What is Machine Welding?

What are the differences between Manual, Machine and Automated Welding you ask? Wonder now more, we’ve got the answers for you!

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According to the ASME B&PV Code, Canadian CSA W59 and CSA W47.1, there are four modes of welding process applications:

1. Manual Welding

Welding whereby the entire welding operation is performed and controlled by hand. Since the welder does all the work manually, it’s physically demanding and can lead to repetitive injuries.

2. Semi-Automatic Welding

Semi-automatic welding is manual welding with equipment that automatically controls one or more of the welding conditions. The welder manipulates the welding gun to create the weld while the electrode is automatically fed to the arc.

3. Machine (Mechanized) Welding

Welding with equipment which needs operator manipulation or adjustment in response to changes in welding condition. The torch, gun, or electrode holder is held by a mechanical device and the mechanical device that holds the gun, torch or electrode can be a robot (we’d suggest  the Spool Welding Robot – but that’s just us!).

4. Automated Welding

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Welding with equipment that needs only occasional or no observation of the weld, and no manual adjustment of equipment controls. For this type of welding, the welder’s activity is starting the machine and watching for defects or issues that need correction.

Bonus

5. Robotic Welding

Welding performed and controlled by robotic equipment which requires no involvement from the welder. The welder’s main function in robotic welding is to maintain quality control and fix any deviations or issues.

Interested in learning more about the differences between welding methods? Read the entire AWS article here

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Date

10-25-2007 17:03

I'm looking for some clarification on the types of welding procedures defined in D17.1.  I couldn't seem to find them within the document, but is the correct terminology MACHINE, SEMI-AUTOMATIC, and MANUAL?  What is the difference between machine and semi-auto?  There seems to be some difference in interpretation between what is what.  We have our own internal spec that calls out "mechanized, semi-auto, and manual" welds and our procedures need to be certified to that spec.  The welders need to be certd to 1595, of course now superseded by 17.1. 

Most the welding we do consists of using a stake welder from jetline and using their 9500 controller and whatnot.  However, the welder does not use AVC and he's constantly adjusting the current, voltage, speed, wire feed, etc as the torch travels down the part.  What would this type of welding be classified as?  machine?  Any help would be greatly appreciated.  Thanks

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