Milling tool

Through the integrated load-bearing area and chip groove design, combined with chamfering and coolant reflection angle, the assembly clearance problem caused by chip guide covers in cutting tools is solved, achieving a more efficient and economical cutting process.

CN120303076APending Publication Date: 2025-07-11KOMET GROUP GMBH
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Patent Information

Application Number
CN202380083487.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-12-07
Filing Date
2023-11-17
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

In existing cutting tools, the chip guide cover can easily lead to assembly clearance, resulting in damage to the lateral force loading of cutting head screws, and increases assembly complexity and cost.

Method used

The integrated load-bearing area design is adopted, combining the chip groove and the front wall to prevent chip discharge, and chip guidance and suction are achieved through chamfering and coolant reflection angle to avoid chip clogging.

Benefits of technology

Improves the reliability and speed of cutting tools, reduces production costs and simplifies the assembly process.

✦ Generated by Eureka AI based on patent content.

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Abstract

Milling tool (1) comprising a front side (2), a plurality of cutting elements (3), and an integral carrier region (4), each cutting element (3) being fixedly mounted on the carrier region (4) and being arranged and configured for cutting at the front, a plurality of flutes (6) being concavely provided on the carrier region (4), each chip flute (6) remains open at the front in each case by an inlet gap (7) with respect to one of the cutting elements (3) and is covered at the front by a front wall (8) which integrally continues the carrier region (4).
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Description

Technical Field

[0001] The present invention relates to a milling tool. Background Art

[0002] In the cutting tool proposed in DE102016116466A1, a chip guide cover is releasably held on a cutting head.

[0003] The chip guide cover described in DE102016116466A1 is used to prevent the removed chips from falling onto the workpiece to be machined, but forms an assembly gap relative to the cutting head, resulting in lateral force loading on the screw holding the cutting head, and is still a component that must be additionally installed. The chips very easily get stuck tightly in the assembly gap, thus damaging the workpiece to be machined in the stuck state. At too high a speed of the chip guide cover, the fixing screw is excessively laterally loaded by the centrifugal force generated therein and is thus damaged. Since the chip guide cover is an additional component, the assembly of the cutting tool is usually longer, thus becoming more expensive and more intensive in terms of maintenance. Summary of the Invention

[0004] The object of the present invention is to provide a milling tool that more reliably prevents the removed chips from falling onto the workpiece to be machined, while ensuring prevention of chip jamming, can be driven at a higher speed, and can be produced more economically.

[0005] The technical object of the present invention is achieved by the subject matter of claim 1, and advantageous further improvements of the present invention can be obtained from the dependent claims that can be freely combined with each other.

[0006] The milling tool has a front side, a plurality of cutting elements, and an integral bearing area, wherein each cutting element is fixed to the bearing area and is arranged and configured for cutting at the front, and wherein a plurality of chip grooves are present in the bearing area, the plurality of chip grooves opening at the front due to an inlet gap relative to one of the cutting elements and being covered at the front by a front wall portion that integrally continues the bearing area.

[0007] By the bearing area being integral, it is held together structurally without material seams and without any form-fitting connection, for example, in the case of a material block where chip grooves are milled and / or drilled. Thus, in the correct technical drawing, a uniform hatching is assigned to the bearing area in any cross-section.

[0008] The term "integrally continuous" should be understood to mean that the front wall portion is constructed without material seams and without a form-fitting connection over the bearing area. In the correct technical drawing, the front wall portion and the bearing area have the same hatching in any cross-section.

[0009] The front wall portion is formed by a chip groove in the front undercut bearing area.

[0010] The inlet gap is formed by a chip groove in the front penetration bearing area.

[0011] The chip groove receives chips generated by the cutting element at the front during cutting. The front wall portion prevents these chips from being discharged from the chip groove at the front, especially when the milling tool surface mills a low base area, from where the discharged chips are difficult to remove from this area, and even when the cutting tool has stopped rotating, that is, there is no longer possible chip discharge supported by centrifugal force in the chip groove.

