Deep Throat Thickness Gauge

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Below are the main uses of Bridge Cam Gauge, How to Use it for different measurements are listed with reference to pictures. And finally, to measure undercuts or pits, place the legs of the gauge squarely on the surface of the plate and lower the tip into the undercut or pit. The amount of undercut is read from this scale. This pit reads 1/16 of one inch or approx 1.6 mm. Watch this video of the Bridge Cam Gauge

Fillet welds and predominately used weld joint types in construction, structural and general fabrication although they are not used in critical weld joint locations. Get the best-discounted Fillet Gauges online If the weld is not within specification, it will not meet the strength requirements, which could lead to a failure in the weld.

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Welding gauge calibration is an important part of welding Quality Control & Assurance. It ensures that the welds meet the minimum weld size requirements & meet the required specifications. 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: Once the gauge is positioned thus, move the slider in the gauge such that it touches the vertical base metal. The extent of the movement can be seen on the scale that is imprinted on the gauge. This reading is the leg length on the horizontal part.

Other features which can be found in certain snap gauge series is IP54 protection (prevents ingress of dust which causes harm and protects against liquids splashing from any angle), data output capability and manufacturer’s inspection certificates traceable to DKD. In dial models with smaller scales, the dial may rotate the full 360° multiple times if the measured depth is large. The user will need to account for this by counting the number of full rotations the dial completes during the operation and add these values onto the total depth value. The advantage to using dial models with smaller scales is that these will provide a more accurate measurement (for instance, a dial gauge with a 1mm scale has a 0.001mm graduation whereas a gauge with a 10mm scale has a 0.01mm graduation).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.

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. 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. Primarily these comments are on erosion gauges in general, not this individual product. First you have to keep detailed records for a long time and you have to be firing a lot of rounds. You have to develop a technique of reading the gauge that is exactly the same each time. The depth reading you record can vary with the position of your head. Additionally the gauge doesn't really give you a failure point but rather a relative change over time. So you have to record your first reading then compare subsequent readings to get the relative change in wear. Since there really isn't any "failure" point, you just see slowly deteriorating accuracy. So unless you compare accuracy against throat erosion, then you don't really know what an individual reading means. The following steps hold good for the gauges shown in the pictures. There are of course other kinds of gauges available as well in the market.

Measuring Tools - Calipers

Welders & Welding Inspectors use welding gauges to measure the weld size and to make sure that they are within the acceptance limit. Next, you should select the standard fillet gauge side to be used for the fillet weld size measurements. A profitable service that every gunsmith should offer to shotgun shooters. Re-working an improper chamber with the Walker Gauges and proper chamber and Forcing Cone Reamers can reduce recoil, shot deformation, and improve patterns. The system was developed and proven by the late Ralph Walker, Selma, Alabama, gunsmith, writer and author, who had used it in his shop. A mitre fillet weld is a weld with a triangular cross-section. It is strong but needs weld flushing to produce mitre weld. For special applications, it is used to join two pipes at an angle.

More precisely, this gage is used to ascertain whether the measurements of a fillet weld meet specified values or not (rather than making actual measurements of these values). How Do You Use A Fillet Weld Gauge? Before measuring the welds using the fillet gauge- perform the visual inspection and decide the type of fillet weld for: In fact I believe all new FAC holders should get out and shoot one at some point, just because. I have a modest collection of 303 Sporting and military rifles, including Lee Speed and postwar No1Mk3 commercial examples here in the armoury along with later ones such as the 1920 Lithgow below. To measure weld reinforcement, lower the legs of the gauge to the surface of the plate. Then, using the tip, place it at the highest point on the weld. The Weld reinforcement dimension is again read from this scale. This weld reinforcement measures 1/8 of one inch or approx 3.1 mm SKU: F30.0100 Category: Welding Inspection Description Product Information The Bridge Cam Gauge by GAL GAGE Company is one of our most versatile gauges available. With it, you can perform several different types of measurements of welds in both inches or millimetres.In a similar fashion, the gauge can be used for measuring leg length of a fillet in any position. Only one thing needs to be remembered, the gauge must be suitable for the fillet size that needs to be inspected. Either way, most fillet weld gauges require you to lay the gauge on your welding contraption. You will then look at how the weld lays across the gauge to determine the measurements. Do Weld Gauges Need To Be Calibrated? Similar to the measure of convexity, first find out the expected fillet size of the weld, by referring drawing or any other technical document. 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. How you use a fillet weld gauge largely depends on what you’re measuring. Above in the article, we saw how to use a fillet weld gauge for measuring leg length, throat, concavity, and convexity of a fillet weld. Often, rather than making accurate measurements of these dimensions, a gauge is only used to inspect whether weld meets the specified values or not. Like a go/no-go gauge.