In this process, the metallic parts to be joined do not undergo any change in their physical structure or they change the atomic structure. However, force is required for riveting. Riveting is used widely in the automobile and aerospace industry and in much other application where we require permanent or semipermanent bonding and where bolting and welding is not an option. What is welding? Welding is a metal joining process the two-part that are to be welded are fused together by application of heat and pressure.
Permanent fusion happens between joining metals. Difference between welding and riveting:. In welding, no hole is required to drill on the parent components in order to join them y welding.
While in riveting requires a number of through-holes on parent components for passage of rivets. The time required for welding is also less. While in riveting drilling the holes, inserting the rivets, heating the protruding end, ad the upsetting them all these steps take substantial time.
The load-carrying capacity of the component before and after welding remains the same. While in the riveting cross-sectional area reduces due to holes. Thus load carrying capacity also degrades. The strength of the welded joint is very high, the strength of the riveted joint is comparatively low. Welding properties of the base plate surrounding the weld bead are affected during welding, Riveting metallurgical properties of the base plate material remain unaffected in riveting.
In the welding process, the joint is prone to fail under vibrations, Rivet joint performs well under vibrations. Weld joint does not require any additional strap, rivet, and some other materials, etc. However, filler metal can be used when the root gap is more, while in rivet joint inherently require various accessories like rivets, straps, and some other materials, etc. Skip to content. Table: Differences between weld joint welding and rivet joint riveting Weld Joint Rivet Joint Weld joint does not require holes on the components to be joined.
However, edge preparation can be carried out prior to welding. Rivet joint requires a series of holes on the component prior to riveting for the passage of rivets. Strength of weld joint is very high. Welded structures have strength equal to that of parent components. Riveted structures have lower strength compared to parent structures due to reduced cross-sectional area. Load carrying capacity of weld joint is much higher and also joints are reliable.
For same component joined by riveting, load carrying capacity will be lower due to lower cross-sectional area. Welding, especially fusion welding processes, changes metallurgical properties of the material at the joint and surrounding it. Riveting does not alter metallurgical properties of the component.
Weld joints are susceptible under vibration. Rivet joints perform excellent under vibration. Weld joint does not require any additional strap, rivet, etc. However, filler metal can be used when root gap is more. Rivet joint inherently requires various accessories like rivets, straps, etc. However, so called filler metal is not required. Welded structures are lighter in weight. Riveted structures are heavier due to usage of additional straps.
A defect-free weld joint does not change dimension of structure. Dimensional change is inherent to riveting due to application of additional plates and rivets. Welding offers apparently magnificent joint. Due to presence of rivet heads and hammered portion opposite to head, appearance hampered. It offers sliding surfaces as no protruding part exists on surface.
Reinforcement can be removed by grinding. It does not offer sliding surface as protruding parts are inherent to riveting. Designing for weld joint is simple and also time and cost efficient. Designing for rivet joint requires lot of calculations and thus time consuming. Welding process is also faster. Riveting is one slow process as drilling holes and hammering rivets require significant amount of time. Welding can be used for joining of metals, ceramics, plastics and composites also.
Riveting is suitable for joining metals only. Lap joining, butt joining, T-joining, cylindrical joining, etc. Riveting is suitable only for butt joining. Riveted joints are not completely sealed, unlike welded joints. Therefore, riveted joints are not leakproof. Rivet joints are also semi-permanent, in that they can be cut and removed, whereas welded joints are considered to be a permanent form of joining.
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