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Document Type:Latin Dissertation
Language of Document:English
Record Number:55122
Doc. No:TL25076
Call number:‭1434464‬
Main Entry:Nelson Omar Tello
Title & Author:Using quality tools to decrease angular distortion of steel plates during shielded metal arc welding fillet welding of T-joint structural membersNelson Omar Tello
College:California State University, Dominguez Hills
Date:2006
Degree:M.S.
student score:2006
Page No:46
Abstract:This quality improvement project seeks to reduce future rework due to excessive angular deflection of T-section structural steel beams assembled using manual double fillet shielded metal arc welding (SMAW) at AK & Partners Heavy Industries in Jubail, Saudi Arabia. An FMEA (Failure Modes and Effects Analysis) was completed with the aim of optimizing the current process employed by the company. A designed experiment (DOE) involving factors and levels recommended by the project team and approved by AK & Partners' management was also conducted. The results of the DOE confirmed the effects of two of the techniques found in the literature review. A 97% confidence level that the type of weld pass sequence is significant to angular distortion was found. In addition, a 94% confidence level was found that the use of tack weld plates is significant to angular distortion.
Subject:Applied sciences; Mechanical engineering; 0548:Mechanical engineering
Added Entry:W. Trappen
Added Entry:California State University, Dominguez Hills