What is checksum and how to calculate and use checksum values to verify data and file integrity Checksum is a calculated value that is used to determine the integrity of data. Checksum serves as a unique identifier for the data (a file, a text string, or a hexadecimal string). If the data changes then so does the checksum value.
First off, let's define the TIG welding process and provide some history. TIG stands for Tungsten Inert Gas and is technically called Gas Tungsten Arc Welding or GTAW. The process uses a non-consumable tungsten electrode that delivers the current to the welding arc. The tungsten and weld puddle are protected and cooled with an inert gas, typically argon. TIG welding is similar to oxy-acetylene welding in that you use a filler material for build-up or reinforcement.
TIG Calculator. The TIG calculator is intended as a print out reference for DIY TIG welders but is only intended as a starting point. Once you get the hang of TIG welding you might find you prefer to weld at higher or lower amps depending on technique and travel speed. Complete beginners might prefer to run maybe 10% lower amps to compensate for slower speed, but if you find you need to reduce amps much more then your arc gap is probably too long.