SU1194598A1 - Method of milling slots in thin-wall work - Google Patents

Abstract

THE METHOD FOR MILLING THE EMPHASIS IN THIN-WALLS, in which the end mill is brought to the side surface of the workpiece and the groove is milled, moving the mill in directions perpendicular to the specified surface for a distance equal to half the thickness of the workpiece, then removed from the body of the latter and in accelerated feed move to the side surface of the workpiece opposite to the first one, after which the cutter is moved perpendicularly to this surface, it is distinguished by the fact that, with a chain of improving the quality of processing, moving cutters perpendicular to the opposite surface of the workpiece are made to a depth equal to half the thickness of the workpiece, after which the final machining of the groove is performed, for which a mill is used with a diameter less than the width of the groove, displacing it relative to the axis of symmetry of the groove, and one side of the groove and then another (by counter milling.

Description

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FIG. This invention relates to a process for treating open grooves in thin walls of body parts with end mills on walls with numerical program control. The purpose of the invention is to improve the quality of processing by reducing the bending of the groove walls. This is achieved by the fact that the final milling is performed by the counter milling method, thereby eliminating the impact at the beginning of the contact of the cutting edge of the tool and the metal, which occurs during milling, since here the thickness of the cut varies from maximum to minimum. Fig. 1 shows a scheme for milling a groove, Stage I: in Fig. 2 - the same, Stage II: in Fig. 3 - the same, Shch this in Fig. 4 - the same, IV, stage: in Fig. 3, the processed groove. The entire groove milling process takes place in four stages. 8. The first stage. The end milling cutter is applied to the side surface of the workpiece and the groove is milled, moving the cutter in the direction perpendicular to the specified surface at a distance equal to half the thickness of the workpiece. And stage. At the accelerated presentation, the billet is moved to the side surface of the workpiece opposite to the first one, after which the per-cutter is produced perpendicular to this surface to a depth equal to half the thickness of the workpiece. W stage. Finishing of the groove is performed, for which a mill is used with a diameter of few grooves of the groove, displacing it with respect to the axis of symmetry of the groove and milling cutter on one side of the groove by counter milling. Stage 1 A similar body made the milling of the other side of the groove.

Claims (1)

MILLING METHOD In THIN-WALLED Billets, in which the end mill is flowered to the side surface of the workpiece and the groove is milled, moving the mill in directions perpendicular to the indicated surface by a distance equal to half the thickness of the workpiece, then it is removed from the body of the latter and moved to the side surface of the workpiece opposite to the first , after which the cutter is moved perpendicular to this surface, distinguished by the fact that, in order to improve the quality of processing, the cutter is moved perpendicular to the opposite the surface of the workpiece is made to a depth equal to half the thickness of the workpiece, after which the final groove is machined, for which a mill with a diameter smaller than the groove width is used, shifting it relative to the axis of symmetry of the groove, milled one side of the groove first and then the other counter milling. SU .. „1194598