Fig. 1. Surface part

Fig. 2. Laser trajectory and interpolation points

Fig. 3. Simulated beam trajectories by CIMCO software

Fig. 4. Parts to be cladding with different defocus amounts. (a) Defocus is 5 mm; (b) defocus is 30 mm

Fig. 5. Cladding effect at defocus of 5 mm

Fig. 6. Cladding effect at defocus of 30 mm

Fig. 7. Low magnification SEM photos of four samples. (a) No. 1; (b) No. 2; (c) No. 3; (d) No. 4

Fig. 8. Microstructure of four samples. (a) No. 1; (b) No. 2; (c) No. 3; (d) No. 4

Fig. 9. Microhardness of cladding layer corresponding to different space angles

Fig. 10. Microhardness in different areas