Application examples of Eddy current flaw Inspector
CASE01
Crack inspection for ball screw after forming
- Background
- Cracks often found after straightening of heat deformation. Using acoustic emission sensor was one of the option but a risk of defect flow was still expected.
- Our proposal and outcomes
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We focused on “simple design” to minimize the cost. By using a unique sensor which utilize the form of the threads to be engaged with, realized the self-axial-movement without any additional drive unit. Also reduced the inspection time with it.
CASE02
Flaw inspection for forged product used automatic transmission
- Background
- The customer required automatic full inspection system in order to discontinue visual inspection. Also a high speed inspection was essential as the inspection cycle time was very short.
- Our proposal and outcomes
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We proposed automatic scanning inspection by rotating the object In order to reduce the inspection time. Using automatic full inspection also stabilized inspection quality.
CASE03
Crack inspection for shock absorber
- Background
- Because the product is made by precision forging, often caused material cracks.
Also the previous inspection method either magnetic particle test or fluorescent penetrant test had particular drawbacks such as product magnetization as well as human visual inspection errors.
- Our proposal and outcomes
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As demagnetization process is not required for eddy current inspection, human error was solved, also saved inspection time.