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Inspection methods for round holes in material

A circular hole and probe technology, applied in the analysis of materials, material magnetic variables, material analysis using sound waves/ultrasonic waves/infrasonic waves, etc., can solve problems such as difficult probe manipulation, long inspection time, and complex manipulation

Inactive Publication Date: 2018-06-26
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Performing inspections on inner diameter surfaces of larger diameters (eg, over 2.5 cm) makes probe manipulation very difficult
Another challenge is that probes with a single sensor necessarily require long inspection times due to proper inspection coverage requirements
Additionally, individual sensor probes require complex manipulation to ensure adequate inspection coverage

Method used

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  • Inspection methods for round holes in material
  • Inspection methods for round holes in material
  • Inspection methods for round holes in material

Examples

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Embodiment Construction

[0034] As described above, the present invention provides a probe for use in inspection methods of substantially circular holes such as, for example, bolt holes or boreholes in turbine components.

[0035] refer to Figures 1 to 3 , in one embodiment, a probe 100 of an inspection system 102 for a substantially circular hole in a material is illustrated. Inspection system 102 may include any now known or later developed eddy current or ultrasonic inspection system capable of operatively coupling with a probe according to the present invention. As can be appreciated, inspection system 102 includes a control system for passing probes such as, Figures 1 to 3 Probe 100 in or Figures 4 to 6 The probe 200 in ) transmits an eddy current or ultrasonic signal, receives a return signal and analyzes the return signal so that the structure of the material over which the signal is transmitted can be analyzed and / or imaged. Such inspection systems 102 are particularly capable of identif...

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Abstract

Various aspects include methods of inspecting a substantially round hole in a material. One method can include: feeding a probe axially into the substantially round hole until the probe completely passes through the substantially round hole while the probe is activated; rotating the probe at least ninety degrees around a primary axis of the substantially round hole after feeding the probe completely through the substantially round hole; removing the probe axially from the substantially round hole after rotating the probe at least ninety degrees while the probe is activated; and compiling at least one of eddy current data or ultrasound data about the hole from the feeding of the probe axially into the substantially round hole and the removing of the probe axially from the substantially round hole.

Description

technical field [0001] The present invention generally relates to inspection of components. More specifically, the present invention relates to methods of inspecting substantially circular holes using eddy current-based or ultrasound-based probes. Background technique [0002] Industrial machines such as gas turbines have many parts with holes in them that require inspection using eddy currents or ultrasound. For example, bolt holes in gas turbine parts may require such inspections to identify cracks and the like. One challenge with eddy current and ultrasonic inspection methods is that they require very precise manipulation of the inspection probe. Performing inspections on inner diameter surfaces of larger diameters (eg, over 2.5 centimeters) makes probe manipulation very difficult. Another challenge is that probes employing a single sensor necessarily require long inspection times due to proper inspection coverage requirements. Additionally, a single sensor probe requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/90G01N29/04
CPCG01N29/04G01N2291/023G01N27/9006G01N29/262G01N29/265G01N2291/106G01N27/902G01N27/904G01N2291/2636G01N29/226G01N29/30G01N2291/0234G01N2291/0289G01N27/9053G01N27/9086
Inventor R.W.伯格曼T.J.巴青格尔T.E.摩尔登豪尔
Owner GENERAL ELECTRIC CO
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