Welding
From Wikipedia, the free encyclopedia
Jump to navigationJump to search
"Welded" redirects here. For the play, see Welded (play).
Overhead stick welding.
Welding is a fabrication process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool, causing fusion. Welding is distinct from lower temperature techniques such as brazing and soldering, which do not melt the base metal (parent metal).
In addition to melting the base metal, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that, based on weld configuration (butt, full penetration, fillet, etc.), can be stronger than the base material. Pressure may also be used in conjunction with heat or by itself to produce a weld. Welding also requires a form of shield to protect the filler metals or melted metals from being contaminated or oxidized.
Many different energy sources can be used for welding, including a gas flame (chemical), an electric arc (electrical), a laser, an electron beam, friction, and ultrasound. While often an industrial process, welding may be performed in many different environments, including in open air, under water, and in outer space. Welding is a hazardous undertaking and precautions are required to avoid burns, electric shock, vision damage, inhalation of poisonous gases and fumes, and exposure to intense ultraviolet radiation.
Until the end of the 19th century, the only welding process was forge welding, which blacksmiths had used for millennia to join iron and steel by heating and hammering. Arc welding and oxy-fuel welding were among the first processes to develop late in the century, and electric resistance welding followed soon after. Welding technology advanced quickly during the early 20th century as world wars drove the demand for reliable and inexpensive joining methods. Following the wars, several modern welding techniques were developed, including manual methods like shielded metal arc welding, now one of the most popular welding methods, as well as semi-automatic and automatic processes such as gas metal arc welding, submerged arc welding, flux-cored arc welding and electroslag welding. Developments continued with the invention of laser beam welding, electron beam welding, magnetic pulse welding, and friction stir welding in the latter half of the century. Today, as the science continues to advance, robot welding is commonplace in industrial settings, and researchers continue to develop new welding methods and gain greater understanding of weld quality.
Contents
1 Etymology
2 History
3 Processes
3.1 Gas welding
3.2 Arc welding
3.2.1 Arc welding processes
3.2.2 Arc welding power supplies
3.3 Resistance welding
3.4 Energy beam welding
3.5 Solid-state welding
4 Geometry
5 Quality
5.1 Heat-affected zone
5.2 Lifetime extension with after treatment methods
6 Metallurgy
7 Unusual conditions
8 Safety issues
9 Costs and trends
10 Glass and plastic welding
10.1 Glass welding
10.2 Plastic welding
11 See also
12 References
12.1 Sources
13 External links
i think what melloe did in this map is something I rarely see in other maps -- i think he genuinely loved this song, and through this map he managed to convey quite effefctively the things he love about this song.
This map goes INSANEO STYLE
03:53:175 (1,2,1,2,1,2,1,2,1,2,1,2,3,4,5,6,7,1,2,1,2,1,1,2,3,4,5,6,1,1,1,1,1,2,3,4,5,6,7,1,2,3,4,5,1,2,1,2,1,1,2,3,4,5,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,2,3,4,1,1,2,1,2,1,2) - god
i guess you can say the map was a let down
(sorry)
RLC has such a way with slightly tweaking patterns to modify degree of strain
break time usage is genius
*1/6s
fear having different mp3 to add 1/8 rhythms is so funny
hey this aint half bad
impure insane flames except for one pattern near the beginning fuck that
50% reason why i started mapping
checked out I'm waiting for the weekend
the pain and tension felt like forever
fantastic
winber1-with contrast, the simplest patterns can become memorable
tasteful hitsounding
fuck that last burst near the end
patterns get more interesting in second half
topdiff: not bad. fun. kinda interesting map idea
Welding
From Wikipedia, the free encyclopedia
Jump to navigationJump to search
"Welded" redirects here. For the play, see Welded (play).
Overhead stick welding.
Welding is a fabrication process that joins materials, usually metals or thermoplastics, by using high heat to melt the parts together and allowing them to cool, causing fusion. Welding is distinct from lower temperature techniques such as brazing and soldering, which do not melt the base metal (parent metal).
In addition to melting the base metal, a filler material is typically added to the joint to form a pool of molten material (the weld pool) that cools to form a joint that, based on weld configuration (butt, full penetration, fillet, etc.), can be stronger than the base material. Pressure may also be used in conjunction with heat or by itself to produce a weld. Welding also requires a form of shield to protect the filler metals or melted metals from being contaminated or oxidized.
Many different energy sources can be used for welding, including a gas flame (chemical), an electric arc (electrical), a laser, an electron beam, friction, and ultrasound. While often an industrial process, welding may be performed in many different environments, including in open air, under water, and in outer space. Welding is a hazardous undertaking and precautions are required to avoid burns, electric shock, vision damage, inhalation of poisonous gases and fumes, and exposure to intense ultraviolet radiation.
Until the end of the 19th century, the only welding process was forge welding, which blacksmiths had used for millennia to join iron and steel by heating and hammering. Arc welding and oxy-fuel welding were among the first processes to develop late in the century, and electric resistance welding followed soon after. Welding technology advanced quickly during the early 20th century as world wars drove the demand for reliable and inexpensive joining methods. Following the wars, several modern welding techniques were developed, including manual methods like shielded metal arc welding, now one of the most popular welding methods, as well as semi-automatic and automatic processes such as gas metal arc welding, submerged arc welding, flux-cored arc welding and electroslag welding. Developments continued with the invention of laser beam welding, electron beam welding, magnetic pulse welding, and friction stir welding in the latter half of the century. Today, as the science continues to advance, robot welding is commonplace in industrial settings, and researchers continue to develop new welding methods and gain greater understanding of weld quality.
Contents
1 Etymology
2 History
3 Processes
3.1 Gas welding
3.2 Arc welding
3.2.1 Arc welding processes
3.2.2 Arc welding power supplies
3.3 Resistance welding
3.4 Energy beam welding
3.5 Solid-state welding
4 Geometry
5 Quality
5.1 Heat-affected zone
5.2 Lifetime extension with after treatment methods
6 Metallurgy
7 Unusual conditions
8 Safety issues
9 Costs and trends
10 Glass and plastic welding
10.1 Glass welding
10.2 Plastic welding
11 See also
12 References
12.1 Sources
13 External links
i think what melloe did in this map is something I rarely see in other maps -- i think he genuinely loved this song, and through this map he managed to convey quite effefctively the things he love about this song.
yeah. this mapset is it
sorry
i think the emphasis is done better here than in Reform's
it mapped the whole song, so that's a plus...
we only have pieces that we don't know how to put together
ok thats just trolling lmao.