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Clem plastics part i

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Clem plastics part i

  1. 1. CLEM CLEM Overview thermoplastics • PS • PE • ABS • PMMA • PVC • PC • PP • PET – C extrusion Co t i – BlendsCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  2. 2. PS Polystyrene• Properties – Very well deformable V ll d f bl – Dimensionally stable – High gloss – Cheap – Not very chemical resistant – Not i t t t N t resistant to UV CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  3. 3. PS Polystyrene• Applications – Food F d & medical packaging di l k i – Toys – Electronic housings – Displays – Refridgerator interiors CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  4. 4. ABS Acryl Butadiene Styrene• Properties – Impact resistant I i – Well deformable – Easy to glue – Modified = limited outside use – Fairly chemical resistant CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  5. 5. ABS Acryl Butadiene Styrene• Applications – Automotive industry A i i d – Electronic houdings – Machinery – Available with special properties like fire retardant and antistatic CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  6. 6. PVC Poly Vinyl Chloride• Properties – Good i G d resistance to li h and humidity light d h idi – Strong and not brittle – Optical transparancy is possible – Long life span – Fairly chemical resistant – Chloride li k Chl id links are released through burning l d th hb i CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  7. 7. PVC Poly Vinyl Chloride• Applications – Roof R f gutters and d i pipes d drain i – Outside doors – Machinery – Electrical insulation – Medical housings (fire safety) CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  8. 8. PP Polypropylene• Properties – Resistant to high temperatures R i hi h – Ductile – Not sensitive to aging – Cheap – No well thermoformable CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  9. 9. PP Polypropylene• Applications – Food F d – Automotive – Technical products – Packaging CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  10. 10. PE Polyethylene• Properties – Very i V impact resistant i – Very resistant to UV (black) – Very chemical resistant – Hard to glue – Bad form stability – Resistant t h idit R i t t to humidity CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  11. 11. PE Polyethylene• Applications – Roof il R f tiles – Automotive – Transport trays – Machine parts – Safety hoods CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  12. 12. PMMA Polymethylmethacrylate• Properties – Clear Cl transparant – Very printable – Easy to deform – Not so impact resistant – UV stabile and colourfast – Cast C t & extruded quality t d d lit CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  13. 13. PMMA Polymethylmethacrylate• Applications – Light d Li h advertising ii – Transparant hoods for machines – Baths & showers – Roof domes – Design lighting CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  14. 14. PC Polycarbonate• Properties – Very i V impact resistant with high/low temp’s i i h hi h/l ’ – High temperature resistance: 140°C – Very transparant – Suited for exterior with a UV coating – Good fire resistance – Humidity b b t H idit absorbant – Relative expensive CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  15. 15. PC Polycarbonate• Applications – Machinery M hi – Transparant parts for exteriors (anti vandalism) – Lighting (fire resistant) – Safety windows – Safety helmets CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  16. 16. PET Poly Ethene Tereftalate• Properties – Good G d transparancy – Low temperature resistance: 65°C – Very tough – Good thermoformable – Good chemical resistance – Formfast F f t – Good fire resistance CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  17. 17. PET Poly Ethene Tereftalate• Applications – Packaging P k i – Food – Bottles for softdrinks – Displays – Cable insulation CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  18. 18. Hybrids• Blends: ABS,PC/ABS,PS/PP,KYDEX, TPO• Co extrusion: ABS/PMMA• Combined sheets: PE + 3mm foam CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  19. 19. Bayloy ®• Bayloy 10: opaque coloured polycarbonate sheets• Bayloy 21: PC/PETG blend• Bayloy 40: opaque APET sheets• B l 50: opaque coloured PETG sheets Bayloy 50 l d h t• Bayblend: PC/ABS blend y CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  20. 20. Kydex• Properties – Impact resistant I i – Stiffness S iff – Fire resistant – Resilient – Chemical resistance – Dimensional stability – Very good – Easy to colour thermoformable – Low minimal order – No pre-drying needed pre drying quantity – Abrasive resistance CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  21. 21. CLEM CLEM VACUUM FORMING dHr. Verheust V.CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  22. 22. Overview• Vacuum forming ?• Commonly used techniques• Design: opportunities  restrictions• Finishing g• Projects j CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  23. 23. Vacuum forming ? Thermoplastic, semimanufactured product in plate form p 3-D productCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  24. 24. Vacuum forming - process 3 stages in the process Heating up Forming Cooling(plate thickness, sort of material) thickness(form  place dependent) CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  25. 25. Forming MouldHeated plate Clamp system p y Temp. control channels Vacuum channelCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  26. 