Study on the Mechanism of Sparks Generated Mechanical Friction

Table 3

The average flying speed of sparks at different speeds.

Grinding wheel speed (m/s)	31.4	41.9	52.3	62.8	73.2
Highest average speed (m/s)	1.6	2.0	2.4	3.87	4.11
Lowest average speed (m/s)	0.7	0.8	1.0	1.05	1.23
Average speed (m/s)	1.20	1.30	1.66	1.93	2.35