auto welding carriage for flat groove weld test process diagram

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WELDING RESEARCH Welding Process Effects in Weldability

WELDING RESEARCH Welding Process Effects in Weldability

Aug 19 Convex weld beads are high rope like welds that generally happen in flat and horizontal welding but can also occur in fillet welds when the parameters are too cold for the material Convex weld beads normally have poor fusion of the toes Increase the voltage to prevent convex beads Jan 01 welding torch position is far away from the weld groove center is flat because the groove GMAW process is the most widely used welding process the carriage and band system is the most Similar to MIG welding SAW involves formation of an arc between a continuously fed bare wire electrode and the workpiece The process uses a flux to generate protective gases and slag and to add alloying elements to the weld pool A shielding gas is not required Prior to welding a thin layer of flux powder is placed on the workpiece surface Weld Toe This is simply your weld which joins the metal pieces you are welding together the weld face and the metal Weld Reinforcement As you can see from the diagram above it& 39 s the extra weld metal the exceeds the amount of metal you need for the size of the weld Multipass Welds Heat Affected Zones In The Parts Of A Weld The Track Welding Carriage With Oscillator is a track welding carriage designed to produce butt and fillet welds with or without oscillation The carriage can work in PA flat PB horizontal vertical PC horizontal PD overhead horizontal vertical PE overhead PF vertical up and PG vertical down welding positions 1 2 3 Socket and fillet welds may vary from convex to concave The size of a fillet weld is determined as shown in fillet weld diagrams at the end of this attachment Typical minimum fillet weld details for slip on flanges and socket welding components are also contained in fillet weld diagrams at the end of this attachment AWS D 1 5 Section 3 6 2 in reference to groove weld profiles Groove welds shall preferably be made with slight or minimum face reinforcement except as may be otherwise provided In the case of butt and corner joints the face reinforcement shall not exceed 3mm [1/8 in] in height and shall have gradual transition to the plane of the base These dimensions must be shown in a detail or section view that is noted in the tail of the welding symbol The preparation of the groove may be called out for how deep you are to prepare the part This is called the depth of groove V Grooves j grooves and u grooves are the most commonly sized welds for depth backing ring or strip or it shall be weld metal deposited by another process or electrode type or the joint shall be made from both sides of the joint i e backwelded Fillet welds are considered welding on backing and all sizes of fillet welds may be made using any NCPWB WPS on any thickness or diameter base metal

Welding Certification Information In Depth Guide

Welding Certification Information In Depth Guide

The quickest way to evaluate the best choice for your welding process Step 1 Select the process FCW Flux Cored Wire Step 2 Select your weld preparation Click on the closest one to your project Butt Single V Butt Double V Butt Fillet Step 3 Select your weld preparation all variables are mandatories to proceed the calculation Mar 01 3G groove Test Position 4G groove Test Position Pipe Welding Certification Positions When it comes to welding pipe there are four main positions and again they are typically groove welds There is also a coding system to identify the positions and joint y are as follows 1 is for a pipe in the horizontal position that is rolled Plates are so placed that the weld is deposited with its axis horizontal on the upper side of the horizontal surface and against the vertical surface As shown in the below figure Plates so placed that the weld is deposited with its axis vertical as shown in the below figure PIPE POSITIONS There are also four types of pipe to pipe fillet weld technique These are Followings 1F or Flat Position Pipe with its axis inclined at 45 deg to horizontal and rotated during welding so that the weld metal is deposited from above and at the point of deposition the axis of the weld is horizontal and the throat vertical as shown in below figure Construction Metal Arc Welding or AWS A3 0 Standard Welding Terms and Definitions Process mode manual semi automatic machine and auto One of the four process modes should be checked in this section based on the following definitions Do not enter more than one process mode unless multiple processes are used Manual welding Often associated with a groove weld is going to be the weld size This weld size is the depth of penetration you will be getting when applying the weld When a weld is applied we should be melting into the root of the part so our weld should be larger in dimension than the preparation of the joint Jun 06 The groove Weld has seven primary types shown in the diagram below As the name implies groove welds are made when one material is welded to the other in a groove located on the material It is very much like sliding one piece of material into the groove located on the other material There are four welding positions for plate and four positions for pipe Plate will always be designated with an ā€œFā€ or ā€œGā€ and pipe will have no designation since it is always a groove weld Flat Welding Position 1G and 1F The number 1 position is completely flat This is the easiest welding position since you are welding with gravity the metal that is being welded and the joint type i e groove fillet etc dictates the welding parameters and the procedure that needs to be followed to obtain a sound weld joint Typical Arc Welding Processes Shielded metal arc welding SMAW Shielded metal arc welding which is also known as stick welding is the most widely used process