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Additive manufacturing (3D printing) technology has been applied in the production and manufacturing of complex special-shaped, high-precision, and key important logging instrument parts due to its characteristics of unlimited modeling structure, short production cycle and high mechanical properties. Through the research on model optimization, forming parameters and printing support of special-shaped heavy parts of logging instruments, the processing problems of density probe shell with internal cavity and microporous special-shaped plates, multiple sealing parts, space curved turbines, impellers and thin-wall grid radome that are easy to deform are solved. At present, the instrument plate body, turbine, guide wheel and density probe housing have been mass-produced, and the radome meets the design requirements after assembly and testing. At the same time, through the research on the cross-sectional growth process of the same material, the trial production of samples was completed, and the 140MPa tightness and 30 tons of ultimate mechanics were tested, and the samples were sealed, and all parts were intact. It is proved that the additive manufacturing craft meets the design requirements. Meanwhile, it establishes the foundation of upcoming integrated molding craft of components used to be finished by welding.
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