A Novel Method For Analyzing Working Performance Of Milling Tools Based On Reverse Engineering

Aiming at solving the problems of small footage, easy skid and immovability of milling during the process of milling multistage fracturing ball seats by milling tools, and considering simultaneously the difficulties of establishing a full-sized simulation model of the milling tool due to the irregular structure and wide variety, a novel method for analyzing the working performance of milling tools based on reverse engineering was proposed to improve the working efficiency on the premise of construction safety. In this paper, a 3D scanning model of the MX97 milling tool was obtained through a 3D laser scanner, and a full-sized simulation model was established based on reverse engineering for finite element analysis. Besides, an experimental system for milling tools was developed to verify the simulation result. Also, the systematic analysis of the influence rule of working parameters on working performance based on the full-sized simulation model was performed, and a selection database of working parameters in the form of charts was established. The analysis results show that the error between simulation and experiment is only 9.9%, which verified the accuracy of the analysis method based on reverse engineering. The surface morphology of the workpiece after simulation and experiment are both circular cuts, and the bottom surface of the milling tool should be designed as an eccentric structure to avoid the zero point of cutting speed that affects the working efficiency. WOB and rotating speed of milling tools affect and interact with each other, which jointly determine the working performance of milling tools. It is necessary to comprehensively use the data from the selection database to accurately determine the working parameters to improve the working performance of the milling tool.