Asee peer logo

Teaching GD&T Fundamentals in the Course Design of Machine Elements

Download Paper |

Conference

2021 ASEE Virtual Annual Conference Content Access

Location

Virtual Conference

Publication Date

July 26, 2021

Start Date

July 26, 2021

End Date

July 19, 2022

Conference Session

Machine Design Related

Tagged Division

Mechanical Engineering

Page Count

16

DOI

10.18260/1-2--37812

Permanent URL

https://peer.asee.org/37812

Download Count

923

Request a correction

Paper Authors

biography

Xiaobin Le P.E. Wentworth Institute of Technology

visit author page

Professor, Ph.D., PE., Mechanical Engineering Program, School of Engineering, Wentworth Institute of Technology, Boston, MA 02115, Phone: 617-989-4223, Email: Lex@wit.edu, Specialization in Computer-Aided Design, Mechanical Design, Finite Element Analysis, Fatigue Design, Solid Mechanics and Engineering Reliability

visit author page

biography

Anthony William Duva P.E. Wentworth Institute of Technology

visit author page

Anthony W. Duva
An Associate Professor in the Mechanical Engineering and Technology Department at Wentworth Institute of Technology since 2001 with 14 years of prior full time industrial experience. He has worked in the design of various technologies from advanced underwater and ultrahigh altitude propulsion systems to automated manufacturing equipment. His interests include advanced thermal and mechanical system design for green power generation.

visit author page

biography

Richard L. Roberts Wentworth Institute of Technology

visit author page

Associate Professor
Mechanical Engineering Program
College of Engineering
Wentworth Institute of Technology,
550 Huntington Ave.,
Boston, MA 02115

visit author page

Download Paper |

Abstract

Geometric Dimensioning and Tolerancing (GD&T) is an extremely important skill for mechanical engineering students who will mainly design mechanical devices and components. However, a GD&T course is typically not included in an undergraduate mechanical engineering curriculum. In our mechanical engineering curriculum, bits of basic concepts of GD&T are briefly mentioned or discussed in several different courses. It has been observed in the last several years that some students in their senior capstone project designs still didn’t know how to properly define assembly dimension tolerances or component dimension tolerances. In the last two years, the authors used one and a half weeks out of a total of a fifteen-week semester to teach GD&T fundamentals in the course Design of Machine Elements. Homework assignments and quizzes were used to check or to reinforce their understanding of GD&T fundamentals. Also, students were requested to implement what they had learned about GD&T fundamentals in two design projects. This paper will present the approach of teaching GD&T fundamentals and present the results from a class survey. The results indicated that our teaching GD&T fundamentals did facilitate students to develop a better understanding of the GD&T fundamentals and to determine dimension tolerances of free dimensions and mating dimensions.

Keywords: Mechanical Engineering, Mechanical Design, Geometric Dimensioning and Tolerance (GD&T), Free Dimension, Mating Dimension, Types of Fits, Free Dimension Tolerance, Mating Dimension Tolerance

Le, X., & Duva, A. W., & Roberts, R. L. (2021, July), Teaching GD&T Fundamentals in the Course Design of Machine Elements Paper presented at 2021 ASEE Virtual Annual Conference Content Access, Virtual Conference. 10.18260/1-2--37812

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: © 2021 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