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[machinist] Could I get a education on why their are several types of arc rod and about 2 mig?
- From: Lawrence London <lfljvenaura@gmail.com>
- To: machinist@lists.ibiblio.org
- Subject: [machinist] Could I get a education on why their are several types of arc rod and about 2 mig?
- Date: Mon, 8 Feb 2016 15:01:17 -0500
Could I get a education on why their are several types of arc rod and about 2 mig?
http://www.practicalmachinist.com/vb/general/could-i-get-education-why-their-several-types-arc-rod-about-2-mig-315939/
For starters, they are two different welding processes.
With MIG, the shield gas acts as the shield and flux.There is also flux coated wire which eliminates the use of the shield gas but then you have a flux that must be removed when the weld is complete. This usually just falls off if the weld process is setup correctly.
With stick, the electrode coating becomes the shield and flux.
With MIG, there are different wire alloys that should be matched to the base metal.
With stick, there are different flux coatings and filler alloys. These must be matched to the conditions, base metal, and weld position.
Stick welding is traditionally constant current. Mig is usually constant voltage. This cause differences in arc characteristics, weld flow, and base metal heat transfer.
With stick, you match the weld rod size to the heat you need.
With MIG, you can vary the voltage, current, and even the weld mode such as short circuit vs. spray transfer.
MIG wire dia. is somewhat limited by the gun and wire feeder. There are other sizes available than the standard .035 and .045.
For doing heavy weldments, stick and subarc are both popular processes as they have the ability to deposit much more weld material per minute or hour than a traditional MIG setup unless you go to multiple wire feeders.
This is just a very short summary. For more read a good welding book. There is a lot to this.
<>
The Lincoln Welding Foundation was set up to promote welding and has many helpful publications and DVDs. They sell them very cheaply, to promote welding of course, but they are not too biased towards their own products. I have bought many of them, they are pretty good.
Here's the link: Education and Design Aids
Miller also has many free welding guides available for free download: https://www.millerwelds.com/resources
http://www.practicalmachinist.com/vb/general/could-i-get-education-why-their-several-types-arc-rod-about-2-mig-315939/
For starters, they are two different welding processes.
With MIG, the shield gas acts as the shield and flux.There is also flux coated wire which eliminates the use of the shield gas but then you have a flux that must be removed when the weld is complete. This usually just falls off if the weld process is setup correctly.
With stick, the electrode coating becomes the shield and flux.
With MIG, there are different wire alloys that should be matched to the base metal.
With stick, there are different flux coatings and filler alloys. These must be matched to the conditions, base metal, and weld position.
Stick welding is traditionally constant current. Mig is usually constant voltage. This cause differences in arc characteristics, weld flow, and base metal heat transfer.
With stick, you match the weld rod size to the heat you need.
With MIG, you can vary the voltage, current, and even the weld mode such as short circuit vs. spray transfer.
MIG wire dia. is somewhat limited by the gun and wire feeder. There are other sizes available than the standard .035 and .045.
For doing heavy weldments, stick and subarc are both popular processes as they have the ability to deposit much more weld material per minute or hour than a traditional MIG setup unless you go to multiple wire feeders.
This is just a very short summary. For more read a good welding book. There is a lot to this.
<>
The Lincoln Welding Foundation was set up to promote welding and has many helpful publications and DVDs. They sell them very cheaply, to promote welding of course, but they are not too biased towards their own products. I have bought many of them, they are pretty good.
Here's the link: Education and Design Aids
Miller also has many free welding guides available for free download: https://www.millerwelds.com/resources
- [machinist] Could I get a education on why their are several types of arc rod and about 2 mig?, Lawrence London, 02/08/2016
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