Application of a homemade procedure for manufacturing of a rod mechanical spare part

摘要

This paper presents the application of a homemade procedure for manufacturing of mechanical replacement parts installed in machinery to produce steel rod frames. The homemade procedure was applied to the imported rod part selected here due to its paramount importance for the proper functions of the equipment, the intensity of service loads, its high costs and poor availability. The imported rod part, which is produced by the original manufacturer of the equipment, is used to move a hammer part up and down to correctly position the steel wire during welding. It ensures that the steel rod frames can be properly constructed. The homemade procedure here adopted for manufacturing of the rod part is based on obtaining comparable chemical composition, microstructure and mechanical properties of the imported part. The main goal is to reduce the costs and delivery time for the acquisition of the rod part as well as have an adequate stock of it. The index used here for the assessment of the homemade procedure applied to the rod part is less than unity (0.18). This means an economic efficiency in the equipment of about 28.0% and confirms that the manufacturing of the rod part in Brazil is a viable procedure.