摘要:
A cutting insert assembly (40) for use in chipforming and material removal. The cutting insert assembly (40) includes a cutting insert body (190) that presents at least two discrete cutting locations (230, 232). The cutting insert body (190) contains a coolant entry passage (202) aligned with the pocket opening for coolant to flow through the coolant entry passage. The cutting insert body (190) has a rake surface (192) that contains at least two of the discrete depressions (230, 232) wherein each one of the discrete depressions corresponds to one of the cutting locations. The assembly (40) includes a diverter that is positioned adjacent to the cutting insert body (190) wherein the diverter (250) has a receiving opening aligned with the coolant entry passage (202) to receive coolant through the coolant entry passage.
摘要:
The present invention is directed to a shim (56) and a body (58). The shim comprises a base upper surface, an opposite lower positioning surface (65), two opposing long side surfaces (60) and two opposing short side surfaces (62) extending between the base upper surface and the lower positioning surface (65). The base upper surface (62) has a protrusion (64) formed thereon. The protrusion (64) has a first outer side wall (67) connected to a second outer side wall (68) and an inner wall (69) connected to the first and second outer side walls. The first outer wall extends from a first of the two opposing long side surfaces. The second outer side wall extends from a first of the two opposing short side surfaces and the first long side surface is adjacent to the first short side surface. The inner wall extends from the base upper surface.
摘要:
A clamping mechanism that prevents the shift and scattering of the cutting inserts due to centrifugal force and that prevents the generation of unwanted distortion and strain in the rotary tool body. The rotary cutting tool of the present invention has a plurality of cutting inserts 22 along the periphery of a cylindrical tool body 21. The cutting inserts 22 are securely attached to cartridges 23 by using attaching screws 24. The cartridges 23 are then attached to the tool body. Each of the cutting inserts is clamped such that a set screw 26 screwed into the corresponding slanted threaded hole 28 formed in the tool body 21 presses the cutting insert 22 at its surface portion located on the other side of the attaching screw 24 with respect to the cutting edge of the cutting insert 22.
摘要:
A cutting insert (1) for mounting on a milling cutter has a generally quadrangular shape with top (2) and bottom surfaces (4), a pair of opposite first side surfaces (6) intersecting the top surface at first cutting edges (10) and a pair of opposite second side surfaces (8) intersecting the top surface at second edges (12). Each second edge (12) has a front cutting portion (14) oriented substantially transversely to an adjacent first cutting edge (10) and meeting therewith via a cutting corner (16). Each of the first (6) and second (8) side surfaces has upper (17) and lower sections (18) adjacent respective top (2) and bottom (4) surfaces, which sections have leading portions (20) adjacent their associated cutting corner (16) and trailing portions (22) remote therefrom. The trailing portion (32) of the lower section (26) of each side surface (8) is at least slightly inwardly depressed relative to the leading portion (30) of the lower section (26) and is substantially inwardly depressed relative to the associated trailing portion (29) of the upper section (24) of the second side surface (8). The trailing portions of the lower and upper sections merge via a transition surface oriented transversely thereto.
摘要:
A cutting tool includes a polygonal cutter body and an end cutting insert for chipforming machining mounted in a serrated seat disposed at an axial end of the cutter body. A bottom surface of the insert has a plurality of parallel serrations meshing with corresponding serrations of the seat. The serrations extend transversely relative to the longitudinal axis for resisting axially rearward cutting forces applied to the insert. The seat is formed directly by the cutter body, or by a shim disposed beneath the insert. The shim is provided with a downward lip to transfer axial forces to the cutter body. The insert can be square or triangular, wherein the serrations are in the form of a plurality of sets of parallel serrations disposed adjacent respective cutting edges.