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ADVANTAGES AND DISADVANTAGES OF WELDED JOINTS
The following are the advantages of welded joints.
• Due to the absence of gusset plates and other connecters, the welds are usually lighter.
• Welding process is quicker as it requires no drilling of holes.
• Welding is more adaptable than other types of connections and can even be used in circular
• 100% efficiency can be achieved in welding where as the connection such as bolts can have a maximum efficiency of 70 - 80%.
Noise produced during the welding process is relatively less.
• Welds usually have good aesthetic appearance.
• Welded joints are air tight and water tight and can be used for water tanks and gas tanks.
• Welded joints are rigid.
• Mismatch of holes will never happen in welded connection.
• Alternation of joints can easily be made in the case of welded connecetions.
However the welded connection is having the following disadvantages.
• Due to the uneven heating and cooling, members are likely to distort in the process of welding.
• Possibility of brittle fracture is more in the case of welded connections.
• Welded connections are more prone to failure due to fatigue stresses.
• The inspection of welded joints is difficult and expensive. It can only be done by employing
• Highly skilled persons are required for welding.
• Proper welding in field conditions is difficult.
• Welded joints are over rigid.
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