Stationary Shoulder Friction Stir Assisted Scribe Technique for Dissimilar Joining
- BATTELLE (PACIFIC NW LAB)
We report on implementation of a stationary shoulder in dissimilar joints of Al-steel and Al-carbon fiber reinforced polymer (CFRP) using friction stir assisted scribe technology (FaST ). Viable joint strength similar to that with the conventional FAST process was demonstrated in Al-steel. A significant improvement in as-welded surface roughness for both Al-steel and Al-CFRP cases was achieved by using stationary shoulder. Interrupted lap shear tests performed on Al-steel joints and a corresponding computational model indicate the joint failure typically occurs in Al sheet via a crack tip that originates at the steel hook tip on the loading side. A similar fracture path was observed in an Al-CFRP joint.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1812530
- Report Number(s):
- PNNL-SA-156811
- Journal Information:
- Journal of Manufacturing Science and Engineering, Vol. 143, Issue 9
- Country of Publication:
- United States
- Language:
- English
Similar Records
Friction Stir Scribe Joining of Carbon Fiber Reinforced Polymer (CFRP) to Aluminum
Linking process and structure in the friction stir scribe joining of dissimilar materials: A computational approach with experimental support