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Different Types of Welding Joints

Around the Welding Companies in India, these are some typical welding joints. Welding joints is an edge or point where two or more metal pieces or plastic pieces are joined together. The two or more work pieces (either metal or plastic) are joined with the help of a suitable welding process to form a strong joint. According to the American-Welding-Society, there are basically five types of welding joints and these are Butt, Corner, Lap, Tee and Edge-joint.
The 5 basic welding joints are:
  1. Butt joint
  2. Corner joint
  3. Lap joint
  4. Tee joint and
  5. Edge joint
1. Butt Joint:
The joint which is formed by placing the ends of two parts together is called butt joint. In butt joint the two parts are lie on the same plane or side by side. It is the simplest type of joint used to join metal or plastic parts together.
The different weld types in butt welding are
  1. Square Butt weld
  2. Bevel groove weld
  3. V-groove weld
  4. J-groove weld
  5. U-groove weld
  6. Flare-V-groove weld
  7. Flare-bevel-groove butt weld
2. Corner Joint
The joint formed by placing the corner of two parts at right angle is called corner joint ( see fig above). Two parts which is going to be weld with corner joint forms the shape of L.
The different weld types in corner joint are as follows
  1. Fillet weld
  2. Spot weld
  3. Square-groove weld or butt weld
  4. V-groove weld
  5. Bevel-groove weld
  6. U-groove weld
  7. J-groove weld
  8. Flare-V-groove weld
  9. Edge weld
  10. Corner-flange weld
3. T-Joint
The joint which is made by intersecting two parts at right angle (i.e at 90 degree) and one part lies at the centre of the other. It is called as T joint as the two part welded look like english letter ‘T’.
The types of welds in T joint are as follows
  1. Fillet weld
  2. Plug weld
  3. Slot weld
  4. Bevel-groove weld
  5. J-groove weld
  6. Flare-bevel groove
  7. Melt-through weld
4. Lap Joint
The lap joint is formed when the two parts are placed one over another and than welded ( see fig above). It may one sided or double sided. This types of welding joints are mostly used to join two pieces with different thickness.
The Various weld types in lap joint are
  1. Fillet weld
  2. Bevel-groove weld
  3. J-groove weld
  4. Plug weld
  5. Slot weld
  6. Spot weld
  7. Flare-bevel-groove weld
5. Edge Joint
The joint formed by welding the edges of two parts together are called edge joint. This joint is used where the edges of two sheets are adjacent and are approximately parallel planes at the point of welding. In this joint the weld does not penetrates completely the thickness of joint, so it can not be used in stress and pressure application.
The various weld types in this welding joint are:
  1. Square-groove weld or butt weld
  2. Bevel-groove weld
  3. V-groove weld
  4. J-groove weld
  5. U-groove weld
  6. Edge-flange weld
  7. Corner-flange weld
In this article we have learnt about different types of welding joints used to join metal or plastic parts together. If you find this information valuable than don’t forget to like and share.
These are some welding joints pattern followed by welders around the globe and most of the Welding Companies in India.
Ref:theweldingmaster.com/types-welding-joints/
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