Page 72 - Module DMV20173
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4.0   BULK DEFORMATION PROCESSES


                   4.3  FORGING OF METALS


























                                                   Figure 4.7 Forging process.

                       1.  Forging is the oldest of the metalworking processes.

                       2.  The forging process consists of hammering or pressing metal in to a desired shape
                          as shown in Figure 5.7. This can be done with or without dies.

                       3.  Parts  can  be  forged  "hot"  (the  metal  is  heated  to  just  below  the  melting  point)  or
                          "cold" (the metal is at 1/3 the melting point temperature).
                       4.  In today's forging industry most parts are hot forged.

                       5.  Forging  is  the  operation  where  the  metal  is  heated  and  then  a  force  is  applied to
                          manipulate the metal in such a way that the required final shape is obtained.

                       6.  This is the oldest of the metal working processes known to mankind since the copper
                          age.  Forging  is  generally  a  hot  working  operation  though  cold  forging  is  used
                          sometimes.

                       7.  Figure 5.8 shows some of the forging products.














                                          Figure 4.8     Some of the forging products.


                   BPLK                                         104                          DMV 20173
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