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    Cellular Manufacturing and Group Technology

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    Nishit Parmar
    The document discusses cellular manufacturing and group technology. Cellular manufacturing involves organizing a manufacturing system into cells based on similarities in machine types and part production processes. Group technology involves classifying parts into families based on design attributes and manufacturing processes. The benefits include reduced flow times, inventories, and setup times through standardization and organizing production into cells of similar machines and parts.

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    Cellular Manufacturing and Group Technology

    Uploaded by

    Nishit Parmar
    117 views13 pages
    The document discusses cellular manufacturing and group technology. Cellular manufacturing involves organizing a manufacturing system into cells based on similarities in machine types and part production processes. Group technology involves classifying parts into families based on design attributes and manufacturing processes. The benefits include reduced flow times, inventories, and setup times through standardization and organizing production into cells of similar machines and parts.

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    The document discusses cellular manufacturing and group technology. Cellular manufacturing involves organizing a manufacturing system into cells based on similarities in machine types and part production processes. Group technology involves classifying parts into families based on design attributes and manufacturing processes. The benefits include reduced flow times, inventories, and setup times through standardization and organizing production into cells of similar machines and parts.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    117 views13 pages

    Cellular Manufacturing and Group Technology

    Uploaded by

    Nishit Parmar
    The document discusses cellular manufacturing and group technology. Cellular manufacturing involves organizing a manufacturing system into cells based on similarities in machine types and part production processes. Group technology involves classifying parts into families based on design attributes and manufacturing processes. The benefits include reduced flow times, inventories, and setup times through standardization and organizing production into cells of similar machines and parts.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 13

    CELLULAR MANUFACTURING

    AND
    GROUP TECHNOLOGY

    Presented By (1820028)
    (1820039)
    CELLULAR MANUFACTURING
    • It is an application of
    group technology in
    manufacturing in which
    all or a portion of a
    firm’s manufacturing
    system has been
    converted into cells.
    Production flow analysis involves four stages :
    Stage 1 : Machine classification
    • Machines are classified on the basis of operations that can be
    performed on them. A machine type number is assigned to machines
    capable of performing similar operations.

    Stage 2 : Checking parts list and production routine information.


    • For each part, information in the operations to be undertaken and the
    machines required to perform each of these operations is checked
    thoroughly.
    Stage 3 : Factory flow analysis
    • This involves a micro level examination of flow of components
    through machines. This, in turn, allows the problem to be
    decomposed in a number of machine-component groups.

    Stage 4 : Machine-component group analysis


    • An intuitive manual method is suggested to manipulate the matrix to
    form cells. However, as the problem size becomes large, the manual
    approach does not work. Therefor, there is a need to develop
    analytical approaches to handle large problems systematically.
    BENEFITS OF CELLULAR MANUFACTURING
    1. Flow times are reduced.
    2. Saves process time
    3. Reduction in inventories
    4. Rush orders can be produced without much problems
    5. Employees feel empowered and derive job
    satisfaction
    6. Multiple operations get done in a single cell
    LIMITATIONS OF CELLULAR MANUFACTURING
    1. Issues like placement of bottleneck machines are need to
    be addressed during cell formation.
    2. Machines may require their own individual stock of
    materials.
    3. Inadequacies in employee education, training and
    involvement could come in the way of proper
    implementation.
    GROUP TECHNOLOGY
    Group Technology (GT) is a philosophy that works in three different
    ways:
    1. By performing similar activities together
    2. By standardizing similar tasks
    3. By efficiently storing and retrieving information about recurring
    problems
    GROUP TECHNOLOGY
    • Group technology emphasizes on part families based on
    similarities in design attributes and manufacturing, therefore
    GT contributes to the integration of CAD (Computer Aided
    Design) and CAM (Computer Aided Manufacturing)
    • The group of similar parts is known as part family and the
    group of machineries used to process an individual part
    family is known as machine cell.
    • Group Technology is management strategy to help eliminate
    waste caused by duplication of effort.
    BENEFITS OF GROUP TECHNOLOGY
    Some of the well known tangible and intangible benefits of
    implementing GT are as follows:
    1. Engineering design
    • Reduction in new parts design
    • Reduction in the number of drawings through standardization
    • Reduction of drafting effort in new shop drawings
    • Reduction of number of similar parts, easy retrieval of similar
    functional parts, and identification of substitute parts
    2. Layout planning
    • Reduction in production floor space required
    • Reduced material – handling effort

    3. Specification of equipment, tools, jigs, and fixtures


    • Standardization of equipment
    • Implementation of cellular manufacturing system
    • Significant reduction in up-front costs incurred in the release of new
    parts for manufacturing
    4. Manufacturing: process planning
    • Reduction in setup time and production time
    • Alternative routing leading to improved part routine
    • Reduction in number of machining operations and numerical control
    (NC) programming time.

    5. Customer service
    • Accurate and faster cost estimates
    • Efficient spare parts management, leading to better customer service

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