TY JOUR TI INVESTIGATION OF DEPENDENCE IMPACT OF TOOL GEOMETRICAL PARAMETERS AND CUTTING SPEED UPON SHAPING EFFORT AT HELICAL GROOVE CUTTING ON INTERNAL SURFACE OF CYLINDRICAL SHELL KW planning KW experiment KW simulator KW mandrel KW rod KW groove KW front clearance angle KW shaping JO Bulletin of Bryansk state technical university AU Kuc, V.V. AU Gridin, D.S. PY 2020 IS 2020 PB Bryansk State Technical University