What is a flare bevel weld?
A flare bevel weld is one that connects a radius to a planar surface. For example, the weld between a flat bar and a piece of pipe along its side. In this article, you will learn what a flare bevel weld is, some examples of its use, and the flare bevel weld vs other types of welds.
How do you size a flare bevel weld?
Flare Bevel Weld Size with Design Example The effective Weld Size of a Flare Bevel Weld Size is equal to 0.4S minimum, where, ‘S’ is the radius of the round member. In the case of a Flare Bevel V-Groove, the effective Flare Weld Size is equal to 0.6S.
How do you determine the thickness of your throat?
Effective throat thickness:
- It is the shortest distance from the root of the fillet weld to the hypotenuses of the inscribed right-angled triangle within the weld.
- Effective throat thickness = K × Size of fillet weld = KS ( K = constant depends on the angle between the joining (fusion)
What is groove weld size?
Often associated with a groove weld is going to be the weld size. This weld size is the depth of penetration you will be getting when applying the weld. When a weld is applied we should be melting into the root of the part so our weld should be larger in dimension than the preparation of the joint.
How do you calculate welding thickness?
Determine the base material thickness, t b, as the shell thickness of the terminated part. Determine the weld area, A w, per unit length: Single-Sided (SS) welds: A w = t w, where t w is the weld throat. Double-Sided (DS) welds: A w = 2 × t.
What is weld throat thickness?
The throat of the weld is the distance from the center of the face to the root of the weld. Typically the depth of the throat should be at least as thick as the thickness of metal you are welding.
What is the difference between bevel and groove?
As shown in Figure 5, the groove angle A, is the angle between the two workpieces. A bevel angle exists when only one of the workpieces is angled, as in a single bevel weld.
How is weld thickness calculated?
What degree is a weld bevel?
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface. A standard pipe bevel angle for welding is 37.5 degrees.
What is the minimum weld thickness?
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|Base metal thickness (T)a||Minimum size of fillet weldb|
|1/4 < T < 1/2||6 < T < 12||3/16|
|1/2 < T < 3/4||12 < T < 20||1/4|
|¾ < T||20 < T||5/16|
How do you assume the size of a weld?
For tensile, compressive, or shear loading, the given load is divided by the length of the weld to derive the pound-force per linear inch of weld. Using this force per unit length, the proper leg size of fillet weld may be found.
What is the minimum size of effective throat thickness?
The effective throat thickness should not be less than 3mm and it should not exceed 0.7t or 1t, where t is thickness of thinner plate of elements being welded.
How to calculate effective weld size for flare bevels?
The calculation isn’t difficult, the effective weld size if the flare bevel groove is filled flush is 5/16 inch based on Table 2.1. Subtract the 1/16 inch underfill and the the resulting weld size is 1/4 inch as provided by clause 188.8.131.52.
Do I need A PQR for flare bevel groove welding?
Stand firm and if it is required, it should ship right or not at all, IMO. If used, the prequalified joint details for a flare bevel groove weld size is based on weld being flush, as indicated by note “l”. A PQR woud be required if the joint is to be underfilled, unless the EOR opts otherwise.
What are the size rules for flare bevels and flare v-grooves?
Ctacker, the point of the size rules for flare bevels and flare V-grooves is that they can not be complete joint penetration groove welds. As the round (s) approach the point of tangency, the groove angle approaches zero.
What is the maximum weld size for flare V groove?
So, if the maximum weld size for the flare V-groove is 5/16 inch based on Table 2.1 and if the weld is specified as 1/4 inch, the inspector should be able to lay a straight edge across the round surfaces and measure a 1/16 inch (or less) space between the underside of the straight edge and the face of the weld.