AWS A4.5:2020 pdf download.Standard Methods for Classification Testing of Positional Capacity and Root Penetration of Welding Consumables in a Fillet Weld
5. Preparation of the Test Piece
5.1 Before assembling, the web piece of the assembly shall have one edge of the web flat and square throughout its length so that, when the web is set on the flange, which shall be straight and smooth, there will be intimate contact along the entire length of the joint. The web and flange shall be assembled as shown in Figure 1. Both ends of the joint shall be secured by tack welds to maintain intimate contact along the length of the joint and to maintain the 90° angle between the web and flange. The web and flange dimensions shall be in accordance with those given in the consumable classifi-cation standard.
5.2 The position of welding and conditions of welding shall be as prescribed in the consumable classification standard for the classification and size of consumable under test, and as defined in AWS A3.0M/A3.0. A single pass fillet weld shall be deposited on one side of the joint for approximately the full length of the test piece. The minimum temperature of the assembly shall be 15°C [60°F]. For covered electrodes, at least one electrode (and as many more as the weld per-mits) shall be continuously consumed to within the permissible stub length of 50 mm [2 in]. For electrodes longer than 450 mm [18 in], designed specifically for use in gravity welding, the fillet weld may be made either manually or with a device designed specifically for gravity welding. For wire electrodes, tubular cored electrodes, and wires, welding shall be continuous from start to finish of the fillet weld.
5.3 The fllt weld shall be deposited using travel speeds compatible with the consumable classification and tested to provide the fllt weld size required by the consumable classification standard.
5.4 If welding of the second side of the test piece is required by the consumable classification standard, the test piece shall be cooled to room temperature by any convenient means, before starting to weld the second side of the joint. If water is used as the coolant, care shall be taken that all water has been thoroughly removed from the joint before begin-ning welding on the second side.
6.2 The completed fillet weld test piece shall be measured per the classification standard. Two methods of measurement offillet weld size, leg length, and convexity are prescribed in 6.3 and 6.4. If the classification standard has requirements for fillet weld leg length and convexity in increments less than the calibrated accuracy of the gauge, the method of 6.3 must be used.AWS A4.5 pdf download.