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The Forming Process
Unique to its competitiors, PDE has the in-house capability to form dished ends by either Pressing or Spinning.Each method can offer particular advantages to the customer's product, to discuss these further please contact our sales team.
Forming of dished ends is achieved in one of three ways:
1. Completely spun - Ends formed using this technique are spun over a tool, which has both the spherical and the knuckle radii. This allows the end to be formed entirely on one spinning machine.
2. Press and Flanging - A contract specific spherical radius is formed using specialist hydraulic Boldrini presses. Following this the required knuckle radius is spun using Boldrini flanging units.
3.Spin and flanging - Unlike pressing, the spherical radius is formed by spinning the plate blank against a fixed forming tool. Forming of the knuckle radius is made in the same way as pressed ends.