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Manufacturing+process+selection+and+design.ppt

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Manufacturing+process+selection+and+design.ppt

  1. 1. Manufacturing and Process Selection Design
  2. 2. Types of Processes • Conversion – iron ore into steel • Fabrication – forming raw material (gold into jewelry) • Assembly – fastening parts together to create product (bicycle) • Testing – for quality of products
  3. 3. Process Selection
  4. 4. Process Flow Structures • Job Shop – One of a kind – Made to order • Batch – Low volume, many products – Bakery • Assembly Line – High volume, few products – Maruti assembly line • Continuous Flow – High volume, high standardization – Refinery
  5. 5. Process Flow Design • A process flow design can be defined as a mapping of the specific processes that raw materials, parts, and subassemblies follow as they move through a plant. • Drawings, charts
  6. 6. Assembly Chart 4 5 6 7 Lock-ring Spacer, detent spring SA-2 Rivets (2) A-2 Spring-detent A-5 Component/Assembly Operation Inspection
  7. 7. Process Flow Chart Material Received from Supplier Inspect Material for Defects No, Continue… Defects found? Return to Supplier for Credit
  8. 8. • Designing the product = art • Building the product = science • Moving from design to customer = management
  9. 9. Product – Process Matrix Product Structure - Product lifecycle ---------------------------------------------> Process Structure Low Volume Multiple Few major High Volume - Process low products - Low products - High High Effectiveness Lifecyclr Stage standardization volume Volume Standardization measures Job Shop Batch Assembly Line Continuous High flexibility / Unit Cost French restaurant Coffee Shop Burger King Sugar refinary Low flexibility / unit cost
  10. 10. Breakeven Analysis
  11. 11. Operations Technology • Hardware • Software • Computer Integrated manufacturing
  12. 12. Hardware • • • • • Numerically controlled (NC) machines Machining centers Industrial robots Automated material handling systems Flexible manufacturing systems (FMS) – BMW example – Machine, material handling, Operations, Volume, expansion, routing, process, product, market
  13. 13. Software • Computer-aided-design (CAD) • Automated manufacturing planning and control systems (MP & CS) • Enterprise Resource Systems (ERP)
  14. 14. Technologies in Service • Office automation • Image processing systems • Electronic data interchange (EDI) • Decision support systems & expert systems • Networked computer systems

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