CN116160050A - Single-edge slotting cutter - Google Patents
Single-edge slotting cutter Download PDFInfo
- Publication number
- CN116160050A CN116160050A CN202210751654.2A CN202210751654A CN116160050A CN 116160050 A CN116160050 A CN 116160050A CN 202210751654 A CN202210751654 A CN 202210751654A CN 116160050 A CN116160050 A CN 116160050A
- Authority
- CN
- China
- Prior art keywords
- edge
- cutting
- cutter
- groove
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1009—Ball nose end mills
- B23C5/1018—Ball nose end mills with permanently fixed cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
- B23C2210/201—Number of cutting edges one
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/40—Flutes, i.e. chip conveying grooves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to a single-edge slotting cutter, which comprises a cylindrical cutter handle and a cutter head integrally formed with the cutter handle, wherein the cutter head is positioned at the front end of the cutter handle, the cutter head comprises a cutting edge, a chip groove, a chip breaking groove and a negative chamfer, the cutting edge is arranged at the front end of the cutter head, the cutting edge comprises a left side edge and a right side edge, the right side edge and a central axis of the single-edge slotting cutter form a plane, and in the plane, the central axis forms an angle of 45 degrees with the right side edge along the clockwise direction; the chip breaking groove is connected with the rear end of the cutting edge, the chip breaking groove is arranged at the back of the cutting edge, the chip breaking groove is connected with the rear part of the left end of the chip breaking groove, the chip breaking groove is arranged between the chip breaking groove and the chip breaking groove, and a negative chamfer with a certain width is formed between the chip breaking groove and the chip breaking groove. The single-edge slotting cutter can be used for slotting on products more easily when the single-edge slotting cutter is used for slotting.
Description
Technical Field
The invention relates to the technical field of machining cutters, in particular to a single-edge slotting cutter.
Background
The single-edge slotting cutter belongs to milling cutters, and the milling cutters are rotary cutters with one or more cutter teeth, and during operation, each cutter tooth is used for cutting off the allowance of a workpiece intermittently in sequence, and the single-edge slotting cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting off the workpiece and other processes on a milling machine, and the single-edge slotting cutter of hard alloy has a series of excellent performances of high hardness, wear resistance, better strength and toughness, heat resistance, corrosion resistance and the like, particularly the high hardness and wear resistance of the single-edge slotting cutter are basically kept unchanged even at the temperature of 500 ℃, and the single-edge slotting cutter has very high hardness at the temperature of 1000 ℃. The single-edge slotting cutter is used for forming one or more grooves on the surface or inside of a product.
The existing single-edge slotting cutter is easy to collapse the cutting edge when being used for cutting, is not easy to cut into the surface of a material, has poor chip effect and low working efficiency, and in addition, the existing single-edge slotting cutter is small in chip removal space, and chips cannot be timely discharged from a working area, so that the existing single-edge slotting cutter is wound on products, turning tools and the like, the working efficiency is affected, and the service life of the cutter is reduced.
Disclosure of Invention
The invention provides a single-edge slotting cutter, which solves the technical problems that when a product is processed by the single-edge slotting cutter in the market, the lower cutter is easy to collapse the cutting edge, is difficult to cut into the surface of a material, and has poor cutting effect and low working efficiency.
The utility model provides a single-edge slotting cutter, includes cylindric handle of a knife and with the tool bit of handle of a knife integrated into one piece, the tool bit is located the front end of handle of a knife, its characterized in that, the tool bit includes cutting edge, chip groove, chip breaker and negative chamfer, the cutting edge is located the front end of tool bit, the cutting edge includes left side arris and right side arris, right side arris with the axis of single-edge slotting cutter forms a plane, in this plane, the axis along clockwise with the angle of right side arris is 45; the chip breaking groove is connected with the rear end of the cutting edge, the chip breaking groove is arranged at the back of the cutting edge, the chip breaking groove is connected with the rear part of the left end of the chip breaking groove, the chip breaking groove is arranged between the chip breaking groove and the chip breaking groove, and a negative chamfer with a certain width is formed between the chip breaking groove and the chip breaking groove.
Further, the blade comprises a front side surface and a back side surface; the chip breaker groove is formed in the back of the cutting edge and comprises a back side surface of the cutting edge, the chip breaker groove further comprises a step surface in arc connection with the back side surface of the cutting edge, the step surface is positioned at the rear part of the back of the cutting edge, and the step surface is positioned on the cutter head body, namely, a step is formed between the cutter head body and the chip breaker groove; the height from any point of the blade to the corresponding step surface is 0.4mm-1mm.
