Analysis and Testing of Load Characteristics for Rotary-Percussive Drilling of Lunar Rock Simulant with a Lunar Regolith Coring Bit

Figure 11

Trends of the average impact-cutting load on the lunar rock simulant versus the percussion frequency and the cut depth.

(a) Cutting force

(b) Cutting pressure

(c) Cutting force

(d) Cutting pressure

(e) Cutting force

(f) Cutting pressure