Specific Energy Consumption (SEC) Model for Types of Two Different Production of Fittings which is Reinforced by Chip of Copper and Brass

Abstract

TS 11 EN 10242 Pipe fittings (fittings) manufactured according to standards and geometries; It is widely used in many sectors such as aerospace, automotive and machinery production, mainly in building natural gas and water installations. Threading of the fittings to the materials at one time is usually carried out on CNC mill and on special manual threading machines. In addition, fittings are also thread by universal lathes. Especially in America and India, aluminum alloy fittings manufactured for the automotive industry and mechanical equipment are alloyed via chips of brass and copper in this study. Pipe fittings for the first time in the literature, considering industrial mass production conditions, made in gradual threading via lathes and milling by tap tool were evaluated comparatively. In this study, speed, alloy type, and machine type are selected as parameters and the conditions which make optimum specific energy consumption (SEC) by using energy power conversion equations are determined. Taguchi method was used to determine the optimum conditions. microstructure and hardness changes in the obtained materials were investigated. When the results of SEC were examined, it was observed that 73,91% of the processing type and 26,01 % of the rotational speed were effective. According to these results; CNC milling as the machine type, 180 RPM as the number of revolutions, and 8% brass reinforced 6061 aluminum alloy as the alloy type, conditions were obtained.