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is transferred to nut to realize automatic preload. Structure of the CGMA is shown in Figure 2. To make the screw shaft pass through, the CGMA is designed to be hollow. With changing the current of the drive..., and one third of the maximum axial load is generally chosen as the ball screw preload force. If select the double- nut ball screw of 2504 version as preload object, the output force of CGMA should......
]. The diameter of the large loop gives the charge transfer resistance while that of the small one is equal to the resistance of the corrosion product film. It can be observed that each loop for the Mg-Al-Pb-La alloy is larger than the corresponding one for the Mg-Al-Pb alloy, implying that the former exhibits higher corrosion resistance than the latter. The calculated values for the charge transfer......
regulations of fuel efficiency for lower CO2 emission and improve passenger safety standards. Quenching & partitioning (Q&P) steel is one of the leading examples of this new generation AHSS... welding [4, 18]. Resistance spot welding (RSW) is one of the main joining methods used in the automotive industry, and there are several thousand resistance spot welds on each vehicle. Investments......
An aluminium plate AA 5052-H32 with thickness of 0.6 mm supplied by Gulf Aluminium Rolling Mill Co., Bahrain was used as the base metal while the filler wire utilised is aluminium ER5356 with thickness... all the weldments except for samples 4 and 9. According to CAO et al [4], improper selection of process parameters which often produce irregular weld shapes has been identified as one of the causes......
-objective optimization problem, as well as two suggested trade-off design points are presented, compared and discussed. For the two suggested points, performance at one objective function is deteriorated... for the manufacturing companies to produce high variety of products with the lowest possible costs. In order to solve the trade-off between product, variety and cost several approaches are proposed; one......
Germany, part of Springer Nature 2019 Abstract: Superalloys are grouped as hard-to-cut materials with relatively poor machinability. Tool wear is considered one of the main machinability attributes... under both MQL and dry modes. Figure 2 Experimental setup: 3 Results and discussion Tool wear is one of the main machinability index [35–38]. Complementary studies towards better understanding......
in industrial and manufacturing processes including polymer technology, wire drawing, hot rolling, production of food and papers [14–21]. Researchers are looking forward to large rate of investigation... from Figures 6 and 7, respectively. It has indicated that the deceleration of the fluid has been attained around the disk due to enhancement of magnetic field strength for both the cases. One can see......
of which is based on dislocation density evolution. KUHLMANN et al [27] proposed one of the first models for isothermal recovery by considering evolution of flow stress. Later, NES [28] introduced...]. In this study, a dislocation density-based model is presented for non-isothermal annealing in order to use the dislocation density, which is one of the outputs of ETMB model. HUMPHREYS and HATHERLY [46......
and relatively easy to develop; thus, it is more common than computational intelligence and mathematical programming methods. For instance, ARIMA is one of the most popular models used in stationary... Monte-Carlo method is one of the most effective methods widely used in addressing energy demand forecasting problems with uncertain inputs changing over time [64]. Monte-Carlo can provide probabilistic......
, rotational speed, diameters of shoulder and pin and tool tilt angle. FSW parameters significantly affect the weld strength. Tool tilt angle is one of the significant process parameters among the weld.... Figure 1(a) represents the FSLW configuration. The microstructure of BM is composed of grains that are coarse and elongated and are oriented along the rolling direction (Fig. 1(b)) with the average grain......
