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Should the contact tip on a mig welder protrude out slightly past a fully seated nozzle? On my MM 211 it is about even. It doesnt seem to be a problem a problem unless I am welding out of position, then it is hard to keep an eye on proper stick out. Does anyone know if there are different nozzles for the M-100 gun, allowing more visibility of the contact tip ? A different question has to do with the Smith regulator/flow gauge. I have smith gauges on my torch set and they are very reliable. I notice on the MM that during the course of a welding session I have to keep an eye on the flow rate. I set it at 20 and it will vary from 25-18. In the scheme of things does it matter as long as its within a workable range or is it important to have it dialed more precisely?Anyway, thanks for any tips or comments, I very much enjoy the forum. The knowledge and experience within these walls certainly makes a wannabe limited in being able to post. Hope no one minds the questions. WS
Reply:Usually a tip is flush or slightly recessed. Managing stickout is part practice and part positioning. Hardest to see well is usually vertical up push, and I tend to watch slightly from the side if the weld is roughly at eye level. If it's below, I'll usually look down from the top. Overhead is easy as I usually weld almost directly at myself so I can look down the barrel as I weld..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Generally, as DSW said, slightly recessed works well but when doing my overhead cert, I found grinding the nozzle off so that the contact tip protruded about 1/8" provided improved accessibility for me. No issues with gas coverage with such small extension. Prolly just need more practice though.XMT304 (school)SP125+ (home)HF 4x6 BandsawGood judgement comes from experience and much of that comes from bad judgement. |
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发表于 2021-8-31 23:34:18