flame hardening


Also found in: Dictionary, Wikipedia.
Related to flame hardening: Induction hardening, Case hardening

flame hardening

[′flām ‚härd·ən·iŋ]
(metallurgy)
A method for local surface hardening of steel by passing an oxyacetylene or similar flame over the work at a predetermined rate.
Mentioned in ?
References in periodicals archive ?
Flame hardening is the oldest method and, originally, was probably an extension of the use of welding techniques.
Lippert explains that the new steel needs no flame hardening and so eliminates the localized soft spots that used to plague a die's flexible "hinge" and land areas.
Tenders are invited for Design Mft Etc Of Saw Blade Flame Hardening Machine