Japan IT Week 2024 Brochure by 47Billion (English)
Clem plastic shaping
1. CLEM
CLEM
Overview thermoplastics
• PS • PE
• ABS • PMMA
• PVC • PC
• PP • PET
– C extrusion
Co t i
– Blends
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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. 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. 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. 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. 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. 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. 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
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. PE Polyethylene
• Applications
– Roof il
R f tiles
– Automotive
– Transport trays
– Machine parts
– Safety hoods
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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. 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. 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. 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. 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. PET Poly Ethene Tereftalate
• Applications
– Packaging
P k i
– Food
– Bottles for softdrinks
– Displays
– Cable insulation
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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. 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
23. Vacuum forming ?
Thermoplastic, semimanufactured product
in plate form
p
3-D product
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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. Forming
Mould
Heated plate
Clamp system
p y
Temp. control
channels
Vacuum channel
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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
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
possible
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
46. Negative HPF
• Variable wall thickness
• Adding texture to the surface is possible
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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. Twin sheet forming
• 2 sheets are heated up simultaneously +
formed + welded
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
49. Design:
opportunities restrictions
• Variable wall thickness
Positive Negative
• 1 side with correct dimensions as a result of
contact with mould
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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. 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. 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. Design:
opportunities restrictions
• Draw ratio
sum of all surfaces initial thickness
Draw ratio = =
initial surface average final thickness
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
54. Finishing
From plate to final product
Vacuum forming with
automatic loader
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
55. Finishing
From plate to final product
5-axis milling 3D measurement
bench
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk
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. Projects
• Medical sector
Part of radiology device Communication aid
CLEM N.V. Spinnerijkaai 39, B-8500 Kortrijk