nrc-london (micromachining) 2017-18
TRANSCRIPT
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NRC-AST-London Capabilities in Micromachining by Evgueni Bordatchev NRC-AST-London [email protected]
February 2017
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Evgueni Bordatchev, NRC-AST-London, 2017
High Aspect Ratio Pins
2
Ø200um
6mm
1mm square
aspect ratio = 1:30 (< 4 hrs)
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Evgueni Bordatchev, NRC-AST-London, 2017
High Aspect Ratio Spiral
3
1:280 aspect ratio wall: 25 um width, 7 mm height (< 9 hrs)
7 mm
25 um
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Evgueni Bordatchev, NRC-AST-London, 2017
Array of Vertical Tubes
4
4.9 mm
Ø1 mm Ø0.35 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Egg Carton 3D Structure
5
16 mm x 16 mm x 4 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
High Aspect Ratio Honeycomb structure
6
3 mm 25µm
7mm
1:280 aspect ratio wall: 25 um width, 7 mm height (< 6 hrs)
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Evgueni Bordatchev, NRC-AST-London, 2017
Microfluidic die on thin metal foil
7
micro-fluidic die in brass (38 µm thick)
38um depth 15um
replica in thin PMMA sheet
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Evgueni Bordatchev, NRC-AST-London, 2017
Micro-Optical Structure (micro-lens)
8
a) insert b) geometry c) surface quality
30 mm x 30 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Die for concave micro-lens array
9
Ra = 50 ÷ 70 nm
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Evgueni Bordatchev, NRC-AST-London, 2017
V-groves on 3D surfaces (curved)
10
16 mm × 16 mm Brass
Sa ≤ 10 nm
pitch: 200 µm depth: 100 µm included angle: 90°
R 100 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
V-groves on 3D surfaces (curved)
11
16 mm × 16 mm PMMA Sa ≤ 10 nm
R 100 mm
pitch: 200 µm depth: 100 µm included angle: 90°
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Evgueni Bordatchev, NRC-AST-London, 2017
V-groves on 3D surfaces (waved)
12
16 mm × 16 mm PMMA
Sa ≤ 10 nm
pitch: 200 µm depth: 100 µm included angle: 90°
R 18 mm
R 18 mm
R 18 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Micromilling: pyramid and thin wall
13
1 mm wall width: 0.05 mm wall depth: 2 mm aspect ratio: 1:40
Sa : 140–200 nm (pyramid side
surface) Sa: 80–100 nm
(bottom along tool path)
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Evgueni Bordatchev, NRC-AST-London, 2017
Bullseye Plasmonic Lens
14
top
bottom
25 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Linear array of V-grooves (Al) 0.25 mm step, 0.15 mm depth
15
250X
88.710
149.5um 249.35um
Cutting
controlled directional reflectivity
~90 deg ~45 deg ~65 deg
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Evgueni Bordatchev, NRC-AST-London, 2017
Planar Micro-optical Prismatic Elements (25 x 25 x 8 µm)
16
25µm
25µm
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Evgueni Bordatchev, NRC-AST-London, 2017
Direct machining of plastics (e.g. PMMA) with optical surface quality
17
direct machining of plastics with optical quality
Ra < 40 nm (max) and 17 nm (min)
40 x 40 x 40 µm pyramids (60 µm apart)
40 µm
60 µm
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Evgueni Bordatchev, NRC-AST-London, 2017
Flycutting machining of brass with optical surface quality
18
flycutting
Ra = 3.7 nm over 1 mm2
area
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Evgueni Bordatchev, NRC-AST-London, 2017
Milling of flat metallic surfaces (brass) with optical surface quality
19
micromilled plate
min Ra = 13.6 nm
Sa = 43.5 nm over 1 mm2 area
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Evgueni Bordatchev, NRC-AST-London, 2017
Micromilling of flat surfaces (Sa = 12 nm)
20
Sa = 12 nm 11 x 11 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Micromilling of a microfluidic die (brass)
21
Sa = 47.13 nm Sa = 42.04 nm
Sa = 46.71 nm Sa = 85.32 nm
10 mm
54 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Direct machining of plastics (e.g. PMMA) with optical surface quality (microfluidic chip)
22
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Evgueni Bordatchev, NRC-AST-London, 2017
Direct machining of plastics (e.g. PMMA) with optical surface quality (microfluidic chips)
23
direct machining of plastics with optical quality
Ra < 20 nm
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Evgueni Bordatchev, NRC-AST-London, 2017
Micromachining of Cemented Carbide (95 HRA): Surface Quality
24
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Evgueni Bordatchev, NRC-AST-London, 2017
Micromachining of Cemented Carbide (95 HRA): Surface quality (Sa)
25
Sa:
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Evgueni Bordatchev, NRC-AST-London, 2017
Light Pipe Insert (Brass)
26
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Evgueni Bordatchev, NRC-AST-London, 2017
Laser texturing of super-hydrophobic surfaces: Water drop test
27
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Evgueni Bordatchev, NRC-AST-London, 2017
Laser texturing of super-hydrophobic surfaces: Self-cleaning performance
28
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Evgueni Bordatchev, NRC-AST-London, 2017
Laser texturing of super-hydrophilic surfaces: Water drop test
29
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Evgueni Bordatchev, NRC-AST-London, 2017
Laser texturing of super-hydrophilic surfaces: Vertical super-hydrophilic time-lapse
30
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Evgueni Bordatchev, NRC-AST-London, 2017
Texturing of Al alloy
31
14 mm x 14 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Texturing of PMMA plastics
32
14 mm x 14 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Texturing of grey-scale images
33
10 mm x 10 mm
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Evgueni Bordatchev, NRC-AST-London, 2017
Texturing using retroreflective structures in plastics and in metal
34
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Evgueni Bordatchev, NRC-AST-London, 2017
Capabilities in Micromachining, Micro-optics and Surface Functionalization
35
Contact information: Dr. Evgueni Bordatchev NRC-AST-London Automotive and Surface Transportation 1-519-430-7107 [email protected]