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GRAFICA DE CONTROL DE VARIABLES ( X - R )

X. GRAF No. GRAFICA DE CONTROL DE VARIABLES ( X - R ). SI ( ). DEPTO. OPERACION. ESPECIFICACION. MODELO. PLANTA. ITEM DE. NO ( ). CONTROL. FECHAS. CARACTERISTICA. FREC. DE MUESTRA. No. DE PARTE. LINEA. P. ROMEDIO. (. CARTA X. ). LSC. . . A. R. . LIC. .

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GRAFICA DE CONTROL DE VARIABLES ( X - R )

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  1. X GRAF No. GRAFICA DE CONTROL DE VARIABLES ( X - R ) SI ( ) DEPTO. OPERACION ESPECIFICACION MODELO PLANTA ITEM DE NO ( ) CONTROL FECHAS CARACTERISTICA FREC. DE MUESTRA No. DE PARTE LINEA P ROMEDIO ( CARTA X ) LSC   A R  LIC  X  A X R X Media 2 2 MEDIDAS A TOMAR Causas Especiales CUALQUIER PUNTO FUERA DE CONTROL UNA SERIE DE 7 PUNTOS ARRIBA O ABAJO DE LA LINEA CENTRAL UNA TENDENCIA DE 7 INTERVALOS ACENDENTES O DECENDENTES CUALQUIER OTRO PATRON QUE DEMUESTRE INESTABILIDAD ACCIONES 1 2 RECORRIDOS ( R ) R  Media R = LSC  D * R = LIC  D * R = 4 3 3 4 5 TAMAÑO DE SUBGRUPOS A D D 2 3 4 FECHA 1.88 * 3.27 2 1.02 * 2.57 3 HORA 0.73 * 2.28 4 0.58 * 2.11 5 TURNO 0.48 * 2.00 6 0.42 0.08 1.92 1 7 L 0.37 0.14 1.86 8 2 E R 0.34 0.18 1.82 9 0.31 0.22 1.78 10 C A 3 T S A2 = 0.577 4 U 5 Para poder determinar la capacidad el proceso debe estar bajo control SUMA PROMEDIO RANGO ITCA 09-01-04-05 REV (1)

  2. GRAFICA No. MUESTRA DE 5 PZAS X = X LSC = D R LSC = X + A R 4 A 2 .577 R 2 X No. de datos d 2.326 2 LIC = D R R = R LIC = X - A R 3 D 2 0 R X 3 No. de datos D 2.114 4 DEPTOS DATO No. FECHA DESCRIPCION DEL PROBLEMA CAUSAS ACCION CORRECTIVA INVOLUCRADO

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