Accutrate welding services specailists in electron beam. Electron beam welding electron beam welding joins ferrous metals, light metals, precious metals, and alloys, to themselves or each other. Seminar on underwater welding report and ppt download introduction to underwear welding underwater welding is an important tool for underwater fabrication works. Scribd is the worlds largest social reading and publishing site. Produces coalescence of materials by heating them to the welding temperature. Since the beginning of electronbeam welding on an industrial scale at the end of the 1950s, countless electronbeam welders have been designed and are being used worldwide. These electrons are accelerated by applying high potential difference 30 kv to 175 kv between cathode and anode. Electron beam eb welding is a fusion welding process whereby electrons are generated by an electron gun and accelerated to high speeds using electrical fields. Multiaxis eb control high ratio of depthtowidth maximum penetration with minimal distortion exceptional weld strength ability to weld components up to 10 feet in diameter high. Electron beam welding is the ultimate fusion welding process. Materials are joined by using a beam of highvelocity electrons to create kinetic energy between the two workpieces and cause the two pieces to melt and flow together. The laser beams produced are coherent having the same phase and monochromatic i. It is a nontraditional machining process in which no physical tool is used. Electron beam welding process, applications and equipment ptr.
Jul 30, 2010 we have all new and upgraded electron beam, tig, micro tig and resistance welding equipment. This specification on electron beam welding discusses applicable specifications, safety, requirements, fabrication, quality examination, equipment calibration and maintenance. Ppt laser beam machining powerpoint presentation free to. Electronbeam welding ebw is a fusion welding process in which a beam of highvelocity electrons is applied to two materials to be joined. We are nadcap approved, iso certified, and air agency certified. The electron beam is produced in a high vacuum environment by an. In addition to making eb and laser welding equipment, ptr assists customers with weld process development and provides maintenance and spares support for electron beam welding systems. In recent years the number of offshore structures including oil drilling rigs, pipelines, platforms are being. Electron beam welding associates specializes in electron beam welding services. Electron beam machining equipment the basic functions of any electron beam gun are to generate free electrons at the cathode, accelerate them to a sufficiently high velocity and to focus them over a small spot size. We have all new and upgraded electron beam, tig, micro tig and resistance welding equipment. The workpieces melt and flow together as the kinetic energy of the electrons is transformed into heat upon impact.
Electrons hit the workpiece and their kinetic energy is transformed to the thermal energy heating the metal so that the sides of the workpiece can be joined and a weld can be formed after freezing the electron beam welding is also a liquid state welding process. Electron beam welding ebw applications by industry ptr. Mar 22, 2017 electron beam welding process is carried out in vacuum. Electron beam welding is a fusion welding process in which the beam of high velocity electrons is applied to two materials to be joined. Since the beginning of electron beam welding on an industrial scale at the end of the 1950s, countless electron beam welders have been designed and are being used worldwide. We can weld almost any material and wide variety of dissimilar metals combinations. Electron beam welding electron beam welding ebw electron beam welding is a welding process utilizing a heat generated by a beam of high energy electrons.
This high speed stream of electrons is then focused using magnetic fields and precisely applied to the materials to be joined. Electron beam welding eb welding services eb industries. Electron beam characterisation methods and devices for. Electron beam welding is a welding process that uses the heat produced by a beam of high energy electrons. A free powerpoint ppt presentation displayed as a flash slide show on id.
Electron beam welding using ebw consists of a highly focused, high speed stream of electrons that bombard the component to be welded. Mar 30, 2017 today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. Cottrell engineering consultant, manor bungalow, souldern, bicester, oxon. It is often used in unrestrained parts to prevent openingup of the seam as full penetration welding progresses. Ppt electron beam welding powerpoint presentation, free. In this machining process metal is removed by melting and vaporization of metal particle from surface of work piece. May 04, 2017 characteristics of laser beam welding. The electron beam is required to reach the workpiece placed in the welding chamber to affect the necessary welding. Tack welds are made at less than the power needed for full penetration 20% to 40%. This will generate high heat energy and melts and vaporize metal from work piece. Ptr is an electron beam welding systems manufacturer and contract welding service provider on the leadingedge of electron beam and vacuum welding technology. The main applications for this high efficiency welding process are. Steigerwald constructs electron beam welding machines, primarily for. This high speed stream of electrons is tightly focused using magnetic fields and applied to the materials to be joined.
In order to solve these problems, many welding methods have been practiced to investigate the joining between titanium alloys and stainless steels, mainly including brazing welding 7, 1620, laser welding 2, 5, 6, 2125, electronbeam welding 2631, diffusion bonding 3236, explosive welding 3740, and friction stir welding 4147. How do i produce a vacuum for eb electron beam welding. Electrons are generated via an electron gun and then accelerated to very high speeds using electrical fields. The penetration of the weld can be precisely adjusted from near zero to as much as 6 inches. The kinetic energy, which turns into heat upon impact, causes the two pieces to fuse together as a welded component. Mar 31, 2017 it is a nontraditional machining process in which no physical tool is used. These welders feature working vacuum chambers ranging from a few liters up to hundreds of cubic meters, with electron guns carrying power of up to 100 kw. Sep, 2017 electron beam welding is a fusion welding process in which the beam of high velocity electrons is applied to two materials to be joined. Download ppt electron beam welding welding technology4. Welcome to the most trusted and comprehensive welding services. Aug 08, 20 electron beam welding laser beam welding power supply for resistance welding power supply for arc welding comparison between resistance and arc welding 3. Requires special techniques but can be electron beam welded.
