GEOMETRIC SPECIFICATION OF BEVEL WRAPPING OF DOUBLE WALLED TUBES, PREDICTION OF FAILURE FROM MATERIAL PROPERTIES

Kataria Mahendra B, Khunt Hardik A

Abstract: Bundy tube, is type of double-walled low-carbon steel tube manufactured by rolling a copper-coated steel strip through 720 degrees and resistance brazing the overlapped seam in a process called Bundy welding. Double wall brazed steel tubing is constructed from copper coated steel strip which is rolled twice around laterally, then furnace brazed to produce a tube of double wall structure, with a clear, scale free coppered bore, a plated external surface and a consistently uniform wall thickness. PROBLEM BY BUNDY TUBEING INDIA LIMITED Given 17 parameters namely level, pH, chemicals (KCN(Potassium cyanide), CuCN(Copper Cyanide), Rochelle Salt, carbonate) each in tank number 8 and 9 respectively with strip thickness, strip hardness, plating thickness at left, centre and right to predict the percentage of wastage in the tube production. Prediction of wastage by company: Nominal diameter(d) Wall Thickness(e), Strip thickness (f), Bevel angle (?), Bevel outer angle(?o), Bevel inner angle (?I), Bevel outer length (l), Circumference (cf)

Keywords: Mathematical solution, Mat lab, Bundy tube

DOI: https://doi.org/10.15623/ijret.2015.0407058