The process of removing scale, oxides, or lubricant—acquired during heating for forgingThe process of working metal to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. or heatAmount of forging stock placed in a batch-type furnace at one time. treating—from the surface of the forging. (See also Blasting, PicklingThe process of removing oxide scale from forgings by treating in a heated acid bath., Tumbling(1) The process for removing scale from forgings in a rotating container by means of impact with each other and abrasive particles and small bits of metal. (2) A process for removing scale and roughness from forgings by impact with each other, together with abrasive material in a rotating container.... More.)