Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Using FCUB function in CNC programming to mitigate failures in drilling process with gun drills
Submission Author:
Marcus Vendrusculo , PR
Co-Authors:
Milton Polli, Marcus Vendrusculo
Presenter: Marcus Vendrusculo
doi://10.26678/ABCM.COBEM2023.COB2023-2370
Abstract
The present study aims to enhance the performance in the utilization of gun drills in drilling process, which consistently experience breakages when using standard CNC functions for such processes. During this process the variation of feed parameters is sensitive and crucial for achieving precise, finished results without waste. Given the significant geometric and parameter complexity involved, there arose a need to employ new strategies supported by advanced technologies. Through the aid of a parallel Python program, we were able to significantly improve the outcomes. Throughout the study, tests were conducted replacing the CNC functions FNORM and FLIN with FCUB. The FCUB function utilizes a cubic equation, allowing for smoother machining.Comparative analysis with the assistance of images revealed an improvement in the hole surface finish, both at the entrance of the gun drill and along its entire machined length. All parallel processes to CNC programming, such as drill sharpening and cutting fluid usage, were monitored and parameterized to ensure no interference in the current analysis and consequently minimize disruptions in this research. The optimized process resulted in a 76% reduction in tool breakage rates and a 288% increase in the production of parts using the same tool, tripling its lifespan.
Keywords
CNC, Programming, FCUB, Gun drills, materials, Processes
