NDLI: An Approach to Automate Concept Generation of Sheet Metal Parts Based on Manufacturing Operations

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Patel, Jay Matthew, I. Campbell
Copyright Year	2008
Abstract	This paper describes an approach to automate the design for sheet metal parts that are not only novel and manufacturable but also satisfies multiple objective functions such as material cost and manufacturability. Unlike commercial software tools such as Pro/SHEETMETAL which aids the user in finalizing and determining the sequence of manufacturing operations for a specified component, our approach starts with spatial constraints in order to create the component geometries and helps the designer design. While there is an enormous set of parts that can feasibly be generated with sheet metal, it is difficult to define this space systematically. To solve this problem, we currently have 88 design rules that have been developed for four basic sheet metal operations: slitting, notching, shearing, and bending. A recipe of the operations for a final optimal design is then presented to the manufacturing engineers thus saving them time and cost. The technique revealed in this paper represents candidate solutions as a graph of nodes and arcs where each node is a rectangular patch of sheet metal, and modifications are progressively made to the sheet to maintain the parts manufacturability. They are presented in the form of Standard Tessellation Language files (.stl) that can be transferred into available modeling software for further analysis. The overall purpose of this research is to provide creative designs to the designer granting him/her a new perspective and to check all the solutions for manufacturability in the early stage of design process. An example sheet metal design problem is shown in this paper with some of the preliminary designs that our approach created.
Sponsorship	Design Engineering Division and Computers in Engineering Division
Starting Page	133
Ending Page	142
Page Count	10
File Format	PDF
ISBN	9780791843253
DOI	10.1115/DETC2008-49648
e-ISBN	0791838315
Volume Number	Volume 1: 34th Design Automation Conference, Parts A and B
Conference Proceedings	ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2008-08-03
Publisher Place	Brooklyn, New York, USA
Access Restriction	Subscribed
Subject Keyword	Rule-based system Design automation Graph Sheet metal Design for manufacturability Topology Grammar Optimization Manufacturing
Content Type	Text
Resource Type	Article

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