Welding procedure specifications wps ohio gas association. Download standard wps for welding with flux cored wire. Each of these has its applications, advantages, and. An easy to follow guide covering the preparation of welding. A welding procedure specification wps is a formal written document describing welding procedures, which provides direction to the welder or welding operators for making sound and quality production welds as per the code requirements. This wps shall be used in conjunction with the general welding standards gws and welding fabrication procedure wfp sections. Mechanically strong and visually appealing, tig welding is the number one process chosen by professional welders for professional racing teams, and the avid auto enthusiast or hobbyist. Guidelines for preparing a tungsten for ac tig welding are. Processes 215994 f 201801 guidelines for gas tungsten arc welding gtaw tig gtaw welding for product information, owners manual translations, and more, visit. Create industry standard welding procedures from anywhere, online, in minutes wps, pqr, wpq, wpqr, and welders management reports supports multiple structural steel welding. Types 405, 409, 430, 422 and 446 are representative of this group. Here, the alternative routes for welding procedure approval are described together with the requirements for welder or welding operator approval. Welding procedure specifications are needed in order to provide a welldefined basis for planning of the welding operations and for quality control during welding. Guideline how to measure current, voltage and arc power in.
Slagboy enterprises authorized by samuel slaghammer oct 28, 2011 welding. Welding procedure specification wps yes prequalified. Tig welding method and application tig welding definition the designation tig comes from usa and is an abbreviation of tungsten inert gas. In this episode we look at reading a wps welding procedure specification. A sdvosb service disabled veteran owned small business. Wps vs pqr wps welding procedure specification and pqr procedure qualification record are documents that refer to the practice of welding. The 5g position is similar to 1g in that the pipe is placed horizontally, except that it is fixed and cannot move. Welding procedure specification wps welding procedure no. Direct current straight polarity dcsp, direct current reverse polarity dcrp, and alternating current with or without high frequency stabilization achf.
The welding procedures applied during production shall be as specific as possible, in order to clearly identify actions and parameters to be used for the required joint. Where applicable, the root spacing details of the weld groove may be specified. Tig welding is one of the most common welding processes. Welding procedure software supports aws d1 series welding codes, aws b2. How to write a wps iso 156141 welding tips and tricks.
Ix, api 6a, ped, and nace mro175iso 15156xxx facility codes for a wide variety of materials. One example of quality control is the application of welding procedure specification wps in order to obtain the right level of quality in welds. Tungsten also called wolfram is a metal with a fusion point of more than 3300oc, which means more than double the fusion point of. Browse suggested weld parameter settings for tig welding. Jun 06, 2016 how to write a welding procedure specification iso 156141 one of the most important documents in regards to welding is the wps welding procedure specification and many people working with wps look at them like they are just an issue, or something that only the engineers and quality control technicians have to worry about, but is it a hard thing to create andor look at. We have carried out all the necessary welding procedure specification tests, monitored and approved by the notified body inspector, to ensure that our wpss help you to meet the standards and requirements you need. This will require you weld in a variety of different positions, including overhead. If you are involved with code welding then you are probably. Stainless steels austenitic stainless steels include the 200 and 300 series of which type 304 is the most common. Tig weld setting calculator welding equipment migtig.
The popularity of aluminum in automotive applications has brought tig welding to a new golden age. That will also give you a better chance of getting a better metallurgical match for the two materials, ie 309lsi or 312 stainless filler for example without it costing a small fortune in consumables. The welding process and electrodes must be suitable for all positions. How to write a wps iso 156141 by weldnote tue jun 07, 2016 4. The welding of stainless steels 3 2 stainless steel welding processes 2. Miller electric manufactures a full line of welders and welding related equipment. The 2g position is fixed, which means that the pipe cannot be turned as you weld. Tig welding is a skill that needs to be developed over time, with a piece of metal in front of you and with a welding torch in your hands.
