April issue of Corte & Conformação de Metais is online. A preview of first edition of “Expomafe - Brazil International Machine Tool Exhibition”, which will take place from May 9th to 13th in São Paulo, is highlighted on page 18. The event will bring together manufacturers and suppliers of machines and equipment focused on metal processing and technology developers that can be integrated into industrial manufacturing processes, such as automation and additive manufacturing. See on page 10 the article “Technological and economically viable process windows for the assured processing of components in electronic production”, whose object is the study of welding by brazing of miniaturized metallic components used in electronic devices, also addressing the printing with paste and the positioning of pieces of this class. Read on page 30 the article “Determination of material parameters by bulging test”, a study dealing with the characterization of metallic alloys used in the manufacture of tubes as an alternative procedure that consisted in the use of an algorithm, which allows the combination of differential evolution methods. This issue also introduces the up to date “Tube bending and cutting companies" directory.