Virtual Exhibition of NAS of Belarus
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Technology and equipment for high velocity sheet-metal forming
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Contact Information

The Department of Physical-Engineering Sciences
The State Scientific Institution "The Physical-Technical Institute of the National Academy of Sciences of Belarus"
Ms Gritsik Kristina
+375 44 776 70 88
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Research institute from Belarus specialising in materials processing offers technology and equipment for high velocity sheet-metal forming.[br][/br][br][/br]Present designs require materials with specific properties. With increasing strength and hardness of the metals that are being formed the conventional stamping becoming substantially more difficult to apply. Therefore to process hard forming materials the high velocity forming (HVF) methods are used (e.g., explosive forming, magnetic pulse forming, electro-hydraulic forming).[br][/br][br][/br]In the offered technology (impact hydroforming) the pressure pulse is created by air-driven head hitting the closed volume of liquid or elastic medium that fills the forming chamber. Developed pneumatic system accelerates head up to 50-100 m/s and the created pressure pulse is 100-300 MPa.[br][/br][br][/br]Main characteristic of the method and equipment:[br][/br]* High uniformity and controllability of applied pressure[br][/br]* Pressure pulse duration: 0.01-1 millisecond[br][/br]* Processed materials: aluminium alloys, carbon and stainless steel, titanium, brass, copper, niobium, etc.[br][/br]* Blank thickness: 0.3-3 mm[br][/br]* One-sided die (it is possible to process blanks of different thickness using same die), as the stamping is done by a liquid (water, oil) or polyurethane plate[br][/br]* Resulting roughness is not worse then that of a blank[br][/br]* Productivity: 60-100 pieces/hour[br][/br]* Press footprint: 2.5 x 2.5 m[br][/br]* Energy source: compressed air 0.63 MPa
Technology Type

Technology Benefits
Efficiency of the impact hydroforming equipment is about 40% compared to other high velocity forming methods (20-30%), such as explosive forming, magnetic pulse forming, electro-hydraulic forming.[br][/br][br][/br]Pneumatic system used in the equipment is more convenient and safe than the capacitors of magnetic forming or electrical-hydraulic forming.
Development Stage
 Currently in use/production

Intellectual Property Rights
 Secret Know-How

Range of Applications
The method is especially useful for complex parts from hard forming materials (high-temperature alloys, titanium alloys, tungsten alloys) for example in aerospace industry, as well as for processing of ultra-pure metals since there is no pollution of blank with tooling particles.
Classifier Used at the Enterprise Europe Network
 Space and Aerospace

Classifier Used at the Technology Transfer Network of Inc.

Preferable Regions
 North America
 South America
Type of Collaboration Sought
 R&D Contract
 For Sale

Available Technical Assistance
© National Academy of Sciences of Belarus, Innovation Association "Republican Centre for Technology Transfer"
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