Sandvik metric drilling equations
Metric Drilling Parameters
Calculate kinematics, feed force, material-removal rate, net cutting power and torque from one published metric formula set. Use toolmaker/workpiece-specific inputs; outputs are planning estimates.
Planning result
Sandvik Coromant metric drilling formula sheet defines these inputs and output units. Sandvik’s spetsiifilise lõikejõu juhised selgitab, et kc changes with material, rake and chip thickness.
Kennametal’s tool-specific drilling calculator likewise describes its outputs as theoretical planning values whose actual results vary. This page does not claim ISO compliance or machine/tool capacity approval.
Parandused endise kalkulaatori kohta: net power was 1000× too high because N·mm-to-N·m and W-to-kW conversions were incomplete. Feed force omitted sinκr and a factor 1/2 from Dc/2. Unsourced cutting presets, kc table and generic FAQ ranges were removed.
