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Process Development of the Vaporizing Foil Actuator Welding Technique.pdf (5.43 MB)
ETD Abstract Container
Abstract Header
Process Development of the Vaporizing Foil Actuator Welding Technique
Author Info
Ufferman, Brian
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=osu1598019266142535
Abstract Details
Year and Degree
2020, Doctor of Philosophy, Ohio State University, Materials Science and Engineering.
Abstract
The industrial focus on continuous improvement for products is leading design engineers to consider multi-material design concepts more frequently. The design concepts use the advantages of each material while simultaneously minimizing the drawbacks. It also allows for the overall weight of the products to be reduced. Some traditional joining methods, though, struggle to join dissimilar material combinations. A technique known as vaporizing foil actuator welding, which was developed around ten years ago, is a solid-state joining method that has the potential to overcome the barriers to dissimilar material joining. The biggest drawbacks of vaporizing foil actuator welding are that it is still exclusively used in laboratory settings and early in the technology development process. As such, there is not enough confidence in the process for it to be transitioned to manufacturing environments yet. This work begins by analyzing the current state of the technology and identifying a roadmap to achieve a transition to manufacturing. The analysis found that increased confidence in the technology requires sample to sample repeatability to be improved. Beyond that, the process also needs to be fully automated before it can be considered as a viable technique for mass production. In order to further develop the technique, a fully automated work cell was constructed. By removing the human element from the process, this cell helped identify iii the aspects which contribute to process variability. The positioning of the vaporizing foil actuator was identified as the most important factor in process stability. A small set of samples were made in the automated cell with the addition of one component epoxy adhesive around the perimeter of the weld. These samples showed improved process repeatability compared with the samples made without adhesive. This indicates that small amounts of adhesive may be critical in using the process in industrial settings. Additionally, work was performed with manual positioning and adhesive dispensing. This work found that a hybrid joint behaves like traditional weld bonding, where the addition of adhesive makes the joint stronger than if either of the two joining methods were used on their own. To realize this performance with vaporizing foil actuator welding, though, the adhesive needs to be protected from burning during the rapid compression of air during the impact process.
Committee
Glenn Daehn (Advisor)
Alan Luo (Committee Member)
Antonio Ramirez (Committee Member)
Jenifer Locke (Committee Member)
Pages
162 p.
Subject Headings
Materials Science
Keywords
VFAW
;
technology readiness level
;
process development
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Citations
Ufferman, B. (2020).
Process Development of the Vaporizing Foil Actuator Welding Technique
[Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1598019266142535
APA Style (7th edition)
Ufferman, Brian.
Process Development of the Vaporizing Foil Actuator Welding Technique.
2020. Ohio State University, Doctoral dissertation.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=osu1598019266142535.
MLA Style (8th edition)
Ufferman, Brian. "Process Development of the Vaporizing Foil Actuator Welding Technique." Doctoral dissertation, Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1598019266142535
Chicago Manual of Style (17th edition)
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Document number:
osu1598019266142535
Download Count:
201
Copyright Info
© 2020, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.