'Net-Shape HIP For Complex Shape PM Parts As A Cost-Efficient Industrial Technology'

摘要

HIP (Hot Isostatic Pressing) is efficiently used in PM (Powder Metal) as a consolidation technique for large size billets from many advanced powder compositions. However, the advantages of HIP can be revealed by introducing its shaping potential through manufacturing complex, "near net shape" parts which will have both the shape complexity of castings and the properties of wrought material. During the last decade of HIP, this "net" and "near net shape" approach was developed and used mainly for aerospace needs. However, numerous commercial applications in power generation, gas and oil industry and other areas utilizing large size, critically loaded components require improvement of cast properties or cost reduction for forged and milled products. New advances in HIP tooling design and manufacturing techniques have enabled the transfer of HIP from elaborate aerospace process to an industrial technology for a wide spectrum of materials from light to heavy metals.