Open AccessA quality and cost approach for welding process selection
Author(s) -
César Rezende Silva,
Valtair Antônio Ferraresi,
Américo Scotti
Publication year - 2000
Publication title -
revista brasileira de ciências mecânicas
Language(s) - English
Resource type - Journals
ISSN - 0100-7386
DOI - 10.1590/s0100-73862000000300002
Subject(s) - welding , gas metal arc welding , gas tungsten arc welding , quality (philosophy) , process (computing) , work (physics) , rework , shielding gas , shielded metal arc welding , process engineering , computer science , mechanical engineering , manufacturing engineering , arc welding , engineering , philosophy , epistemology , embedded system , operating system
The aim of this work was to propose, apply and evaluate a methodical approach to select welding processes in a productive environment based on market requirements of Quality and Costs. A case study was used. The welds were carried out in laboratory, simulating the joint conditions of a manufacturer and using several welding processes: SMAW, GTAW, pulsed GTAW, GMAW with CO2 and Ar based shielding gases and pulsed GMAW. For Quality analysis geometrical aspects of the beads were considered and for Cost analysis, welding parameters and consumable prices. Quantitative indices were proposed and evaluated. After that, evaluation of both Quality and Costs was done, showing to be possible to select the most suitable welding process to a specific application, taking into account the market conditions of a company