Metal additive manufacturing technology is an advanced manufacturing technology based on the discrete-accumulation principle,which has brought a subversive progress to the design and manufacture of liquid rocket engines.As the core component of liquid rocket engine,the thrust chamber can realize the lightweight and integrated design and manufacturing of the structure,as well as the overall manufacturing of the flow channel structure of the hot end components such as the combustion chamber,improve the product performance and reliability,shorten the manufacturing cycle and reduce the manufacturing cost.In this paper,the application of metal additive manufacturing technology in the thrust chamber of liquid rocket engine is reviewed,and the future development of the technology is discussed.
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