Deep drawing is the only process that can produce a 0.2mm thick aluminium can with perfectly flat, burr-free edges. Midlands-based press shops are currently running 24/7 to supply these to gigafactories—proving that British cold-forming is world-class. Deep drawing isn't easy. If you push too fast, the metal tears. If the radius is too tight, the metal wrinkles.
A part is considered "deep drawn" when its depth is equal to or greater than its diameter. deep drawn pressing uk
For hydraulic components, gas canisters, or EV battery enclosures, a seam is a liability. Deep drawn parts have no welded bottom seam. They are monolithic—literally impossible to leak through the sides or base. Case Study: The Electric Vehicle Revolution The UK’s push toward Net Zero is a massive opportunity for deep drawing. EV batteries require thousands of precise, cylindrical or prismatic cans. These cans need to be thin (to save weight) and strong (to contain thermal runaway). Deep drawing is the only process that can produce a 0
Experienced UK toolmakers use and multi-stage presses to solve this. A single "draw" might actually require four or five progressive hits, annealing (heat treating) in between, to gently walk the metal into its final shape without breaking it. The Verdict: Draw, Don't Cut If your current supplier is welding two stamped halves together, or if you are paying a fortune to CNC machine a round housing, you are burning cash. If you push too fast, the metal tears
