These are distinct pieces of equipment commonly found in fabrication shops, construction sites, and automotive repair facilities. One joins metals by creating a high-heat arc, melting and fusing the materials together, often with filler material. The other converts power into potential energy stored in pressurized air, which can then be released to power pneumatic tools or for other purposes.
The combined utility of these tools provides versatility and efficiency in various applications. The means for joining materials can be complemented by the use of air-powered tools for cutting, grinding, and finishing surfaces. Historically, reliance on manual methods slowed production; the introduction of powered equipment significantly accelerated processes and improved precision, changing industries.