Asee peer logo

Teaching Assembly Planning Using AND/OR Graph in a Design and Manufacture Lab Course

Download Paper |

Conference

2020 ASEE Virtual Annual Conference Content Access

Location

Virtual On line

Publication Date

June 22, 2020

Start Date

June 22, 2020

End Date

June 26, 2021

Conference Session

Learning Strategies

Tagged Division

Manufacturing

Page Count

10

DOI

10.18260/1-2--35270

Permanent URL

https://www.jee.org/35270

Download Count

16

Request a correction

Paper Authors

biography

Khalifa H. Harib United Arab Emirates University

visit author page

Khalifa H. Harib joined the United Arab Emirates University in 1997. Currently he serves as associate professor of mechanical engineering. He obtained his B.Sc. degree from UAE University in 1986, and his M.Sc. and Ph.D. degrees from the Ohio State University in 1993 and 1997, all in mechanical engineering. His research and teaching interests include robotics, mechatronics, dynamics and control, and computer aided manufacturing.

visit author page

biography

Sangarappillai Sivaloganathan United Arab Emirates University

visit author page

Dr Sangarappillai Sivaloganathan – Siva is a Srilankan by birth and a citizen of the United Kingdom. His experience in Sri-lanka started with an year’s post-graduate apprenticeship in the manufacturing shops of the Government Railway and nine years in the Cement Industry. He graduated as a Mechanical Engineer from University of Srilanka, and obtained his Masters from the University of Aston and PhD from City University of London, both in the UK. He started his career in the UK as the Senior Research Assistant at the SERC Engineering Design Centre. He joined Brunel University in 1995 where he worked for 18 years before joining United Arab Emirates University in August 2011. During his stay at Brunel he has worked with many British industries. Dr Sivaloganathan is a keen researcher in Design and was the Convenor for the International Engineering Design Conferences in 1998 and 2000. He has been a regular participant of the ASEE annual conference during the past few years. He has published more than 85 papers in reputed journals and conferences.

visit author page

biography

Hayder Zulafqar Ali United Arab Emirates University

visit author page

Hayder Ali is an instructor in the Mechanical Engineering Department at United Arab Emirates University (UAEU). Before joining UAEU, he received training on a long term technology transfer (plastic mold making) project between government of Pakistan and government of Japan. He holds a master's degree in Mechatronics Engineering and a bachelor's in Mechanical Engineering, both from the University of Engineering and Technology, Lahore, Pakistan. He has extensive teaching and industrial experience.

visit author page

biography

Bobby Mathew United Arab Emirates University

visit author page

Dr. Mathew is an assistant professor with the mechanical engineering department at United Arab Emirates University, UAE. He started at UAEU in 2016. His teaching interests include heat transfer and fluid mechanics.

visit author page

Download Paper |

Abstract

Teaching Assembly Planning Using AND/OR Graph in a Design and Manufacture Lab Course A product is a set of components linked together through joints during the assembly process and each joint is made using an assembly technique. Assembly planning is the preparation of the detailed instructions for the assembly of a product and involves (a) evaluation of the processes and operations to be employed (b) selection of tooling and fixtures and (c) determining the sequence of operations. Assembly planning is a well-established topic in big industries like the aircraft and ship-building industries and there are specialist software packages for these industries [1, 2]. Assembly planning can be done at several levels such as the level of the entire production line, workstation level in a production line and at the product level. This paper describes how assembly planning principles and their implementation at the product level is taught to senior mechanical engineering students through the Design and Manufacture Lab course, so that they can use assembly planning in their graduation projects. The students were given a lecture on how multiple feasible assembly sequences can be generated and the engineer can choose the sequence which he wants, based on criteria such as machine availability, holding cost, tooling and fixturing needs etc. The AND/OR graph method was used to explain how the multiple sequences for the assembly of a product can be developed and presented for simultaneous consideration. They were explained how to develop an AND/OR graph for the disassembly of a product which could be used to explain the underlying (inverse) assembly process. The students were formed into groups of four and asked to dismantle and assemble a bearing puller which had twenty-nine constituent parts, and then to establish the AND/OR graph for the disassembly. The students were made to realize the benefits of handling sub-assemblies separately. They were then asked to extract the possible assembly sequences and choose one for the manufacture of a hypothetical 1000 units per week. They were prompted to identify suitable fixtures for the process they chose. A questionnaire survey was carried out at the end of the assignment. The paper will describe the method, the tasks in the assignment, student performance, answers to the survey questions and the lessons learned.

Harib, K. H., & Sivaloganathan, S., & Ali, H. Z., & Mathew, B. (2020, June), Teaching Assembly Planning Using AND/OR Graph in a Design and Manufacture Lab Course Paper presented at 2020 ASEE Virtual Annual Conference Content Access, Virtual On line . 10.18260/1-2--35270

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: © 2020 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