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 Open Die Forging | KT Forge

Steel Forging | Hot Forming | Cold Forming

We do
  1. Open Die, Hammer or Smith Forging
  2. Drop forging.(closed die)
  3. Press forging
  4. Upset forging
  5. Roll forging
  6. Swaging
Work With
  • All Steel Types including Carbon, Alloy and Stainless
  • Aluminum Silicon Bronze
  • Bronze
Worked for
  • Components for the Oil Related Industry
  • Automotive Industry
  • Transportation Industry
  • Ship Building Industry
  • Heavy Plant Engineering Industry
  • Vehicle Springs
  • Steel Works Equipment

Click image to enlarge
Worked On
  • Anti-Roll Bars
  • Automotive Leaf Springs
  • Box Tongs upto 12 inches
  • Bracket Work
  • Davit Arms
  • Engineering Parts and Repairs
  • Engineering Requirements - Bolts (Off Standard)
  • Forge Test Pieces
  • Heat Exchanger Fabrication
  • Jominy Test Pieces
  • Main Leafs for Locomotives
  • Open Die Forging
  • Prototypes and Small Production Runs
  • Shackles up to 40Kg
  • Special Hooks
  • Sporting Gun Parts (barrels - chop a lump)
  • Torsion Bars
  • more ...

Open Die Forging

Our long list of clients include:
  • British Waterways
  • Bridon International
  • C F Booth Engineering Ltd
  • Europa Engineering
  • Firth Rixson Super Alloys
  • MAN Diesel Ltd
  • MBH Analytical Ltd
  • MSI Quality Forgings
  • National Railway Museum
  • National Railways
  • OutoKumpu Stainless Ltd
  • Rotherham Metropolitan Borough Council
  • Sheffield Hallam University
  • Tata Steels
  • Tinsley Bridge Ltd
  • Wavin Pipeline Services
  • William Cook
  • many more ...
Open-die forging is also known as smith forging. In open-die forging, a hammer strikes and deforms the workpiece, which is placed on a stationary anvil. Open-die forging gets its name from the fact that the dies (the surfaces that are in contact with the workpiece) do not enclose the workpiece, allowing it to flow except where contacted by the dies. Therefore the operator needs to orient and position the workpiece to get the desired shape. The dies are usually flat in shape, but some have a specially shaped surface for specialized operations. For example, a die may have a round, concave, or convex surface or be a tool to form holes or be a cut-off tool.

Open-die forging lends itself to short runs and is appropriate for art smithing and custom work. In some cases, open-die forging may be employed to rough-shape ingots to prepare them for subsequent operations. Open-die forging may also orient the grain to increase strength in the required direction.

Cogging is successive deformation of a bar along its length using an open-die drop forge. It is commonly used to work a piece of raw material to the proper thickness. Once the proper thickness is achieved the proper width is achieved via edging. Edging is the process of concentrating material using a concave shaped open die. The process is called edging, because it is usually carried out on the ends of the workpiece. Fullering is a similar process that thins out sections of the forging using a convex shaped die. These processes prepare the workpieces for further forging processes.