Projeto Seis Sigma

: processo TIG aplicado à soldadura de cobre

Abstract

Six Sigma was invented by Motorola in the 1980s, and was for years seen as a way to implement Quality. The aim is gain competitive advantage by helping organizations improve their process in order to reduce errors and defects in products and services. In an increasingly competitive landscape, only companies that understand the market needs , in order to respond effectively, can aspire to achieve sustainable sucess. The concept has developed over the years, and became a management strategy adopted by most organizations worldwide. The aim of this work, is fully understand the principles of the methodology, analyse the application fields to identify similarities with other methodologies, and analyse the set of tools for its implementation and frame his subject in application of copper, welded by TIG welding process. DMAIC, is mainly applied to improvement programs or fixing problems in existing entities, while DFSS is used to design and develop new entities. In Comparison with PDCA, DMAICS reveals greater propability of sucess. In case study, based on Six Sigma, sitting in the DMAIC road map, the autor will make analysis based on historical data of welded construction available in Instituto de Soldadura e Qualidade and a will also proceed with the analyse of defects in the applicatin above described. It is foreseen in this study, the identification of types of defects, most frequently obtained in copper, using TIG as welding process, their cause and effects.

Date of Award	Oct 2012
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Pedro Marques (Supervisor) & José Carlos Martins do Outeiro (Supervisor)