Non-destructive method of testing a weld obtained by pressure we

Details Non-destructive method of testing a weld obtained by pressure we Non-destructive method of testing a weld obtained by pressure we

1988-12-29

1990-01-16

Yasich, Daniel M.

Thermal measuring and testing

Thermal testing of a nonthermal quantity

With loading of specimen

73827, 228 565, G01N 0318

Patent

active

048939447

ABSTRACT:
The invention provides a non-destructive method of testing a weld made by pressure welding two metal parts (2, 3) at forging temperature. After heating to a temperature of about 1100.degree. C. and applying a forging pressure (F1) to form the weld, the method consists in applying a tensile strength (F2) to the weld perpendicularly to the junction plane (P) between the two ducts (2 and 3) while the weld is still hot at a temperature of, for example, about 600.degree. C., in order to enlarge any defects present at the junction surface (4) and thus make them detectable by a conventional fault detection means.

REFERENCES:
patent: 2761310 (1956-09-01), Siegel
patent: 3605486 (1971-09-01), Anderholm et al.
patent: 3937073 (1976-02-01), Steel
patent: 4027529 (1977-06-01), Olsen
patent: 4393718 (1983-07-01), Gebhard et al.
patent: 4425802 (1984-01-01), Sponseller

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