Download The Delft Sand, Clay and Rock Cutting Model by Sape A. Miedema, This book provides an outline of cutting theories. It begins with a generic model, valid for every type of soil (sand, clay and rock), and continues with the specifics of dry sand, water-saturated sand, clay, atmospheric rock and hyperbaric rock. small blade angles and large blade angles are mentioned for every soil kind, and for every case thought-about the equations/model for cutting forces, power and specific energy are given. Download the pdf from below to explore all topics and start learning.