CAJ | 학술논문

某火箭发动机采用 C/SiC复合材料的喷管，并在喷管上沉积一个带焊接头的铌环，通过该铌环与发动机金属头部进行电子束焊接。现需要车削完成喷管铌环的焊接台阶等特征。本文介绍了一种工装设计的新思路，即通过组合车削工装寻找定位基准。通过实际加工证明：该工艺技术完全满足焊接台阶的形位公差要求，并有效地解决了 C/SiC 复合材料脆性断裂等难题，最终满足了发动机的性能指标。
모화전발동궤채용 C/SiC복합재료적분관，병재분관상침적일개대한접두적니배，통과해니배여발동궤금속두부진행전자속한접。현수요차삭완성분관니배적한접태계등특정。본문개소료일충공장설계적신사로，즉통과조합차삭공장심조정위기준。통과실제가공증명：해공예기술완전만족한접태계적형위공차요구，병유효지해결료 C/SiC 복합재료취성단렬등난제，최종만족료발동궤적성능지표。
A model of rocket engine adopts the ceramic matrix composites nozzle, on which a niobium ring was deposited to connect to the engine by means of electron beam welding. For turning the welding stage of niobium ring, this paper introduces a kind of process equipment design train of thought. By using combining process equipment to find new positioning base, it effectively solved the problem of the fracture of ceramic matrix composites. This technology completely satisfied the requirements of tolerance of welding stage by turning results. And it improves the performance of the engine much further.