These steps hold good for an AWS fillet gauge (which finds extensive usage in US), although a variety of gauges of fascinatingly wide-ranging utility today inhabit the market.

When we design fillet welds, the shear stress calculation is based on the throat size (a) of the fillet weld. we can convert leg size (z) to throat size (a) using the below simple equation: Measurement of the Leg Length: Where leg length (z) means the dimension from the root point to the weld toe. So, two leg lengths are there for fillet weld shown in the below figure as L1 & L2. These leg lengths are shown as usually as Z1 & Z2 in the code or standards. A concave fillet weld is a type of weld where the face profile dips inward and the throat size is smaller than leg length. This type of weld is good for cyclic loading, as it can withstand repeated stress without breaking.There are many different types of welding gauges used for inspection although Bridge Cam Gauge or also called Cambridge Gauge is a simple, versatile, accurate, easy to use, and handy welding gauge. Also it's an odd shape, I thought it would fold or disassemble to fit in a smaller slot in my tool box.

Visual aids (magnifying glass, torch) and gauges are used to support the detection of welding discontinuities and to measure the size of welds in fabrication companies. In AWS-CWI certifications measurements of a fillet weld are taught using the Standard Fillet weld gauge set for the most commonly used weld sizes, say 1/8 inch to 1 inch as shown in the below picture. Most specifications require convexity and concavity to be minimal, or to a specified minimum value. FAQs About Fillet Weld Gauges What Is A Fillet Weld Gauge? One thing I can usually say about the .303 rifle is it will have been shot, usually shot a lot and accuracy does suffer after a while. Now accuracy is not always a good reason to buy a rifle and I have rifles here that will not shoot a hand span group at a 100 yet they are keepers, equally I have worked with rifles capable of shooting tiny groups at extremely long distances that have left me cold. First find out the expected fillet size of the weld, by referring drawing or any other technical document.

Top takeaways

The AWS (Automatic Weld Size) gauge is considered a highly versatile tool. It is able to measure the size of your fillet weld, tolerance of convexity, tolerance of concavity, tolerance of underfill, and tolerance of reinforcement. If you want a great reliable gauge, the AWS is one of the best to get. Welders often strive to produce a convex fillet weld, as this type of weld face is typically seen as being more aesthetically pleasing than a concave weld face. Then study the article (especially the last paragraph of the "Gas erosion at throat" section) to understand that it's the relationship of the seated bullet to the leade that's critical for discouraging the projectile from yawing in the throat.

Cahz ah dung ina yuh dung ina yuh dung ina yuh throat gyal stop di noise mek mi cum ina yuh throat gyal The leg length refers to the distance from the root to the toe and should be measured in both directions using fillet gauges. The fillet weld measurements are carried out using two approaches: Adjustable fillet weld gauges are great because they are convenient and do not require you to carry around as many tools. How to Use a Fillet Weld Gauge Starting from the corner of the fillet, it is the maximum spread of the weld along the base and perpendicular of the right angled triangle that we just talked about above. See the illustration in the figure above. There are other kind of gages available in the market too, that do not involve any slider in the instrument, and only involve putting the instrument on the fillet, and looking up a direct reading for measuring the throat size of the fillet weld.To measure fillet weld leg length, rest the legs of the gauge on the surface of the plate, then rotate the tip, to the toe of the weld. The actual leg length is read from this scale. This measurement should read one half of one inch or approx 12.7 mm. If you notice that the weld does not extend all the way to the Vertical Toe a.k.a “V. Toe” then your weld is undersized vertically and must be fixed. SM74 Armourer's plug gauge .306" - Barrel wear, - remainder of barrel life. No 1 Mk 1. Note: SM74 is for use in rifles and Bren machinegun. This is a high quality product and performs as advertised, but not as easy to use or useful I first thought. It requires a lot of additional firearm knowledge to be a productive tool.