Repair of mechanical parts - welding repair of steel parts

Machine tool maintenance, CNC machine tool maintenance, equipment overhaul, steel parts welding repair

What are the contents of inspection and preparation before welding repair of steel parts in machine tool maintenance, CNC machine tool maintenance and equipment overhaul

The welding repair of steel parts has its inherent welding characteristics. For specific work, detailed pre welding inspection and preparation shall be carried out. Before welding, fully understand the working state of the workpiece, the cause of damage, the shape and size of the damaged part, and map and calculate the workpiece if necessary. The crack source must be found out in order to eradicate the root cause and repair the symptoms.

Preparation before welding is to degrease and rust the welding repair part in advance, and remove the fatigue layer to expose the metallic luster; Provide reliable shielding protection for non welding repair parts; The easily deformed workpieces shall be placed and paved, and some shall also adopt the immersion heat dissipation method; Arc striking plate shall be set for those with narrow release position and inconvenient arc striking; Open appropriate groove; Reasonable preheating of materials with high carbon equivalent, etc