By definition, welding must exceed 800 degrees F, and depending on what is being welded, the temperatures may well exceed 1,200 degrees F.
Yes, but it will take years for the base metal to get hot enough for any fusion welding.
circumfrencial weld is sometimes referred to as Girth weld. its just another term.
Yes, you can weld steel to steel. You can use steel welding rod.
A weld symbol is the shape drawn on a Print to tell the welder: how to prepare a welding joint, what process can be used to weld (mig, tig, arc, etc) what filler rod to use, how wide and long the weld should be, how to deal with the weld after your done (grind flush, brush clean, or nothing) and a million other things.... Its a tool that design engineers use to communicate what the weld needs to be to meet their design specifications.
why is it important only to strike the arc in the weld joint
its called flux
You aim the hot air at the plastic edges and it melts as you put them together.
my exhuast is broke jb weld will hold to 600 degrees so will the exhaust get to hot
A hot pass is a technique used in welding to maintain the temperature of a weld joint, ensuring proper fusion and penetration. It involves making a preliminary weld pass on a joint before the final welding passes are completed. This helps prevent issues such as cracking or distortion and improves the overall quality and strength of the weld. Additionally, it can aid in removing impurities and preparing the surface for subsequent weld layers.
Hot shortness is a welding defect that occurs when the material becomes brittle and cracks at high temperatures, typically due to sulfur or phosphorus impurities. This can lead to a weakened weld joint and compromise the integrity of the weld. Temperature control and proper material selection are key factors in preventing hot shortness during welding.
Example: "How hot does the flame have to be to weld two pieces of metal together with liquefying them?"
You it cracks when it cools and you are not seeing hot cracking that occurs at elevalted temperatures ?
Yes, but it will take years for the base metal to get hot enough for any fusion welding.
Depends on what you are welding, but generaly welds can meet, or even weld on top of a weld.
Theodore Weld
The tip of the tungsten electrode has to be hot in GTAW because you are trying to weld two pieces of metal together, and that takes a lot of heat.
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