What is a deep-draw hydraulic press?
In deep drawing a punch pushes a sheet blank into a die and the metal flows to form a cup. A blank holder controls the flow so the sheet does not wrinkle or tear. A deep-draw hydraulic press provides a long, smooth stroke and a die cushion that holds the blank with a set force, which is why it is used for utensils, cylinders, tank ends and automotive housings.
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List your companyDeep-Draw Hydraulic Press or mechanical power press?
A mechanical press is faster but has a fixed stroke and short working range, so it suits shallow forming. A deep-draw hydraulic press gives full force over a long stroke with controlled speed, which deep parts need.
What to specify when you ask for a quote
- Main force and blank-holder or cushion force, as separate figures.
- Stroke and daylight for the depth of the part and the tooling.
- Drawing speed and whether it can be controlled through the stroke.
- Bed size, and the frame type for the loads and the way parts are fed.
- Material and thickness range you will draw, since this sets the forces required.
- Controls, safety devices and the lubrication and die-handling arrangements.
Where it is used
- Consumer ProductsCookware, utensils and storage products.
- AutomotiveHousings, tanks and deep-formed components.
- Industrial MachineryCylindrical vessels, covers and shells.
Frequently asked questions
What is deep drawing?
It is a forming process where a punch draws a flat metal blank into a die to make a hollow part, such as a cup or a pot. The metal stretches and flows, so the process needs controlled force and lubrication.
Why does a deep-draw press need a die cushion?
The cushion holds the blank edge with a controlled force while the punch draws. Too little force causes wrinkles, and too much causes tearing, so a well-controlled cushion improves the quality of the part.
Which materials can be deep drawn?
Soft steels, stainless steels, aluminium and brass are commonly drawn. The depth possible depends on the material, thickness and tooling, so ask the maker or the tool designer for guidance on your part.