Hoje em dia, mais do que nunca, num mercado cada vez mais global e competitivo, as organizações necessitam de estar constantemente à procura da inovação, do aumento da qualidade dos seus produtos, assim como da produtividade global dos seus processos. A pandemia de COVID-19 veio aumentar esta obrigatoriedade pela melhoria contínua. O setor automóvel é caracterizado como sendo uma das áreas de negócio mais compe...
A Constituição Federal de 1988 assegura a livre associação e a unicidade sindical. Deste modo, cabe aos sindicatos a defesa dos direitos e interesses da categoria representada sem a intervenção estatal. Essa regra encontra abrigo legal nos termos do inciso I do artigo 8.º da norma fundamental. No entanto, embora a nação brasileira demonstre um contexto histórico de lutas por direitos e melhorias na condição dos...
From conventional welding techniques to electron or laser beam, this book provides a comprehensive overview about processes, metallurgy, quality assessment, testing, and numerical simulation in welded structures.
Submitted by jualmei@stj.jus.br (jualmei@stj.jus.br) on 2020-08-07T03:36:17Z No. of bitstreams: 2 garantismo_juridico_direito_silva.pdf: 426547 bytes, checksum: 1890833f60451c689c5edb5ef4f2aa44 (MD5) license.txt: 1239 bytes, checksum: c9b4c351324448672315a00808efb725 (MD5); Approved for entry into archive by betanial@stj.jus.br (betanial@stj.jus.br) on 2020-08-15T19:00:32Z (GMT) No. of bitstreams: 2 garantismo_...
Thermoplastic welding is currently well implemented in the market, with several competitive and suitable processes, ranging from simple hot plate to ultrasonic welding. By its side, laser welding of plastics is still in a relatively early stage of research. This process is one of the most recent in the welding of thermoplastics and of great interest in the market. The welding technique is based on heating the t...
Machining processes remain an unavoidable technique in the production of high-precision parts. Tool behavior is of the utmost importance in machining productivity and costs. Tool performance can be assessed by the roughness left on the machined surfaces, as well as of the forces developed during the process. There are various techniques to determine these cutting forces, such as cutting force prediction or meas...
Friction stir welding is a relatively new joining technology, that has been succefuly applied in the connection of large and complex structures, with considerable progress being made throughout time. The development of this new solid-state welding technique has opened up new possibilities for joining similar and dissimilar materials, allowing the obtention of extremely interesting mechanical properties. This we...
Welding is a conventional joining process that has followed the recent developments in other manufacturing processes, continuing to be an extremely used and investigated process. Several technologies developed in other areas of knowledge have converged in the area of welding, allowing significant improvements in the quality of the products obtained and in the increased productivity of the processes. Although so...
Ductile cast irons have known significant developments, closely following the evolution in mechanical strength recorded in other metal alloys. In fact, the chemical composition and treatments that ductile cast irons can currently be subjected to, give them mechanical strength far superior to the ductile cast irons that existed three decades ago, with rupture stresses in the order of 500 MPa and even higher. The...