Weldcraft a150 series handheld aircooled tig welding. Tig stands for tungsten inert gas named from the tungsten electrode and the shield of inert gas. Tig welding can be carried out using dc for stainless steel, mild steel, copper. This filler metal is fed manually into the molten pool at its leading edge. In most situations, use of a dc, constant voltage wire welder is recommended. A tig welder needs a filler rod to provide the welding bead when joining two pieces of metal together tig welding produces no sparks or spatter because only the necessary amount of filler metal is added to the welding pool. Tig welding with achf alternating current high frequency combines the good weld penetration on the negative half cycle with the desired. Tig welding is an electric arc welding process in which the fusion. Tig welding is a commonly used high quality welding process.
The electrode is not melted and any filler metal needed to build up the weld profile is added separately. There is a dual manipulator, a power source for 150a, and a robot with an arc. Er4043 data sheet leading wholesaler of welding filler. Sample welding procedure specifications are available on our website. Welding technical guide getting the most out of your products. Direct current straight polarity dcsp, direct current reverse polarity dcrp, and alternating current with or without high frequency stabilization achf. Online training for the welding, gases, and safety industry. Er an electrode or filler rod that is used in either a wire feed or tig welding. The weld area and electrode is protected from oxidation or other atmospheric contamination by an inert shielding gas. Tig welding tungsten inert gas uses a nonconsumable tungsten electrode to heat the metal you would like to weld.
The a150 series torches are a costeffective alternative to. This document is not an application manual and does not contain a complete statement of all factors pertaining to those topics. The weld area and electrode is protected from oxidation or other atmospheric contamination by an inert shielding gas argon or helium, and a filler metal is normally used, though some welds, known as autogenous welds, do not require it. This course manual will provide welding general guidance and safety. Along with the wire electrode, a shielding gas feeds through the welding gun, which shields the process from contaminants in the air. Table of contents tig torch connection diagrams gascooled torches 3 watercooled torches 3 characteristics of current types for tig welding dc straight polarity 4 dc reverse polarity 4 ac high frequency 4.
This document is a must for every welding school, fabricator and home hobbyist. Tig welding with dcrp direct current reverse polarity produces good cleaning action as the argon ions. Guidelines for preparing a tungsten for ac tig welding are. This guide provides matching strength filler metal options. Chapter 3 introduction to welding in the navy as well as private industry, welding is widely used by metalworkers in the fabrication, maintenance, and repair of parts and structures. 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. Covered electrodes for manual metal arc welding of high strength steel. Tig welding, also known as gas tungsten arc welding or heliarc welding, is a welding process that utilizes a nonconsumable tungsten electrode to create an electric arc. Osha safety and health standards 29 crf 1910 is available from the u.
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. This is the welding industrys comprehensive reference on safety. Tungsten inert gas tig tig welding, is an arc welding process that uses a nonconsumable tungsten electrode to produce the weld. Although usually more difficult to master than mig welding, tig is capable of precise, high quality welds. This installation, operation, and maintenance of arc welding equipment and the employment of procedures described in. Welding methods can roughly be classified into pressure processes, fusion processes, and. 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. The square wave tig 200 is a portable tig and stick welding machine that lets hobbyists, makers, small fabricators and craftsmen explore their creativity. Gas tig process uses the heat generated by an electric arc struck between a. Experience gained from user contact and welding training of crewmembers showed that documentation aimed specifically at on board welding solutions was.
Tig welding tig welding gas tungsten arc welding gtaw is frequently referred to as tig welding. Air products welders handbook tungsten inert gas welding principles tungsten inert gas shielded welding is usually called tig welding. It uses an arc between a tungsten electrode and the work to fuse the joint. This form of welding uses argon, sometimes mixed with helium or hydrogen. May 01, 2006 experienced welders know that without the right information, its easy to sacrifice quality, lose time, and generally become frustrated with gas tungsten arc welding gtaw, also know as tig. Pdf interpulse tig welding of titanium alloy ti6al4v. The gas tungsten arc welding commonly referred to as tungsten inert. Safety compliance checklist welding operations general 29 cfr 1910 y hot work permit msfc 1155 completed and approved. Tig welding can be used to weld aluminium, copper, titanium etc and even two dissimilar metals. Guide to tig welding this is a free basic guide on how to do tig welding using a tig welder tungsten inert gas 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.
Welding is a method of joining metals in which heat andor pressure are applied to the area of contact between the two components. Excellent problem solver type electrode 4 14400405 60 general purpose electrodes, 116 x 10 long 4 14400406 60 general purpose electrodes, 332 diameter x 14 long. This is true for all advanced tig machines, and especially for inverter because it optimizes performance. It gives less spatter than most other rutile electrodes, the slag is easy to remove and the weld bead is smooth and even. It is easy to strike and restrike and therefore also good for tack welding. Dynasty 210 maxstar 210 welding equipment migtigstick. The rtech tig201 acdc tig welder used in this guide 1.
Y y mechanical ventilation is required if space is less than 10,000 cubic feet per welder, rooms having a ceiling height less than 16 feet. Optimization of mig welding process parameters for improving. Tig welding method and application tig welding definition the designation tig comes from usa and is an abbreviation of tungsten inert gas. This process is ideally suited to handling tricky welds such as sshapes, curves, corners or where the weld is going to be. The second function of the arc is to clean the surface of the molten pool and the immediately surrounding parent metal of surface oxide films and therefore no flux is required. Tig welding produces no smoke and fumes unless the base metal contains contaminants or has a dirty surface. Electrode prep techniques the tungsten electrode is the crucial carrier in the welding process and must be ground and cut properly. Mechanized tig welding mechanized tig welding encompasses a wide spectrum of applications such as precision bellows welding using. 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. Stick welding, also known as shielded metal arc 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.
869 728 1270 1137 23 1414 1220 1024 57 1425 1425 1274 923 1393 574 274 708 808 985 29 1547 614 805 1246 1550 1434 1410 117 1084 690 1117 1116