Banca de DEFESA: EUSTAQUIO GERALDO ALVES
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.STUDENT : EUSTAQUIO GERALDO ALVES
DATE: 27/03/2023
TIME: 08:00
LOCAL: On-line
TITLE:
Evaluation of tensile strength of machined and formed threads into holes manufctured by friction
KEY WORDS:
Machined Threads, Flow drilling, Tensile Strength, Friction.
PAGES: 109
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUBÁREA: Processos de Fabricação
SPECIALTY: Processos de Fabricação, Seleção Econômica
SUMMARY:
Threads are fastening elements of great importance in the assembly of mechanical components. The mechanical industry uses thread profiles and standardized diameters to assemble machines, parts of devices, and other equipment. Among the standard metric thread diameters, M6, M8, and M10 are the main ones, with the M8 diameter being the most used. Therefore, the objective of this work was to measure and compare the maximum tensile load supported by M6x1.00mm internal threads in an aluminum alloy AA 7075-T6, with 1, 3, and 5 threads fillets, manufactured by the machining and forming processes. Screws with 12.9 grade were used to analyse the tensile strength of threads with a displacement speed of 1 mm/min and the dimensions of the specimens with an external diameter of 22 mm and thickness of 2.00 and 3.00 mm. After the tests and the necessary analyses, it can be observed that the machined threads presented more excellent resistance in aluminum AA 7075-T6. On the other hand, the threads manufactured by the conventional drilling process for opening machined and rolled threads showed the highest strengths in the tensile tests. In addition, it can be concluded that the screw used was able to withstand the stresses applied to the thread in AA 7075-T6 aluminum machined and laminated with 5 thread fillets.
BANKING MEMBERS:
Presidente - 2190171 - LINCOLN CARDOSO BRANDAO
Interno - 1860440 - CARLOS HENRIQUE LAURO
Externo ao Programa - 3287310 - ETORY MADRILLES ARRUDA
Externo à Instituição - SANDRO PEREIRA DA SILVA - UFLA