High pressure hydroforming press

摘要: An apparatus for hydroforming a tubular metal blank has die structure (12), fluid source, hydraulically driven tube-end engaging (36), pressure intensifying (110), and single hydraulic power source (22). The (36) seals opposite ends of the (T) in said cavity is movable to longitudinally compress (T). receives from supplying outlet through which can be provided blank. (110) pressurize interior thereby expand diameter A (22) provides under order move so that its exterior surface conforms internal surface. also enable cause material diametrically expanded flow inwardly replenish wall thickness maintain thereof within predetermined range.