Figure 4 - available via license: Creative Commons Attribution 4.0 International
Content may be subject to copyright.
Source publication
The Mg/Al composite plate was developed in aerospace and other fields. At present, through the corrugated rolling method, the bonding strength of Mg/Al composite plate could be increased and the warpage could be reduced. However, this still requires the straightening process to reach the parameters' range. In this work, the original interface morph...
Contexts in source publication
Context 1
... thermal straightening process model of Mg/Al corrugated composite plate was established by Abaqus finite element software, as shown in Figure 4. Figure 5 showed a single straightening unit model. ...
Similar publications
In this study, composite plates of 6061/TA1 were successfully manufactured using additive friction stir deposition (AFSD). The impact of preheating temperatures (room temperature, 100 °C, 200 °C) on the interfacial microstructure and interface mechanical properties at various deposition zones was studied. The results showed that as the preheating t...
Citations
... Therefore, an increasing demand is felt for the use of these composites due to having continuous progress in science. Nowadays, ALMCs have found usages in many fields of daily life [18]. These kinds of composites could be used in automotive and aviation industries [19,20]. ...
... Additionally, the wear debris made between regions two and three is a zone void and crack formation. Therefore, the conditions of material, environment and sliding wear severely effect the compositional features and extents of these subsurface regions, which are established rapidly [18]. ...
In this study, hybrid AA1050/Al2O3/TiO2 composites have been produced via combined liquid casting and powder metallurgy techniques. Degassing was utilized to improve the wettability of molten aluminum alloys, and then successful bonding was generated between aluminum matrix and reinforcement particles during the powder metallurgy technique. As the base matrix and reinforcements, AA1050 alloy, Al2O3 and TiO2 particles were taken, respectively. Then, content values of 5Wt.% of Al2O3 in the mesh size of 20 μm and 2.5 and 5 wt. % of TiO2 particles with mesh size of 5μm were added to the AA1050 matrix. For each composite sample, ceramic particles were warmed to 600°C in order to improve wettability and distribution. An identical scattering of subdivisions was observed through aluminum (as matrix) in the microstructural study. To measure the wear resistance, the mechanism of rotary wear test was used. The achieved results illustrated that the fabrication of hybrid composites is an ideal approach to improve the wear resistance of Al-based composites. By increasing of TiO2 Wt.% up to 5% for all composite samples, the wear rate improved to less than half of the monolithic Al alloy value for each composite sample.
The medium and thick plate was developed in modern industrial production. In the production process, the shape defects occurred easily and it could be straightened generally by flattening machine. However, due to the offset relationship between the geometric center layer and the stress neutral layer in the flattening process, the straightening force was inaccurate and the flattening accuracy was reduced. Therefore, there was an error between the flattening model and the actual process. In this work, the geometric center layer of medium thick plate was treated as the boundary, at the same time, the bending deformation in the plate was transformed into the elastic-plastic deformation of two connected regions. Afterwards, combined with the advantages of sub domain boundary element method, the stress state of geometric center layer was calculated accurately. Besides, the geometric center layer of medium thick plate does not coincide with the stress neutral layer was proved, meanwhile, the calculation formula of neutral layer offset was given and its variation law was discussed. Subsequently, the influence of neutral layer offset derived by boundary element method on straightening accuracy was studied through Abaqus software and bending experiment. The results indicated that the flattening results were closer to the experimental results by considering the neutral layer offset calculated by the boundary element method. The flatness error was less than 5% and the residual stress error was 8%, which could improve the flattening accuracy and optimize the flattening model.
