how to calculate reinforcement pad dimensions

The total area of the two red regions added together can be calculated using the formula 2t(tan b x t)/2 or t(tan b x t). The dimension 'c' is given by (tan b x t) the area of a single red triangle is therefore t(tan b x t)/2. When using this formula do not forget that welders seldom deposit precisely the size of weld called up on the drawing or in the welding procedure and that there may be some excess weld metal on the face of the weld. Fig.1 illustrates how simple this calculation is for an equal leg length fillet weld the area of such a weld is half the square of the leg length, Z. With a fillet weld or a 45° single bevel joint this is relatively simple but the calculations become lengthier as the weld preparation becomes more complex. The first step then is to calculate the cross sectional area of the joint. Click here to see our latest technical engineering podcasts on YouTube.ĭetermining the volume of a weld requires some knowledge of basic geometrical calculations to determine the area of the weld and multiply this figure by its length. Costing will be dealt with in future Job Knowledge articles. Both of these are required in order to calculate the cost of making the weld. With this information, and knowing the deposition rate of the process, it is possible to determine the arc time (the length of time that an arc is burning and depositing weld metal) and the amount of welding consumables required to fill the joint.

National Structural Integrity Research CentreĬalculating the volume of a weld is one of the first steps to be taken when estimating the cost of making a weld.Structural Integrity Research Foundation.

How to calculate reinforcement pad dimensions