June 24, 2007
June 24, 2007
June 27, 2007
12.218.1 - 12.218.10
An Integrated Approach to Manufacturing Design Abstract
A major problem for students in engineering programs is the integration of materials from various course subjects. Manufacturing engineers must integrate various subject materials to produce quality products at a competitive cost. The cost is controlled not only by the design but also by the materials and processes used to obtain the desired shape of the design. A software program was developed to assist students to consider material properties, mechanical properties, and cost considerations in selecting the best material and shape to meet specific design requirements involving load and deflection restrictions for simple structures. The software is used in the basic manufacturing processes course to assist students in the evaluation of different materials and shapes to meet specific design constraints for simple structures.
The basic manufacturing processes course in the Industrial Engineering program at the University is scheduled for the second semester of the junior year, after the students have had courses on material properties and the strength of materials. The course is required also by the mechanical engineering and the dual degree mechanical and aerospace engineering students, so it is possible to have a multi-disciplinary project. In addition to meeting the ABET requirements, it is also a good review for students taking the Fundamentals of Engineering (FE) exam. The class size ranges between 40 to 60 students in the fall semester and 85-125 students in the spring semester. The team size varies from 2-4 students, with an occasional team of 5 students.
A major purpose of the project is to integrate materials from their basic materials, strength of materials, cost estimating, and programming skills courses. For example, the students can calculate the moment of inertia, but often do not realize the impact of that upon the total cost of a basic structure. Students are first taught the basics about strength to weight ratios, which involve the ratio of the mechanical property of tensile strength to the material property of density, and the impact of these ratios upon cost. A simple problem is done manually to illustrate the calculation procedure that the software performs so that the students understand the results obtained by the model.
Need for Software Development
There are currently no software packages that follow this approach to materials selection considering design constraints and various basic structural shapes. The initial software developed1 was based upon materials2,3 used for teaching a basic manufacturing processes course
Creese, R., & Gupta, D. (2007, June), An Integrated Approach To Manufacturing Design Paper presented at 2007 Annual Conference & Exposition, Honolulu, Hawaii. https://peer.asee.org/1840
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