10. Conclusion
We can make the following assessment:
aluminothermic welding has a number of weaknesses compared with electric welding;
forging the weld could eliminate the harmful effect of the basaltic structure;
the weld could be refined by vibration (perrier process in steel ingots) with a frequency of 10 Hz (figure 15) during solidification . This figure shows the range of vibration amplitudes and frequencies suitable for different metals. With regard to...
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