Quench-hardening testing method and apparatus

Details Quench-hardening testing method and apparatus Quench-hardening testing method and apparatus

1995-01-10

1997-09-09

Voeltz, Emanuel T.

Boots, shoes, and leggings

364563, 73760, 148510, C21D 155

Patent

active

056662874

ABSTRACT:
It is an object of the present invention to provide a quench-hardening testing method in which the quench-hardened depth of a quench-hardened layer and the quench-hardening pattern in inner and outer circumferential surfaces of hollow and solid parts can be measured through non-destructive inspection. A quantity of change in size, between before and after quench-hardening, of a hollow or solid member subjected to quench-hardening treatment in at least one of inner and outer circumferential surfaces of the member is measured, and the measured quantity of change is compared with a pre-measured quantity of change in size of a good member or a value obtained by a comparative calculating operation in accordance with a predetermined algorithm on the basis of the measure quantity of change is compared with a predetermined value of the good member to thereby judge the state of quench-hardening. Thus, even in the case of parts complicated in shape or even in the case of small size hollow parts, the quench-hardened depth of a quench-hardened layer and the quality of the quench-hardening pattern of the parts can be measured through non-destructive inspection.

REFERENCES:
patent: 3948090 (1976-04-01), Berman et al.
patent: 4050963 (1977-09-01), Kunioka et al.
patent: 4636969 (1987-01-01), Kyoden et al.
patent: 4755952 (1988-07-01), Johns
patent: 4918627 (1990-04-01), Garcia et al.
patent: 5042055 (1991-08-01), Wirt et al.
patent: 5046111 (1991-09-01), Cox et al.
patent: 5146416 (1992-09-01), Kuo
patent: 5379237 (1995-01-01), Morgan et al.
patent: 5414648 (1995-05-01), Morgan et al.
patent: 5433800 (1995-07-01), Bishop

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