[0012] By fixing each cutting element to the bearing area and arranging and configured for cutting at the front, each cutting element protrudes partially from the front side so as to actively cut at the front during the milling process.

[0013] The milling tool extends from the axis of rotation and, since it is a milling tool, is configured to cut relative to a forward direction transverse to the axis of rotation and simultaneously relative to another forward direction parallel to the axis of rotation.

[0014] According to an advantageous further refinement, at least one chip groove is covered transversely to the inlet gap, which inlet gap opens the at least one chip groove to a greater extent than the width of the inlet gap. The corresponding width of the inlet gap is measured at the front between the two gap edges of the same chip groove, one of the gap edges being formed by the front cutting edge of one of the cutting elements and the other gap edge being formed by the leading edge of one of the front wall portions.

[0015] By covering the at least one chip groove at the front by one of the front wall portions to a greater extent than the width of the inlet gap, the bearing area is undercut by the chip groove to a particularly large extent at the front, thereby preventing to a particularly large extent the chips received by the chip groove from being discharged from the front. Preferably, each chip groove is covered at the front by one of the front wall portions to a greater extent than the width of the inlet gap that opens it.

[0016] According to an advantageous further refinement, at least one of the front wall portions is chamfered at the side of the chip groove covered by it. By chamfering the front wall portion in this way, the chips generated by the corresponding cutting element are introduced into the chip groove in a guided manner. Preferably, each front wall portion is chamfered at the side of the chip groove covered by it.

[0017] According to an advantageous further refinement, the chamfered front wall portion is chamfered at an internal chamfer angle in the range of 10° to 75°. The range from 10° to 75° is optimal for the sufficient wall thickness of the front wall portion and at the same time maintaining the advantageous chip guidance provided by the chamfer.

[0018] According to an advantageous further refinement, the load-bearing region is undercut in a recessed manner at the front side by means of at least one chip groove. Thus, the chip groove can be produced by milling and / or drilling, wherein the chip guidance of the corresponding front wall part is improved at the same time. Preferably, the load-bearing region is undercut in a recessed manner at the front side by means of each chip groove.

[0019] According to an advantageous further refinement, the load-bearing region has at least one coolant channel which is enclosed integrally by the load-bearing region at the front and opens out in the region of one of the chip grooves. Thus, the coolant channel can be produced, for example, by means of a hole in the load-bearing region and ensures, in the overflow state, that coolant overflows into the chip space recess, the coolant channel opening out in the region of the chip space recess. Preferably, the load-bearing region has a plurality of coolant channels which are enclosed integrally by the load-bearing region at the front and open out in the region of one of the chip grooves.

[0020] According to an advantageous further refinement, at least one cutting element is positioned obliquely in the axially rearward direction for reflecting coolant. Thus, if coolant from the coolant channel impinges on the cutting element, the coolant is reflected away from the front side and into the corresponding chip groove, thereby creating a suction effect for sucking the chips into the chip groove.

[0021] At least one cutting element is positioned obliquely in the axially rearward direction so as to reflect coolant at a coolant reflection angle by means of the cutting element, the cutting element being positioned at the side of its associated chip groove, the coolant reflection angle being defined, in a direction of view perpendicular to the rotational axis of the milling tool, by an angled member arranged parallel to the rotational axis and an angled member following the axial extension of the cutting element at the side of the chip groove, wherein the angled member following the axial extension of the cutting element guides the other angled member in the rotationally driven state of the milling tool. Preferably, the coolant reflection angle is in the range from 10° to 25°, since this is optimal for the suction effect by means of the relatively large negative pressure established in the chip groove associated with the cutting element.

[0022] The angled member of the coolant reflection angle following the axial extent of the cutting element also follows the axial extent of the cutting element, since the angled member follows the axial extent of the plate seat in which the cutting element is fixed.

