How far apart should plug welds be?

The minimum center to center spacing for plug welds shall be 4 times the diameter of the hole. The minimum center to center of slot welds (traverse direction (this way II) shall be 4 times the width of the slot. Longitudinal direction (–) shall be 2 times the length of the slot.

What is plug weld definition?

A weld made in a circular hole in one member of a joint fusing that member to another member. A fillet-welded hole is not to be construed as conforming to this definition.

Are plug welds strong?

Plug welding is an alternative to spot welding used by vehicle manufacturers where there is insufficient access for a spot welder. Plug welds when done properly tend to be stronger than the original spot welds.

Where is plug weld used?

Plug welding is primarily used to refill damaged holes on aerospace components such as fan and exit cases. Our process allows aerospace companies to salvage these components by fixing each individual hole, instead of scrapping the entire assembly.

How do you measure a plug weld?

Plug Weld Dimensions Dimensions of plug welds must be shown on the same side of the reference line as the weld symbol. The size of a weld must be shown to the left of the weld symbol. The included angle of countersink of plug welds must be the user’s standard unless otherwise indicated.

Can a MIG welder be used as a spot welder?

A convential spot welder requires contact to both sides of the panels. This kit is compatible with all MIG welders that use a Tweco style torch, not just Eastwood Welders. To set your MIG welder up with the kit all you have to do is unscrew the nozzle and screw on the spot weld nozzle, its that simple.

Are plug welds structural?

Plug welded joints are very popular in steel structures. Geometrical parameters of this process are the thickness of the welded plate and the diameter of the electrodes. The connection between the components is achieved through the implementation of many single points of welding.

What is the difference between a plug weld and slot weld?

Use the same procedure to create a plug weld or a slot weld. The only difference is that a plug weld’s shape is defined by a diameter, and a slot weld’s shape is defined by a diameter and a length.

How do you show a plug welder?

Dimensions of plug welds must be shown on the same side of the reference line as the weld symbol. The size of a weld must be shown to the left of the weld symbol. The included angle of countersink of plug welds must be the user’s standard unless otherwise indicated.

When do you use a plug Weld in welding?

A plug weld is used to lock two metal pieces together. It is mostly used if we want to join metal with different thicknesses. These types of weld are used when we have to weld inside a pipe. The shape of the plug weld is circular. 5. Slot Weld Basically, a slot weld join one surface of a metal to the other through an elongated cavity or hole.

How to remove existing welds and rewelding?

If you cut no nearer than the fillet, you should have no worries about thermal effects to the base metal. Grind off the rest, and perform magnetic particle testing on the area. For the other member you have cut, if it can be reused (i.e., it is not now too short), grind back until the end is square. Mag particle and you are good to reuse it.

What does the plug Weld symbol stand for?

Plug welds are a round weld that is made inside of an existing hole most commonly in one piece of metal, welding that piece to another member. The plug weld symbol is a rectangle with a diameter symbol placed to the left of the symbol as well as the number associated with that diameter.

What happens if plug weld does not fill hole?

If the plug weld should fill the hole provided then the symbol will be left empty. This means there will be no dimension inside of the rectangle. If the hole should be filled only so much then this will be placed inside of the rectangle.