چکیده مقاله
A system tor geometric and physical simulation of ball end milling process using solid modeling is presented in this paper A commercially available geometric engine is used to represent the cutting edge, cutter and updated part The ball end mill cutter modeled in this study is an insert type ball end mill and the cutting edge is generated by intersecting an inclined plane with the cutter ball nose The contact face between cutter and updated part is determined from the solid model of the updated part and cutter solid model To determine cutting edge engagement for each tool rotational step , the intersections between the cutting edge with boundary of the contact face are determined The engaged portion of the cutting edge for each tool rotational step is divided into small differential oblique cutting edge segments Friction shear angles and shear stresses are identified from orthogonal cutting data base available in the open literature For each tool rotational position, the cutting force components calculated by summing up the differential cutting forces The instantaneous dynamic chip thickness is computed by summing up the rigid chip thickness, the tool deflection and the undulations left from the previous tooth and the dynamic cutting forces are obtained For calculating the ploughing forces Wu's model is extended to the ball end milling process The total forces including the cutting and ploughing forces are applied to the structural vibratory model of the system and the dynamic deflections at the tool tip are predicted The developed system is verified experimentally for various uphill and downhill angles
نویسندگان
H Haghighat
Mechanical Engineering Department, Razi University, Kermanshah Iran
M. H. Sadeghi
Manufacturing Engineering Division Mechanical Engineering Department, Tarbiat Modarres University, Iran
A. Abdollab
Manufacturing Engineering Division, Mechanical Engineering Department, Amirlcabir University of Technology Tehran, lran
شیوه ارجاع
Haghighat, H and Sadeghi, M. H. and Abdollab, A.,1381,A solid modeler Based Ball-end Milling Process Simulation,05th Iranian Conference on Manufacturing Engineering,Tehran
ارائهشده در
مجموعه مقالات پنجمین کنفرانس ملی مهندسی ساخت و تولید28 بهمن 1381 · تهران