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Vol. 42 No. 1 (2017): Journal for Technology of Plasticity
Original articles

Generation and shape control of linelinked preforms by laser melting

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  • Christine Schattmann1,
  • Cooper Hennick,
  • Heiko Brüning,
  • Frank E. Pfefferkorn,
  • Frank Vollertsen
Christine Schattmann1
Bremer Institut für angewandte Strahltechnik, Klagenfurterstr. 5, 28359 Bremen, Germany
Cooper Hennick
Bremer Institut für angewandte Strahltechnik, Klagenfurterstr. 5, 28359 Bremen, Germany
Heiko Brüning
Bremer Institut für angewandte Strahltechnik, Klagenfurterstr. 5, 28359 Bremen, Germany
Frank E. Pfefferkorn
Dept. of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Ave., Madison, WI 53706, United States of America
Frank Vollertsen
Bremer Institut für angewandte Strahltechnik, Klagenfurterstr. 5, 28359 Bremen, Germany and University of Bremen
DOI: https://doi.org/10.24867/jtp.2017.42-1.21-32

Published 2017-06-30

abstract views: 9 // Full text article (PDF): 0


Keywords

  • Laser micro machining,
  • miniaturization,
  • cold forming,
  • metal forming,
  • micro forming

How to Cite

Schattmann1, C., Hennick, C., Brüning, H., Pfefferkorn, F. E., & Vollertsen, F. (2017). Generation and shape control of linelinked preforms by laser melting. Advanced Technologies and Materials, 42(1), 21–32. https://doi.org/10.24867/jtp.2017.42-1.21-32
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Mechanical upsetting is a wide-spread manufacturing process in the macro range used to increase the diameter of a work piece. However, this process does not transfer well to the micro range because maximum upset ratios decrease to values below 2. A laser-based process has previously been used to take advantage of size effects in micro range and generate preforms which can be cold formed to a final shape within a single step. A variation of this process is presented in this paper where many preforms are generated on one long rod of diameter 0.2 mm to 0.5 mm in order to alleviate handling problems associated with micro parts and simplify the manufacturing process chain. An extension of the production method is investigated which also allows control over the shape of the produced preforms.

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