せん断加工における工具・材料間の摩擦係数に関する研究(機械要素,潤滑,工作,生産管理など)

概要

論文の詳細を見る
Determining method of a coefficient of friction (hereafter coefficient) between tool flank and sheared surface in shearing is proposed. In the method, measuring of vertical force and horizontal force are needed at a stage after separation process completed. Then, the coefficient is denned as the ratio of vertical force versus horizontal force. The influences of punch speed, kinematics viscosity of lubricating oil and clearance on the coefficient were investigated. By the method proposed, the coefficient of about 0.35 was obtained when ordinary lubricating oil is used. The coefficient between tool face and material surface is also determined from sliding friction test. The results of FEM analysis in consideration of the coefficients obtained by the method showed good agreement with the experimental results of the piercing of small holes.
社団法人日本機械学会の論文
2005-12-25