A tool designed for determining the appropriate electrical current (measured in amperes) for shielded metal arc welding (SMAW), often referred to as stick welding, simplifies the process of selecting optimal settings based on electrode type and material thickness. For instance, a specific electrode diameter and type, used on a particular metal thickness, will require a defined current range for effective welding.
Accurate current selection is crucial for achieving high-quality welds with proper penetration and minimal defects. Historically, welders relied on experience and charts to determine these settings. Modern tools offer a more precise and convenient method, contributing to improved weld quality, reduced material waste, and increased productivity. This precision minimizes common issues like burn-through, undercutting, and porosity, ultimately leading to stronger and more reliable welds.