Tool Stiffness & Displacement Calculations By: Roger Cortesi rcortesi@mit.edu http://pergatory.mit.edu/rcortesi/ Precision Engineering Research Group Massachusetts Institute of Technology, Mechanical Engineering Department Phone: (617) 253-1953 Fax: (617) 258-6427 http://pergatory.mit.edu/ Room 3-470 77 Massachusetts Ave. Cambridge, MA 02139

Tool Cutting Force Estimates

Cutting Force Calculations For P, h, and w listed on the previous slide

Tool Deflection Calculation

Tool Deflection Plot

A FEA Check of the Inertia Estimate This FEA indicates that the tool has about 33% the cross sectional inertia of a solid rod the same diameter