Electroforming produces close tolerance and nonporous tools, and offers savings in time and investment in capital equipment. Tools made by electroforming are not as limited as tools of high-temperature plastic construction which, because of repeated heat cycling, have reduced accuracy after long use. Tools fabricated from aluminum stock can be economically produced only if the shape, contours, and curves can be achieved by rolling, braking, or welding the aluminum stock. Hand finishing operations are expensive and time-consuming.
