Trowel having imposed blade stresses and method of manufacture

Details Trowel having imposed blade stresses and method of manufacture Trowel having imposed blade stresses and method of manufacture

1998-03-31

2000-03-07

Chin, Randall E.

Brushing, scrubbing, and general cleaning

Implements

Mason's trowel or float

76119, B05C 1710

Patent

active

060323205

ABSTRACT:
A trowel and related method of manufacture in which residual stresses are intentionally imposed upon the bottom working surface and/or the top mounting surface of a trowel blade. Stresses can be imposed, for example, by glass bead peening, shot peening, rolling, and/or brushing the metal trowel blade. Stresses are built up to a working stress level that remains substantially constant with further use of the trowel against abrasive, spreadable surfaces. Imposed stresses on the top and bottom surfaces can also be used to vary the resulting curvature of the blade.

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"Metals Handbook," 8.sup.th edition, vol. 2, Heat Treating, Cleaning, and Finishing, pp. 398-402 eds. Lyman American Society for Metals.

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