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United StatesRay-Check Manufacturing machinists are qualified professionals with utmost regard for the manufacture of standard calibration blocks, as well as having the ability to configure custom test blocks per customer specification. RCM brings forty-nine years of experience to the industry.
It is the policy of Ray-Check Manufacturing to ensure that our products be manufactured in compliance with specifications to which they are designed. The products themselves become integral parts of inspection and quality systems throughout the Non-destructive Testing Industry. We are audited and certified by Lockheed Martin as an approved source.
Ray-Check Manufacturing fabricates a full line of Calibration Blocks used to calibrate test equipment and levels of sensitivity.
They are manufactured to all American standards, as well as British and German standards. Standard Blocks are readily available fabricated from:
PDI Alternative ASME Calibration Blocks
PDI Alternative ASME blocks are manufactured in accordance with the requirements of the Performance Demonstration Initiative (PDI) Procedure No. PDI-UT-1, Rev. C, Fig. 4 (Ferritic) and PDI-UT-2, Rev. C, Fig. 4 (Austenitic).
These cover the generic procedures for the ultrasonic examination of both ferritic and austenitic pipe welds. The blocks offer an economical alternative to fabricating multiple curved calibration blocks (pipe sections) in numerous diameters and wall thicknesses.
The blocks are normally supplied in sets of 3 individual blocks. Materials for each blocks are A516 Grade 70 Steel, 304/304L Stainless Steel, and 316/316L Stainless Steel. Individual blocks of any one alloy are also available.
Overall block dimensions are 2.000" wide x 2.250" tall x 10.000" long. block design consists of steps simulating wall thicknesses measuring 0.500", 1.000", 1.500" and 2.000". Each step contains a .010" wide EDM notch machined across the width of the step at a depth of 10% of wall thickness. Scanning surfaces and reflecting surfaces are machined to simulate pipe and plate surfaces of 250 Ra max. finish. Each block is machine-engraved on one side with the Block description, Serial No., Alloy, and Heat No. All blocks are made from ultrasonically inspected, heat number traceable materials.
Air Force General Purpose Eddy Current Standard
Per: U.S.A.F. T.O. 33B-1-1
Figures 4-47 through 4-49 Eddy Current Standard, NSN 6635-01-092-5129, P/N 7947479-10
The common standard used to perform Eddy Current inspections on Aluminum components within the Air Force unless otherwise specified by the cognizant weapon system engineering authority.
The standard is a 3 plate assembly measuring 4" x 7" x 1.06". Contains 20 fastener holes, with diameters ranging from .156" to .750"., 2 screw holes, and 2 dowel holes. There are 66 E.D.M. notches in various locations. Notch depths and lengths vary. Widths for all notches is .004".
Normally supplied in 7075-T6 ALUMINUM, also available in 4340 Steel, 304 Stainless Steel, 6/4 Titanium, and other materials.
Most common material is 7075-T6 Aluminum. Many other materials also available.
Specify thickness, hold diameter, and overall dimensions.
