Extract
Tips on saving deviant workpieces.
As much as you try to manufacture parts right the first time, invariably some are produced that deviate from print specifications. Evangelistic quality-control personnel usually aren't sympathetic; however, many times rework techniques can save profits from the scrap pile. With this in mind, here is a sampling of processes that can help salvage the undersize shafts, oversize bores, and porous castings hidden over there in the corner. Putting it back on
Thermal spraying is a low-cost, fast, reliable means of salvaging mismachined or scored production workpieces (e.g., mill rolls, valves, pistons). In one application, several aircraft skin panels were cosmetically damaged by a gouge that couldn't be polished out. Attempts were made to repair with epoxies loaded with aluminum; ho...See the full content of this document
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