Effect of laser peen forming process parameters on bending and surface quality of Ti-6Al-4V sheets

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

Laser peen forming (LPF) is a metal forming process that utilizes laser-induced mechanical shock waves to form desired shapes or modify bent structures. The present work focuses on the applicability of LPF to Ti-6Al-4V sheets, to identify an optimal LPF process parameter window and achieve desired bending without compromising the surface quality within the peened region. The effect of LPF process parameters, i.e. laser power density, overlap, type of sacrificial overlay, and the number of peening sequences was investigated for specimens with different thicknesses. The laser power density and number of peening sequences were the most influential parameters that affect the bending of the specimens. Using sacrificial overlay has a significant effect on the bending and surface quality of the specimens. Surface quality after LPF was assessed by measuring the roughness in the peened region. In experiments without a sacrificial overlay, a black titanium oxide residue on the peened region was observed and additionally, small micro-cracks were found in the near surface region. Further characterization of the peened region revealed that the average crack length increased with increase in laser power density. Two possible LPF process parameter combinations were identified to obtain bending in the peened region, where LPF with sacrificial overlay resulted in no surface damage. Furthermore, residual stresses were determined at various LPF process parameters by incremental hole-drilling method in the peened region.

OriginalspracheEnglisch
Aufsatznummer117578
ZeitschriftJournal of Materials Processing Technology
Jahrgang305
Anzahl der Seiten16
ISSN0924-0136
DOIs
PublikationsstatusErschienen - 01.07.2022

DOI

Zuletzt angesehen

Publikationen

  1. Non-native Douglas fir promotes epigeal spider density, but has a mixed effect on functional diversity
  2. Effects on the (CSR) Reputation
  3. Grausamer Optimismus
  4. The untapped potential of Games for Health in times of crises. A critical reflection
  5. Skill learning as a concept in life-span developmental psychology
  6. Minimalist Training
  7. Hidden in full view
  8. Note on the Lingen case
  9. Analysis of Kinetic Dynamics of the Multipole Resonance Probe
  10. Academia's obsession with quantity
  11. Behind the Scenes of Automation
  12. Community resilience for a 1.5 degrees C world
  13. The Development of Civil Societies
  14. Joseph Heller
  15. Rent Control, Market Segmentation, and Misallocation: Causal Evidence from a Large-Scale Policy Intervention
  16. Work in Progres Work on Progress
  17. Unfreiwillige Mitarbeit
  18. Resilience or vulnerability? Vegetation patterns of a Central Tibetan pastoral ecotone
  19. The most frequent phrasal verbs in English language EU documents - A corpus-based analysis and its implications
  20. Sustainable digitalization – fostering the twin transformation in a transdisciplinary way
  21. Effectiveness of a web-based intervention for injured claimants
  22. Effects of facebook activities on the performance of start-ups
  23. Exploring the potential of SMEs to build individual, organizational, and community resilience through sustainability-oriented business practices
  24. Using gender theories to analyse nature resource management
  25. Ecosystem services as a boundary object for sustainability
  26. Impact of tree diversity and environmental conditions on the survival of shrub species in a forest biodiversity experiment in subtropical China
  27. Innovative approaches in mathematical modeling
  28. Leßmann, Daniel
  29. Consequences, morality, and time in environmental risk evaluation
  30. Seth Price. Decimating Digital Data