The Edge Weld Symbols - Interpretation of Metal Fab Drawings is a guide for makers.
Most of the time, edge welds are associated with sheet metal orgauge material.Similar to that of electricians and wire, this gauge is used to call out sheet metal.This chart can range from the largest gauge of carbon steel at #7 which is a decimal of.1793” all the way to the smallest one at #28, using a fraction for how small these numbers are.It is important to know that there are charts for different types of steel.The weld size will be shown to the left of the symbol.The weld size is a measurement of the depth of fusion.This does not mean that the dimensions are not the same.It will be up to the welder to decide if there is a size specified.On edge joints, single sided edge welds are used.It will only be used with a flat edge joint if there is a double edge weld.The symbol can be associated with a length and it will be shown to the right of the symbol.Full length of the part will be shown if the dimensions are not shown to the right.There are indicators shown on a print of what length is required.There is an edge symbol with an 8” length as well as a detail view of a part to show where two 2” welds will be located.There was a section on length and pitch in chapter 3.An edge weld can be welded in this manner as well.The length will be shown to the right, followed by a hyphen and then the pitch.This can include a chain intermittent edge weld.This will be more common with thicker material.There is a possibility of a staggered intermittent edge weld.The symbols will be offset because this is the same as a chain intermittent edge weld.The location of the welds will be called out on the blueprints.This may come from a drawing or a note.More than 2 members will be included in some edge welds.There will be one arrow that points at the joint, but not all of the members.It will be more common with sheet metal.There is a chance that the edge joint could melt through.This is discussed more in the supplementary symbols.The symbol shows that the weld is supposed to burn through the back side of the material.This is common with sheet metal when the worry of burning a hole is a concern.It can be left as simple as the symbol or it can include a size.The symbol shows how much penetration is needed past the weld joint.It is referred to as melt-through.Flare v grooves are one of the types of welds that can be seen with an edge weld.The opposite side of the edge is exactly that type of configuration.It may be called for on materials that cannot be melted.
Most of the time, edge welds are associated with sheet metal orgauge material.Similar to that of electricians and wire, this gauge is used to call out sheet metal.This chart can range from the largest gauge of carbon steel at #7 which is a decimal of.1793” all the way to the smallest one at #28, using a fraction for how small these numbers are.It is important to know that there are charts for different types of steel.
The weld size will be shown to the left of the symbol.The weld size is a measurement of the depth of fusion.This does not mean that the dimensions are not the same.It will be up to the welder to decide if there is a size specified.
On edge joints, single sided edge welds are used.It will only be used with a flat edge joint if there is a double edge weld.This is displayed below.
A length can be shown to the right of the symbol for edge welds.Full length of the part will be shown if the dimensions are not shown to the right.There are indicators shown on a print of what length is required.There is an edge symbol with an 8” length as well as a detail view of a part to show where two 2” welds will be located.
There was a section on length and pitch in chapter 3.An edge weld can be welded in this manner as well.The length will be shown to the right, followed by a hyphen and then the pitch.This can include a chain intermittent edge weld.This will be more common with thicker material.
There is a possibility of a staggered intermittent edge weld.The symbols will be offset because this is the same as a chain intermittent edge weld.
The location of the welds will be called out on the blueprints.This may come from a drawing or a note.
More than 2 members will be included in some edge welds.There will be one arrow that points at the joint, but not all of the members.It will be more common with sheet metal.
There is a chance that the edge joint could melt through.This is discussed more in the supplementary symbols.The symbol shows that the weld is supposed to burn through the back side of the material.This is common with sheet metal when the worry of burning a hole is a concern.
It can be left as simple as the symbol or it can include a size.The symbol shows how much penetration is needed past the weld joint.It is referred to as melt-through.
Flare v grooves are one of the types of welds that can be seen with an edge weld.The opposite side of the edge is exactly that type of configuration.It may be called for on materials that cannot be melted.