Hey everyone,
I'm hoping for advice on what techniques I should use to weld a specific job. I've only been learning to weld over the past couple weeks which is going fine on a bench with gravity helping, but unfortunately my first important job will require a mix of uphills, overhead and awkward body positioning. Due to the job being on a 4WD chassis and difficult to reach, it must be done once, and done right.
The first step is to weld a 5mm plate to the original 3mm bracket (photos attached).
The second step will be welding additional 3mm supports between the 5mm plate and 3mm chassis.
I'm currently practicing for the first step. As you can hopefully tell from the photos, it's an upside down weld with an uphill angle. Access is quite limited from the sides (same as camera angles) and from underneath the vehicle.
I'm hoping for tips regarding heat/wire settings, directions, torch angle, single vs multiple pass, etc.. ? I'm using a Lincoln PowerMIG 180C with 0.8mm wire and Argon/CO2 gas. I also have 0.6mm wire available.
During practices last night I had terrible looking welds with molten welds falling to the floor. High heat/feed settings (for 5mm) seems to cause too much dropping. Low settings (for 2-3mm) seemed easier to control, but still not right. After watching some 4G videos online with large gaps between materials and multiple passes, I tried cutting a shallow slot ~1mm into the 5mm plate near the weld area, and applied two passes with 2.5-3mm settings. The result was suddenly perfect, but I couldn't replicate it afterwards!!! I suspect my biggest issue was pulling vs pushing, and general torch control, but not knowing the right techniques for this task isn't helping!
For anyone interested in the vehicle it's a supercharged v6 with loads of torque, low geared diffs, diff lockers, big wheels, etc. Plenty pics and videos online: http://ift.tt/1gRMIBw
I'm hoping for advice on what techniques I should use to weld a specific job. I've only been learning to weld over the past couple weeks which is going fine on a bench with gravity helping, but unfortunately my first important job will require a mix of uphills, overhead and awkward body positioning. Due to the job being on a 4WD chassis and difficult to reach, it must be done once, and done right.
The first step is to weld a 5mm plate to the original 3mm bracket (photos attached).
The second step will be welding additional 3mm supports between the 5mm plate and 3mm chassis.
I'm currently practicing for the first step. As you can hopefully tell from the photos, it's an upside down weld with an uphill angle. Access is quite limited from the sides (same as camera angles) and from underneath the vehicle.
I'm hoping for tips regarding heat/wire settings, directions, torch angle, single vs multiple pass, etc.. ? I'm using a Lincoln PowerMIG 180C with 0.8mm wire and Argon/CO2 gas. I also have 0.6mm wire available.
During practices last night I had terrible looking welds with molten welds falling to the floor. High heat/feed settings (for 5mm) seems to cause too much dropping. Low settings (for 2-3mm) seemed easier to control, but still not right. After watching some 4G videos online with large gaps between materials and multiple passes, I tried cutting a shallow slot ~1mm into the 5mm plate near the weld area, and applied two passes with 2.5-3mm settings. The result was suddenly perfect, but I couldn't replicate it afterwards!!! I suspect my biggest issue was pulling vs pushing, and general torch control, but not knowing the right techniques for this task isn't helping!
For anyone interested in the vehicle it's a supercharged v6 with loads of torque, low geared diffs, diff lockers, big wheels, etc. Plenty pics and videos online: http://ift.tt/1gRMIBw
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