喷射成形技术的发展概况及展望

喷射成形工艺流程短、成本低、沉积效率高、制造系统灵活柔性,是一种极富有发展前景的近终形成形快速凝固技术.介绍了喷射成形技术的发展历程;叙述了喷射成形在铝合金、钢铁材料、镁合金、铜合金、高温合金、金属基复合材料的研究与应用情况;阐述了多层喷射成形技术和原位反应雾化喷射沉积成形技术,对喷射成形技术进行了评价和展望.

Advance in Spray Forming Technology and Its Prospect

Spray Forming technology gets involved with new materials preparation techniques in multiple domains such as powder metallurgy, fluent metal atomization, rapid cooling and non-equilibrium solidification. High performance alloy and metal matrix composite with high density, low oxygen content and microstructure featuring rapid solidification can be fabricated by spray forming. Spray forming, which is of short process flow, low cost, high deposition efficiency, flexible manufacture system, becomes a kind of near shape forming and rapid solidification technology with great prospect. Therefore the developing process history of spray forming technology is introduced and the current research and development status of spray forming technology in the fields of aluminum alloy, steel material, magnesium alloy, copper alloy and high temperature alloy and metal matrix composite is described. Multi-layer spray forming and in-situ reaction atomization spray forming are also discussed. In addition, evaluation and prospect for the technology are presented.