A computer numerical control (CNC) multi-pass spinning solution to a center lathe retrofit

摘要: This paper suggests a typical scheme for substantially low cost machine upgrading with regard to research and manufacturing activities through the integration of mechanical, electronic software technologies. Computer numerical controlled (CNC) multi-pass spinning process is considered state-of-the-art nowadays in critical applications such as aerospace automotive industries but equipment still an issue. For sake novelty, accuracy repeatability spun products, conventional lathe has been converted into CNC spin-forming by retrofitting generate automatic tool paths two axes spinning. Actuators sensors necessary provide motion mechanical elements mandrel, roller, holder are selected cope requirements this incremental metal forming process. A controller integrated system path G-code required producing cups using retrofitted machine. Rotational speeds together longitudinal transverse movements calibrated. Backlash power screws evaluated displacement control. Different including involute can be generated developed control system. The used successfully produce high processing superior surface quality that reported available literature. Based on experimental investigation under lubricated condition, geometrical productivity was improved optimum exists at 0.6 mm/rev. feed ratio, 200 RPM mandrel rotational speed, seven passes.