초록 ▼

Capitalizing on the unique feature of our induction heating workcell that permits rapid and controlled heating and cooling of a workpiece within a wide temperature range permits combining several manufacturing operations into a single heating cycle to save time, energy, capital, touch labor, and fac

Capitalizing on the unique feature of our induction heating workcell that permits rapid and controlled heating and cooling of a workpiece within a wide temperature range permits combining several manufacturing operations into a single heating cycle to save time, energy, capital, touch labor, and factory space. For example, we can combine superplastic forming (SPF) with annealing; two operations that occur at temperatures that differ by about 150-200.degree. F. (85-105.degree. C.) or more, to produce quality parts. We mill parts flat to simplify their machining, form them to complex curvature, and anneal them.

대표청구항 ▼

[ We claim:] [1.] A method for simplifying the machining of complex, multicurved, metal aerospace parts comprising the steps of:(a) milling a first flat blank of metal to remove excess metal in selected areas and to create in intermediate having simple curvature in those areas;(b) heating the milled

[ We claim:] [1.] A method for simplifying the machining of complex, multicurved, metal aerospace parts comprising the steps of:(a) milling a first flat blank of metal to remove excess metal in selected areas and to create in intermediate having simple curvature in those areas;(b) heating the milled blank in a induction heating press to a forming temperature;(c) forming the heated blank at the forming temperature into a curved geometry; and(d) .beta.-annealing the formed blank to increase a fracture strength and to obtain a desired microstructure.