Essential Skills and Competences: align components, apply arc welding techniques, apply precision metalworking techniques, ensure correct metal temperature, ensure equipment availability, handle fuels, interpret 2 D plans, interpret 3 D plans, join metals, monitor gauge, operate oxy-fuel welding torch, operate welding equipment, perform metal active gas welding, perform metal inert gas welding, perform test run, perform tungsten inert gas welding, recognise signs of corrosion, remove inadequate workpieces, remove processed workpiece, select filler metal, smooth burred surfaces, spot metal imperfections, troubleshoot, wear appropriate protective gear.