IMTMA Training Centre

Cold Forging / Cold Extrusion Technology

Focus Areas

  • Concept, principles and benefits of CE

    • Typical components suited best for CE
    • Achievable tolerances.
    • Limitations.
  • Raw material selection for CE
    • Importance of alloying material.
    • Requirements for successful extrusion.
  • Concept of Spherodise annealing.
    • Typical process cycle.
    • Equipment used.
    • Important controls on furnace.
    • Checking parameters.
  • Process sequence of CE
  • Slugging, Types, influence on process
  • Control parameters, Equipment used.
  • Machines available in market.
  • Phosphate & molycoating.
    • Role of Phosphating.
    • Type of phosphating.
    • Operation sequence.
    • Checking parameters.
    • Equipment for Molycoating.
  • Process Cold extrusion.
    • Types of CE
    • Passes used & energy levels in press.
  • Hydraulic press application.
  • Information on tool setting
  • Dangers in press operation & safety
  • Case studies on CE parts


In today’s manufacturing scenario, where shortage of raw materials, power & increasing pressure to reduce costs are the order of the day, ‘Cold Forging’ is possibly the most suitable solution for these pressing issues. Cold forging technology utilizes innovative design coupled with process sequencing to not only reduce costs by utilizing lesser raw material but also imparts greater strength to the component, in addition to increased productivity.  The primary advantage is the material savings achieved through precision shapes that require little finishing. Completely contained impressions and extrusion-type metal flow yield draftless, close-tolerance components. Production rates are very high with exceptional die life. However, Tool design and manufacture are very critical for reliable production of parts.

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