【摘要】 ６０年代以来，国内外能源、重型机械、重化工等工业对大直径精密深孔管件的需求量日益增长，迫切要求对传统的深孔加工技术进行重大变革；本文报道了华北工学院工艺所３年来在大深孔高效精密铰削方面已取得的重大进展。更多还原

【Abstract】 Since60’s , the requirement for large-diameter precision deep-hole pipe is increasing daily in domestic and foreign industry of power, heavy machinery and heavy chemistry .The traditional deep-hole processing technology is urgently de-manded to make great rebtm. This paper reports the great progress of our re-search institute in high efficiency precisfon boring of largeAlameter deepholes dur-ing last three years.更多还原