[0023] In the case where at least one cutting element has a circumferential cutting edge, the angled member of the coolant reflection angle following the axial extent of the cutting element follows the circumferential cutting edge in a direction of view perpendicular to the rotational axis.

[0024] Preferably, each cutting element is positioned obliquely in the axially rearward direction for reflecting coolant.

[0025] According to a further advantageous refinement, at least one chip groove terminates in an uncovered state opposite the front side. In the rotationally driven state, the chips are thrown out of the chip groove covered in this way, thus preventing chip jamming. Preferably, each chip groove terminates in an uncovered state opposite the front side. Furthermore, if at least one cutting element is positioned inclined in the axially rearward direction for deflecting coolant and is associated with the chip groove not covered in this way, the suction effect is increased.

[0026] According to a further advantageous refinement, at least one chip groove is not covered at least circumferentially. The chip groove not covered in this way accommodates the chips produced circumferentially, can be emptied particularly simply, and can also be manufactured inexpensively by milling. The term "circumferentially" is to be understood as meaning that the milling tool has a circumferential side surrounding the milling tool, for example, a cylindrical covering surrounds a cylindrical member. Preferably, each chip groove is not covered at its periphery.

[0027] According to a further advantageous refinement, at least one cutting element is releasably fixed to the bearing area in a reversible manner by means of a clamping element. The cutting element fixed in a releasable and reversible manner can be changed in a particularly simple way. The clamping element can be, for example, a screw engaging in a thread of the carrier member. Preferably, each cutting element is releasably fixed to the bearing area in a reversible manner by means of a clamping element.

[0028] According to a further advantageous refinement, the clamping element is inserted into the bearing area transversely to the longitudinal extension of the milling cutter. Thereby, the cutting element is attached to the bearing area in a particularly stable manner against centrifugal forces in a reliable way. Preferably, each clamping element is inserted into the bearing area transversely to the longitudinal extension of the milling tool.

[0029] According to a further advantageous refinement, at least one cutting element has a cutting edge carrier and a cutting edge member carried by the cutting edge carrier in a material-bonded manner. Thereby, the cutting element can be replaced more easily and can be adjusted more precisely. The cutting edge member can be formed of hard metal (cemented carbide), and the cutting edge carrier can be formed of a different material in this regard. Preferably, each cutting element has a cutting edge carrier and a cutting edge member carried by the cutting edge carrier in a material-bonded manner.

[0030] According to a further advantageous refinement, at least one cutting element is further arranged and configured for circumferential cutting. Thus, the cutting element performs two cutting functions, thereby reducing the number of cutting elements required for circumferential cutting. Preferably, each cutting element is also arranged and configured for circumferential cutting.

[0031] According to a further advantageous refinement, the milling tool has at least five cutting elements and at least five chip grooves, wherein each cutting element is also arranged and configured for circumferential cutting. Thereby, the cutting volume is increased to such an extent that the surface milling of the engine block becomes particularly economical.

[0032] According to a further advantageous refinement, the bearing area has a plurality of webs, in each of which a plate seat is formed, wherein each front wall part integrally continues one of the webs in the circumferential direction opposite to each plate seat. Thus, in the state where the cutting tool rotates in an active cutting manner, the plate seat is leading relative to each web, and the front wall part that integrally continues it is trailing. By each front wall part integrally continuing one of the webs in the circumferential direction opposite to each plate seat, no assembly gap is formed between the plate seat and the front wall part at the same web, that is, different from the chip guiding cover, which must be positioned below a radially extending assembly gap relative to each cutting element to avoid damaging the cutting element. Description of the Drawings

[0033] Other advantages and advantageous features of the present invention will be understood from the following description of exemplary embodiments with reference to the drawings, wherein:

[0034] Figure 1 : shows a perspective view of the milling tool;

[0035] Figure 2 : shows the milling tool with a forward viewing direction;

[0036] Figure 3 : shows an enlarged detail of the milling cutter;

[0037] Figure 4 : shows another enlarged detail of the milling cutter;

