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  Here we are going to see about two types of weld Joints Groove Welds Fillet Welds Dimensions 1.1.  Groove Welds: In the following figures, the perspective drawings of types of weld joints are shown at the left, looking at each joint from the arrow side. The illustrations cover only a small number of all possible symbols.  The symbols shown here are those of the most common manufacturing application. 1.2 Fillet Welds Dimensions: Dimensions of fillet welds must be shown on the same side of the reference line as the weld symbol. When fillet welds are indicated on both sides of a joint and no general note governing the dimensions of the welds appears on the drawing. OBS.:  If the dimensions of one or both welds differ from the dimensions given in the general note, both welds must be dimensioned. The size the fillet weld with unequal legs must be shown in parentheses to left of the weld symbol. 2. The length of a fillet weld, when indicated on the welding symbol, must b...

  Equipment’s required for Welding Institute set up. Welding is a process of joining metals or nonmetals such as plastic. There are different types of welding, and few of them are as below. SMAW- Shielded Metal Arc Welding (commonly called as ARC welding in the locality ) GMAW – Gas Metal Arc Welding – MIG /MAG GTAW – Gas Tungsten Arc Welding / TIG – Tungsten Inert Gas Welding FCAW – Flux Cored Arc Welding ERW – Electric Resistance Welding FSW – Friction Stir Welding SAW – Submerged Arc Welding LW – Laser Welding EBW- Electron Beam Welding GW- Gas Welding Ultrasonic welding And much more. A welding process can be done as Manual or Semi- Automated or Automatic / Robotic. To start up a  basic welding Institute it essential to have at least the basic three welding machines – SMAW , GTAW and GMAW welding machines And machines of Gas Welding , EBW and Laser Welding machines will be of added advantage. The training institute for welding should have a complete set up of Welding booth...

Unless otherwise authorized by the engineer, any welding to the top flange of  steel members for supporting floor form joists and finishing machine rails  will not be permitted. Welding of hangers and supports to shear studs will be permitted as follows: The welder must be certified and use low hydrogen electrodes and proper No welding shall be permitted when the ambient temperature of the air is below 32° F (0°C) or when the lowest temperature during the preceding 12 hours has been below 0° F (-18°C). Windbreaks or shields shall be provided when the wind chill factor is strong or cold enough to prevent welding from being carried out in a normal manner without such Welding shall not be permitted on surfaces that are wet or exposed to Arc strikes on bridge flanges must be prevented at all times. 1. Welding of Railroad Bridge Deck Floors: Railroad bridges that  span highways  are designed with a  steel deck  that covers the bridge and are welded together in t...

  Welding Procedures Follow a clear example of  test coupons welding procedures for a  3G welding certification . In this 3G  welding procedure the notes were taken from the  same section of the AWS code  that are used for the  3/8 inch  limited thickness test procedure. The  test coupons  shall be  pre-cut  and ready to prepare. The welder shall grind the face of the test plates a minimum of one inch back from the bevel and a minimum of a quarter of an inch. Next the backing bar to bare metal shall be cleaned with a grinder and cleaned the oxidation off of the bevel, to bare metal. After the Welding Inspector will check the bevel angles with a protractor. 1. The Root Pass: The welder shall set to  root opening with two 1/8 inch  welding electrodes and then the test plate shall be inspected for fit-up. The test coupon shall be put in a  vertical position  and marked with a  white marker  to make su...