Chapter 3 Casting
3．1 Sand Casting
3．2 Modeling Methods
3．3 Gating System， Riser and Cold Iron
3．4 Mould Assembly
3．5 Melting and Equipment of Alloys
3．6 Pouring， Knockout and Cleaning
3．7 Heat Treatment of Castings
3．8 Analysis of Defects in Castings
3．9 Typical Examples of Sand Casting
3．10 Special Casting Methods
Chapter 4 Forging
4．1 Characteristics of Plastic Processing
4．2 Blank Heating and Cooling
4．3 Forging Equipment
4．4 Main Processes of Free Forging
4．5 Die Forging
4．6 Sheet Stamping
4．7 Introduction to Forging New Technology
Chapter 5 Welding
5．1 Arc Welding
5．2 Other Common Arc Welding Methods
5．3 Gas Welding and Gas Cutting
5．4 Pressure Welding
5．5 Brazing
5．6 Welding Quality Analysis
5．7 Welding Structure Processability
Chapter 6 Fitting
6．1 Overview and Process
6．2 Scribing Line
6．3 Sawing
6．4 Filing
6．5 Engraving
6．6 Drilling
6．7 Dilating， Boring， Reaming
6．8 Tapping and Threading
6．9 Assembly
