Design of Manufacturing SystemPC FactoryDesign ProcessDesign IssuesSerial vs. Parallel StationsSerial vs. Parallel StationsKitting vs. Line-side stockingCapacity: where to locate the constraint?Copyright 2005. Stephen C. GravesAll Rights ReservedDesign of Manufacturing System• No general theory or frameworks:– factory designs are infrequent– factory designs seem to be context specific• Case study for PC factory– design process– design issues• Illustrative example: use of queuing concepts for design of medical tentCopyright 2005. Stephen C. GravesAll Rights ReservedPC FactoryMaterialAssembly Hi-Pot testTest & Software LoadLocalizePack InspectConsolidateAuditCopyright 2005. Stephen C. GravesAll Rights ReservedDesign Process• Benchmarking and best practices• Development of design concept• Development of design guidelines• Detailed design process• Development of personnel and material requirements• Installation and verification of processes and proceduresCopyright 2005. Stephen C. GravesAll Rights ReservedDesign Issues• Configuration for each stage: serial versus parallel stations• Material positioning: kitting versus line-side stocking• Capacity for each stage: where to locate the constraintCopyright 2005. Stephen C. GravesAll Rights ReservedSerial vs. Parallel StationsCopyright 2005. Stephen C. GravesAll Rights ReservedSerial vs. Parallel Stations• Divisibility of process• Unpredictable process variation• Tooling and equipment• Material positioning• Task complexity• Demand and mix variability• Quality considerationsCopyright 2005. Stephen C. GravesAll Rights ReservedKitting vs. Line-side stocking• Cost of picking vs. stocking• Security and control• Inventory requirements and inventory costs• Scheduling complexityCopyright 2005. Stephen C. GravesAll Rights ReservedCapacity: where to locate the constraint?• Cost of capacity• Predictability of process• Scheduling complexity• Yield