## PL8602 - CAD/CAM/CAE FOR PLASTICS ENGINEERING (Syllabus) 2017-regulation Anna University

PL8602

CAD/CAM/CAE FOR PLASTICS ENGINEERING

LPTC

3003

OBJECTIVES: To enable the students
• To provide an overview of how computers are being used in Design of Plastic Component, Manufacturing of Tool and Analysis of mould flow.
• To develop the knowledge of computer aided manufacturing.

UNIT I

COMPUTER GRAPHICS

9

Fundamentals: Output primitives (Points, lines, curves, etc.,) - 2-D and 3D Transformations- Homogeneous Coordinates- Windowing, Viewing and clipping transformation- Introduction to curves- Analytical Curves- Circle and conics- Synthetic Curves - Bezier and B-spline curves. Graphics Standards: Standards for computer graphics- Graphical Kernel System (GKS) - standards for exchange images- Open Graphics Library (OpenGL) - Data exchange standards - IGES, STEP, CALS etc. - Communication standards

UNIT II

SURFACE MODELING AND SOLID MODELING

9

Surface modeling: Bezier and B-Spline surface- Bi- linear surface- Boundary Representation- Sweep representation. Solid modeling: Primitives- Boolean set operations- Boundary Representation - Constructive Solid Geometry, User interface for solid modeling, Introduction to Parametric and Variation modeling, Creation of prismatic and lofted parts based on software packages. Assembly Modeling: Assembly of parts, Tolerance analysis, Mass property calculations, and Interference Checking

UNIT III

COMPUTER AIDED MANUFACTURING

8

Integrating CAD with CAM - NC - CNC - DNC- NC programming – Basics, Languages, G Codes & M Codes and APT – Part programming for CNC Turning Center and CNC Machining Center- CAM software packages –Tool Path generation and verification.

UNIT IV

CAE – STRUCTURAL ANALYSIS

10

FEA: Introduction to Finite Element Analysis - Types of analysis - Procedure for finite element analysis – Mesh generation - Finite Element Analysis packages and its application. Structural Analysis: Types - Analysis of One Dimensional Bar elements- Derivation of Shape function and Stiffness matrix and force vector – Assembly of matrix – Field problems.

UNIT V

CAE – FLOW ANALYSIS

9

Mold Flow Analysis: Introduction - Product design and Mold flow - Sequence of analysis- Mold flow concepts- Meshes used in Mold flow analysis- Types, Requirement- Geometry Creation- Importing Geometry- 3D Modelling using MF/view- Mold flow design procedure- Analysis steps framework- Evaluate an Initial design- optimized the design- Types of Analysis: Flow analysis- Cooling analysis - Shrink/Warp analysis - Stress analysis- Case studies – Interpretation of results - Part defects

TOTAL : 45 PERIODS

OUTCOMES:
• Upon completion of this course, the students will acquire the knowledge of computer aided design and manufacturing for moulds for plastics processing.
• Knowledge on various CNC machining processes used in Mould manufacturing.
• They also learn about various types of analysis involved in Mould flow.

TEXT BOOK:
1. Ibrahim Zeid “Mastering CAD CAM” Tata McGraw-Hill Publishing Co., 2007

REFERENCES:
1. Chris McMahon and Jimmie Browne “CAD/CAM Principles", "Practice and Manufacturing management “ Second Edition, Pearson Education.
2. P.RadhaKrishnan, S.Subramanyan, V.Raju, “CAD/CAM/CIM”, Third Edition, New Age International Publisher
3. Donald Hearn and M. Pauline Baker “Computer Graphics”’. Prentice Hall, Inc, 1992.
4. Rao P N, Tiwari N K, Kundra T, “Computer Aided Manufacturing” Tata McGraw Hill 2014.
5. Seshu.P, “Text book of Finite Element Analysis” PHI learning Private limited, 2008.
6. Jay Shoemaker “Moldflow Design Guide: A Resource for Plastics Engineers”, Volume 10, Hanser, 2006