Investigation of new tool design for incremental profile forming

Publikation: Beiträge in ZeitschriftenKonferenzaufsätze in FachzeitschriftenForschungbegutachtet

Authors

Incremental Profile Forming (IPF) is a highly flexible and versatile process for the manufacture of tubular parts with variable cross-section design along the centre-line of the tube. Within an incremental approach multiple forming tools with arbitrary geometries indent into the tube and move along predefined tool paths to deform the desired tubular shape. Since rigid forming tools are used, a sliding friction contact between tool and workpiece exists leading to several process limits. On the one hand tearing occurs in the forming zone due to high tensile stresses near the contact area between tool and workpiece. On the other hand the workpiece properties in terms of surface quality decrease due to wear. Unlike incremental sheet forming processes, where the workpiece surface area is under contact load twice (assuming a 50 % side overlap between subsequent tool paths), the deformed surface areas in IPF experience several repetitive contact loads leading to comparatively higher occurrence of wear. In order to improve surface qualities as well as to lower the loads in near contact regions by the reduction of friction, novel tool designs for IPF are introduced which allow a smoother transition of the material flow into the forming region. Besides a rigid tool, a roller-based tool is designed for substituting the conventional sliding friction by a rolling friction mode. Within experimental studies the influence of the tool shape as well as the rolling friction condition was examined. Comparative analyses show that the process forces are decreased by the use of the new tool designs leading to higher formability in IPF since a higher radial tool infeed is achievable. For the analysis of the component loads e.g. contact stresses and corresponding distributions in the contact region between workpiece and forming tool a numerical model is developed. A significant reduction of process limiting tensile stresses in contact near regions could be proven. Beside the reduction of process forces an improvement of the surface quality as well as a more accurate geometry of the workpiece were achieved by the use of the new tool designs.

OriginalspracheEnglisch
ZeitschriftProcedia Engineering
Jahrgang207
Seiten (von - bis)1767-1772
Anzahl der Seiten6
ISSN1877-7058
DOIs
PublikationsstatusErschienen - 01.01.2017
Extern publiziertJa

DOI

Zuletzt angesehen

Publikationen

  1. Does Carbon Disclosure Drive Carbon Performance
  2. Automation in Clinical Laboratories
  3. Increasing personal initiative in small business managers or owners leads to entrepreneurial success: A theory-based controlled randomized field intervention for evidence-based management
  4. The research potential of new types of enterprise data based on surveys from official statistics in Germany
  5. Not Only a Workplace
  6. Who is a Migrant? Abandoning the Nation-State Point of View in the Study of Migration
  7. Wirtschaften in Netzen
  8. Frames of systems change in sustainability transformations: Lessons from sociotechnical systems and circular economy case studies
  9. Der Mensch in Zahlen
  10. The lens of polycentricity
  11. Bimodal Enterprise Architecture Management
  12. Collaborative decision making in sustainable flood risk management
  13. Themes in the development of emotion regulation in childhood and adolescence and a transactional model
  14. Non-local modeling of size effects in amorphous metals
  15. The Impact of TV Ads on the Individual User's Purchasing Behavior
  16. Effect of Temperature and Strain Rate on Formability of Titanium Alloy KS1.2ASN
  17. Lengthscale-dependent modelling of ductile failure in metallic microstructures
  18. Effectiveness of a Web-Based Intervention in Reducing Depression and Sickness Absence
  19. Two types of ‘enough’
  20. Guest Editors of Special Issue:
  21. How and Why Precise Anchors Distinctly Affect Anchor Recipients and Senders
  22. Disrupting Business
  23. Carbon Management Accounting
  24. Situated Institutions: The Role of Place, Space and Embeddedness in Institutional Dynamics
  25. Logistische Lageranalyse und Methodenvalidierung
  26. Inclusive conservation and the Post-2020 Global Biodiversity Framework
  27. Discourses for deep transformation
  28. Challenges in calculating two-year college student transfer rates to four-year colleges
  29. A review on the use of calcium chloride in applied thermal engineering
  30. Controlling the unsteady analogue of saddle stagnation points
  31. Evaluation von Unterrichtsstandards