Prediction of workpiece elastic deflections under cutting forces in turning

Experimental Research on the Elastic Deformation Mode of S235JR Rolled Steel Fastened between the Centers of a Universal Lathe

“…The work pattern shown in figure 3 [1] is used to determine the processing error caused by the elastic deformation of the technological system when the blank is placed between centers (figure 13).…”

“…The Py force is usually used to determine system rigidity. The proper approach would be to calculate the resultant of the three forces first and then the rigidity [1].…”

Nonlinear analysis of chatter in turning process using dimensionless groups

“…(5), (17) and (19) in Eq. (2), equations of motion in three directions y, z and ϕ can be derived as:…”

“…Benardos et al considered a rigid tool and a flexible workpiece for analytical modeling of a turning process. The flexible workpiece which is supported only at one end undergoes elastic deformation reducing allowable depth of cut in the process [17]. Sekar et al [18] considered the effects of deflections of a tailstock-supported workpiece and presented a compliant 2DoF dynamic cutting force model by considering the relative motion of the workpiece with the cutting tool.…”

High-accuracy turning with slender boring bars

“…The dimensional variation in the process was reduced by optimizing eight different variables in the turning process. Benardos et al [5] studied the elastic deformation of the workpiece in turning and suggested methods for estimating errors in turning operations, based on an analytical model, and on artificial neural networks. Active error compensation was presented by Chiu and Chan [6] who suggested a combination of strain gauge sensors and a piezoelectric actuator.…”