Materials hardness testing device

Details Materials hardness testing device Materials hardness testing device

1976-08-02

1977-11-29

Myracle, Jerry W.

Measuring and testing

Hardness

By penetrator or indentor

G01N 340

Patent

active

040599906

ABSTRACT:
A hardness testing device of the type adapted to measure the hardness of workpieces by indentation of the surface stratum thereof by an indenter or penetrating device. The depth of penetration of the workpiece under a prescribed load applied to the penetrating device is proportional to the hardness of the workpiece, which in turn is visually and/or audibly communicated by a variable fluid flow sensing system associated with the penetrating means. The testing device is readily adapted for automatic operation to test individual workpieces at commercial production rates to assure they are within prescribed quality and/or hardness limits.

REFERENCES:
patent: 2685197 (1954-08-01), Mennesson
patent: 3782365 (1974-01-01), Pinna
patent: 3934463 (1976-01-01), Venderjagt

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