Influence of coefficient of friction between punch-blank interface on formability of friction stir welded aluminum tailor welded blanks – An experimental and finite element simulation investigations

Solar energy plays a vital role in power generation as a part of renewable energy source. Due to the intermittent nature of solar input and to increase the power output a dual-axis solar tracker is considered initially, and the power output is stored in the battery. The power extracted from the solar is enhanced with a dual tracker compared with other techniques. Moreover, the stored power in the battery is effected by cycles of charging and discharge. To aid and improve the performance of batteries a novel smart battery protection scheme is introduced. This scheme considers the battery parameters such as voltage, current, and temperature within the prescribed limit. Also, during fault conditions, this scheme provides safe operation of the battery which enhances the battery life.

Section: Resultsmentioning

confidence: 99%

Implementation of dual-axis solar tracker using smart battery protection system

Mohammed,

Battina,

Majahar

et al. 2024

“…It works on the tenet that, in terms of Euclidean distance, the chosen option should be the one that is closest to the positive ideal solution (PIS) and the farthest from the negative ideal solution (NIS). This method, which ranks the options according to how close they are to the ideal answer, is simple to use and efficient for handling MCDM problems [20][21][22][23].…”

Section: Optimization Using Topsis Methodsmentioning

confidence: 99%

Experimental investigations on coated copper wire and annealed copper wire electrodes in wire EDM machining through a comparative assessment employing the TOPSIS technique

Prathap Varma,

Harish,

Battina

et al. 2024

Self Cite

Metals that are electrically conductive but are difficult to work with are typically machined using WEDM (Wire Electric Discharge Machining). The production of tiny components, which are challenging to mill using earlier non-traditional machining techniques, has undergone a substantial transformation thanks to these machines. Two wire electrodes coated copper wire and annealed copper wire electrodes are used for the testing in this investigation, and the analysis is completed utilizing the tool material. The workpiece material, D2 Steel, was cut into cubes that were 10 mm thick for the experiment, and a wire electrode with a diameter of 0.25 mm was used. Using an L27 orthogonal array, six input variables were employed at three different levels in the testing. The TOPSIS technique is utilized to optimize the output variables, leading to the determination of various output parameters, including Material removal rate (MRR), Kerf width (KW), tool wear rate (TWR), and surface roughness (SR). The chosen input variables include wire tension (WT), a gap voltage (GV), input current (IP), wire feed rate (WF), pulse off time (Toff), and pulse on time (Ton). The 10 mm-wide D2 steel was milled using two wire electrodes, and an ANOVA table was made to identify the factors that had the greatest impact on the WEDM parameters. The rank and ideal Wire EDM parameter values must be calculated using main effect plots and tables of replies. From this investigation, we can also draw the conclusion that for machining D2 steel, annealed wire electrodes provide greater MRR than coated wire.

“…In their investigations, the straight square pin profile exhibited good formability and mechanical properties in comparison to the others. Few researchers [18] used different lubricants to examine (experimentation and simulation) the influence of the friction coefficient on the TWB's formability. The results revealed that the Teflon sheet used TWB exhibited better formability results as compared to the other lubrication conditions.…”

Section: Introductionmentioning

confidence: 99%

Effect of double-pass friction stir welding and base materials position on the microstructural and mechanical behaviors of the dissimilar aluminum welded joints of AA6061 and AA2017

Nukathoti,

Vanthala,

Battina

et al. 2024

Self Cite

Friction stir welding (FSW) is a method of joining solid materials, where the parent metal's melting temperature is below the point of amalgamation. FSW is a successful method for combining various ferrous and non-ferrous matrix materials. Many researchers' studies suggested that FSW is suitable for both soft and high melting-point materials by changing the conditional attributes. A defect-free dissimilar weld joint of the alloys AA2017 and AA6061 was fabricated for the current investigation, and the effect of multi-pass friction stir welding (MPFSW) on the development of mechanical and different microstructural behaviors has been investigated. Welding conditions were a constant 1600 rpm weld tool rotational speed, a transverse speed is 32 mm/min, and a tilt angle of 0°. As a consequence of the pinning effect, the results showed that increasing the number of welding passes in FSW from single to double improved the particle dispersion, which in turn improved the tensile strength, and micro-hardness of the FSWed joint. The primary objectives of this study investigate the strength that was improved because of the rise in the number of passes as well as the effective bonding of the materials' weld interface, which gives tailor-welded blanks (TWBs) a considerably stronger joint. The findings revealed that the TWB joints' metallurgical and mechanical properties are extremely varied from single-pass to double-pass, and the position of the base materials can significantly affect the joint properties that are produced.