What is Deviation Analysis?
Deviation Analysis, also known as Computer-Aided Verification (CAV) or Computer-Aided Inspection (CAI), is a method of inspection that compares 3D scan data to existing CAD or other scan data. This process helps to visually identify discrepancies such as sink, warp, and twist in parts or tools. The output often includes colorful visualizations called color maps.
What are the benefits of Deviation Analysis?
- Cost-Effective: It’s an extremely cost-effective method to capture near full-coverage of any part and compare it to a known standard.
- Comprehensive Visualization: Color maps provide an excellent way to visually identify undesirable characteristics in complex shapes.
- Quick Verification: It allows you to quickly check the profile of your part against nominal CAD or a golden part and verify it is within an acceptable range.
- Flexible Delivery: You receive both an interactive 3D report and a 2D PDF report.
- Powerful Reporting: The reports include a powerful viewer app, CAM2, which allows for further interrogation of the data and custom report creation.
How does the Deviation Analysis process work?
- Scanning: Everything begins with 3D scanning. Various scanning technologies can be utilized based on your part’s material, size, and complexity.
- Processing: The resulting point cloud data is processed to remove noise and ensure a clean scan.
- Alignment: The clean scan data is aligned to the reference data (existing CAD model or another scanned part).
- Reporting: On project close, both a 3D interactive report and a 2D PDF report are delivered, tailored to your project requirements.
What is a color map, and how is it useful?
A color map is a bright, colorful visualization that helps to identify discrepancies such as sink, warp, and twist in parts or tools. This is especially useful for organic and complex shapes where traditional Coordinate Measuring Machine (CMM) inspection may lack coverage and point density.
What types of deliverables can I expect from a Deviation Analysis project?
Every Deviation Analysis project includes:
- An interactive 3D report.
- A powerful viewer app called CAM2.
- A 2D PDF report.
These deliverables allow for further data interrogation and custom report creation.
Can the results of Deviation Analysis be customized?
Yes, the deviation between the base and scan data can be represented in various ways that are useful to you, such as Pass/Fail criteria or color scales with custom ranges. Specific dimensional call-outs can also be taken from the report and published as an FAI data spreadsheet.
How can I get started with Deviation Analysis?
To get started, simply reach out for a free consultation with one of our engineers. They will guide you through the process and help you determine the best approach for your specific needs.
Who can benefit from Deviation Analysis?
- Manufacturers looking to ensure the quality of their parts.
- Quality Managers aiming for precise and comprehensive inspection reports.
- Production Engineers who need quick and accurate verification of part profiles against standards.
For more information or to schedule your free consultation, click here.