METHOD OF FINISHING CYLINDRICAL GEAR WHEELS Russian patent published in 1995 - IPC

FIELD: metal cutting. SUBSTANCE: method of finishing gear wheels in conditions of intermittent rolling out upon periodical division from one tooth to another by two disc tools, having initial profile angle, equal to zero or near zero, performing reciprocation motion according to an individual program and having axis, inclined one to another in a plane, normal to an axis of the wheel, being worked. Values of reverse strokes of the tools upon their reciprocation motion are being separately set for each tool according to a length of contact lines. These contact lines are formed at engagement between the gear wheel, being worked, and a toothed rack with an initial contour, identical to the initial finishing contour of the tool upon respective involute development angle at rolling out process. Values of forward strokes of the tools also at respective involute development angle upon rolling out process are being set more, than length values of the contact lines by an overrun value, being calculated according to a formula, given in a description of the invention. EFFECT: enhanced quality of gear wheels. 1 cl, 6 dwg