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From uson.com
Eddy current technology offers a fast, clean and repeatable method for the non destructive testing of powder metal components. Given the high cost of failure in critical automotive and aerospace components, many manufacturers are migrating toward 100% testing of their products. Eddy current testing is being utilized to detect proper hardness, heat treat condition, proper alloy content, flaws and geometry variations. Hardness and heat treat variations can be reliably detected and sorted at line speeds up to several parts per second. Actual production tests for a particular powder metal gear indicate that the correlation between Rockwell hardness and eddy current hardness testing were within 1 to 3 HrB points variation. Eddy current testing theory and case study results will be presented. Products & Services
Eddy current instruments are nondestructive testing (NDT) devices that induce detectable eddy currents in conductive materials. They are used to detect flaws, determine thickness, inspect welds, measure conductivity, and sort alloys.
Non-destructive testing (NDT) equipment is used to detect, inspect, and measure flaws, bond integrity, and other material conditions without permanently altering or destroying the examined part or product.
Non-destructive testing (NDT) material testers are devices, machines and equipment that are used to determine residual stress, alloy type, hardness, microstructure, elasticity, heat treatment and other material conditions without permanently altering or destroying the material being examined.
Thickness gages are used to make precise dimensional measurements on a wide variety of coatings and materials including steel, plastic, glass, rubber, ceramics, paint, electroplated layers, enamels, etc
Calibration standards and reference sources include any source that can provide a reference for the calibration of an instrument or comparison of a material or component.
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Topics of Interest
Eddy current testing provides an analog means of evaluating mechanical parts. It is not a go/no-go gauge, but a proportional means of reviewing the characteristics of machined components. Although a...
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Eddy current, penetrating radar and other electromagnetic techniques used to detect or measure flaws, bond or weld integrity, thickness, electrical conductivity, detect the presence of rebar or...
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Bearing components can have hidden structural problems that will shorten product life. Improper heat-treating can ruin an entire production batch. One bad part in a bearing can ruin that bearing...
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Eddy current, ground penetrating radar (GPR), and other electromagnetic NDT testing techniques used to detect or measure flaws, bond or weld integrity, thickness, electrical conductivity, detect the...
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This paper explores traditional and unique eddy current wire testing solutions. Eddy current inspection is a non-destructive testing technique uses to detect surface imperfections and other conditions...
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Technical Articles
Test Methods For Evaluating Anodized Aluminum
- Test and Measurement
Coating Thickness Measurement: The Fundamentals
- Non-destructive Testing Equipment
Practical Solutions for Coating Thickness Measurement
- Industrial Coatings and Sealants
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