Advantages and Disadvantages of Welded Joints over Riveted Joints
Following are the advantages and disadvantages of welded joints over riveted joints.
- The welded structures are usually lighter than riveted structures. This is due to the reason, that in welding, gussets or other connecting components are not used.
- The welded joints provide maximum efficiency which is not possible in case of riveted joints.
- Alterations and additions can be easily made in the existing structures.
- As the welded structure is smooth in appearance, therefore it looks pleasing.
- In welded connections, the tension members are not weakened as in the case of riveted joints.
- A welded joint has a great strength. Often a welded joint has the strength of the parent metal itself.
- Sometimes, the members are of such a shape that they afford difficulty for riveting. But they can be easily welded.
- The welding provides very rigid joints. This is in line with the modern trend of providing rigid frames.
- It is possible to weld any part of a structure at any point. But riveting requires enough clearance.
- The process of welding takes less time than the riveting.
- Since there is an uneven heating and cooling during fabrication, therefore the members may get distorted or additional stresses may develop.
- It requires a highly skilled labour and supervision.
- Since no provision is kept for expansion and contraction in the frame, therefore there is a possibility of cracks developing in it.
- The inspection of welding work is more difficult than riveting work.