| Class Vocabulary | |
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batches
| A specific number of the same part that moves throughout a production cycle. |
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cell
| A U-shaped arrangement of various machines structured around the design of similar products. Cells encourage smooth product flows and use space efficiently. |
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CNC machine
| A machine tool that uses programs to automatically execute a series of machining operations. CNC machines offer increased productivity and flexibility. |
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continuous improvement
| The belief that an organization must constantly measure the effectiveness of its processes and strive to meet more difficult objectives to satisfy customers. |
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error detection
| The inspection of a part before it has been completed to determine if it conforms to specifications. |
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error device
| Any tool or process used to reduce or eliminate errors from a manufacturing process. |
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Five S Approach
| A targeted list of activities that promotes organization and efficiency within a workspace. The Five S terms are sifting, sorting, sweeping, standardizing, and sustaining. |
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fixture
| A special workholding device used to locate and clamp a part onto a machine tool. |
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inspection
| The examination of a part to determine if it conforms to specifications. Inspection traditionally follows the completion of a part. |
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inventory
| The storage of raw material, in-process parts, and completed, manufactured products. Excess inventory is considered waste. |
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kanban
| A small card or visual tool that signals the movement of parts within a pull system. |
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lead time
| The time spent between the original customer order for a particular product and its final delivery to the customer. |
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lean manufacturing
| An approach to manufacturing that seeks to reduce the cycle time of processes, increase flexibility, and improve quality. Lean approaches help to eliminate waste in all its forms. |
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optical comparator
| A sophisticated measuring instrument that projects an image of a part onto a screen to compare the shape, size, and location of its features. |
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processes
| A set of activities that uses resources to transform inputs into outputs. Essentially, a process describes the way "things get done." |
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product changeover
| The time it takes to tear down the setup for the current product type, prepare for next product type, and successfully produce the first good part.
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product flow
| The movement of products within the shop during each stage of the part's manufacturing process. |
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pull system
| A production system characterized by smaller batches, quick responses to customer demand, and smooth product flow. |
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waste
| Any thing or process that does not add value to a product. The goal of lean manufacturing is to eliminate waste. |