Download - ch6-Mfg Pro.Sel. & Design (1).ppt
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4-*Product-Flow CharacteristicsTypes of Product Flow
Line FlowBatch FlowProject FlowCharacteristics of Flows
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Line Flow
paintdrillbend
Task or work stationProduct flowcut
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Batch Flow CutPaint
Task or work stationProduct flowsBendDrillBatchABatchBBatchC
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Classification by Type of Customer OrderMake to Stock (MTS)Make to Order (MTO)Assemble to Order (ATO)
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Process Selection DecisionsProcess characteristics matrix
Factors affecting process choice
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Factors Affecting Process ChoiceMarket conditions and competitionCapital requirementsLabor supply and costState of technology
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Process Manufacturing System- A Layout in a Cement PlantCrusherLimestoneHopper 1Feeder 1Hopper 2Feeder 2Hopper 3Feeder 3Hopper 4FeederDispatch SiloCement MillIron OneClayGympsumRaw MillBlending SiloFiring KilnHopper 5Feeder
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Types of ProcessesConversion (ex. Iron to steel)Fabrication (ex. Cloth to clothes) Assembly (ex. Parts to components)Testing (ex. For quality of products)
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Process Flow StructuresJob shop (Ex. Tailoring Shop )Batch shop (Ex. Garment Manufacturer / Pharmaceutical Products)Assembly Line (ex. Automobile manufacturer)Continuous Flow (ex. Petroleum Products manufacturer)
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Manufacturing 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 plantThe most common tools to conduct a process flow design include assembly drawings, assembly charts, and operation and route sheets
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Example: Assembly Chart (Gozinto)From Exhibit 5.14
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