Reference part, especially for nondestructive testing by ultraso

Details Reference part, especially for nondestructive testing by ultraso Reference part, especially for nondestructive testing by ultraso

1979-04-06

1980-05-20

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01N 2904

Patent

active

042033152

ABSTRACT:
One or a number of inserts are each fitted within a housing formed in a reference part, each insert being preferably of cylindrical shape and having a predetermined defect in density. An intimate metallurgical bond is formed between the surface of the insert and the housing by depositing a layer of copper on a steel insert when the part is of steel, and by applying a heat treatment. The reference part serves to calibrate testing instruments for ultrasonic metal inspection as well as to determine the character and size of detected defects in density.

REFERENCES:
patent: 3608352 (1971-09-01), Walton et al.
patent: 3908439 (1975-09-01), Pelak
patent: 3933026 (1976-01-01), Ham

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