Layered Manufacturing by Reverse Engineering-Principle and Application

2010 ◽  
Vol 102-104 ◽  
pp. 436-440 ◽  
Author(s):  
Chang He Li ◽  
Zan Fang ◽  
Yi Cui ◽  
Y.C. Ding
Keyword(s):  
Reverse Engineering ◽  
Geometric Model ◽  
Layered Manufacturing ◽  
3D Cad ◽  
Cad Models ◽  
Real Objects ◽  
Production Complex ◽  
Design Production ◽  
Engineering Principle

Additive processes can be defined as layered manufacturing, based on the dispersed/accumulated principle, Layered manufacturing is directly transforming 3D CAD models to real objects, the reverse engineering of mechanism can be applied to layered manufacturing for production complex geometries for long-term consistency, and the analysis demonstrates the application of the reverse engineering fulfills the segments of design, production, inspection, test. The most notable advantage is the combination of digital technology and geometric model rebuilding technology.

Reconstructing 3D CAD models for simulation using imaging-based reverse engineering

2006 ◽  
Author(s):  
Sophie Voisin ◽  
David Page ◽  
Andreas Koschan ◽  
Mongi Abidi
Keyword(s):  
Reverse Engineering ◽  
3D Cad ◽  
Cad Models

Enhancing Model Reuse Through 3D Annotations: A Theoretical Proposal for an Annotation-Centered Design Intent and Design Rationale Communication

2013 ◽  
Author(s):  
Jorge Dorribo-Camba ◽  
Gerardo Alducin-Quintero ◽  
Pascual Perona ◽  
Manuel Contero
Keyword(s):  
3D Models ◽  
Design Rationale ◽  
Design Intent ◽  
Data Annotation ◽  
3D Cad ◽  
Cad Models ◽  
The Impact ◽  
Theoretical Proposal

The long term goals of this research are to study the effectiveness of CAD 3D annotation techniques to support the explicit communication of design intent and rationale, and to analyze the impact of the annotations in the alteration and reutilization of 3D models in a product design context. Towards these goals, we are initially examining the formal annotation practices defined by model-based standards such as ASME Y14.41-2012 and ISO 16792:2006, and their implementation in current CAD systems. This paper presents a prototype implementation of a module to automatically extract textual information from annotated 3D CAD models. Automated extraction of data annotation can be used to analyze both the content and the quality of the annotations with the purpose of determining what makes annotations effective and ultimately communicating design intent. The architecture of a system designed to manage and manipulate this information is also described and analyzed.

An Industrial Robot and a Laser Scanner as a Flexible Solution Towards an Automatic System for Reverse Engineering of Unknown Objects

Volume 2 ◽  
2004 ◽  
Author(s):  
So¨ren Larsson ◽  
J. A. P. Kjellander
Keyword(s):  
Reverse Engineering ◽  
Automatic System ◽  
Industrial Robot ◽  
Laser Scanner ◽  
Measuring System ◽  
Measuring Point ◽  
Cad System ◽  
Cad Models ◽  
Real Objects ◽  
Unknown Objects

Reverse Engineering (RE) is concerned with the problem of creating CAD-models of real objects by measuring point data from their surfaces. Current solutions either require manual interaction or expect the nature of the objects to be known. In order to create a fully automatic system for Reverse Engineering of unknown objects the software that creates the CAD-model must be able to control the operation of the measuring system. This paper presents a real implementation of a measuring system suited for that purpose. The experimental setup is based on an industrial robot with a laser scanner mounted at the tool-mounting flange. The key component of the system is a programable CAD-system. The CAD system is used to simulate and control the movement of the robot, as well as collecting the data acquired from both the laser scanner and from the robot’s positional system.

Development of a Process to Generate 3D CAD Models for Re-Engineering of Components for Aging Systems

2003 ◽  
Author(s):  
Zahed Siddique ◽  
Robert Ochs
Keyword(s):  
Reverse Engineering ◽  
New Technologies ◽  
Original Design ◽  
General Process ◽  
Cloud Data ◽  
3D Cad ◽  
Solid Models ◽  
Generate Surface ◽  
Cad Models ◽  
Point Data

Many systems are designed for useful life that go beyond decades. In most cases, especially when they are expensive, these systems need maintenance. Maintenance of aging systems, that are more than a decade old, requires improvement and/or replacement of components. In most instances new technologies became available, after original design and development, that can be applied to improve the existing aging components and sub-systems. Re-engineering of existing components is usually initiated from existing components. In many instances data packages, which include geometrical and manufacturing information, for these components are not available or incomplete. For mechanical systems, CAD tools provide flexibility and tools that can be used to perform analysis on components to measure performance before they are manufactured. Generation of parametric CAD models is essential to perform analysis and specify manufacturing processes for these components. Reverse engineering process can be used to develop surface and solid models of components from scanned point data for re-engineering. In this paper a general process to generate appropriate CAD models using reverse engineering for re-engineering applications is presented. A B-52 power pot tube is used as an example to demonstrate the steps, tools and techniques involved in development of models for re-engineering to generate surface and parametric solid models from point cloud data.

Long-Term Archiving of Exact 3D-CAD Geometry With JT

2015 ◽  
Author(s):  
T. Trinkel ◽  
R. Anderl ◽  
M. Zocholl ◽  
H. Eichhorn
Keyword(s):  
Computer Aided Design ◽  
Point Of View ◽  
3D Design ◽  
Data Format ◽  
3D Cad ◽  
Cad Models ◽  
Engineering Drawings ◽  
Single Data ◽  
Downstream Processes

The technology of Computer Aided Design (CAD) has been in use for 3D design for more than 30 years. Still today, the result of the 3D design process is usually a 2D engineering drawing. Thus, many downstream processes in the industry are dependent on engineering drawings. Nowadays, many companies are replacing their engineering drawings with 3D-CAD models and transforming their drawing-based processes into model-based processes. Consequently, these 3D-CAD models have to be archived and new methods to do so have to be implemented. The standardization of the Jupiter Tessellation (JT) file format specification as ISO 14306 could be an opportunity to use a single data format for both purposes: downstream processes and long-term archiving of exact 3D-CAD geometries. This paper describes an approach for long-term archiving of exact 3D-CAD geometries. Initially the state of the art in long-term archiving methodology and archiving systems is analyzed. In order to enable an investigation from a technological point of view, the ISO JT data format is examined subsequently. The formal and technological requirements for a JT-based approach are then derived from these analyses. The next step is to introduce a conceptual process for long-term archiving of exact 3D-CAD geometries with the JT data. As a proof of concept, this approach is implemented prototypically. Through a comparison of the representation of exact 3D-CAD geometries in the JT and STEP data formats, the conditions for responsible long-term archiving using JT are defined. As a conclusion, this paper provides an overview of the advantages and the associated risks of long-term archiving with the ISO JT data format for exact 3D-CAD geometries.

Sign in / Sign up

Export Citation Format

Share Document