ENSAIO DE USINAGEM DO AÇO 1045: critérios para determinar melhores condições de usinagem

Abstract

This work aims to present the best machining condition for the CNC turning process. in order to determine the shortest time and reduce the cost of machining an eccentric shaft. For this, the operating conditions of the machine were checked and it was verified that the tool was working with a parameter outside the tolerance limit specified by the manufacturer. To quantify the types of wear that the tool was suffering, the last 10 inserts that were used, for analysis, were separated using a magnifying glass. He found that the majority were suffering a fracture, because they were working outside the maximum allowed tolerance and also because the process was interrupted, then the practical experiment started, three batches of 150 pieces were separated, each batch varying between the minimum advance , average and maximum 0.14. 0.22 and 0.3 mm / rev and same cutting speed 150 m / min. for all lots. After the test, the best condition can be observed through the chip profile presented and through the calculations, it was found a reduction of critical tool wear, reduction of time, cost and rotation in the process.