When two metals are joined together through the application of heat then the process of welding is said to be completed and can be used at homes, auto repairs, boats and craft projects. It is slightly different for every type of metal. Below are some important tips on how to carry out stainless steel welding.
The first step would be to ensure your own personal safety before embarking on this exercise. Make sure that you wear some protective clothing like full-length pants and shirts that expose as little skin as possible. You can also invest in a pair of gloves, protective eyewear and ear protection.
You should then choose the joining method to use from the ones that are available for base metals. The most common of these include the lap, T, edge, corner and also butt. In order to choose the right method there are several things you can look at like the strength needed, metal thickness and joint accessibility.
You should also consider the appropriate process of welding your stainless steel in completing your project. There are several processes that you can use like shielded metal arc or SMAW, Gas tungsten arc or GTAW, Flux cored arc or FCAW and Gas metal arc or GMAW. It would also be important to get an inert shielding gas that is compatible to the process you have chosen above except for SMAW, others use argon to helium.
You will also need to get filler metal in case you will be joining two metals that are the same. You should make sure that the base metal you end up with would emulate the composition of the base metals. If the metals to be joined are not similar, then you ought to ensure that you choose a filler metal that would have the least cracking chances and it also ought to be compatible with the base metal.
Make sure that you clean the base metal well to minimize the chances of oxide formation on the base metal. A stainless wire brush would be appropriate to gently brush over the metal to eradicate all the oxides that could be existing and burrs. You should also be wearing your gloves to prevent transferring any oils present on the surface of your hands to the stainless steel.
The next step would be to bring the metal to the room temperature. This would not be necessary if you will be using austenic metal but for ferritic and martensitic metals, you should preheat. You should also preheat the metal if it is particularly high or thick in carbon.
Lastly, you should apply the welding torch to the two pieces of metal you would be welding together. You should also see to it that you also apply some post heating after the process as this metal cools down rapidly causing lots of internal stress which could lead to cracking. The post-heating process is therefore essential to eliminate chances of cracking and especially more so when thick metal pieces are joined together. Ensure that you remove any slag that is left on the weld spot.
The first step would be to ensure your own personal safety before embarking on this exercise. Make sure that you wear some protective clothing like full-length pants and shirts that expose as little skin as possible. You can also invest in a pair of gloves, protective eyewear and ear protection.
You should then choose the joining method to use from the ones that are available for base metals. The most common of these include the lap, T, edge, corner and also butt. In order to choose the right method there are several things you can look at like the strength needed, metal thickness and joint accessibility.
You should also consider the appropriate process of welding your stainless steel in completing your project. There are several processes that you can use like shielded metal arc or SMAW, Gas tungsten arc or GTAW, Flux cored arc or FCAW and Gas metal arc or GMAW. It would also be important to get an inert shielding gas that is compatible to the process you have chosen above except for SMAW, others use argon to helium.
You will also need to get filler metal in case you will be joining two metals that are the same. You should make sure that the base metal you end up with would emulate the composition of the base metals. If the metals to be joined are not similar, then you ought to ensure that you choose a filler metal that would have the least cracking chances and it also ought to be compatible with the base metal.
Make sure that you clean the base metal well to minimize the chances of oxide formation on the base metal. A stainless wire brush would be appropriate to gently brush over the metal to eradicate all the oxides that could be existing and burrs. You should also be wearing your gloves to prevent transferring any oils present on the surface of your hands to the stainless steel.
The next step would be to bring the metal to the room temperature. This would not be necessary if you will be using austenic metal but for ferritic and martensitic metals, you should preheat. You should also preheat the metal if it is particularly high or thick in carbon.
Lastly, you should apply the welding torch to the two pieces of metal you would be welding together. You should also see to it that you also apply some post heating after the process as this metal cools down rapidly causing lots of internal stress which could lead to cracking. The post-heating process is therefore essential to eliminate chances of cracking and especially more so when thick metal pieces are joined together. Ensure that you remove any slag that is left on the weld spot.
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