Drilling resistance measurement and the effect of shaft friction – using feed force information for improving decay identification on hard tropical wood

Drilling resistance measurement and the effect of shaft friction – using feed force information for improving decay identification on hard tropical wood

Drilling resistance profile of a Tipuana stem disc with central decay. Drilling curve = grey; feed curve = black  

資料來源:

https://www.researchgate.net/publication/308904209_Drilling_resistance_measurement_and_the_effect_of_shaft_friction_-_using_feed_force_information_for_improving_decay_identification_on_hard_tropical_wood