2009年1月4日 星期日

11Welding processes

11Welding processes

Principle of oxyacetylene welding

oxyacetylene welding equpment

set up of oxyacetylene equipment

Oxyacetylene flames .

Welding techniques

Gas cutting

Weld testing and inspection

Arc welding machine

Polarity of welding machine

Types of weld and preparation

Terminology in welding

Electrodes

Weld defect , distortion

Weld symbol

MIG and TIG welding; characteristics of arc

shielding gas

advantage and disadvantages

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