Optimization in science and engineering
Nazila Adabavazeh; Mehrdad Nikbakht; Reza Tavakkoli-Moghaddam
Abstract
Purpose: Extent of an application and importance of a welding industry and economic opportunities of this industry need to develop appropriate strategies to pave the way for the economic growth as a strategic industry with sustainable competitive advantage. The high cost of the gas tungsten arc welding ...
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Purpose: Extent of an application and importance of a welding industry and economic opportunities of this industry need to develop appropriate strategies to pave the way for the economic growth as a strategic industry with sustainable competitive advantage. The high cost of the gas tungsten arc welding (GTAW) process in a welding industry due to the advantages of excellent welding quality and low complexity of this process requires management. Therefore, careful study and evaluation in the correct use of the GTAW process with financial resources seems to be very necessary. Modeling leads to efficient decision making along with competitive advantage in strategic planning. Today, by planning, sustainability goals and considerations can also be achieved in addition to achieving economic goals.Methodology: In this study, a linear programming model for the problem of minimizing the cost of the GTAW process according to different automatic or manual conditions is presented by a skilled welding operator. GAMS software is used to solve the problem and validate the proposed model. Finally, to evaluate the applicability of the model, four scenarios of the case study are solved and explained as well as sensitivity analysis.Findings: The results show that from an economic point of view, the proposed model can reduce costs and increase efficiency and customer satisfaction. The proposed approach leads to the improvement of the shielded tungsten arc welding process and the increase of management insight.Originality/Value: Mathematical cost modeling can provide a comprehensive analysis of management decisions. The cost minimization model helps managers to understand the cost structure and behavior. Considering the scope of welding application, minimizing the costs of this activity will lead to a reduction in the total cost of an industry