Response Ant Colony Optimization of End Milling Surface Roughness

Metal cutting processes are important due to increased consumer demands for quality metal cutting related products (more precise tolerances and better product surface roughness) that has driven the metal cutting industry to continuously improve quality control of metal cutting processes. This paper presents optimum surface roughness by using milling mould aluminium alloys (AA6061-T6) with Response Ant Colony Optimization (RACO). The approach is based on Response Surface Method (RSM) and Ant Colony Optimization (ACO). The main objectives to find the optimized parameters and the most dominant variables (cutting speed, feedrate, axial depth and radial depth). The first order model indicates that the feedrate is the most significant factor affecting surface roughness

Electrochemical behaviour of sulphite and hydrazine on the corrosion of low carbon steel in acid medium

221-224<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">The open-circuit potential measurements of low carbon steel (0.05% C) as well as weight-loss measurements at different pH values ranging from 1 to 4 in solutions of different concentrations of two inhibitors sodium sulphite and hydrazine have been investigated in presence of chloroacetic acid solutions. The steady state potential shifted to more positive values by increasing pH from 1-2 while the corrosion potential increased to more negative values at pH 3-4. The corrosion rate increases with decrease in concentration of sulphite and hydrazine.</span

Ultra violet & Infrared Spectra of Arylidene Derivatives of Malonic Hydrazide

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