I was taught that soldering,as it relates to piping, is the heating of the base metal to a point to where the filler metal will melt and fill the gap between the two pieces of metal being soldered. The base metal is NOT melted, only the filler metal. Soldering is usually used to join non-ferrous metals. Welding is when the base metal is heated to a point where it will melt and , with the filler metal, becomes part of the weldment. In other words, the two pieces become one, and the resulting weld is now a blend of base metal and filler metal.
soldering is a very low heat (melting temperature of the soldering alloy is less than 840 degrees Fahrenheit), semi-adhesion process, final product: 2 base materials, and a filler material on top. welding is high heat fusion process, final product: a solid blended material
Soldering and brazing are adhesive processes, welding is a fusion process. Soldering and brazing are best described as really good glue, but can be broken to get the original 2 pieces of metal. Welding make the 2 pieces, 1 piece; under a microscope, there is one metal. Also soldering and brazing steel are done at 300/800 degrees. Welding is around 3800 degrees.
in welding, the two parts of the materials are joined together by melting the base metal and then adding the filler material into it.
whereas in brazing the base metal is not melted.
also brazing is done at a low temprature as compared to welding because in brazing the base metal gets melted at about 800C whereas in welding we apply a great temprature as compared to brazing.
welding can be done more precisely on the material, materials are joined more powerfully with welding as compared to the brazing.
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Muddled!
Welding melts and fuses two parts made in a single parent metal, with or without adding extra metal from a "filler rod".
Soldering joins the parent metal(s) with a second (or third) metal, the solder, which bonds to the materials being joined.
Solder may be low-temperature alloy based on lead and tin (though in some countries now,, lead solders are being made legally obsolete), or at much higher temperatures using a silver-bronze (silver-soldering) or a brass (brazing).
Welding is joining two pieces of the same type metal, usually steel or an alloy of steel with a rod of similar type metal. This can be done with gas, an arc welder or a wire feed welder. Welding is done on Ferrous or Iron based metal. Soldering is for Non Ferrous or copper based things, copper and brass. Soldering uses a different metal with a low melting point to join the two items. Solder comes in different mixes for different uses. Some are just lead, some have Tin, some Silver. Brazing is used on Iron or Steel and uses a copper based rod that is melted to join the two items. It is done with a torch using a flammable gas and oxygen.
This isn't a very in-depth explanation, but it seems like the primary difference is that welding is the act of welding, forming two pieces of melting together, whereas weld-ability is the ability for metal to be welded (thanks, Webster, I know).
Weld-ability involves the potential for weld defects, metal treatment (pre- and post-heating, etc), and process factors.
what is the difference between ultrasonic welding & radiographic welding
back hand welding is when you pull the welding rod or whatever it is that you are using and forehand is when you push it ahead
"Automotive" means that such a person is specialized in cars.
SAW welding is a type of arc welding while ERW welding is spot or seam welding. SAW stand for submerged arc welding while ERW stands for electric resistance welding.
EFW: Electric Fusion Welding is a more general term which includes Electric resistance welding (ERW) and other types of welding such as Arc welding.
what is the difference between ultrasonic welding & radiographic welding
The prehaet temperature is taken before welding starts. The interpass temperature is taken between welding passes.
back hand welding is when you pull the welding rod or whatever it is that you are using and forehand is when you push it ahead
"Automotive" means that such a person is specialized in cars.
SAW welding is a type of arc welding while ERW welding is spot or seam welding. SAW stand for submerged arc welding while ERW stands for electric resistance welding.
The best grade of aluminum for TIG welding is typically 5XXX series, specifically 5052, 5083, or 5086. These grades offer good weldability, strength, and corrosion resistance, making them ideal for TIG welding applications.
There's some information on welding at http://www.WeldingFun.com .. should have the answer your looking for. Sorry for being to lazy to look it up
The main difference between these two types of welding is that GTAW uses gases to create the weld whilst SMAW uses an an electrical current. Both are very popular welding processes.
If by gas welding you mean-oxyacetylene welding. The difference is just that arc welding requires a darker shade of lens. When oxyfuel gas welding (OFW) usually a shade 5 lens is recommended. When arc welding, a minimum of shade 10 lens should be used (actually shade should be determined by amount of current used).
what is the difference between 7018 and 7018-1
EFW: Electric Fusion Welding is a more general term which includes Electric resistance welding (ERW) and other types of welding such as Arc welding.
The only difference between the two is that projection welding requires preparation of the joint members in the way of adding a preformed dimple or projection. Spot welding is used without such preparation to the joint members. it's just heat and pressure.