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Quezon City Polytechnic University
                                 Batasan Campus
                           IBP. Rd. Batasan Hills, Quezon City




           Manufacturing
            Technology 6

Precision Forging

Submitted by:

Eron Mark L.Fausto
BSIE – 3B



                                                                 Submitted To:

                                                                 Prof. Norberto De Jesus
What is Forging?

        -   Metal shaping by plastic deformation--spans a myriad of equipment and techniques..



What is Precision Forging?

        -   Precision forging is an alternative process to replace the traditional forging complex parts.
             For example, if the connecting rods do not use precision forging, they need the complicated
            machining processes to achieve the final shapes
        -   Precision forging normally means close-to-final form or close-tolerance forging. It is not a
            special technology, but a refinement of existing techniques to a point where the forged part
            can be used with little or no subsequent machining. Improvements cover not only the
            forging method itself but also preheating, de-scaling, lubrication, and temperature control
            practices

Features of precision forging

        1. Precision forging and closed die forging have the basic same working principle. The
           difference is that precision forging has higher requirements on the surface, dimensional
           tolerances and shape. The precision forgings usually need less machining or without
           machining

        2. As a process of a one-time forming, precision forging need precision Size, weight and
           shape on forging blanks.



Precision Forging process (Golf Head)

Step 1 Raw Materials Preparation

        -   Premium grade 1025 Carbon steel is selected for the highest quality in softness and
            strength.
            The cylindrical billet is tumbled with a find sand to provide a smooth and clean
            surface.

Step2Billet Heat Treatment

        -   Billet is heated to over 1000 degrees to optimize the material microstructure of 1025
            in preparation for forging.
Step 3 Billet Forging

       -   The Billet is forged to shape using a 1000 ton press.

Step 4 Primary forging

       -   The Primary Forging step provides the initial shape of the head.




Materials used for precision forging

Precision forging is belongs to the hot forging. The materials of precision forging are same with
other hot forging processes. Precision forging could forge a variety of types of materials. The
most common materials are carbon steel, alloy steel, stainless steel and copper alloy.

Applications of precision forgings

 Precision forgings are mainly used in the key components of aircraft, power generation
equipment, and tubing components and automotive which have the high requirements on
surface quality. Some parts do not use precision forging, usually use die forging and machining
process.
What is forging

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What is forging

  • 1. Quezon City Polytechnic University Batasan Campus IBP. Rd. Batasan Hills, Quezon City Manufacturing Technology 6 Precision Forging Submitted by: Eron Mark L.Fausto BSIE – 3B Submitted To: Prof. Norberto De Jesus
  • 2. What is Forging? - Metal shaping by plastic deformation--spans a myriad of equipment and techniques.. What is Precision Forging? - Precision forging is an alternative process to replace the traditional forging complex parts. For example, if the connecting rods do not use precision forging, they need the complicated machining processes to achieve the final shapes - Precision forging normally means close-to-final form or close-tolerance forging. It is not a special technology, but a refinement of existing techniques to a point where the forged part can be used with little or no subsequent machining. Improvements cover not only the forging method itself but also preheating, de-scaling, lubrication, and temperature control practices Features of precision forging 1. Precision forging and closed die forging have the basic same working principle. The difference is that precision forging has higher requirements on the surface, dimensional tolerances and shape. The precision forgings usually need less machining or without machining 2. As a process of a one-time forming, precision forging need precision Size, weight and shape on forging blanks. Precision Forging process (Golf Head) Step 1 Raw Materials Preparation - Premium grade 1025 Carbon steel is selected for the highest quality in softness and strength. The cylindrical billet is tumbled with a find sand to provide a smooth and clean surface. Step2Billet Heat Treatment - Billet is heated to over 1000 degrees to optimize the material microstructure of 1025 in preparation for forging.
  • 3. Step 3 Billet Forging - The Billet is forged to shape using a 1000 ton press. Step 4 Primary forging - The Primary Forging step provides the initial shape of the head. Materials used for precision forging Precision forging is belongs to the hot forging. The materials of precision forging are same with other hot forging processes. Precision forging could forge a variety of types of materials. The most common materials are carbon steel, alloy steel, stainless steel and copper alloy. Applications of precision forgings Precision forgings are mainly used in the key components of aircraft, power generation equipment, and tubing components and automotive which have the high requirements on surface quality. Some parts do not use precision forging, usually use die forging and machining process.