Ppc in mass and flow production system, Operation Management

PPC in Mass and Flow Production System

Continuous  production  is the  specialized  manufacturing  of identical  articles on which  the equipment  is  fully  engaged. Continuous  is normally associated  with  large quantities  and high  rate of demand. Since  identical articles  are produced  the operations  are repetitive  production  auxiliary aids  such as   special  tools  jigs  and  fixtures material  handling system,  inspection  devices  can be used  advantageously.

Continuous production can be classified into two types:

  1. Mass Production
  2. Flow Production

In mass  production  a large  number  of identical  articles  are production  but inspite of  advanced mechanization and  tooling  the equipment   need  not be  specially designed for this type   of article only.  Both  plant and equipment are flexible enough  to produce other  products involving same production processes.

If  the management  decides that  a certain  line should  be discontinued the  machinery can be switched  over to produce another article. Such  change in policy usually does not involve major modifications  in plant layout  but change  in tooling  may be  quite  possible.

A  shop  of automatics  is an example associated  with mass  production. Although the automatics  may be continuously engaged on the  production of say a certain type  of opinions they can be switched  over to production of  screw or similar machine  elements when  the need  arises.  Another  example  is a highly  mechanized  press shop  that can be  utilized  for  the production of different  components  or production  made  of sheet metal without  having to introduce major  changes in  the shop  layout.

In flow  production  the plant  it s equipment and layout  are primarily designed  to manufacturing the  product in question. Flexibility in  selection of products  for  manufacturing  is confined to minor  modifications  in layout  or design  of models. Notable  example  are automobiles  engines  house hold machinery  chemical  plants etc.  A decision  to switch  to a different  over to  a different kind of  product  may not only  result in extensive tooling ( this  is often needed  even when only the model is changed) but also  in basic  changes in layout  and equipment  policy especially  when special  purpose  machines  and  complex materials  handling  systems are involved.

Production  planning  and control  in continuous  production  is usually  far  simpler  than in  job or batch  production. Extensive effort is required for detailed  planning  before production  starts,  but both  scheduling  and control  need not  usually  by very elaborate.

 

Posted Date: 1/22/2013 8:00:05 AM | Location : United States







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