Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser

Table 1

Laser repairing processing parameters.

	Laser power (W)	Scan rate (mm/min)	Spot radius (mm)
1st; layer	𝑃1 = 2800 to 3200	𝑣1 = 360 to 540	𝑟1 = 3 to 4
2nd; layer	𝑃2 = 2800 to 3200	𝑣2=1.2×𝑣1	𝑟2=1.1×𝑟1