A superalloy double helix integrated impeller with good performances of dimensional precision, microstructure and mechanics was rapidly manufactured by hpdm ( hybrid plasma deposition & milling ) method proposed by author's, laboratory, which synthesized plasma deposition as an additive technology, and milling as a subtractive technique during the processing 摘要采用等離子熔積與銑削復(fù)合制造技術(shù),在等離子熔積成形過程中復(fù)合銑削精整,試制了難加工高溫合金雙螺旋整體葉輪樣件,其組織性能和力學(xué)性能均高于采用傳統(tǒng)工藝加工獲得的葉輪。