CAJ | 학술논문

采用粉末冶金热等静压近净成形（ NNS－PM－HIP）技术制备了几种典型的钛合金结构件，利用技术成本模型分析了NNS－PM－HIP工艺制备钛合金构件的经济性，并与其他成形工艺进行了对比。结果表明：随着工件尺寸的加大、复杂程度的提高，包套／模具的制作以及热等静压成为影响采用NNS－PM－HIP技术制备钛合金构件成本的主要因素。有限元模拟仿真的介入和工件的批量化生产使得NNS－PM－HIP工艺的成本显著降低。与锻造等工艺相比，工件越复杂、尺寸越大，以及原材料成本占总成本比例越低， NNS－PM－HIP工艺成形钛合金构件的优势越发突出。
채용분말야금열등정압근정성형（ NNS－PM－HIP）기술제비료궤충전형적태합금결구건，이용기술성본모형분석료NNS－PM－HIP공예제비태합금구건적경제성，병여기타성형공예진행료대비。결과표명：수착공건척촌적가대、복잡정도적제고，포투／모구적제작이급열등정압성위영향채용NNS－PM－HIP기술제비태합금구건성본적주요인소。유한원모의방진적개입화공건적비양화생산사득NNS－PM－HIP공예적성본현저강저。여단조등공예상비，공건월복잡、척촌월대，이급원재료성본점총성본비례월저， NNS－PM－HIP공예성형태합금구건적우세월발돌출。
Near-net-shape hot-isostatic-pressing technology was used to fabricate several kinds of powder metallurgy titanium components.The cost of the powder metallurgy near-net-shape hot-isostatic-pressing technology ( NNS-PM-HIP) was compared with that of traditional forming processes.It indicates that, with increasing size and complexity of the componets, the cost of capsule/tooling and hot-isostatic-pressing are the major manufacturing cost drivers of NNS-PM-HIP.The finite element method and volume production are effective ways to reduce the cost of NNS-PM-HIP. Compared with traditional forming technologies, the economic competitiveness of NNS-PM-HIP process improves significantly when high complexity large size components are produced or higher material utilization is required.