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Formación de alta presión interna en microcomponentes

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TODE20140625001
Publicado:
18/01/2016
Caducidad:
30/06/2016
Resumen:
Una universidad alemana de ciencias aplicadas ofrece un nuevo proceso de formación de alta presión interna que permite conseguir dimensiones exactas sin deformación elástica. Con este proceso es posible desarrollar microcomponentes para tecnologías médicas (implantes, instrumentos quirúrgicos, endoscopia), microfluídica, industria de automoción (actuadores) o sensores. Sus ventajas incluyen, entre otras, fabricación precisa de microcomponentes, solidificación de las piezas mediante deformación en frío, compensación de deformaciones elásticas o adaptación sencilla a sistemas existentes. La universidad ofrece licencias a empresas.

Details

Tittle:
Internal high-pressure forming of micro-components
Summary:
A German university of applied sciences offers a new process for internal high pressure forming that renders possible to achieve accurate dimensions without elastic deformations. It is thus possible to realize micro-components, e.g. for medical technology, automotive industry or sensor applications. Industrial licenses are sought.
Description:
A German university of applied sciences invented a device for internal high-pressure forming of micro-components from tubular moulding blanks.

The Internal high-pressure forming method generates precise structural shapes by expanding a metallic, usually tubular, moulding blank within a forming tool. This is realized through the pressure of a fluid acting on the inside of the workpiece until the workpiece wall is bearing on the surrounding impression of the forming tool.

In the novel design of the German university, a carriage slides along guides. It is moved by a drive mounted separately from the guides. Hereby, the drive is coupled to the carriage free of any transverse forces. This minimizes elastic deformations and avoids bending stresses in the plungers. The relative position between guide and forming tool is maintained.
The process has proven to be reliable in many tests and can be adapted to existing systems.

The process offers opportunities for many applications:
Hydroforming is used for the forming of complex hollow part geometries, among others, the mass production of components for the automotive industry (e.g. parts of the drive mechanism or the chassis), pipeline construction (e.g. branch elements and adapters), as well as mountings (doors, baths). However, to date applications have been restricted to the production of parts with cross sectional dimensions larger than 20 mm. Internal high-pressure forming has, until now, not been utilised for components in micro-technology (with cross sectional dimensions typically in the range of <1 mm).

Special problems that occur in the production of micro-components are elastic deformations in the jig and tool components during the forming process. A particular benefit of the novel design is that elastic tool deformations are compensated and the dimensional accuracy that can be achieved in the production of micro-components. This process realizes parts that could not be produced by other processes. Possible applications for such micro-components are e.g. medical technology (implants, surgical devices, endoscopy), micro-fluidics, sensor technology and automotive (actuating elements).

The university of applied sciences offers licences to industrial companies, e.g. from automotive, pipeline, medical industry.
Advantages and Innovations:
· Precise manufacturing of micro-components
· Closed one-piece structures with complex cross-sectional profiles are enabled
· Solidification of the part by cold deformation
· Compensation of elastic tool deformations
· High process reliability
· Simple adaptation to existing systems
Stage of Development:
Available for demonstration
IPs:
Patents granted
CommeR Statunts Regarding IPR Status:
Patents are granted in USA, Germany, France, Great Britain and Switzerland.

Partner sought

Type and Role of Partner Sought:
The university of applied sciences offers licences to industrial companies, e.g. from automotive, pipeline, medical industry.

Client

Type and Size of Client:
University
Already Engaged in Trans-National Cooperation:
No
Languages Spoken:
English
German

Keywords

Technology Keywords:
02002005 Forming (rolling, forging, pressing, drawing)
02009012 Ingeniería de automoción
05005 Micro y nanotecnología