How to adjust all parameters when welding aluminum by wse200p argon arc welding machine? How thick is the tungsten electrode? How big is argon? The more detailed, the better. Thank you.

200 machine equipped with 1.6 tungsten needle is enough. The Al-W needle does not need to be sharpened (if it is argon arc welding, it needs to be sharpened). As for what tungsten needle to use, if it is not a demanding workpiece, both gray head and red head can be used. The green one is too expensive. Argon with different purity is usually turned on to 6-7 or you can adjust the gas according to whether the molten pool is black or not. If you think argon is not good, you can add a throttle valve to the gas meter. Welding current is distinguished according to your welder brand. If it is not a big brand, it usually has a virtual label. This thing depends on feeling.