Asee peer logo

Board # 136 : MAKER: Redesign of a Ratchet for Additive Manufacturing

Download Paper |

Conference

2017 ASEE Annual Conference & Exposition

Location

Columbus, Ohio

Publication Date

June 24, 2017

Start Date

June 24, 2017

End Date

June 28, 2017

Conference Session

Make It!

Tagged Division

Manufacturing

Page Count

2

Permanent URL

https://peer.asee.org/27743

Download Count

22

Request a correction

Paper Authors

author page

Daniel David Warfield

biography

Serdar Tumkor University of Pittsburgh at Johnstown

visit author page

Serdar Tumkor is an Assistant Professor of Mechanical Engineering Technology at University of Pittsburgh at Johnstown. Dr. Tumkor has more than 20 years of experience in education, having taught at Stevens Institute of Technology and Istanbul Technical University. His engineering experience includes design, manufacturing, and product development. He has been lecturing Manufacturing Processes, Machine Design, Engineering Design, and Computer Aided Technical Drawing courses.

visit author page

biography

Hugh Jack P.E. Western Carolina University Orcid 16x16 orcid.org/0000-0003-4299-8561

visit author page

Dr. Jack is not an author. The paper has been submitted on behalf of the other authors.

visit author page

Download Paper |

Abstract

Fused filament fabrication (FFF) is different than other manufacturing methods. In most processes of polymer manufacturing the internal structure of a product is solid filled. However, it does not necessarily have to be solid when a product is 3D printed. It is an advantage of having an infill structure with different densities. The infill density and shell number play a large role in the mechanical properties of the final 3D model. The way in which the pattern is generated influences the mechanical properties of a part as well. The way a slicing program generates the infill pattern is largely based on position and orientation of the part on the print bed. As a result, with similar conditions, mechanical properties can vary greatly based on the initial orientation and the extruder path. In this study, the internal structure of a 3D printed part is parametrically modeled in a CAD system, analyzed with finite element method (FEM) to see the consequences of different internal structures of AM part. FEM simulations of a ratchet design with custom designed infills and walls for FFF has been used to compare the effects of the internal structure to the strength and flexibility.

Warfield, D. D., & Tumkor, S., & Jack, H. (2017, June), Board # 136 : MAKER: Redesign of a Ratchet for Additive Manufacturing Paper presented at 2017 ASEE Annual Conference & Exposition, Columbus, Ohio. https://peer.asee.org/27743

ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 2017 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015