METHOD FOR PLANING PRODUCTS Russian patent published in 2000 - IPC

FIELD: mechanical working of articles with complex profile of worked surface, for example metallographic forms in number program control planers. SUBSTANCE: method comprises steps of orienting lengthwise axis 1 of cutter 2 by angle equal or almost equal to 90 degrees relative to plane of coordinate axes X, Y; placing apex of cutter 2 in initial point of planing path 4 and orienting front surface 5 along line normal relative to path 4 in initial point; at working realizing (according to predetermined program) synchronous relative motion of worked article and cutter 2 along coordinate axes X, Y; performing such motion with possibility of providing resultant motion of cutter 2 along predetermined path 4 with curvilinear portions; at changing curvature radius of portions of path 4, varying three-dimensional position of front face of cutter 2 relative to its previous position in such a way that at passing any point of portion of path 4 with variable curvature radius front face 5 was normal relative to plane 6 that crosses plane of coordinate axes and is oriented in parallel with projection of vector of instantaneous relative velocity of cutter 2 in above mentioned point onto plane of coordinate axes. Such three-dimensional orientation of front face 5 of cutter 2 in any point of path 4 provides optimal planing conditions along the whole pass length due to constant spatial orientally of rear surfaces of cutter relative to planing face. EFFECT: enhanced strength of planing cutter, improved accuracy of planed article. 3 cl, 4 dwg