Electronic intelligent indenter

Details Electronic intelligent indenter Electronic intelligent indenter

2005-06-14

2005-06-14

Raevis, Robert (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

Reexamination Certificate

active

06904806

ABSTRACT:
An electronic intelligent indenter system that determines the hardness and the case depth of a hardened portion of a test part in a non-destructive manner. The system employs an electronic indenter tool having a tip. To determine the depth of the case hardened portion of the part, the indenter tip is placed in contact with the surface of the part, and a laser emits a laser beam pulse that impinges the surface of the part proximate the tip. The laser beam generates ultrasonic waves that propagate into the part. The ultrasonic waves reflect off of a transition between the case hardened portion and an unhardened portion of the part. A detector in the indenter system detects the reflected ultrasonic waves. The ultrasonic waves cause the detector to generate a signal identifying the time between when the laser pulse is emitted and when the reflected wave is received. The signal is analyzed by a controller that compares the signal to a standard of calibration for a reflected wave from a hardened portion of a calibration part having a greater depth than the test part.

REFERENCES:
patent: 2663185 (1953-12-01), Broschke
patent: 3653256 (1972-04-01), Mashimo
patent: 3805598 (1974-04-01), Corcoran
patent: 4059990 (1977-11-01), Glover et al.
patent: 4551030 (1985-11-01), Luukkala et al.
patent: 4820051 (1989-04-01), Yanagisawa et al.
patent: 5038615 (1991-08-01), Trulson et al.
patent: 5146779 (1992-09-01), Sugimoto et al.
patent: 5438872 (1995-08-01), Kobayashi et al.
patent: 5553486 (1996-09-01), Bonin
patent: 6142010 (2000-11-01), Merck, Jr. et al.
patent: 6247355 (2001-06-01), Suresh et al.
patent: 6343502 (2002-02-01), Subhash et al.
patent: 6349595 (2002-02-01), Civolani et al.

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