Mathematical model for cutting force in ultrasonic-assisted milling of soda-lime glass

摘要: Ultrasonic-assisted milling (UAM) has an outstanding performance in machining hard and brittle materials, such as glass. The cutting force which been investigated both experimentally theoretically is the key factor that affects machined surface quality. This paper presents a mechanistic mathematical model for axial UAM of soda-lime based on process mechanism material removal can be used to predict without need performing actual experiments. proposed taking into consideration two different mechanisms, directly affect final removed volume material. first ductile described by where plastic flow, while other due crack formation cause fracture. In present models, effects rotation ultrasonic vibration motion tool were taken through their indentation volume, each diamond grain, workpiece. development started analysis behaviour single grain obtaining individual first. total then was derived summing up forces caused all grains part process. From developed models results, trends predicted results from agree well with determined at low feed rates depths cut. However, high These explain mode occurring Then it changes further increasing rate depth