Metal Forming: Forgings – Closed Die Terminology and Equipment

Forgings: Closed Die Terminology and Equipment introduces learners to the basic equipment, concepts, and general terminology that are often applied for closed die forging industries.


Learning Objectives

  • Recall some of the properties of forged material.
  • Understand some common terms such as billet, blank, press, and die.
  • Recognize the basic equipment and tools used in forging processes.
  • Identify the different types of impression dies that are commonly used.
  • Recall some of the basic forging design considerations.
Course Length: 2.5 HRS

Table of Contents

Forging Basics and Terminology

  • Basic Terminology
  • Properties of Forged Material
    • Mechanical Properties
    • Grain Structure
    • Increased Density
  • Forgeability
    • Strain Rate
  • Other Common Forging Processes
    • Open Die Forging
    • Ring Rolling
    • Powder Forging
    • Rotary Forging
    • Radial Forging
    • Upset Forging
  • Forging Temperature Range
    • Hot Forging
    • Warm Forging
    • Cold Forging
  • Stages of Impression Die Forging
  • Net, Near Net, and Conventional Forgings

Forging Equipment and Tooling

  • Forging Presses
    • Types of Force: Energy-Restricted Machines
    • Types of Force: Stroke-Restricted Machines
    • Types of Force: Force-Restricted Machines
    • Mechanisms: Mechanical Presses
    • Mechanisms: Hydraulic Presses
    • Mechanisms: Screw Presses
  • Forging Hammers
    • Gravity Drop Hammers
    • Secondary Gravity Drop Hammers
    • Power Drop Hammers
    • Counterblow Hammers
  • Impression Dies
    • Forging Drawing Example
    • Forging Design Considerations
    • Impression Die Cavities
    • Impression Die Material
    • Impression Die Manufacturing

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