A broken bolt from a Rolls Royce gas turbine engine with a size of m46. This was 150mm deep into the engine block and right next to the cylinder wall. Because we are specialised in spark erosion machinery and we do the job with a special electrode. Also we patented the electrodes, When we burn a special hole in the broken piece, after that we use a special tool and a torque multiplier to remove the remaining piece. And thus, this method is much faster and cheaper for the customer. Otherwise, the mechanics have to remove the entire engine block and to send to the workshop where the broken bolt will be removed with large milling machinery.
Removing bolts from a M46 gas turbine
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