Migatronic is a manufacturer of arc welding machines and welding equipment. Kemppis universal standard wps package for migmag welding can save you and your company money. Sample of welding procedure specification wps company name by wps no. The preparation of a welding procedure specification wps provides the necessary basis for fulfilling the applicable requirements, but it does not in itself ensure that the welds. A welding procedure specification wps sets broad guidelines for the shop and field welding practice of. The rtech tig201 acdc tig welder used in this guide 1. Tig welding differs from the other arc welding processes by the fact that the electrode is not consumed like the electrodes in other processes such as mig mag and. The purpose of the document is to guide welders to the accepted procedures so that repeatable and trusted. Tungsten also called wolfram is a metal with a fusion point of more than 3300oc, which means more than double the fusion point of the metals which are usually welded. It aids in planning and ensuring quality control of the welded product as well as future reproductions of the product. A welding procedure specification wps is the formal written document describing welding procedures, which provides direction to the welder or welding operators for making sound and quality production welds as per the code requirements. The primary alloying additions are chromium and nickel. The manufacturer shall prepare the welding procedure specifications wps and shall ensure that these are used correctly in production. Download this printable free guide to tig welding tig welding is a skill that needs to be developed over time, with a piece of metal in front of you and with a welding torch in your hands.
Wpsamerica online welding software comply with aws d1. This wps shall be used in conjunction with the general welding standards gws and welding fabrication procedure wfp. User can also enter a different wpds and wps number if desired. If you are involved with code welding then you are probably familiar. The purpose of the document is to guide welders to the accepted procedures so that repeatable and trusted welding techniques are used. Arc welding mig welding tig welding stick welding flux cored. Weldproc software automatically populates wpds and wps numbers for easier tracking. Sawp9201 consumables base material welding process root. Oct 27, 2015 in this episode we look at reading a wps welding procedure specification.
Wps qualified by mechanical testing pqr is documentation to prove that a weld can be made using the procedure and have acceptable mechanical properties how do you qualify a welding procedure. Welding procedure specification example a wps is a document that describes how welding is to be carried out in production. However, the nature and use of a wps, and its supporting procedure qualification record pqr, are commonly misunderstood. Tig is not a requirement, welding a test coupon and doing some bend tests to verify welder skill is recommended. In this case, the pipe is placed on its base, which makes it much sturdier and more stable to weld. Guideline how to measure current, voltage and arc power. This wps shall be used in conjunction with the general welding standards gws and welding fabrication procedure wfp sections and criteria for joint details, repairs, nde, inspection, etc.
Understand the intended application for which the wps will be used 2. Sketches, production drawings, welding symbols, or written description should show the general arrangement of the parts to be welded. A welding procedure specification wps is a written document providing direction to the welder or welding operator. Specification type and grade to specification type and grade.
Gtaw the gtaw process, also known as the tig tungsten inert gas or wig wolfram inert gas process, is illustrated in the above figure. The art and science of joining metals by using the intrinsic adhesive and cohesive forces of attraction that exist within metals. Welding procedure specifications wps accuweld 281 442. Wpspqr explained american welding society education online. Welding procedure specifications wps allow welders to consistently produce welds that meet desired requirements without any rework. This online course provides a comprehensive overview of these documents in an engaging. Joint type backing backing material type groove angle root opening radius u or j root face backgouging yes or no.
A welding procedure specification wps sets broad guidelines for the shop. Routes to welding procedure approval the key document is the welding procedure specification wps which details the welding variables to be used to ensure a welded joint will achieve the specified. Welding procedure specificaton wps btc gmaw 9010 2011 prequalified per aws d1. Ferritic stainless steels are nonhardenable fecr alloys. When submitting wpds for the first time, welding procedure specification will also be submitted along with wpdss. If you would like to add translations to any of these videos, see the. When you switch over tip tig, you do not have to requalify your wps or welder to use tip tig. Unless specifically required otherwise by the welding variables qw250, a qualification in any position qualifies the procedure for all positions. Select a tungsten with 2% cerium 2% thorium as your second choice. Types of welding wps, cwb arc welding tig welding method. How to write a welding procedure specification wps. If you are involved with code welding then you are probably familiar with this already. Welding it in two halves 0180 degrees will be much easier if it is tig or stick welded. Tig gtaw welding stick smaw welding om2242 208 580ac 2012.
Welding, brazing, soldering does not include mechanical fastening such as bolts, rivets, screws, etc. How to create welding procedure specification wps and. They are recommended for all welding operations and many application codes and standards make them mandatory. Jul 24, 2017 welding it in two halves 0180 degrees will be much easier if it is tig or stick welded. Welding procedure specifications wps accuweld has developed and qualified over 300 welding procedures in accordance with asme sect. This is true for all advanced tig machines, and especially for inverter because it optimizes performance. Apr 19, 2017 tig welding is one of the most common welding processes.