Minimize number of times same item is moved mh

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Minimize number of times same item is moved MH systems should be flexible Mobile equipment should carry full loads Material-Handling Equipment Automatic transfer devices/Containers/pallets/hand carts Conveyors/Cranes/Elevators/Pipelines/ Turntables/AGVS
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Types of Facility Layout 1. Process Layout: Similar Machines are Grouped together as Specific Work Centers (WC). (Functional/Departmental Layout) (e.g., Job Shop) 2. Product Layout :Machines are Installed According to Operations Sequence through which designed Product is Made. (Line Layout) (e.g., Assembly Line/Continuous Process)
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L L L L L L M M M M M M G G G G G G D D D D D D Work flow inputs Work flow outputs Original Job Shop Layout: G M L D F M D D L D D G L L D G L D L D F Work flow inputs Work flow outputs Group Technology Group Technology Layout: Layout: Key: M= Milling Machine D= Drilling L=Lathe F= Finish G= Grinder
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Types of Facility Layout 3.Project Layout: Equipment are fixed at specified Position. (Fixed Position Layout) (e.g., Project Shop: Aircraft Plant/Ship Building Yard) 4. Cellular Layout: Selected Machines are grouped to form several Manufacturing Cells, each produces a specific group of products. (GT Layout, GT-Group Technology) (e.g., Cellular Shop)
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Fixed Position Layout
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L L L L L L M M M M M M G G G G G G D D D D D D Work flow inputs Work flow outputs Original Job Shop Layout: G M L D F M D D L D D G L L D G L D L D F Work flow inputs Work flow outputs Group Technology Group Technology Layout: Layout: Key: M= Milling Machine D= Drilling L=Lathe F= Finish G= Grinder
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Process Layout Drilling D D D D Grinding G G G G G G Milling M M M M M M Assembly A A A A Lathing Receiving and shipping L L L L L L L L (a) Jumbled flows in a job shop without GT cells (a) Jumbled flows in a job shop without GT cells
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Cellular Layout (b) Line flows in a job shop with three GT cells (b) Line flows in a job shop with three GT cells Cell 3 L M G G Cell 1 Cell 2 Assembly area A A L M D L L M Shipping D Receiving G
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Group Technology/Cellular Manufacturing Group Technology Each part produced receives a multi- digit code that describes the physical characteristics of the part. Parts with similar characteristics are grouped into part families Parts in a part family are typically made on the same machines with similar tooling
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Group Technology/Cellular Manufacturing (II) Cellular Manufacturing Some part families (those requiring significant batch sizes) can be assigned to manufacturing cells. The organization of the shop floor into cells is referred to as cellular manufacturing. Flow of parts within cells tend to be more like product-focused systems
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Group Technology/Cellular Manufacturing (III) Advantages (relative to a job shop) Process changeovers simplified Variability of tasks reduced (less training needed) More direct routes through the system Quality control is improved Production planning and control simpler Automation simpler
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What is Layout Planning?
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