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Turbine blades are normally measured with a contact probing solution on a cartesian CMM. The addition of a Metris LC and XC scanner to the CMM, however, can provide a number of benefits and advantages to the majority of blade developers processes which are so far largely unrealized within the industry. Advantages include:
Automated capture – through CNC machine control
High accuracy data – 2.5 to 15 microns (machine dependant)
High resolution – sufficient for key blade features such as edges and roots etc
High speed capture – almost 20.000 measured 3D points per second
Metris scanners are used to either capture critical known areas for instant analysis, or alternatively to capture complete surface geometry for in depth ‘off-line’ analysis. Where absolute accuracy is required CMM scanner data can be used in conjunction with CMM contact probe data. The two data types can both be processed and analysed within Metris software.
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Typical blade scanning solution:
- Metris LK Integra 8.7.6 CMM
- Metris LC15 laser line scanner for small blades
- Metris LC50 for larger blades and airfoils
- Metris Focus Inspection software with dedicated Blade module
For larger blades where tolerance and resolution demands are lower (40 micron region) ModelMaker D handheld scanners can be used with an articulated arm. This solution is also ideal where speed and flexibility of data capture are the most significant requirement.
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Product brochures
LC15 - High accuracy scanning
Latest news
09/07/2008
Metris and API announce joint distributor agreement
30/06/2008
Metris acquires CMM software company Integrated Quality Inc.
11/06/2008
Metris receives Best Performer sales growth award
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