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Differences between weld overlay and weld deposit?

Differences between weld overlay and weld deposit?

Differences between weld overlay and weld deposit?

(OP)
Could anyone explain the differences between weld overlay and weld deposit? When and where can weld overlay or weld deposit be used? Thanks a lot.

RE: Differences between weld overlay and weld deposit?

Simple definitions;

Weld overlay is normally used in the context of adding filler metal on a substrate to either provide corrosion protection, build-up base material for dimensions or provide wear resistance.

Weld deposit is normally used in the context that filler metal was deposited using one or more fusion welding processes.

RE: Differences between weld overlay and weld deposit?

A bit of a nit-pick here, but "buildup" normally relates to same nominal chemistry as the base material weld deposit, while "overlay" normally relates to a different chemistry than the base material, typically for corrosion or erosion mitigation.

jt

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