燃烧室内壁数字化加工技术研究

针对火箭发动机燃烧室内壁型槽复杂、加工效率低和质量不稳定的难题,利用加工中心数字仿真技术,对加工中心整体装配建模,进行数字化加工工艺过程整体仿真,研究五轴棒铣刀加工技术,革新了原有的螺旋槽片铣刀加工工艺方案,提出薄壁螺旋槽燃烧室内壁零件加工中心高效加工工艺技术方案,加工质量显著提高,加工效率提高近3倍,工艺改进后的零件经过装配热试车考核满足要求.

Study on digitization machining of combustor inner wall

： Since the complicated helical groove on the combustor inner wall ot rocket engine decreases the machining efficiency greatly, the modeling of integral assembly in the machining center and the whole simulation for the digitization machining process were conducted by using digital simulation technology. A high-efficiency machining technical proposal for machining the helical grooves on the combustor inner wall is proposed. The five-axis stick milling cutter machining technology was adopted instead of the former helical groove milling cutter machining approach.Therefore, the machining quality was improved obviously and the machining efficiency was increased by nearly three times.