No Unless you have a newer model welder that is CC & CV, and then they do not do aluminum unless you get into the high end inverter models. Wire welding uses the CV (constant Voltage) and tig is CC (constant current)
Mig (GMAW) has almost replaced Stick (SMAW) in industry. Small machines can weld thin materials and larger machines weld metals of unlimited thickness. Mig is easy to use and has less waste (no stubs) than stick. Flux core wire produces a slag covering but bare wire w/gas leaves a clean weld.
A weld symbol is the shape drawn on a Print to tell the welder: how to prepare a welding joint, what process can be used to weld (mig, tig, arc, etc) what filler rod to use, how wide and long the weld should be, how to deal with the weld after your done (grind flush, brush clean, or nothing) and a million other things.... Its a tool that design engineers use to communicate what the weld needs to be to meet their design specifications.
It depends on what you are welding. If you are doing welding on mild steel go with MIG welding; if it is aluminum or stainless steel then use TIG welding. TIG welding gives a nice looking finish. If you just want to get a decent look, then MIG is preferable and easy.
I don't see why not. If you can see well enough to use the equipment or handle OFC and Stick/MIG/TIG then you should be fine.
Depends on a lot of things. Slickest work, but most expensive - TIG. Cheapest - arc (stick) welder. Reasonably user friendly and inexpensive - wire-feed arc/ MIG welder.) Most versatile - Oxyacetylene. Oxy will give have the biggest heat affected zone and is the hardest to use (IMO). If your kart is really thin wall tubing you can forget about the stick welder and even the MIG will be quite tricky.
Is this a gasoline or diesel powered unit? If so the lag time between striking an arc and establishing an arc makes it difficult to use for TIG. If not, any DC supply can be set up for TIG. Not for aluminum... Check with your welding supplier.
Silicon is added to the tig rods in production. Use a gas weld rod which does not have the silicon and the weld will be full of porosity.
The best fix would be to weld it yes. To do a proper weld on aluminum you are going to want to only use a TIG welder. You can also have decent results with industrial J-B Weld. The area would need to be properly prepped and cleaned though for best results.
In order to weld pieces of 6mm steel you can use any type of welder. Depending on how strong and how pretty the weld needs to be will determine the type of welder you choose.
People may choose to use Youtube as a guide about a Miller TIG welder. Here video tutorials can come in very handy and give step by step instructions on how to use such a piece of machinery.
Yes you will not get a "good" weld and it will not be strong The filler electrode used by TIG welder is usually bare and need a shield gas to shield off the atmosphere. Without shield gas, air gets into the molten weld usually produce defects called porosity (air pocket). Your finished weld is defective may not meet the strength. Without a shielding gas you will need more power to establish an arc and the weld puddle will be extremely contaminated (oxidized). The electrode (tungsten) will also be contaminated. You will find the arc wandering all over the place. Use a stick welder instead!
Consumable electrodes actually form the filler metal of a weld. Stick and wire are examples of a consumable electrode. TIG on the other hand only produces the arc for the weld, and the filler metal is fed into it. The tungsten (the electrode) of a TIG torch does not enter the weld.