Date of Award
5-2016
Thesis Date
5-2016
Degree Type
Honors Thesis-Unrestricted
Degree Name
B.S.
Department
Mechanical Engineering
Degree Program
Mechanical Engineering
Director
Michael Eller
Abstract
The objective of the report is to investigate the feasibility and reliability of additive friction stir manufacturing of 7055 aluminum alloy. This is a technique in which multiple lap welds are performed to create a three-dimensional part out of relatively thin plate aluminum. To accomplish this, a four inch stack of 7055 aluminum alloy lap welds must be created. The solid weld nugget is then machined out of the center of the welded stack to create ASTM approved subsize tensile coupons. Rockwell hardness, yield strength, ultimate tensile strength, and percent elongation information is gathered from the tensile coupons to investigate the effectiveness of the additive friction stir manufacturing process. The data shows that the additive manufactured material experiences a significant reduction in strength and percent elongation while not showing any significant response to heat treatment. Suggestions are made regarding possible changes to the weld schedule that could improve the material properties of the additive manufactured aluminum.
Recommended Citation
Puleo, Shawn Michael, "Additive Friction Stir Manufacturing of 7055 Aluminum Alloy" (2016). Senior Honors Theses. 75.
https://scholarworks.uno.edu/honors_theses/75
Rights
The University of New Orleans and its agents retain the non-exclusive license to archive and make accessible this honors thesis in whole or part in all forms of media, now or hereafter known. The author retains all other ownership rights to the copyright of the honors thesis.