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Chapter 6 Manufacturing Process Selection & Design

Chapter 6 Manufacturing Process Selection & Design. Types of Processes Process Flow Structures Process Flow Design. Types of Processes. Conversion - Fabrication - Assembly - Testing - . Process Flow Structures. Job shop - Batch shop - Assembly Line - Continuous Flow - . Few

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Chapter 6 Manufacturing Process Selection & Design

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  1. Chapter 6Manufacturing Process Selection & Design • Types of Processes • Process Flow Structures • Process Flow Design

  2. Types of Processes • Conversion - • Fabrication - • Assembly - • Testing -

  3. Process Flow Structures • Job shop - • Batch shop - • Assembly Line - • Continuous Flow -

  4. Few Major Products, Higher Volume High Volume, High Standard- ization Low Volume, One of a Kind Multiple Products, Low Volume Flexibility (High) Unit Cost (High) I. Job Shop Commercial Printer French Restaurant II. Batch Heavy Equipment Coffee Shop III. Assembly Line Automobile Assembly Burger King IV. Continuous Flow Sugar Refinery Flexibility (Low) Unit Cost (Low) Exhibit 5.10

  5. Process Flow DesignDefined • 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. • The most common tools to conduct a process flow design include assembly drawings, assembly charts, and operation and route sheets.

  6. Lock-ring 4 Spacer, detent spring 5 SA-2 A-2 Rivets (2) 6 Spring-detent 7 A-5 Component/Assy Operation Inspection From Exhibit 5.14 Example: Assembly Chart (Gozinto)

  7. Example: Process Flow Chart Material Received from Supplier No, Continue… Inspect Material for Defects Defects found? Yes Return to Supplier for Credit

  8. Route Sheet • Lists all operations

  9. Capacity • Capacity - number of units produced per time period • If 6 workers are employed for a process with 11 machines and each machine produces 25 parts per hour, what is the weekly capacity (5 days) for a one shift per day operation (8-hours) if each machine requires a worker full time? • Answer:

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