Defect Repair Machine
Electric Spark Welding (EDM)
Electric Spark Welding Machine
unimportant rough surfaces of iron castings, after
the permission of clients, we can use this electric
spark welding machine to weld the small casting
defects, such as sand holes, air holes and
The machined surface after welding repair
welding repair will not affect further machining.
After machining, the welded surface is very smooth,
and only leave a blur welding marks. This welding
method is much more better than traditional
electric-arc welding repair to iron castings.
However, normally, welding repair is not allowable
for pressure-bearing surfaces.