05Lecture-chp18

05Lecture-chp18 - ENGR3300U Integrated Manufacturing...

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ENGR3300U – Integrated Manufacturing Systems Lecture 05 Chapter 18 – Production Flow Analysis (PFA) Production flow analysis (PFA) – 18.3 Rank order clustering technique – section 18.6.1. 1. Production flow analysis (1) Developed by J. Burbidge, PFA identifies part families using production route sheets. Weakness of PFA is that routing info you get to do the analysis maybe bad. Procedure: (1) Data collection – part #, operation/machine sequence, lot size, time standards, annual demand (2) Sortation of processs routings – arrange parts into groups according to the similarity of their process routings. (3) Part machine incidence matrix (PFA chart) – Construct a matrix for each group, eg. Parts Mach A B C D E F G H I 1 1 1 1 2 1 1 3 1 1 1 4 1 1 5 1 1 6 1 1 7 1 1 1 (4) Cluster analysis – From the patterns of matrix, further group parts into machine cells. Eg. Parts Mach A H D B F G I C E 1 1 1 1 5 1 1 7 1 1 1 4 1 1 3 1 1 1 6 1 1 2 1 1 1
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(1) How many cells? (2)
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05Lecture-chp18 - ENGR3300U Integrated Manufacturing...

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