26. Forming machines 2 basic concepts• Single-station (discontinuous)• Multi-station (q (quasi-continuous) ) CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  27. 27. Forming machines Single-station Multi-station (carrousel) 1 treatment station 3 different treatment stations (loading/unloading, heating, forming)CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  28. 28. Commonly used techniques• Positive forming – Usual positive forming – Forming using pre-blowing – Forming a vacuum• Negative forming – Usual negative forming – Forming with stamp – Forming using pre-blowing, stamp and vacuum• Hi h pressure f High forming (HPF) i• Twin sheet forming g CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  29. 29. Usual positive forming Heating Elastic Forming iCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  30. 30. Usual positive forming improvement via• V i bl wall thickness  Variable ll hi k pre-blowing or vacuum• Inside – correct dimensions CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  31. 31. ApplicationCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  32. 32. Positive forming + pre-blowing• Better division of wall thickness via pre- blowing1. Pre-blowing 2. Vacuum CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  33. 33. Positive forming + pre-blowingCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  34. 34. ApplicationsCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  35. 35. ApplicationCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  36. 36. Positive forming + vacuum• Better division of wall thickness via vacuum Vacuum CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  37. 37. Application Lighting hood (base: 500 x 350) (height: (h i ht 600)CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  38. 38. Negative forming Variable wall thicknessVacuum CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  39. 39. Negative forming Improvement via• Variable wall thickness  stamp• Outside – correct dimensions CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  40. 40. ApplicationCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  41. 41. Negative with stamp• Better division of wall thickness via stamp 1. Stamp stretching 2. V 2 Vacuum CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  42. 42. ApplicationsCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  43. 43. Negative forming with pre pre- blowing, stamp and vacuum• Better division of wall thickness 1. Pre-blowing 2. St 2 Stamp stretching 3. Vacuum CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  44. 44. ApplicationsCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  45. 45. High pressure forming (HPF) At atmosphere High pressure Acute A t angles? l ? •Almost always negative •Acute angles  no problem •Adding texture to the surface is possibleCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  46. 46. Negative HPF• Variable wall thickness• Adding texture to the surface is possible CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  47. 47. Negative HPF with stamp• Better division of wall thickness via stamp• Adding texture to the surface is possible CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  48. 48. Twin sheet forming• 2 sheets are heated up simultaneously + formed + welded CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  49. 49. Design: opportunities  restrictions• Variable wall thickness Positive Negative• 1 side with correct dimensions as a result ofcontact with mould CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  50. 50. Design: opportunities  restrictions• Ideal angle g 135 °, ideal 90°, good 60°, to be avoided to be avoided better best CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  51. 51. Design: opportunities  restrictions• Conics• A id undercuts, though they are possible Avoid d t th h th ibl CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  52. 52. Design: opportunities  restrictions• Depth of draw p Stamp necessary ? •S Secondary d d draw Strong thinning of wall thickness  Stamp from above with controlled ih ll d temperature CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  53. 53. Design: opportunities  restrictions• Draw ratio sum of all surfaces initial thicknessDraw ratio = = initial surface average final thickness CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  54. 54. Finishing From plate to final product Vacuum forming with automatic loaderCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  55. 55. Finishing From plate to final product 5-axis milling 3D measurement benchCLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  56. 56. Projects• Realised projects in very diverse domains – Medical sector – Automotive sector / transport – Industry – Design & display – Art – ... CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  57. 57. Projects• Medical sector Part of radiology device Communication aid CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  58. 58. Projects• Automotive sector / transport Bodywork Roof part CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  59. 59. Projects• Industry Housing of a loom Internal door CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  60. 60. Projects• Design & display CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
  61. 61. Projects• Art Pieces of scenery CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk

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