Investigation of Laser Heating in Microforming Applying Sapphire Tools

The application of metal forming technologies to the production of metallic micro parts is limited by problems arising from size effects related to small dimensions. An approach to solve these problems is the laserassistance of the micro forming process to benefit from e.g. the growing influence of...

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Bibliographic Details
Published in:CIRP annals 2007, Vol.56 (1), p.321-326
Main Authors: Wulfsberg, J.P., Terzi, M.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Forming
Laser
Mechanical engineering. Machine design
Metals. Metallurgy
Miniaturization
Other forming methods
Precision engineering, watch making
Production techniques
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Summary:The application of metal forming technologies to the production of metallic micro parts is limited by problems arising from size effects related to small dimensions. An approach to solve these problems is the laserassistance of the micro forming process to benefit from e.g. the growing influence of thermodynamic aspects. Experimental investigations were carried out to determine the workpiece temperature by varying laser power at constant heating time. This is a substantial factor for the laser-assisted micro forming process design. Results from a numerical analysis using FEM techniques were compared with the ones from the test series. Furthermore micro forming investigations were made showing a dependence of the material micro structure from tool structure size and laser power.
ISSN:0007-8506
DOI:10.1016/j.cirp.2007.05.074