Excellent mechanical properties and fatigue performance of Al/Al2O3 metal-based nanocomposites caused to introduce this material as a good candidate for various applications. In this regard, the preparation and characterization of this composite can be considered as a hot issue for research. The study was carried out in several steps including: (i) preparation of Al/Al2O3 metal-based nanocompos...

Abstract. The variation of tool performance and nonuniform process parameters in metal forming are some the factors that complicate life modeling analysis such processes. In this work, a brief discussion about machine learning analyzing extrusion as well modeling, an implemented work using to predict failure modes for H13 Steel die used 6063 Aluminum hot is presented. conducted on set steel die...

Introduction: To investigate Ca(OH)2 extrusion from the apical foramen in relation to the placement mode. Methods: 200 teeth, prepared with ProTaper files with and without apical patency, were divided in Groups A and B respectively, and filled with Ca(OH)2 at 1 and 3 mm short of working length, using K-files manually and with mechanical spiral techniques (Pastinject/Lentulo) at 500 and 700rpm. ...

As an alternative to powder-bed based processes, metal parts can be additively manufactured by extrusion additive manufacturing. In this process, a highly filled polymer filament is deposited and subsequently debindered sintered. Choosing proper orientation of the part that satisfies requirements debinding sintering processes crucial for successful manufacturing process. To determine optimal de...

immature teeth have a large apical opening and thin divergent or parallel dentinal walls; hence, with conventional needle irrigation there is a very high possibility of extrusion. this study was done to compare the apical extrusion of naocl in an immature root delivered using endovac and needle irrigation.eighty freshly extracted maxillary central incisors were decoronated followed by access ca...