![]() Typical applications include pressure vessel, gas cylinder, boiler, etc. Welding has a vast area of application starting from joining thin plates in automobile industries to pipe joining.Īrea of application of riveting is narrow. Riveting is suitable only for butt joining. Lap joining, butt joining, T-joining, cylindrical joining, etc. Riveting is suitable for joining metals only. Welding can be used for joining of metals, ceramics, plastics and composites also. Riveting is one slow process as drilling holes and hammering rivets require significant amount of time. ![]() It does not offer sliding surface as protruding parts are inherent to riveting.ĭesigning for weld joint is simple and also time and cost efficient.ĭesigning for rivet joint requires lot of calculations and thus time consuming. Reinforcement can be removed by grinding. It offers sliding surfaces as no protruding part exists on surface. Welding offers apparently magnificent joint.ĭue to presence of rivet heads and hammered portion opposite to head, appearance hampered. Riveted structures are heavier due to usage of additional straps.Ī defect-free weld joint does not change dimension of structure.ĭimensional change is inherent to riveting due to application of additional plates and rivets. ![]() However, so called filler metal is not required. Rivet joint inherently requires various accessories like rivets, straps, etc. However, filler metal can be used when root gap is more. Weld joint does not require any additional strap, rivet, etc. Rivet joints perform excellent under vibration. Weld joints are susceptible under vibration. Riveting does not alter metallurgical properties of the component. Welding, especially fusion welding processes, changes metallurgical properties of the material at the joint and surrounding it. Load carrying capacity of weld joint is much higher and also joints are reliable.įor same component joined by riveting, load carrying capacity will be lower due to lower cross-sectional area. Riveted structures have lower strength compared to parent structures due to reduced cross-sectional area. Welded structures have strength equal to that of parent components. Rivet joint requires a series of holes on the component prior to riveting for the passage of rivets. However, edge preparation can be carried out prior to welding. Weld joint does not require holes on the components to be joined. Table: Differences between weld joint (welding) and rivet joint (riveting) Weld Joint Various differences between weld joint and rivet joint is provided below in table format. However, performance of weld joint decreases when subjected to vibrations but rivet joints exhibit excellent performance under same situation. While welding requires edge preparation when plate thickness is more, riveting always requires pre-drilled holes on the component, which reduces load bearing capability of joined structure. On the other hand, riveting is also one permanent joining process where two components can be joined by means of long cylindrical rivets inserted through holes, which are drilled on the components prior to riveting. So here intended joining is obtained by the formation of weld bead or coalescence between two components. By definition, welding is one type of permanent joining process by which two or more components can be joined together by coalescence formation with or without the application of heat, pressure and filler material. A temporary joint allows disassembly of joined parts without breaking them while, a permanent joint does not allow easy dismantling of joined components without breaking them.īoth weld joint and rivet joint are considered as permanent joints but their joining techniques, features of joint as well as application areas are different. Broadly such processes can be classified as temporary and permanent joining processes. To serve this purpose, a number of joining processes has evolved throughout the ages that can join structural members in different ways. Basic purpose of joining is to assemble two or more solid components together in such a way that it can form a single unit and can subsequently perform intended functionalities. Joining is an integral part of manufacturing as it facilitates easy, efficient and economic production of intricate shaped parts.
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