[0038] Figure 5 : shows the milling cutter along Figure 2 the cross-section taken along the cutting plane A-A in

[0039] Figure 6 : shows the milling cutter along Figure 2 the cross-section taken along the cutting plane B-B in

[0040] Figure 7 : shows another perspective view of the milling tool with a removed coolant guiding cover;

[0041] Figure 8 : shows an enlarged view of the plate seat of the milling tool;

[0042] Figure 9 : shows another enlarged view of the plate seat of the milling tool. Detailed Description of the Invention

[0043] Figures 1 to 9 The milling cutter 1 is shown, which is configured to be rotatably driven about a rotational axis 1a in a rotational direction 1b and is used for face milling in an active cutting manner and has an advancing movement perpendicular to the rotational axis 1a.

[0044] The milling cutter 1 has a front side 2, a plurality of cutting elements 3, and an integral carrier region 4, and the carrier region 4 is produced by subtractive milling from a steel block.

[0045] Figure 1 The milling cutter 1 is shown in a perspective view. Figure 2 The milling cutter 1 is shown in a viewing direction parallel to the rotational axis 1a and facing the front side 2. Figure 3 Shown is according to Figure 1 an enlarged detail of the milling cutter 1 in the region of one of the cutting elements 3 in the perspective view of Figure 4 Shown is according to Figure 2 a partially transparent view of an enlarged detail of the milling cutter 1 in the region of one of the cutting elements 3 in the front view of Figure 5 Shown is according to Figure 2 a section through the carrier region 4 along the section line A - A of Figure 6 Shown is according to Figure 2 a section through the carrier region 4 along the section line B - B of Figure 7 A perspective view of the milling cutter 1 with a removed coolant guide cover 15 is shown. Figure 8 The seat of the milling cutter 1 is shown in detail. Figure 9 The seat according to another illustration is shown in detail.

[0046] Figure 1 and Figure 2 It is shown particularly clearly that the carrier region 4 has a plurality of seats 4a, and one of the cutting elements 3 is releasably fixed in a reversible manner by a clamping screw 5; for the sake of clarity, only one of the cutting elements 3 is shown in specific terms, but it is disclosed that one of the cutting elements 3 is fixed in each seat 4a. The clamping screws 5 are each screwed radially into the carrier region 4 with respect to the rotational axis 1a.

[0047] As Figure 9 shown in detail, each seat 4a has an adjacent face 4b tangential to the rotational direction 1b, a front adjacent face 4c, an adjacent face 4d radial with respect to the rotational direction, a circular edge 4e between the adjacent faces 4b and 4d, and a circular edge 4f between the adjacent faces 4c and 4d. The tangential adjacent faces 4b are each bounded in the rotational direction 1b by a seat transition edge 4g.

[0048] As Figure 2The number of the shown seat plates 4a and thus the same number of cutting elements 3 can be varied according to a predetermined circle diameter of rotation, but should preferably be at least five, as this is the minimum number suitable for the surface milling of a conventional engine block.

[0049] Figure 3 and Figure 4 It is particularly clearly shown that each cutting element 3 has a cutting edge carrier 3a and a cutting edge member 3b, which is fixed to the cutting edge carrier 3a in a material-bonded manner and is made of a hard metal (cemented carbide). Each cutting edge carrier 3a contacts the adjacent surfaces 4b, 4c and 4d of its seat plate 4a in a planar manner. The cutting edge member 3b has a front cutting edge 3c protruding beyond the front side 2 and a circumferential cutting edge 3d protruding radially beyond the bearing area 4 with respect to the axis of rotation 1a. Thus, the cutting elements 3 are constructed and arranged to cut respectively at the front and at the periphery.

[0050] Figure 1 It is shown that a plurality of elongated chip grooves 6 are milled in the bearing area 4, that is to say, these chip grooves are recessed into the bearing area. The chip grooves 6 penetrate the front side 2 partially at the front, so as to form an inlet gap 7 at the front with respect to one of the cutting elements 3, as is shown particularly in Figure 4 the partially transparent illustration. For the sake of clarity, only one of these chip grooves is denoted as 6 in the figure.

