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the interests in the review of metallicpowder materials for additive?

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si4520 一阶会员 用户来自于: 广东省深圳市
2023-09-18 20:50

The technical review of metallic powder materials foradditive manufacturing in dentistry mainly focus on three aspects:the performance requirements of metallic powder for additivemanufacturing in dentistry, the process parameter validation ofadditive manufacturing and the performance of printed test piecesafter additive manufacturing and forming.The performancerequirements of metallic powder for additive manufacturing indentistry include but not limited chemical composition (oxygen,hydrogen and impurity elements), sphericity, powder particle sizeand size distribution, fiowability, apparent density, and tap densityFor process parameter validation of additive manufacturing, it is necessary to clarify the printing parameters of the printing equipmentand printing equipment systems compatible with the productincluding but not limited to laser power, spot diameter, scanninginterval, powder spreading thickness and scanning speed. In additionit is necessary to submit the validation and verification report onvarious parameters and specify the relevant parameters in producttechnical requirements (PTR) and instructions for use (IFU).Theperformance requirements for the printed test piece after additivemanufacturing and forming include the verification of the mechanicalstrength of the printed test piece in each direction, which shouldsimulate as far as possible the actual use of the dental restorationsin clinical application, with its fatigue and resistance to repeatedbending taken into consideration. The corrosion resistance, inclusionsand porosity, and warping of the printed test piece should also beverified.


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发布时间
2023-09-18 20:50
更新时间
2023-09-18 20:50
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