Wc474 welding positions for groove and fillet welds poster. The welding position refers to the position of the welding operator towards the workpiece to be welded. What are the 1g, 2g, 5g, and 6g pipe welding positions. Welding positions, a reference to the positional aspects of welding. Also keep in mind that even though there are many different welding codes, many of their requirements overlap, so it is possible to perform a single welder qualification coupon that could qualify you. Welding interview questions and answers will guide us now that welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. Bs en 15614, en 287, en iso 9606, bs 4872, asme section. The most common type of weld you will do is a fillet weld and a groove weld, and you can accomplish these welds in all four positions. When welding is done on a vertical surface, the molten metal has a tendency to run downward and pile up. For fillet connections, it is symbolized with positions 1f, 2f, 3f, and 4f, while for groove or bevel connections it is. If one clear 6g test, he will automatically qualifies for all. All welding can be classified according to the position of the workpiece or the position of the welded joint on the plates or sections being welded. Wc474 welding positions for groove and fillet welds poster author. But you also do surface welds in all four positions as well, thought you will not do this type of weld very often.
The basics of welding certifications and test positions welding certifications are procedures that a welder must follow to produce a sound weld according to the guidelines that are specified. The purpose of the welding handbook for maritime welders is to provide guidance in modern welding and related processes and to provide the welder with a source of practical information on the right solution to specific onboard welding problems. Welding position free download as powerpoint presentation. The purpose of each of the welding codes is to have a uniform way to approach welding that reflects the best practices developed and proven to work over time. This is one of most commonly used and convenient welding position. If there is no impact or hardness survey requirement, one position covers all positions. In welding technology, all of them have coding based on the type of connection. Experience gained from user contact and welding training of crewmembers showed that. The basics of welding certifications and test positions.
Pipe welding positions can be divided into 4 groups. Pg vertical down position ph pipe position for welding upwards formerly pf pj pipe position for welding downwards inclined position formerly pg welding positions according to din en iso 6947 pipe rotation pipe rotation pipe rotation pipe fixed pipe fixed pipe fixed jl045 pipe fixed welding downwards hl045 pipe fixed welding upwards pipe fixed. This is often done by melting the workpieces and adding a filler material to form a pool of molten material the weld pool. Fillet weld on a lap joint in the vertical position.
The american welding society has defined the four basic welding positions as shown below. For certified companies, there must always be a certification standard stated eg. Wc474 welding positions for groove and fillet welds poster keywords. These factors include, but are not limited to, the type of steel, type of weld, loading on the welded joint, applicable codes, level of preheat, level of restraint, position of welding, condition of the steel, and service conditions. If impact tests are required, the weld procedure approves other positions requiring the. Welding positions according to din en iso 6947 messer group. Welding position is the type or position of the connection to be welded, this welding position is based on the material or product to be welded. Its important to understand the types of welding positions as different welding processes require to be performed at a certain position of the welder.
To qualify a welder for a different welding position, one has to define the range of where a particular position e. As mentioned earlier, this is not an exhaustive list, but it is a good starting point. Flat welding in flat welding, plates to be welded are placed on the horizontal plane and weld bead is also deposited horizontally fig. This is the easiest welding position since you are welding with gravity. There are four welding positions for plate and four positions for pipe. Welders must be certified in each position in order to perform those types of welds. Even the department of defensedod has either adopted many of these codes, or used them as a basis to develop their own codes known as milspecs. Horizontaluberkopfposition horizontal overhead position. Vertical position 3f or 3g in vertical position welding, the axis of the weld is approximately vertical. Welding codes and how theyre used son set consultants. The certification is a handson welding test that is always supervised by an individual that has been trained and approved by the organization that wrote. Welding position are not dependent on the geometrical arrangement of the joint.
Aws codes many aws codes allow the use of prequalified welding procedures prequalified procedures are written documents that define welding parameters for the welder and are within defined limits set by the referencing code e. The welding positions shown above are commonly used by codes when qualifying welders. Flat position er70s6 electrode was used for gmaw er80sd2 electrode was used for gtaw no preheat or pwht procedure qualification record pqr needs to address the welding variables of each welding process. Welding positions en iso 6947 and asme use the same welding positions, but with different labels. There are four main types of welding positions, which we. In 1g and 1f, the number 1 refers to the flat position, while the letter g stands for a groove weld and letter f stands for a fillet weld. Aws is for both welder and welding procedure qualification including inspection, erection and fabrication. The difference between asme and aws is that asme is for welding procedure and welder qualification. Apply to welder, pipefitter, structural welder and more. This document is not an application manual and does not contain a complete statement of all factors pertaining to those topics. The 1g and 5g horizontal and 2g vertical positions refer to the pipe position. Asnzs 4855, welding consumables covered electrodes for manual metal arc welding.
There is also a 6gr position, which is the 6g position with a restriction simulating ring around the pipe. Welding positions production welding positions groove welds fillet welds standard test positions positions 1g, 3g, 6g, 2f, 5f, etc. Horizontal welding of buttwelds and fillet welds in flat position. Plate will always be designated with an f or g and pipe will have no designation since it is always a groove weld. In 5 g welding is done vertically either upwards or downwards. Some welding processes have allposition capabilities, while others may be used in only one or two positions. Welding electrodes classification for shielded metal arc welding smaw by american welding society aws is as follows. Articles welding positions iso, asme and aws weldnote. Contact information telephone 4078804945 consulting is. Welding codes and how theyre used almost all design, welding, fabrication, material, repair, testing, and inspection requirements are covered under three main governing organizations. Because of gravity, the welding position affects the flow of molten filler metal.