[0051] As a result of the partially transparent illustration, Figure 4 each chip groove 6 is shown by way of example, which chip groove undercuts the bearing area 4 at the front, thus forming a plurality of front wall portions 8 which continue the bearing area 4 as a whole and thus partially cover one of the chip grooves 6 at the front, so as to prevent the chips received by the chip grooves 6 from discharging from the inlet gap 7 at the front. Each front wall portion 8 has a front edge 8a at the front.

[0052] In Figure 4 the maximum outer circumference 6a of a chip groove 6 is shown in the viewing direction parallel to the axis of rotation 1a and towards the front side, which outer circumference is not covered by a cutting element 3 at the front. In the non-transparent illustration, the outer circumference 6a will not be visible in the front view according to Figure 4 the front view.

[0053] Based on the extension of the outer circumference 6a, it can be seen that the chip groove 6 undercuts the bearing area 4 so as to follow the direction of rotation 1b opposite to the front cutting edge 3c and also in the radial direction inwards, that is to say, when viewed together with the seat plate 4a enlarged in Figure 1 the undercut is at the radial rear of the adjacent surface 4b.

[0054] Thus, the front wall portion 8 covers the chip groove 6 radially inwardly with respect to the rotational direction 1b, partially opposite the cutting element 3, and covers the chip groove partially with respect to the rotational direction 1b such that the chip groove 6 is also covered radially rearward of the seat 4a.

[0055] Figure 4 All the inlet clearances 7 are also shown by way of example, the inlet clearances 7 being formed at the front by the spacing from the front cutting edge 3c and the leading edge 8a. When observing the front side 2, the front clearance width 7a is measured as the spacing between the linearly extrapolated line 30d of the front cutting edge 3c and a measuring line 8b which is displaced parallel thereto and which first contacts the leading edge 8a with such a displacement, where the clearance width 7a is the spacing between the extrapolated line 30d and the measuring line 8b measured perpendicular to the extrapolated line 30d.

[0056] Similar to the measurement of the clearance width 7a starting from the leading edge 8a, the circumferential depth 8c measured with respect to the rotational direction 1b is associated with the front wall portion 8. When observing the front side 2, the circumferential depth 8c is measured as the spacing between the measuring line 8b and another measuring line 8d which is displaced parallel thereto and which finally contacts the outer circumference 6a, where the circumferential depth 8c is the spacing between the measuring line 8b and the additional measuring line 8d measured perpendicular to the measuring line 8b.

[0057] Figure 4 Each chip groove 6 is shown by way of example, which is covered by the front wall portion 8 transversely to the inlet clearance 7 to a greater extent than the width of the inlet clearance 7, and the circumferential depth 8c is greater than the clearance width 7a.

[0058] Figure 1 It is shown that when observing in a direction perpendicular to the rotational axis 1a, each front wall portion 8 is chamfered with an internal chamfer angle 10, the internal chamfer angle 10 being in the range of 10° to 75°. Each front wall portion 8 is chamfered in a concave manner on the side of the chip groove 6 covered by it in the observation direction perpendicular to the rotational axis 1a, outside the position where it is chamfered with the internal chamfer 10, that is to say with a greater spacing from the corresponding inlet clearance 7 in the rotational direction 1b.

[0059] Figure 1 It is also shown that, opposite the front side 2, each chip groove 6 is formed in a non-covered manner with respect to the free chip outlet and with respect to its inlet clearance 7, which inlet clearance is Figure 4 shown particularly clearly in, and thus terminates in a trailing manner, where the term "trailing" relates to the rotation of the milling tool 1 in the rotational direction 1b such that each chip groove 6 conveys the chips received by it away from the front side 2 under the action of the centrifugal force.