A leading edge electron beam welding company since 1966, we partner with our customers to provide high performance quality results. Electron beam welding is a machine controlled process, with welding carried out in vacuum with no filler material, resulting in exceptional weld quality and repeatability. Electron beam welding, despite a long history and widespread arc and laser technology, is still widely used in industry. Electron beam welding is a fusion welding process in which a beam of highvelocity electrons is applied to the material to be joined. The reputation of electron beam welding llc for excellence and competence remains the cornerstone for continued growth. Oct 27, 2010 from chambers measuring 1 cubic foot to the largest eb welder on the east coast, ebtecs electron beam welding services handle fabrication challenges with precision and speed. Electron beam welding parts, working, applications with. The beam of electrons creates kinetic heat as it impacts with the workpieces, causing them to melt. Laser beam welding equipment, principle, working with. Today we will learn about laser beam machining principle, working, equipments, application, advantages and disadvantages with its diagram. If you need faa repair station welding, micro welding, fusion welding, vacuum chamber welding, high purity welding, high energy welding, low distortion welding, biomedical device welding, dissimilar metal welding, then visit our. Electronbeam welding article about electronbeam welding. The electrons strike the work piece and their kinetic energy converts into thermal energy heating the metal so that the edges of work piece are fused and joined together forming a weld after.
Electron beam welding is used where high integrity and reliable joints are required. The study investigated laser welding with filler wire to determine the effects of wire feeding modes and the height of intersection of the wire and the beam h on weld geometry and droplet transfer. The beam of electrons creates kinetic heat as it impacts with the workpieces, causing them to melt and bond together. Distortion and metallurgical effects are much less. It is the most reliable joining process for welding certain materials with very high quality requirements. The electron beam gun has a tungsten filament which is heated, freeing electrons. Eb welding has a high power density, with very low over all. Electron beam welding ebw is a fusion welding process in which a beam of highvelocity electrons is applied to two materials to be joined. Electron beam welding process, applications and equipment. A vacuum is produced by using a vacuum pump to remove air from a closed volume. Further, the beam needs to be manoeuvred if required by the gun. Electron beam welding is widely used for high integrity fabrication, particularly in industries such as aerospace. From chambers measuring 1 cubic foot to the largest eb welder on the east coast, ebtecs electron beam welding services handle fabrication challenges with precision and speed. Electron beam welding at institute of scientific instruments of the cas, v.
Specialist in electron beam welding large and small part capability. Electron beam welding ebw is a form of fusion welding. View history of welding ppts online, safely and virusfree. Vander willingena in recent years the number of offshore structures including oil drilling rigs, pipelines, platforms are being installed significantly.
Please enter the required information into the form below to begin your download. The cathode is generally made of tungsten or tantalum. Electron beam welding electron beam engineering, inc. The beam is very narrow and the heat affected zone is minimized. Ebw is usually performed in a vacuum, so the electron beam doesnt dissipate. In this process, electrons are emitted from the heated filament called electrode. Electron beam welding ebw and laser beam welding lbw. May 01, 2016 electron beam welding, despite a long history and widespread arc and laser technology, is still widely used in industry. Electron beam welding process a with preheating or postweld heat treatment, b with preheating and postweld heat treatment, c with heat treatment conducted outside the weld axis d exemplary geometrical dimensions of the additional beam. Laser beam machining is a thermal machining process which uses laser beam to produce heat. The study investigated laser welding with filler wire to determine the effects of wire feeding modes and the height of intersection of the wire and the beam h on.
Electron beam welding is a fusion welding process where a narrow beam of electrons with high velocity is used to weld the two pieces of metals. If you are at the beginning of a project, we can provide help with prototype testing and. Electron beam welding free download as powerpoint presentation. Tack welding with the electron beam is generally useful as a fixturing aid. The electron beam welding ebw and laser beam welding lbw processes are highenergy density welding processes that offer several possible advantages, including low welding heat input, high weld depthtowidth ratio, narrow heataffected zone haz, and reduced distortion. Ppt laser beam machining powerpoint presentation free. If you need faa repair station welding, micro welding, fusion welding, vacuum chamber welding, high purity welding, high energy welding, low distortion welding, biomedical device welding, dissimilar metal welding, then visit our website today. In 1946, special waterproof electrodes were developed in holland by e. Leadingedge eb welding since 1966 electron beam welding, llc. Several joining processes use vacuum as the joining environment or in the equipment itself, e. View electron beam machining process ppts online, safely and virusfree.