Tungsten additive manufacturing ntawm collimators

Tungsten additive manufacturing yog ua tiav los ntawm kev siv Selective Laser Melting (SLM) technology. Cov hmoov hlau yog melted thiab cov khaubncaws sab nraud povtseg yog fused ua ke siv lub laser infrared. Txoj kev tshawb no qhia txog kev muaj peev xwm ntawm tungsten additive manufacturing rau collimator daim ntaub ntawv. Lub pinhole collimator nrog lub zog ceev ntawm 348 J / mm3 tau luam tawm siv 1070 nm IR laser. Raws li tau piav qhia hauv tsab xov xwm no ntawm kev tsim cov tooj liab ntxiv, lub wavelength ntawm IR laser tuaj yeem hloov kho rau cov khoom luam tawm. Qhov kawg 3D luam tawm tungsten ib feem yog qhia hauv qab no, nrog rau SEM dluab ntawm qhov chaw microstructure.
Qhov tshwm sim microstructure yog pom hauv SEM cov duab ntawm daim duab saum toj no yam tsis muaj kev kho mob tom qab. Cov txheeb ze siab ceev ntawm qhov kawg tungsten luam tawm qhov chaw, mus txog 98% qhov ceev ntawm cov ntshiab tungsten (19.2 g.cm-3), tuaj yeem ua tiav ua tsaug rau kev tsim cov tsis xws li laser zog ceev.