Influência da velocidade de conformação à frio na microestrutura e nas propriedades mecânicas de um aço SAE 1013 utilizado na produção de vergalhão CA 60

Abstract

CA 60 rebars produced by cold forming processes are the main products used in the construction industry. And industries are currently seeking more and more productivity at a lower cost, and for that, studies are needed in the area in order to obtain a product with an increasingly better quality that meets the norms and requirements of the market, which in the case of CA 60 rebar it is the norm NBR 7480: 2007. For this reason, the objective of this work was to evaluate the influence of the conformation velocity on the mechanical and microstructural properties of SAE 1013 steel used in the production of CA 60 rebar. The base of this study was the tensile test of SAE 1013 steel subjected to 2 forming processes: cold rolling and drawing with three different forming speeds each. In this study, values of Resistance Limit, Flow Limit and Deformation were obtained. The values of these properties ranged from 470 to 784 MPa, for the tensile strength limit, and from 332 to 744 MPa, for the flow limit, approximately.