Backward Analysis Route Sheet MPPC 1 Route Sheet

Backward Analysis, Route Sheet, MPPC 1

Route Sheet Company: ARC Inc. Part: Plunger Housing Prepared by: JSU Produce: Air Flow Regulator Part No. 3254 Part No. 6/6/03 Oper. No. Operation Description 0104 Shape, drill, cut off 0204 Machine Type Setup (hr. ) Oper. Time (hr. ) . 5 in dia coller, cir. Form tool, . 45” diam center drill 5 0. 0057 Machine Slot Chucker and thread 0. 045” slot saw, turret slot 2. 25 0. 0067 0304 Drill 8 holes Auto dr. unit 0. 078” diam twist drill 1. 25 0. 0038 0404 Debur and Blow out Drill press Deburring tool with 0. 5 pilot 0. 0031 SA 1 Enclose Dennison subassembly hydraulic press None 0. 0100 2 Auto sc. Machine Tooling 0. 25 Mtls. Parts Alum 1”x 12’

Routing sheet 3

Assembly Chart 2200 3254 Analog model of the assembly process. 3253 • Circles denote components 3252 • Links denote SA-1 3251 A-1 operations/subassemblies 3250 • Squares represent inspections operation • Begin with the original product A-2 4150 and to trace the product 4250 disassembly back to its basic 1050 components. 4 3255 A-3 I-1 Pack A-4

Production Requirements – Yield Loss Pi i P i si 5 Oi Pi – Production input to operation i si – Fraction of Pi lost (scrap) Oi – output of process i

Production Requirements – Series Systems P 1 6 1 2 P 1 s 1 P 2 s 2 . . . n Pnsn On

Example 5 processes in series Need 2000 units out 7

Production Requirements – Non Series Part A Work backward from end of the line. s 1=1% s 2=2% 1 2 Part B M 1 s 3=2% 3 M 2 s 4=1% 4 M 3 s 5=4% 5 M 4 M 2 100, 000 units 8

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Distance Measures � Euclidean � Squared Euclidean � Rectilinear � Tchebychev � Aisle distance � Adjacency � Shortest Path 10

Euclidean, Squared Euclidean, Rectilinear and Tchebychev 11

Aisle Distance, Adjacency and Shortest Path 12

Layout evaluation criteria � cij cost of moving a unit load of material unit distance between departments i and j � fij number of loads or trips required between departments i and j � dij distance between departments i and j 13