[0060] Figure 1It is also shown that the load-bearing area 4 has a plurality of webs 11 corresponding to the number of the seat plates 4, which are formed by a chip groove 6 and a seat plate 4; for the sake of clarity, only one web is labeled as 11.

[0061] Therefore, a seat plate 4 is formed on each web 11, and a front wall portion 8 is integrally and continuously opposite in the circumferential direction to the web 11. When observing the front side 2, the webs 11 and the chip grooves 6 are alternately arranged in the rotational direction 1b.

[0062] As Figure 3 and Figure 8 shown particularly clearly, a coolant channel 12 opens directly below the corresponding front wall portion 8 in each chip groove 6. The coolant channel 12 extends perpendicular to the rotational axis 1a in the load-bearing area 4 such that a coolant jet impinges on one of the cutting elements 3 and, due to the inclined positioning of the seat plate 4a relative to the rotational axis 1a, is axially reflected backward away from the front side 2a, so that the chips introduced into the corresponding inlet gap 7 are axially sucked backward away from the front side. The corresponding suction effect is enhanced by the fact that the chip groove 6 terminates in an uncovered state opposite to the front side.

[0063] The cutting elements 3 are inclinedly positioned on one side of their associated chip grooves 6 by extending at the coolant reflection angle 40 shown in Figure 8 where the coolant reflection angle 40 is measured in the observation direction perpendicular to the rotational axis 1a and is defined by an angled member 40a parallel to the rotational axis 1a and an angled member 40b following the axial extent of the cutting element 3 on one side of the chip groove 6, and measured in such a way that the angle is in the range from 10° to 25°, where the angled member 40b is arranged predominantly to rotate relative to the angled member 40a in the rotational direction 1b. In Figure 8 the coolant reflection angle 40 is, for example, 14°.

[0064] By making the coolant reflection angle 40 in the range from 10° to 25°, an optimal reflection of the coolant discharged from the corresponding coolant channel 12 for the said suction effect is achieved at the cutting element 3.

[0065] The angled member 40b follows one of the circumferential cutting edges 3d in the observation direction perpendicular to the rotational axis 1a and also follows the axial extension of the seat plate 4a.

[0066] The chip groove 6 extends at a chip groove angle 60, which is measured similarly to the coolant reflection angle 40 and has the same numerical magnitude, and is defined by an angled member 60a parallel to the rotational axis 1a and an angled member 60b following the respective main extension of the chip groove 6, wherein the angled member 60b is arranged in a leading manner rotating in the rotational direction 1b relative to the angled member 60a.

[0067] Figure 5 、 6 6 and 7 together show how coolant is guided into the coolant channel 12. Thus, the bearing area 4 has a central coolant main channel 9, a plate-shaped recess 14 interrupted by the central coolant main channel, four transverse grooves 16, and an annular wall 16. The coolant channel 12 is formed in the annular wall 16 and is integrally covered by the annular wall 16 at the front. The coolant guide cover 15 is releasably fixed to the base 14a of the recess 14 in a reversible manner by cover screws 13 and is located outside the transverse grooves 16 on the base 14a in a sealed manner, such that coolant can flow from the coolant main channel 9 only through the transverse grooves 16 into the recess 14. The coolant guide cover 15 is beveled into two steps at the side of the coolant main channel 9, such that the coolant guide cover 15 is radially spaced from the annular wall 14 relative to the rotational axis 1a, so that coolant can be introduced into the coolant channel 12 in a manner directed towards the coolant guide cover 15 after being discharged from the transverse grooves 16. Additionally, the coolant guide cover 15 seals the coolant guide recess at the front coolant guide cover 14.

[0068] Figures 1 to 9 The milling cutter 1 is shown, wherein the chip groove 8 is covered at the front due to the front wall portion 8 and is open at the front via an inlet gap 7 relative to one of the cutting elements 3, such that chips generated at the front during cutting move directly from the cutting element 3 into the chip groove 6, but are prevented from leaving by the front wall portion 8. Thus, the area left by the milling cutter 1 during face milling is better kept free of chips, and chip clogging at the front is better avoided since the front wall portion 8 integrally continues the bearing area 4.

