منابع مشابه
A Study on Fracture Behavior of Brazed Multicrystalline CBN Abrasive Grains During Grinding
This paper analyses the fracture behavior of the brazed BCBN grain by comparison with brazed PCBN grain through grinding test of Nickel-based superalloy. The self-sharpening effect is created by timing micro-fracture behavior for BCBN abrasive grains, but by macro-fracture behavior for PCBN abrasive grains. During grinding with brazed BCBN abrasive grains, the material is removed together with ...
متن کاملMicro Cutting Simulation of Abrasive Grains in the Grinding Process
In the current work we present approach to study the mechanism of the cutting of abrasive grains in the grinding wheel using finite element analysis (FEA). The simulation process is done by separating two abrasive grains from the grinding wheels and the microprocess of material removal in the case of surface grinding is simulated. Modelling was done on the workpiece steel S-7 and material grain...
متن کاملمقایسه fracture strength دندان های قدامی شکسته شده پس از اعمال تکنیک های مختلف re-attachment
چکیده ندارد.
15 صفحه اولFracture strength of orthodontic mini-implants
Objective: This study aimed at evaluating the design and dimensions of five different brands of orthodontic mini-implants, as well as their influence on torsional fracture strength. Methods: Fifty mini-implants were divided into five groups corresponding to different manufactures (DEN, RMO, CON, NEO, SIN). Twenty-five mini-implants were subjected to fracture test by torsion in the neck and t...
متن کاملFracture Strength of All-ceramic Restorations After
Fracture strength of monolithic and bilayered LAVA and e. max lower molar crowns after load cycling was measured and compared. The study included three groups (n = 8) from LAVA zirconia and three groups from e. max lithium disilicate to compare influences of different layers, thicknesses and manufacturing techniques. Prefabricated anatomically designed crowns were cemented to dies made from Z 1...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Precision Engineering
سال: 1960
ISSN: 0374-3543
DOI: 10.2493/jjspe1933.26.476