Fig. 1. Model and printed physical component of additive component. (a) Model size; (b) designed model; (c) printed physical component

Fig. 2. Scanning path diagram

Fig. 3. Equipments used in this paper. (a) SLM printer; (b) industrial CT; (c) scanning electron microscope

Fig. 4. VGStudio fitting model

Fig. 5. Measured slope top angle γ for internal channel structure of TC4 member

Fig. 6. Statistical chart of slope top angle

Fig. 7. Schematic of subsidence of the suspension surface

Fig. 8. SEM morphologies of internal structures with different inclination angles. (a) 55°; (b) 50°; (c) 40°

Fig. 9. Fitting section of original model and scanning model obtained by PolyWorks. (a) Inclination angle is 40°; (b) inclination angle is 45°; (c) inclination angle is 50°; (d) inclination angle is 52.5°; (e) inclination angle is 55°

Fig. 10. θ-β¯ chart

Fig. 11. θ-σ chart

Fig. 12. Schematic of suspension error analysis of suspension surface when θ is less than 50°

Fig. 13. Schematic of suspension error analysis of suspension surface when θ is greater than 50°