Course Objectives

• Understand concept of reverse engineering
• Understand principles of imaging, cross-sectional scanning, digital data, computational graphics
• Understand legality of reverse engineering concept

Learning Outcomes

• Use the Digitized Shape Editor (DSE) workbench
• Import and process the digitized data (scans or clouds of points),
• Quick Surface Reconstruction (QSR) from the digitized data.
• Create a mesh and extract characteristic curves to create surfaces using point cloud data

Course Syllabus

Module I: Introduction to Reverse Engineering                                                               2 (hrs)

Historical Background & Industrial Evolution,Reverse Engineering in Modern Industries, Motivation and Challenge, Analysis and Verification, Applications of Reverse Engineering & 3D scanning.

Practice :1       Generate a Model from a Product

 Module II: Processing the Point data & Creating Tessellated Mesh                                                 2 (hrs)

Stages in the Process, Introduction to Digitized shape editor, Importing the Point data, editing the cloud, Creating & Correcting the mesh, editing the mesh, creating tessellated mesh

Practice:2  Cloud Point Generation

Practice :3   Mesh Generation from Cloud Point data

Module III: Curve Creation & Processing                                                              2 (hrs)

Stages in the Process, creating and editing scans, creating curves, Additional tools, Introduction to quick surface reconstruction, creating scans by segmentation, processing curves

Practice : 4    Curve Generation

Module IV: Creating Surface                                                                                                 2 (hrs)

Stages in the Process, creating surface, using automatic processes, checking deviations

Practice :5   Surface Generation & Optimization

Module V : Additive Manufacturing                                                                              2 (hrs)

Additive Manufacturing Technology in product development-Materials for Additive Manufacturing Technology,Classification – Stereo lithography Apparatus (SLA)- Principle, process, advantages –Fused Deposition Modeling – Principle, process, advantages.Selective Laser Sintering – Principle, Process, advantages, Three Dimensional Printing – Principle, process, advantages - Laser Engineered Net Shaping (LENS)

Module VI : Delmia Additive Part Preparation Essentials

Preparing Infrastructure, Preparing Parts, Managing Rules, Generating the Slicing Path,

Practice : 6  Prepare a part for 3D Printing

Module VII: Master Project                                                                                                  2 (hrs)

Reverse Engineering of the Car Fender and 3D Printing

Text Books /Reference Books/Materials

1. Dassault Systemes Companion Learning Space : Catia Reverse Engineering Essentials

Session Plan

Session 1

Introduction to Reverse Engineering         https://youtu.be/Y0h6eGrwVKQ

3D Scanning                                                     https://youtu.be/Cy5RjsLwOAk

Practice Session on Reverse Engineering a component

Session 4

Importing Cloud of Points                                            https://youtu.be/Gxbp33QEc2k

Merging Clouds

Editing the Cloud

Practice Session on Generating Cloud Point Data using 3D Experience

Session 6

Practice Session on Generating cloud point data using CMM & 3D Scanning

Creating and Correcting Mesh

Editing the Mesh                                                             https://youtu.be/j-mvZcTCAnM

Session 8

Practice Session on Mesh Generation and Optimization

Creating and Editing Scans                                                      https://youtu.be/PQdCfoTM-jQ

Creating Curves

Additional tools - Offset, Rough offset

Quick Surface Re-construction                     https://youtu.be/CF304T9nECc

Creating Scans by Segmentation

Creating Sketches from Scans

Splitting curves

Adjusting Nodes

Cleaning & Splitting Contours

Creating Free form Surfaces

Creating Surface on Network                                               https://youtu.be/Pisy8G41K4w

Concept of Additive Manufacturing

Additive Manufacturing Technology in product development

Materials for Additive Manufacturing Technology

Stereo lithography Apparatus (SLA)- Principle, process, advantages

Fused Deposition Modeling – Principle, process, advantages

Selective Laser Sintering – Principle, Process, advantages

Three Dimensional Printing – Principle, process, advantages

Laser Engineered Net Shaping (LENS)

Introduction to Delmia Additive Part Preparation Essentials

Preparing the Infrastructure using 3D Experience

Practice : Infrastructure Setup for Additive Manufacturing

Preparing Parts for Additive Manufacturing

Practice : Parts for 3D Printing

Managing Rules

Practice : Creating  Rules in 3D Experience

Generating Slicing Path

Practice : Generate Slicing and Exporting Output

Master Project : Reverse Engineering a Car Fender

• Import input data
• Analyze and Correct the Mesh
• Create Curves
• Create Surfaces
• Check the Quality

Master Project : 3D Printing a Car Fender

• Prepare the Infrastructure
• Create Part
• Assign Rule
• Slicing & Output
• 3D Printing

Case Studies

Case Studies