wide etching on aluminum

[johnson697]

There is no magic setting to achieve what you want. It is a combination of techniques and wave shape that determines how that happens. It helps to know the theory behind what is happening during the weld process, as it's much faster than you can see. There are many good books on metallurgy and welding, and also a ton of white papers on the Lincoln Electric site. Just search for "cathodic etching" to learn about what is happening, and why. Once you know what all the controls of each welding machine do to the wave shape and how that impacts what you are after, you will be able to tailor the machine settings to your technique and the job, to achieve the best appearance, strength and corrosion resistance of your welds. Some people pick this up by experience, some by researching and reading, and some need to be taught. Everyone learns differently and I'm sure you know what works best for you.

This is kind of respone i was looking for ,ty.