Fracture Resistance of Nd:YAG Laser-welded Cast Titanium Joints with Various Clinical Thicknesses and Welding Pulse Energies

作者: Mau-Chin LIN , Sheng-Chieh LIN , Yu-Tsai WANG , Suh-Woan HU , Tzu-Hsin LEE

DOI: 10.4012/DMJ.26.367

关键词: Joint (geology)Composite materialTitaniumFracture (geology)WeldingPulse (signal processing)MetallurgyBendingScanning electron microscopeNd:YAG laserMaterials science

摘要: The purpose of this study was to evaluate the fracture resistance Nd:YAG laser-welded cast titanium (Ti) joints with various clinical thicknesses and welding pulse energies. A four-point bending test used assess effects specimen (1-3 mm) energies (11-24 J) on Ti dental joints. Fracture evaluated in terms ratio number fractured specimens tested specimens. As for frequencies, they were compared using Cochran-Mantel-Haenszel test. Morphology observed a scanning electron microscope. Results showed that decreasing thickness and/or increasing energy, i.e., welded area percentage, resulted an increase joint. Where occurred, site would be at center weld metal.

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