Ultem material • 6mm thick • 5hrs build time • Tool surfaced with epoxy • Vibratory polished hands off for 1 hr • Use • Released surface • Lay up part • Envelop bagging balances forces • Cured at 250F, 80 psi • Caution: geometry sensitive

  28. Larger Scale Tooling Boeing FDM C-channel Mandrel Lockheed Martin Layup Tool

  29. Hybrid Assemblies • First Robotics Team #3824 • Hardin Valley Academy • RoHawktics • Sponsored by ORNL Manufacturing Demonstration Facility (MDF) • Hybrid Assembly • FDM Fittings • Pultruded Rods • Filament winding • Benefits • Additive is great at relatively smaller more complex • Carbon fiber is great at long, simple, light weight, high strength structures • Combining provides strengths of both technologies

  30. First Robotic Team #3824 • Application • Robot Chassis • Stiff/light weight • Solution • FDM light weight end pieces with critical interfaces • Pultruded carbon rods for spanners • Filament wound for bonding and strength/stiffness • Results

  31. Summary • Additive has a growing role in manufacturing • Stratasys provides solutions over product life cycle • Enabling a wide spectrum of tooling options • Performance materials enable end use parts • Real solutions for composite tooling • R&D efforts expand validated applications

  32. John Dobstetter • Stratasys DDM Group • Business Development Manager • John.dobstetter@stratasys.com • 732-495-4027 o • 612-963-2395 c

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