CREEM2024

CREEM 2024 - XXX Congresso Nacional de Estudantes de Engenharia Mecânica

ESTUDO DO ROSQUEAMENTO INTERNO DE LIGA DE ALUMÍNIO COM FLUIDO DE CORTE À ALTA PRESSÃO

Submission Author: RAPHAEL SILVA LINS , MG , Brazil
Co-Authors: RAPHAEL SILVA LINS, Breno Siqueira, Paulo Sergio Martins, Marcio Bacci Da Silva, flaysner Magayver Portela
Presenter: RAPHAEL SILVA LINS

doi://10.26678/ABCM.CREEM2024.CRE2024-0031

 

Abstract

AA6063-T6 aluminum alloy is commonly used in various industrial sectors such as the automobile, marine and aerospace industries. In internal threading, numerous factors can influence the premature breakage of threading taps during the process. Among them, some stand out, such as: ductility of the material, hardness, machine timing error, excessive cutting speed, dimensional error, geometric error of holes, chips at the bottom of the hole, lubricity of the cutting oil used, coating of the tools and type of threading head used. Considering the dynamics of the internal threading process, lubrication-cooling systems and helix angles using high cutting speeds are of great importance in the quality and production time of threads. The motivation for this study, which aims to analyze the effect of high pressure using an axial compensation threading head, measuring the axial force and torque when threading in blind holes. The machining tests were carried out on a CNC machining center, using M8 x 1.25 mm taps, without cover, with helix angles of 15º and 45º. The operation was carried out with pressurized cutting fluid with working pressure of 15 kgf/cm2 and 35 kgf/cm2 and two cutting speeds, 40 m/min and 60 m/min. To carry out the tests, a complete factorial design was used with 3 factors and 2 levels. According to the results obtained, it can be concluded that the fluid application pressure and the helix angle combined have an influence on the axial force and torque in the internal threading process.

Keywords

Ligas de alumínio, ângulo de hélice, Refrigeração em alta pressão, Rosqueamento Interno, Torque, forças axiais

 

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