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Recently trying to tune up my MIG welding, I started looking into everything... Wire speed settings and voltage settings... The HH150 only has 4-tap settings, 230V 30-175 amps... .035" wire, C25 gas..Okay... for 1/4" steel, the general guideline appears to be:1 amp/.001" thickness; .035" wire factor = 1.6 Material 1/4" .... .25/.001 = 250A Wire .035" .... 1.6 x 250 = 400IPM (The Miller calculator indicates for short circuit 360-380ipm and spray 400-420ipm)My dilemma is measuring my wire feed speeds, each tap has a different speed rangesStarting speeds with the dial at "0" are #1=140ipm, #2=220ipm, #3=300ipm and #4=400ipmThe info plate on the HH150 for 1/4" recommends tap #4 wire feed 4-5 for .035 wireI measured #4 at speed 4 = 640ipmThe big question here is Does the wire feed speed change once current is sensed?For my skill level, I seemed to dial in #4 at a wire speed setting around 2 which correlates to a free wire speed around 520ipmWhat am I missing here GlenMiller Dynasty 200DX - Millermatic 350P - Hypertherm Powermax 45Want to sell!! - Hobart Handler 150
Reply:You're not welding 1/4" plate at 250 amps...120 - 180 maybe not 250. You want better welding switch to 75 argon 25 co2.. As for settings no one here can give you set settings to run this at even that miller calculator is no good, every machine is different. My suggestion is if you want to weld better practice more and put up photos on here to have people critique your work...Im running nothing but flux core at work and every machine is difference each time I go to a new machine I grab a scrap of steel to set my heat on. What I guess im saying is worry more about what the weld is telling you than the actual settings.Journeyman / Red Seal Welder (What a useless test)Miller CST 280Miller XMT 350Miller 12vs XtremeEvolution Evo 28 mag drillEvolution 380 Dry Cut saw
Reply:I know I'm not at 250A ... As stated the machine is 175A max and I am using 75/25 (C25)If the general rule of thumb are the calculations I mentioned before..... lets say 1/4" steel, w/.035 and C25 is done somewhere between 360-420ipm and maybe 18-25V .... my measurement of wire speed is way off unless the machine slows down while welding. Guess I'll have to mark the spool and check rotation while welding and no-load.GlenMiller Dynasty 200DX - Millermatic 350P - Hypertherm Powermax 45Want to sell!! - Hobart Handler 150
Reply:Your not understanding what im saying. Every machine is different forget about the "general rule of thumb" lol No real welder uses the "general rule of thumb" he just sets the welder til it welds right and goes with it. Forget learning to set the machine to a certain setting you like and instead learn to weld by feel. What happens when you have to switch machines or buy a new one ?And no one said whether you were or not at 250 amps just that the logic that it would take 250 amps to weld 1/4 inch material is off.Welding isn't that complicated its all about watching and observing your puddle, making changes to settings and or techniques and taking note to how they affect the puddle and weld, Ultimately the numbers mean nothing they are only there to show that you are going up or down in heat.Journeyman / Red Seal Welder (What a useless test)Miller CST 280Miller XMT 350Miller 12vs XtremeEvolution Evo 28 mag drillEvolution 380 Dry Cut saw
Reply:After looking at the wiring diagram and performance charts, I now understand more about the wire feed characteristics.Each TAP setting changes the "Open Voltage" the voltage coming from the transformer is also the source for the feed motor. So TAP #4 = 29V open, then @100A = ~22V and @160A = ~19V ... as the voltage drops, the wire speed slows...As current/voltage changes with arc length, there is a slight change in wire feed speed at the same time .... my guess is this will help stabilize the arc...This explains a lot! GlenMiller Dynasty 200DX - Millermatic 350P - Hypertherm Powermax 45Want to sell!! - Hobart Handler 150 |
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发表于 2021-8-31 22:20:13