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Mendoza Barrera Cesar Jair 3IVA
Trabajo de Elementos Mecánicos Calcular el tiempo total de maquinado en sistema métrico para una barra de aluminio de 4 pulgadas de diámetro inicial la cual se reducirá a 3 pulgadas de diámetro final, y su longitud es de 150 milímetros. 1) pt=(Di-Df)/2 pt=(101.6pulg-76.2pulg) =(25.4/2)=12,7mm
2) Desbaste= 12mm afinado= 0.7mm
3) Desbaste Vc= 6 S=0.4
Afinado VC=93 S=0.13 4) MD= 12/3 = 4 pasadas
MA=0.7/0.1= 7 pasadas
5) tiempo de desbaste Td= (L*M/n*s)= (150*4/61*0.4)=(600/24.4)= Td=24.59
6) tiempo de acabado Ta=(L*M/n*s)= (150*7/93*0.13)=(1050/12.09)=Ta=86.84
7) tiempo de maquinado final=Td+Ta
Td=24.59 + Ta=86.84 = 111.43minutos
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Enviado por: Cesar Idioma: castellanoPaís: México