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A Boeing weld technician inspects a recent weld on the Gore Weld Tool at NASA's Michoud Assembly Facility in New Orleans. The Gore Weld Tool is used to perform vertical conventional friction-stir welds in the production of gore assemblies for NASA's Space Launch System core stage hydrogen fuel tank -- currently under construction at Michoud. All of the hardware necessary for building the tank that will be used on the first flight of SLS has been delivered to the facility and is awaiting assembly. SLS will be the most powerful rocket ever built for deep space missions, including to an asteroid and ultimately to Mars. The core stage, towering more than 200 feet, will store cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle’s RS-25 engines. Boeing is the prime contractor for the SLS core stage, including avionics.
Image Credit: Boeing
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CP 2237 (SD22C-ECO) leads a CP SD60 on a loaded welded rail train under the Milwaukee Road searchlights in Franklin Park, IL.
Elsecar Heritage Railway, near Barnsley, UK. Long Welding track joints on the new extension near Tingle Bridge Crossing. This is track circuit work to make the level crossing work.
This is a fuel tank being welded due to the immense heat and the non corrosive zinc plating on the metal plate it creates quite a cool smoke affect
Eye protection, Who needs it --
Certain types of UV radiation can produce an injury to the surface and mucous membrane (conjunctiva) of the eye called "arc eye," "welders' eye" or "arc flash." These names are common names for "conjunctivitis" - an inflammation of the mucous membrane of the front of the eye. The symptoms include:
pain - ranging from a mild feeling of pressure in the eyes to intense pain in severe instances
tearing and reddening of the eye and membranes around the eye (bloodshot)
sensation of "sand in the eye"
abnormal sensitivity to light
inability to look at light sources (photophobia)
The amount of time required to cause these effects depends on several factors such as the intensity of the radiation, the distance from the welding arc, the angle at which the radiation enters the eye, and type of eye protection that the welder or bystander is using. However, exposure to just a few seconds of intense UV light can cause arc eye. These symptoms may not be felt until several hours after exposure.
Used a piece of grade 10 (about 13 stops) welding glas for this photo. Manual white balance using a white card. I know proper ND filters are better, but for €6 per two it's worth a try.
RJ Corman is busy installing brand new CWR on the east end of the former Pan Am. A wheeled excavator, which is utilized to position the rail exactly in place on the ties behind the puller machines, sits just ahead of the rail welding truck.
North American Prototype Modelers is replacing a section of worn-out 90-pound rail near Independence with 115-pound continuous welded rail. Union Pacific Extra 4921 East is on the River Line with a load of rail for the project. The work train is powered by a pair of SD70Ms is carrying quarter-mile-long lengths of continuous welded rail on flatcars with specialized racks — the racks have rollers which will be used to unload the rail once it arrives at the work site. The welded rail is quite flexible and easily negotiates the curves encountered by the train.
The rail train belongs to NAPM member Scot Cerka. The train was detailed by ProtoLoads of Mount Pleasant, North Carolina. The locomotives are Athearn Genesis SD70M units with Tsunami sound. The flatcars are Tangent Scale Models with rail racks added by ProtoLoads. For safety, the Union Pacific uses hopper cars as buffers at each end of the train; the two buffer cars on each end of the model are Bethlehem four-bay hoppers from Tangent Scale Models and weathered by ProtoLoads. The couplers are Sergent Engineering scale couplers. The Sergent couplers reduce the unprototypical slack and produce more reliable coupling. Finally, a 10K ohm resistor was added to the trailing truck of each car to comply with NAPM's car standards to activate the club's signal system.
At the center of the train is a tie-down car. On the prototype this car locks the rail in place; on the model it is functional and serves the same purpose. At each end of the train is a tunnel car which the rail passes through. As the train negotiates curves the rail slides in an out of the tunnel cars, allowing the train to remain flexible. Between the tie-down and each tunnel car are 10 flatcars — 20 total — which support the rail on racks with rollers. The model functions just as the prototype, allowing the rail to move through the train. Each rail is a seventeen foot (a scale quarter-mile long) piece continuously modeled from gray plastic. The rail was weathered using Rust-Oleum Painters Touch Satin Espresso, Flat Red Primer and completed with Krylon Matte Finish.
Photo by NAPM member Mark Mathu.
Visit the HO scale club on-line at www.napmltd.com.
Visit ProtoLoads at www.protoloads.com.
This is Jason welding, attaching duals to his combine to give it more flotation in the mud. Looks to me like he's getting burnt.
The process of electric arc welding is as it says ... you are basically melting the steel by running a massive electric arc through the metal, melting it and joining the material together. This is a great shot, lucky actually, as I timed it so you can see the heat through the metal with the welder on the other side.
iP5s with native camera. Then touched with Snapseed, Noiseware and Aviary.
Peacock by Amy Goodman in front of the St Edburga Building, University of Winchester, King Alfred Campus.
Polaroid Spectra photo taken circa late 1980's. Sorry for the lack of definition. Polaroids tended to appear that way often.
Two 1-Ton Ford trucks of possibly the same model year are fitted with engine-driven welding generators for arc welding in the field. They are backed up to the former rail car entrance to the maintenance shops building. When the rail tracks were removed, the weld shop expanded their work space into that area. The rigs remain outside off the building to keep exhaust fumes outside.
The welding generators are driven by their own engines, not off of the vehicle's engine. The one on the left appears to have its welding generator mounted axially to the truck body whereas the one on the black truck appears to be mounted transversely. The former layout is more common.
The staircase to the roof of the building also serves as a mounting rack to store ladders.
The welding glass fitted perfectly on to my 24mm f/1.8 Carl Zeiss Sonnar Lens. 6 seconds and little PS.