MIG welding requires pre-weld clean-up due to electrode resistance to contaminants. Gun position and angle must be correct to prevent filler sagging. Travel angle should be 5-15 degrees for normal welding conditions. Speed affects weld bead shape and quality significantly
VRD reduces welder's open-circuit voltage to prevent electric shock. OCV is voltage between electrode holder and grounding clamp. Heavy-duty machines use up to 110V, VRD reduces to below 15V
Lack of fusion occurs when weld doesn't properly merge with base metal. Can be caused by improper welding techniques, incorrect torch angle, or inadequate heat. Poor preparation and large gaps in weld joint can lead to this defect
Weighs just 17 lb and features metal drive system. Operates on 110V/220V dual voltage with 35-120A power. Includes .8V and 1.0V rollers for gas welding. Comes with .8V wire and extra .8 and 1.0V tips
Equipment must be used by qualified personnel only. Machine operates in harsh environments with free air circulation. Maximum incline from horizontal is 15°. Temperature should not exceed 40°C