[0069] The milling cutter 1 provides a suction effect during face milling, whereby the area left during face milling is even better kept free of chips. The suction effect is generated by reflecting coolant at the cutting element 3 by the cutting element 3 positioned at a coolant reflection angle 40.

[0070] The milling cutter 1 is not limited to Figures 1 to 9 the embodiment shown, and thus the cutting elements 3 can also be fixed to the bearing area 4 in a material-bonded manner, and / or additional cutting elements that cut only at the circumference can be provided.

Claims

1. A milling cutter (1) having a front side (2), a plurality of cutting elements (3) and an integral bearing area (4), wherein each cutting element (3) is fixed to the bearing area (4) and is arranged and configured for cutting at the front, wherein a plurality of chip grooves (6) are recessed in the bearing area (4), the chip grooves (6) being open at the front due to an inlet gap (7) relative to one of the cutting elements (3) and being covered at the front by a front wall portion (8) which integrally continues the bearing area (4).

2. The milling cutter (1) according to claim 1, wherein, At least one of the chip grooves (6) is laterally covered relative to the inlet gap (7), the inlet gap (7) opening the at least one of the chip grooves (6) to a greater extent than the width of the inlet gap (7).

3. The milling cutter (1) according to any one of the preceding claims, wherein, At least one of the front wall portions (8) is chamfered at the side thereof covering the chip groove (6).

4. The milling cutter (1) according to claim 3, wherein, The front wall portion (8) provided with the chamfer is chamfered at an internal chamfer angle (10) in the range of 10° to 75°.

5. The milling cutter (1) according to any one of the preceding claims, wherein, The bearing area (4) is undercut in a recessed manner at the front by at least one of the chip grooves (6).

6. The milling cutter (1) according to any one of the preceding claims, wherein, The bearing area (4) has at least one coolant channel (12), the coolant channel (12) being integrally closed at the front by the bearing area (4) and the coolant channel (12) opening in the area of one of the chip grooves (6).

7. The milling cutter (1) according to any one of the preceding claims, wherein, At least one of the cutting elements (3) is positioned inclined in the axial rearward direction to reflect coolant.

8. A milling cutter (1) according to any one of the preceding claims, wherein, At least one of the chip grooves (6) terminates in an uncovered state opposite to the front side (2).

9. The milling cutter (1) according to any one of the preceding claims, wherein, At least one of the chip grooves (6) is uncovered at least circumferentially.

10. The milling cutter (1) according to any one of the preceding claims, wherein at least one of the cutting elements (3) is reversibly releasably fixed to the bearing area (4) by a clamping element (5).

11. The milling cutter (1) according to claim 10, wherein the clamping element (5) is inserted into the bearing area (4) transversely to the longitudinal extent of the milling cutter (1).

12. The milling cutter (1) according to any one of the preceding claims, wherein at least one of the cutting elements (3) has a cutting edge carrier (3a) and a cutting edge member (3b) materially joined and carried by the cutting edge carrier (3a).

13. The milling cutter (1) according to any one of the preceding claims, wherein, At least one of the cutting elements (3) is also arranged and configured for circumferential cutting.

14. The milling cutter (1) according to any one of the preceding claims, wherein, The milling cutter (1) has at least five of the cutting elements (3) and at least five of the chip grooves (6), wherein each of the cutting elements (3) is also arranged and configured for circumferential cutting.

15. A milling cutter (1) according to any one of the preceding claims, wherein, The bearing area (4) has a plurality of webs (11), wherein a seat (4a) is formed in each web (11), and wherein each of the front wall portions (8) integrally continues with one of the webs (11) in the circumferential direction opposite to each seat (4a).

Citation Information

Patent Citations

  • chip guide cover for cutting tool

    DE102016116466A1