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speed|scan

GE’s speed|scan atlineCT is a new high-speed computed tomographysystem for 3D mass production process control.

Advanced medical GE gantry based computed tomography (CT) provides technology that has been established over a period of nearly four decades. With GE’s new industrial speed|scan CT system, this proven technology is now going to be also available for high-speed at line process control. The sample is being transported through the tomograph and scanned within 10-90 seconds for a typical casting. While the next part is loaded, the reconstructed CT data is automatically evaluated. Since this offers inspection times > 200 x faster than conventional industrial CT, this technology opens up a lot of new applications for inline process controls, which have in the past been out of reach of conventional industrial CT.

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Description

Key Features
  • First time that fast CT will be available for up to 100 % 3D production process control of complex castings
  • Typical scan speed of ~1 minute for a cylinder head instead of several hours with conventional CT
  • Optimized ease of use and cost of ownership due to high grade of automatization
  • All relevant hard- and software components incl. evaluation algorithms are proprietary GE technology
  • Robust design for 24/7 at line operation
Benefits
  • Proven, gantry based computed tomography offers > 200 x faster inspection compared to conventional industrial CT
  • Much faster CT scanning (better statistics) substituting other NDT inspection and metrology processes
  • Fast 3D inspection and measurement of complex parts & complete feedback for improved reaction on proccess fluctuations
  • Early scrap detection before any further processing steps
  • Optimization of plant equipment and tool maintenance intervals
Applications

3D Computed Tomography

before-after-machining

Industrial X-ray 3D computed tomography (micro ct and nano ct) is used for the inspection and three-dimensional measurement of e.g. metal and plastic castings, composites, sintered materials ad ceramics. Materials distribution, voids and cracks are visualized three-dimensionally at microscopic resolution.

 

Casting & Welding

control-arm-defects-color

Radiographic non-destructive testing is used to detect flaws in castings and welds. The combination of microfocus X-ray technology and industrial X-ray computed tomography (micro CT) enables defect detectability in the micrometer range and provides three-dimensional images of low-contrast defects.

Metrology

zylinderkopf-CT3-merkmale
Reproducible 3D metrology with X-ray is the only technique allowing to non-destructively measure the interior of complex objects. By contrast with conventional tactile coordinate measurement technique, a computed tomography scan of an object acquires all surface points simultaneously – including all hidden features like undercuts which are not accessible non-destructively using other methods of measurement. In addition to 2D wall thickness measurements, the CT volume data can be quickly and easily compared with CAD data, for example, in order to analyze the complete component to ensure it complies with all specified dimensions.

Specifications
Inspection Concept Manual loading & inspection for statistical process control
Max. sample size appr. 300 x 400 x 800 mm (12” x 16” x 31”)
Max. penetration length Up to 300 mm Al, depending on part geometry
Min. detectable defect size > 0.5 mm, depending on part size
Detail detectability > 0.325 mm
Sample weight Up to 50 kg (110 lbs)
3D Metrology Fast CAD nominal/actual analysis for process control
Scan speed 5 mm/s – 35 mm/s (overview scout scans up to 100 mm/s)
Geometric parameters Focus to detector: 950 mm; focus to isocenter: 540 mm; max. scan field of view: 500 mm (aperture: 700 mm)
Scan parameters kV: 80 kV – 140 kV mA: 10 mA – 440 mA Power: 0.8 kW – 53kW
Dimensions basic cabinet 2,500 mm wide x 2,200 mm deep x 2,300 height (98” x 87” x 91”)
Design Suitable for industrial environment with dust protection, thermal isolation, shock absorbers
Air condition 7.3 kW industrial climate control (air/water heat exchanger); temperature: 15°-40°C
Belt conveyor Automatic height adjustment: 0-185 mm; Horizontal scanable range: 800 mm; Speed: 5 mm/s to 100 mm/s (loading & unloading up to 200 mm/s)
Control unit Industrial operation console for scanner & conveyor operation
Radiation protection Lead thickness: 3 mm (door, walls, floor). The radiation safety cabinet is a full protective installation without type approval according to the German RöV and the US Performance Standard 21 CFR 1020.40. For operation, other official licenses may be necessary.
Software user level Designer features (Level 3 operator):

  • Definition of new inspection tasks based on reference datasets
  • Setting of visualization and computational tasks
  • Region specific setup of inspection parameters
  • Definition of visual and semiautomatic inspection
Inspector and reviewer features (Level 2 operator):

  • Automatic execution of the tasks defined in the designer
  • Automatic region specific calculation of 3D defect parameters (size/volume, position, distances, equivalent surface and diameter…)
  • Visualization and result presentation
Pass/fail decision By operator
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Datasheet speed|scan atline CT acrobat-reader acrobat-reader acrobat-reader acrobat-reader acrobat-reader
High-speed Computer Tomography Employed in Pressure Die Casting acrobat-reader