Alicona - Mr. Dipl.-Ing. Christian JANKO Münze Österreich - Mr. Ing. Alfred GNADENBERGER 29.1.2015
Optical 3D-measurement and its use in minting Alicona - Mr. - - PowerPoint PPT Presentation
Optical 3D-measurement and its use in minting Alicona - Mr. - - PowerPoint PPT Presentation
Optical 3D-measurement and its use in minting Alicona - Mr. Dipl.-Ing. Christian JANKO Mnze sterreich - Mr. Ing. Alfred GNADENBERGER 29.1.2015 Index: 1. Introduction to Alicona 2. 3D measurement: principle - accuracy 3. Surface
Index:
- 1. Introduction to Alicona
2. 3D measurement: principle - accuracy 3. Surface roughness 4. Comparison of tactile and optical method 5. Design / Analysis / Quality assurance 6. Reproduction of medals 7. Rimming profiles of blanks
High resolution optical 3D measurement
- Global supplier of systems based on Focus-Variation
- International team of ~100 employees
- Driving force for traceable optical roughness
measurement
- Worldwide cooperations
Surface and form measurement Coorporations
3D measurement in research and production
- Tool industry
» Micro precision
manufacturing
» Medical technology
and pharmaceutics
» Injection moulding » Automotive
industry
» Aerospace and
aeronautics
Index:
1. Introduction to Alicona
- 2. 3D measurement: principle - accuracy
3. Surface roughness 4. Comparison of tactile and optical method 5. Design / Analysis / Quality assurance 6. Reproduction of medals 7. Rimming profiles of blanks
Measurement technique: Focus-Variation
2.5x 5x 10x 20x 50x 100x Best vertical resolution nm 2300 410 100 50 20 10 Working distance mm 8 22.5 16.5 18 10 4
- Max. measurable area
mm² 10000 10000 10000 10000 3940 985
- Max. measurable profile length
mm 100 100 100 100 100 100
- Min. measurable roughness (Ra)
µm
- 0.3
0.15 0.06 0.03
- Min. measurable radius
µm 20 10 8 5 2 1
- Max. measurable slope angle
° 87
Resolution and application limits
Technical specifications Infinite Focus
Profile roughness Ra = 100 nm U = 25 nm, σ = 2 nm Ra = 500 nm U = 40 nm, σ = 2 nm Areal roughness Sa = 100 nm U = 20 nm, σ = 2 nm Sa = 500 nm U = 30 nm, σ = 2 nm Height measurement z = 1000 µm EUni:St:ODS,MPE = 500 nm, σ = 0.1 µm z = 100 µm EUni:St:ODS,MPE = 400 nm, σ = 0.05 µm z = 10 µm EUni:St:ODS,MPE = 300 nm, σ = 0.025 µm z = 1 µm EUni:St:ODS,MPE = 150 nm, σ = 0.01 µm Distance measurement xy bis 1 mm EBi:Tr:Opt,MPE = 0.7 µm xy bis 10 mm EBi:Tr:Opt,MPE = 1.0 µm
Accuracy
Index:
1. Introduction to Alicona 2. 3D measurement: principle - accuracy
- 3. Surface roughness
4. Comparison of tactile and optical method 5. Design / Analysis / Quality assurance 6. Reproduction of medals 7. Rimming profiles of blanks
3D dataset
Surface of blanks
Index:
1. Introduction to Alicona 2. 3D measurement: principle - accuracy 3. Surface roughness
- 4. Comparison of tactile and optical method
5. Design / Analysis / Quality assurance 6. Reproduction of medals 7. Rimming profiles of blanks
Tactile measurement instrument
- Measuring points on one line
- Storage of samples for further
measurements necessary
- Documentation of results
- Calibration work with normals
- Certain area or whole die
- Relief – „mother file“
- New measurements on special details
always possible – points on lines, distances, relief heights and radiuses
Optical 3D-measurement
Index:
1. Introduction to Alicona 2. 3D measurement: principle - accuracy 3. Surface roughness 4. Comparison of tactile and optical method
- 5. Design / Analysis / Quality assurance
6. Reproduction of medals 7. Rimming profiles of blanks
Coining die
Immediate „visual impression“ by using a colour scale for reliefs
Automatical adjustment and comparison of two coining dies or mother tools
Comparison of two dies (new and wasted) Green areas with a
- max. tolerance of
10µm
Comparison of two dies (new and wasted) – refinement to a max. tolerance of 5 µm (green area)
Milling quality – Comparison of coining dies of 2005 and 2012 on detail „0“
Measuring line
Distanz [µm]
Breite „0“ links 333,7265
Coining die 2005
distance [µm]
Breite „0“ links 333,7265
Coining die 2005
distance [µm]
Breite „0“ links 408,8674
Coining die 2012
Index:
1. Introduction to Alicona 2. 3D measurement: principle - accuracy 3. Surface roughness 4. Comparison of tactile and optical method 5. Design / Analysis / Quality assurance
- 6. Reproduction of medals
7. Rimming profiles of blanks
Reproducion of medals with a silver „model“
Medal
medal 3D-measuring
medal 3D-measuring Milling program file
medal 3D- measurement Milling program file Production of coining die
medal 3D-measuring Milling program file Production of coining die Coining of new medal
medal 3D-measuring Milling program file Production Coining die Coining new medal 3D-measuring
- f new medal
Original medal
Original medal Reproduction
Index:
1. introduction alicona 2. 3D measurement: principle - accuracy 3. Surface roughness 4. Comparison of tactile and optical method 5. Design / Analysis / Quality assurance 6. Reproduction of medals
- 7. Rimming profiles of blanks
Rimming profile - blanks
Summary:
- More features and possibilities with 3D
- Faster and more reproduceable additional measurements
- No storage of samples necessary – only „mother file“
- 6 month of using the system
- Tactile measuring fully removed by 3D-measurement
- Still discovering more possible applications