Optimization of weld bead geometric parameters in a TIG welding process için kapak resmi
Optimization of weld bead geometric parameters in a TIG welding process
Başlık:
Optimization of weld bead geometric parameters in a TIG welding process
Yazar:
Dilsiz, Kadriye Çağla, author.
Fiziksel Tanımlama:
ix, 52 leaves: illustrarions, charts;+ 1 computer laser optical disc.
Özet:
Welding is a process that widely used in many areas of industry. Tungsten Inert Gas (TIG) welding process in several types of welding is often preferred in space and aircraft industry, defense industry, and automotive. The welding should be at the required limits and quality when working under pressure. Visual and physical welding quality determined by welding bead geometric parameters. Weld bead dimensions response variables as front height (FH), front width (FW), back height (BH), and back width (BW). In this thesis, Neuro-regression approach which is hybrid study of conventional regression analysis and artificial neural network. Third order polynomial function is used to design front width response itself. The differences between neuro-regression approach and conventional regression analysis while modeling the weld bead geometric dimensions are examined. Welding speed, wire feed rate, percentage of cleaning, gap, and welding current are taken as input variables of the system during modeling. Effects of welding speed, wire feed rate, percentage of cleaning, gap, and welding current on front height, front width, back height, and back width are expressed. Optimization of weld bead geometric parameters in TIG welding process were carried out by using Differential Evolution, Nelder Mead, Simulated Annealing and Random Search stochastic optimization algorithms. Two different problems of front width are studied. Differential Evolution is selected as stochastic search method to have minimum value of front width as a result of the study. All mathematical calculations are carried in Wolfram Mathematica.
Yazar Ek Girişi:
Tek Biçim Eser Adı:
Thesis (Master)--İzmir Institute of Technology:Mechanical Engineering.

İzmir Institute of Technology: Mechanical Engineering--Thesis (Master).
Elektronik Erişim:
Access to Electronic Versiyon.
Ayırtma: Copies: