Portada

CONTROL DE CALIDADTRABAJO COLABORATIVO III

Elaborado porROSEMBERG CHICA VALENCIACC. 18616.875HERNANDO ENRIQUE BOHORQUEZCC. 19259156OSCAR OSWALDO PEACC.MANUEL MAURICIO SALGARCC.Grupo302582_23

Andrea Isabel BarreraTutora Control de calidad

UNIVERSIDAD NACIONAL ABIERTA Y A DISTANCIAESCUELA DE CIENCIAS BASICAS, TECNOLOGIAS E INGENIERIASMAYO DE 2014

Tabla de Datos

TABLA DE DATOSDIAMETRO RAIZ DEL PINHORAX1X2X3X4X51145.3145.0145.6146.0145.92146.0145.3145.3146.0145.33144.3144.0145.3144.4144.74145.0145.0145.5145.7145.15144.7144.7144.8145.0145.06145.1145.0145.3145.6145.47144.7145.0145.3144.7145.38145.3146.0145.3146.0145.39145.3145.7145.0144.7144.710144.6144.0144.7144.2144.111146.1145.8145.9145.7145.012144.8145.0145.2144.9144.713144.3144.4144.7144.7144.514144.4144.6144.3144.5144.015144.7145.3145.3144.7144.516144.7144.8145.3144.8144.617144.4144.5144.4144.7144.818144.4144.5144.4144.4144.619144.7145.1144.7144.4144.420145.3145.3144.7144.4145.321145.3145.3144.4144.4144.722145.3145.3145.1145.3145.523145.1144.4145.3145.3145.524145.6145.3145.6145.7145.5

Grafico X BarraTABLA DE DATOSHORADIAMETRO RAIZ DEL PINTabla de Factores para convertir un rango promedio, R , a lmites de control variablesX PROMEDIOR Nmero de valores en el subgrupoCarta de control de mediasCarta de control de rangosX1X2X3X4X5n A2D3D41145.3145.0145.6146.0145.9145.61.021.8803.2672146.0145.3145.3146.0145.3145.60.731.02302.5753144.3144.0145.3144.4144.7144.50.740.72902.2824145.0145.0145.5145.7145.1145.30.750.57702.1155144.7144.7144.8145.0145.0144.80.360.48302.0046145.1145.0145.3145.6145.4145.30.670.4190.0761.9247144.7145.0145.3144.7145.3145.00.680.3730.1361.8648145.3146.0145.3146.0145.3145.60.790.3370.1841.8169145.3145.7145.0144.7144.7145.10.6100.3080.2231.77710144.6144.0144.7144.2144.1144.30.7Adaptado de Buffa y Sarn. Fuente: Desarrollada a partir de una tabla de factores mucho ms grande de gran utilidad para la construccin de grficas de control, tabla B2 del manual A.S.T.M para control de calidad de materiales, P.115.11146.1145.8145.9145.7145.0145.71.112144.8145.0145.2144.9144.7144.90.513144.3144.4144.7144.7144.5144.50.4Clculo de los lmites de control14144.4144.6144.3144.5144.0144.40.6Lmite superior de control15144.7145.3145.3144.7144.5144.90.8LSC = X + A2RLSC =145 + (0,577*0,7) = 145.416144.7144.8145.3144.8144.6144.80.717144.4144.5144.4144.7144.8144.60.2Lmite inferior de control18144.4144.5144.4144.4144.6144.50.7LIC = X - A2RLIC =145 - 0,577*0,7)144.619144.7145.1144.7144.4144.4144.70.720145.3145.3144.7144.4145.3145.00.921145.3145.3144.4144.4144.7144.80.922145.3145.3145.1145.3145.5145.30.423145.1144.4145.3145.3145.5145.11.124145.6145.3145.6145.7145.5145.50.4 X145.00.7

LIMITE SUPERIOR DE CONTROL = 145,4LIMITE INFERIOR DE CONTROL = 144,6HORAS O NUMERO DE MUESTRADIAMETRO RAIZ DEL PINGRAFICO DE CONTROL XX PROMEDIO = 145,0

Grafico de Cotrol RTABLA DE DATOSHORAX PROMEDIORTabla de Factores para convertir un rango promedio, R , a lmites de control variablesMximoMnimoDEL DIAMETRO RAIZ DEL PINNmero de valores en el subgrupoCarta de control de mediasCarta de control de rangosn A2D3D41145.3145.0145.6146.0145.9145.6146.0145.01.021.8803.2672146.0145.3145.3146.0145.3145.6146.0145.30.731.02302.5753144.3144.0145.3144.4144.7144.5145.3144.01.340.72902.2824145.0145.0145.5145.7145.1145.3145.7145.00.750.57702.1155144.7144.7144.8145.0145.0144.8145.0144.70.360.48302.0046145.1145.0145.3145.6145.4145.3145.6145.00.670.4190.0761.9247144.7145.0145.3144.7145.3145.0145.3144.70.680.3730.1361.8648145.3146.0145.3146.0145.3145.6146.0145.30.790.3370.1841.8169145.3145.7145.0144.7144.7145.1145.7144.71.0100.3080.2231.77710144.6144.0144.7144.2144.1144.3144.7144.00.7Adaptado de Buffa y Sarn. Fuente: Desarrollada a partir de una tabla de factores mucho ms grande de gran utilidad para la construccin de grficas de control, tabla B2 del manual A.S.T.M para control de calidad de materiales, P.115.11146.1145.8145.9145.7145.0145.7146.1145.01.112144.8145.0145.2144.9144.7144.9145.2144.70.513144.3144.4144.7144.7144.5144.5144.7144.30.4Clculo de los lmites de control14144.4144.6144.3144.5144.0144.4144.6144.00.6Lmite superior de control15144.7145.3145.3144.7144.5144.9145.3144.50.8LSCR = D4RLSCR =2,115 X 0,7 = 1.516144.7144.8145.3144.8144.6144.8145.3144.60.717144.4144.5144.4144.7144.8144.6144.8144.40.4Lmite inferior de control18144.4144.5144.4144.4144.6144.5144.6144.40.2LICR = D3RLICR =0 X 0,70.019144.7145.1144.7144.4144.4144.7145.1144.40.720145.3145.3144.7144.4145.3145.0145.3144.40.921145.3145.3144.4144.4144.7144.8145.3144.40.922145.3145.3145.1145.3145.5145.3145.5145.10.423145.1144.4145.3145.3145.5145.1145.5144.41.124145.6145.3145.6145.7145.5145.5145.7145.30.4R X145.0R0.7

LIMITE SUPERIOR DE CONTROL = 1,5LIMITE INFERIOR DE CONTROL = 0,0HORAS O NUMERO DE MUESTRA RANGO R DEL DIAMETRO RAIZ DEL PINGRAFICO DE CONTROL RR = 0,7

Diagrama Pareto

CAUSAS DEL INCUMPLIMIENTO DELDIAMETRO DEL PINITEMCAUSA (Elemento)EFECTOCONTRIBUCIN (%)Acumulado del total%ADesajuste mecnico de las mquinasEsto hace que el montaje y las herramientas de corte flucten durante el proceso de corte 3939BMala interpretacin de los instrumentos de medicinSi no se interpretan bien los valores de la lectura del calibrador, se tabulan datos incorrectos.2665CHerramientas de corte en mal estadoLas fresas madre mal afiladas hacen que la profundidad de corte vare en un mismo avance1883DEspecificaciones incorrectasHay especificaciones que no corresponden con la referencia a procesar y por eso las medidas quedan malas.790EFalta de cuidado por parte del operarioLos operarios no realizan puesta a punto del proceso595FAlgunas mquinas no tienen visualizador de profundidad de corteHay que calcular la profundidad de corte manualmente utilizando tres materiales inicialmente a ensayo y error398GEstndares de produccin muy elevadosLos tiempos por cantidad de unidades procesadas no alcanzan para realizar inspecciones de calidad2100Total100100

Completo

TABLA DE DATOSX PROMEDIOR PROMEDIOTabla de Factores para convertir un rango promedio, R , a lmites de control variablesDIAMETRO RAIZ DEL PINNmero de valores en el subgrupoCarta de control de mediasCarta de control de rangosHORAX1X2X3X4X5n A2D3D41145.3145.0145.6146.0145.9145.61.021.8803.2672146.0145.3145.3146.0145.3145.60.731.02302.5753144.3144.0145.3144.4144.7144.50.740.72902.2824145.0145.0145.5145.7145.1145.30.750.57702.1155144.7144.7144.8145.0145.0144.80.360.48302.0046145.1145.0145.3145.6145.4145.30.670.4190.0761.9247144.7145.0145.3144.7145.3145.00.680.3730.1361.8648145.3146.0145.3146.0145.3145.60.790.3370.1841.8169145.3145.7145.0144.7144.7145.10.6100.3080.2231.77710144.6144.0144.7144.2144.1144.30.7Adaptado de Buffa y Sarn. Fuente: Desarrollada a partir de una tabla de factores mucho ms grande de gran utilidad para la construccin de grficas de control, tabla B2 del manual A.S.T.M para control de calidad de materiales, P.115.11146.1145.8145.9145.7145.0145.71.112144.8145.0145.2144.9144.7144.90.513144.3144.4144.7144.7144.5144.50.4Clculo de los lmites de control14144.4144.6144.3144.5144.0144.40.6Lmite superior de control15144.7145.3145.3144.7144.5144.90.8LSC = X + A2RLSC =145 + (0,577*0,7) = 145.416144.7144.8145.3144.8144.6144.80.717144.4144.5144.4144.7144.8144.60.2Lmite inferior de control18144.4144.5144.4144.4144.6144.50.7LIC = X - A2RLIC =145 - 0,577*0,7)144.619144.7145.1144.7144.4144.4144.70.720145.3145.3144.7144.4145.3145.00.921145.3145.3144.4144.4144.7144.80.922145.3145.3145.1145.3145.5145.30.423145.1144.4145.3145.3145.5145.11.124145.6145.3145.6145.7145.5145.50.4 X145.00.7

Grfico de dispersin

TABLA DE DATOSDIAMETRO RAIZ DEL PINHORAX1X2X3X4X51145.3145.0145.6146.0145.92146.0145.3145.3146.0145.33144.3144.0145.3144.4144.74145.0145.0145.5145.7145.15144.7144.7144.8145.0145.06145.1145.0145.3145.6145.47144.7145.0145.3144.7145.38145.3146.0145.3146.0145.39145.3145.7145.0144.7144.710144.6144.0144.7144.2144.111146.1145.8145.9145.7145.012144.8145.0145.2144.9144.713144.3144.4144.7144.7144.514144.4144.6144.3144.5144.015144.7145.3145.3144.7144.516144.7144.8145.3144.8144.617144.4144.5144.4144.7144.818144.4144.5144.4144.4144.619144.7145.1144.7144.4144.420145.3145.3144.7144.4145.321145.3145.3144.4144.4144.722145.3145.3145.1145.3145.523145.1144.4145.3145.3145.524145.6145.3145.6145.7145.5 X