Distortion related aspects of cold forging as part of the manufacturing process

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearch

Authors

  • Dawid Nadolski
  • Stephan Hänisch
  • Alwin Schulz
  • Noomane Ben Khalifa
  • Franz Hoffmann
  • Hans-Werner Zoch
  • A. Erman Tekkaya
The distortion of cold forged shafts from the material 20MnCr5 (AISI 5120) after the heat treatment processes stress relieving and case hardening was studied experimentally. Besides the influence of the degree of deformation and the lubricant of the blanks also different initial states of the 20MnCr5, spheroidize annealed and ferritic-pearlitic microstructure, were analyzed. All investigated shafts after the stress relieving showed the same behavior, a decrease of the extruded diameter and an increase of tine length. The case hardening leads to an increase of all shaft dimensions. The effect of the different forging parameters and microstructures on the stress reliving process was relatively small. After case hardening shafts from the two initial states had different change in diameter and length, which indicates an anisotropic size change of ferritic-pearlitic shafts.
Translated title of the contributionZugehörige Aspekte des Verzugs beim Kaltschmieden als Teil des Fertigungsprozesses
Original languageEnglish
Title of host publicationIDE, International Conference on Distortion Engineering : IDE 2011 Proceedings
EditorsHans-Werner Zoch, Th. Lübben
Number of pages8
Volume3
PublisherLeibniz-Institut für Werkstofforientierte Technologie - IWT Bremen
Publication date2011
Pages267-274
ISBN (print)978-3-88722-724-1
Publication statusPublished - 2011
Externally publishedYes
Event3rd International Conference on Distortion Engineering - 2011 - Universität Bremen, Bremen, Germany
Duration: 14.09.201116.09.2011
Conference number: 3