Options
Semi-stationary shoulder bobbin tool (S3BT): a new approach in high speed friction stir welding
Citation Link: https://doi.org/10.15480/882.1325
Publikationstyp
Doctoral Thesis
Date Issued
2016
Sprache
English
Author(s)
Advisor
Referee
Title Granting Institution
Technische Universität Hamburg
Place of Title Granting Institution
Hamburg
Examination Date
2016-04-29
TORE-DOI
Next to the advantages, in Bobbin Tool Friction Stir Welding (BT-FSW) the excessive heat generated by both shoulders leads to an excessive degradation of the joint microstructure and a consequent loss in mechanical properties. During this work a new set of welding tools and a new unique experimental BT-FSW system was created. An analytical model was introduced, which identified the kinetic energy on the retreating side of the weld zone as a critical value in the modelling to indicate the experimental feasibility. The Semi-Stationary Bobbin Tool (S3BT) process variant has shown good results in reducing handling forces in combination with considerable high welding speeds of 3000 mm/min and low energy inputs. The adaption of the tool concept to articulated arm robots appears realistic.
Subjects
Rührreibschweißen, Doppelschulterwerkzeug, Industrieroboter, Knickarmroboter, CFD Simulation, Temperatur Simulation, Wärmeeintrag, kinetische Energie, semi-stationäre Doppelschulterwerkzeug, hochgeschwindigkeits FSW, Schweißgeschwindigkeit, Schmidtsche Wärmequelle,
Bobbin tool, BT, friction stir welding, FSW, high speed, industrial robot, robotic FSW, kinetic energy, Comparable kinetic energy, CKE, Relative kinetic energy RKE, BT-FSW, semi-stationary shoulder, S3BT, S^3BT, reduced handling forces, CFD simulation, thermal simulation, temperature simulation, heat transfer, asymmetric analytical shear layer model, A2SLM, A^2SLM, viscosity model, AA6082, AA6082-T4, material loss, Schmidt heat source, thermal-pseudo-mechanical heat source, velocity field, welding speed, stationary shoulder, self-reacting, controlled,
DDC Class
620: Ingenieurwissenschaften
Loading...
Name
Diss_Scupin_SemiStationaryShoulder_BT-FSW_Bobbin_Tool_Friction_Stir_Welding_S3BT.pdf
Size
7.95 MB
Format
Adobe PDF