May 2013
Beginner
638 pages
18h 28m
English
Content preview from Basic Mechanical Engineering
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20
Casting and Welding
Chapter Objectives
In this chapter, you will learn about:
- Introduction to casting processes
- Pattern and mould making
- Properties of moulding sand
- Sand testing
- Special casting methods
- Casting defects and remedies
- Introduction to welding and allied processes
- Oxyacetylene welding and equipments
- Unconventional welding methods
- Welding defects
20.1 INTRODUCTION TO CASTING PROCESSES
Casting is an ancient manufacturing process. It had been used during 4,000–5,300 B.C. for manufacturing of copper arrowheads. In the field of casting, a number of modern technologies have been developed such as die casting, permanent mould casting, vacuum casting, continuous casting, electromagnetic casting, etc., but sand casting is one of the ...
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