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Tecnología para aumentar la precisión de mecanizado en máquinas-herramientas de corte

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TODE20151203002
Publicado:
08/12/2015
Caducidad:
08/12/2016
Resumen:
Un equipo de investigación de una universidad alemana ha desarrollado una tecnología para mejorar considerablemente la precisión de mecanizado en máquinas-herramientas de corte compensando la desviación de la posición del borde cortante causada por efectos térmicos. La temperatura de la herramienta afecta a la posición del borde cortante, y por lo tanto a la precisión de mecanizado con diferentes valores de desviación en todo el proceso. Se buscan socios industriales interesados en establecer acuerdos de cooperación técnica para mejorar e integrar la solución en máquinas-herramientas actuales.

Details

Tittle:
Improving the machining accuracy of cutting machine tools
Summary:
A research team at a German university of technology has developed a technology for significant improvement of the machining accuracy of cutting machine tools by compensating the deviation of the position of the cutting edge caused by thermal effects. The team is searching for technical cooperation agreements with industrial partners to integrate the solution into existing machine tool structures and to refine it.
Description:
A research team at a German university of technology, Department of Machine tools and Production processes, has developed a technology for a significant improvement of the machining accuracy of cutting machine tools. A cutting process usually starts with a significant lower temperature of the tool, which is rising during the process and becomes stationary after a rather long time, sometimes not at all.
The temperature of the tool including its chuck directly affects the position of the cutting edge and so the achieving machining accuracy with different values of deviation along the process.
The developed solution consists of a targeted inductive, i.e. contact-free, pre-heating of the tool before starting the process to minimize the timeframe of transient temperature, followed by a minimum feed of thermal energy to stabilize the temperature during the whole process.
This considerably lowers the positional deviation of the cutting edge and so enables a much higher machining accuracy.
During experimental studies, a deviation of 93 µm could be compensated down to 3 µm and confirmed by internal and external certifications.
The solution consists of a pre-heating station between idle position of the tool(s) and the process area as well as the necessary controlling procedure, protected by a German process patent application.

The team is now searching for industrial partners, which are either producing machine tools or core system components (i.e. main spindles, tool chucks etc.) or end-users of these machine tools to integrate the solution into existing machine tool structures and to refine it for different types of cutting processes based on technical cooperation agreements.
Advantages and Innovations:
Main advantages of the solution are:
· Controlled inductive tempering of the tool and the chuck enables a steady-state temperature level over the whole processing time from the beginning on, which in normal case can only be reached after a long time, respectively not at all.
· The adapted cooling can be reduced. So this leads to a considerable saving of coolant and prevents the associated health and environment risks and the high energy consumption as well.
· The solution is easy to retrofit on most metal cutting machine tools.
Stage of Development:
Under development/lab tested
IPs:
Secret Know-how,Patent(s) applied for but not yet granted
CommeR Statunts Regarding IPR Status:
Germany

Partner sought

Type and Role of Partner Sought:
Type of partner sought:
Industrial Partner

Role of partner sought:
Production of Metal-cutting Machine Tools or System Components of such Machine Tools (i.e. tool chucks, main spindles etc.), end-users of Metal-cutting Machine Tools (?)

Task to be performed:
Joint integration into existing machine tool structures and joint test

Client

Type and Size of Client:
University
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English
German

Keywords

Technology Keywords:
02002009 Machine Tools
02002010 Mecanizado (torneado, perforado, moldeado, fresado, cepillado, cortado)
02002011 Mecanizado fino (triturado, lapeado)