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裂解工艺是航空发动机连杆制造的一项新技术,文章介绍了航空发动机对连杆质量的特殊要求,分析了连杆材料与热处理对裂解加工工艺的影响,并用20CrMoA低合金结构钢作为连杆材料,通过恰当的热处理工艺,满足了航空发动机对连杆的特殊需求。在此基础上重点讨论了裂解工艺的原理及其主要影响因素。通过试验,确定了裂解工艺孔的位置、数量及尺寸,确定裂解槽槽深、张角和曲率半径的取值及加工手段,设计了同步定行程的浮动式裂解装置,提高了裂解质量及裂解可靠性,解决了用裂解加工工艺取代传统加工工艺生产航空发动机连杆的工艺难题,减少了加工工序,降低了生产成本,简化了加工设备和工具,强化了航空发动机连杆的综合机械性能。
Cracking technology is a new technology for the manufacture of aeroengine connecting rod. The article introduces the special requirements of aeroengine on the connecting rod quality, analyzes the influence of connecting rod material and heat treatment on cracking process, and uses 20CrMoA low alloy structural steel as connecting rod Materials, through the appropriate heat treatment process, to meet the special needs of the connecting rod of the aero-engine. On this basis, the principle of pyrolysis process and the main influencing factors are mainly discussed. Through the experiment, the position, the number and the size of the holes in the cracking process were determined, the values of the slot depth, the opening angle and the radius of curvature of the cracking tank were determined, and the processing means were determined. A floating cracker with synchronous constant stroke was designed to improve the cracking quality and cracking The invention solves the technical problem that the cracking process replaces the traditional machining process to manufacture the connecting rod of the aeroengine, reduces the working process, reduces the production cost, simplifies the processing equipment and tools and strengthens the comprehensive mechanical performance of the aeroengine connecting rod.