Chapter 1 Introduction to CAD in Mechanical Engineering
1.1 Development History of CAD Technology
1.1.1 Wireframe models
1.1.2 Surface models
1.1.3 Solid models
1.1.4 Parametric solid model
1.1.5 Variational modeling technology
1.1.6 Direct modeling and synchronous modeling techniques
1.2 Application of CAD Technology in Mechanical Design
1.2. l Influence of 3D CAD technology on mechanical design
1.2.2 Basic functions of CAD system
1.2.3 CAD Data exchange standard
1.3 Questions and Exercises
Chapter 2 Basics of NX
2.1 The User Interface of NX
2.1.1 Start and exit NX 12.0
2.1.2 User interface
2.1.3 Customizing the user interface
2.2 Basic Operations of NX
2.2.1 File operations
2.2.2 Layer operations
2.2.3 Object operations
2.2.4 Mouse operation
2.2.5 View operations
2.2.6 Working coordinate system
2.3 Exercises-basic Operations of NX
2.4 Questions and Exercises
Chapter 3 Sketch
3.1 Sketch Overview
3.1.1 The Basic Concept of Sketch
3.1.2 Sketch Preference
3.1.3 Create Sketch Plane
3.2 Sketching
3.2.1 Sketch Point
3.2.2 Profile
3.2.3 Rectangle
3.2.4 Arc
3.2.5 Circle
3.2.6 Studio Spline
3.2.7 Derived Lines
3.2.8 Quick Trim
3.2.9 Quick Extend
3.2.10 Fillet
3.2.11 Chamfer
3.3 Constraints
3.3.1 Basic Concept of Constraints
3.3.2 Geometric Constraints
3.3.3 Sketch Dimensions
3.3.4 Show/Remove Constraints
3.3.5 Convert To/From Reference