FIELD: machine building.
SUBSTANCE: table with blank is turned at angle of screw groove ascent. The blank is imparted with uniform progressive motion along its axis together with the machine table and with rotating motion corresponding to progressive transfer of the table. Complex rotating motion of the blank is obtained by summing uniform and alternate motions by specified law of rotation. Also, angle of table turn corresponds to the biggest twist of a screw groove, while gradually increasing radius of profile of the screw groove is produced by progressive transfer of a conic cutter along its axis.
EFFECT: expanded process functionality.
3 cl, 2 dwg
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