Further, the cutting edge is sequentially divided into a first cutting surface, a second cutting surface, a third cutting surface and a fourth cutting surface which are closely connected along the left-to-right direction, the bottom edge of the first cutting surface is lower than the bottom edges of the other three cutting surfaces, the bottom edge of the second cutting surface is higher than the bottom edge of the third cutting surface, and the bottom edge of the third cutting surface is higher than the bottom edge of the fourth cutting surface; the adjacent two cutting surfaces are mutually at a certain angle.
Further, the left edge of the blade is configured as the left side edge of the first cutting surface, and the right edge of the blade is configured as the right side edge of the fourth cutting surface.
Further, the chip groove extends forwards from the front end of the cutter handle to the left end of the chip breaking groove in a spiral mode, and a groove surface of the chip groove extending to the rear end of the cutter handle is of a semi-elliptical shape.
A fifth cutting surface is further arranged on the shank at the lower part of the cutting edge, the right side of the fifth cutting surface is connected with the left side of the chip dividing groove, and the right side of the chip dividing groove is connected with the left side of the negative chamfer; the groove surface of the chip dividing groove is a curved surface, and the width of the groove surface of the chip dividing groove gradually increases along the direction from back to front.
Further, the negative chamfer is a long block in a spiral shape, the upper surface of the negative chamfer and the side face of the cutter handle are in the same curved surface, the negative chamfer extends forwards from the rear end of the cutter handle in a spiral manner, the front part of the negative chamfer is connected with the rear part of the fourth cutting face, the width of the negative chamfer, which is close to the cutter handle, is wider than that of the negative chamfer, which is close to the cutter blade, is a fixed value, and the numerical range is 0.1mm-0.2mm.
Further, the front part of the negative chamfer and the rear part of the fourth cutting face are at the same height, and the height value is the same as the height value of the cutter handle.
Further, the number of the fifth cutting surfaces is a plurality of, and the fifth cutting surfaces are inclined planes which incline relative to the central axis of the tool handle from back to front; the plurality of fifth cutting surfaces are sequentially arranged in an adjacent manner from left to right along the circumferential direction of the cutter handle, two adjacent fifth cutting surfaces are mutually at a certain angle, the edges of the front parts of the plurality of fifth cutting surfaces form part of the edges of the rear parts of the step surfaces, the left side of the leftmost fifth cutting surface is connected with the right side of the chip dividing groove, the connection part of the plurality of fifth cutting surfaces and the cutter handle forms a canine tooth-shaped groove, the canine tooth-shaped grooves are sequentially distributed around the circumferential direction of the cutter handle, and the right side of the rightmost fifth cutting surface is connected with the left side of the chip discharging groove.
The beneficial effects are that: the angle between the right side edge of the cutting edge and the central axis of the single-edge slotting cutter in the clockwise direction is 45 degrees, so that slotting on a product can be easier when the single-edge slotting cutter is used for slotting. The single-edge slotting cutter not only optimizes chip grooves, but also increases chip grooves and increases chip removal space, so that chips can be smoothly and rapidly discharged from a working area, and the machining efficiency and the machining quality are improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic view of the structure of a single-edge slotting cutter of the present invention;
FIG. 2 is a front view of the single-edge groover of the present invention;
FIG. 3 is a rear view of the single-edge groover of the present invention;
FIG. 4 is a left side view of the single-edge groover of the present invention;
FIG. 5 is a right side view of the single-edge groover of the present invention;
fig. 6 is a top view of the single-edge groover of the present invention.
Reference numerals: 1. a single-edge slotting cutter body; 2. a knife handle; 3. a cutter head; 4. a blade; 11. a first cutting surface; 12. a second cutting face; 13. a third cutting face; 14. a fourth cutting face; 15. negative chamfering; 16. a chip removal groove; 17. a chip dividing groove; 18. a chip breaker; 19. a step surface; 20. a fifth cutting face; 21. left side edges; 22. right side edges; 23. a central axis.
Detailed Description
Referring to fig. 1-6, a single-edge slotting cutter body 1 comprises a cylindrical cutter handle 2 and a cutter head 3 integrally formed with the cutter handle 2, wherein the cutter head 3 is positioned at the front end of the cutter handle 2, the cutter head 3 comprises a cutter edge 4, a chip groove 16, a chip dividing groove 17, a chip breaking groove 18 and a negative chamfer 15, the cutter edge 4 is arranged at the front end of the cutter head 3, the cutter edge 4 comprises a left side edge 21 and a right side edge 22, the right side edge 22 and a central axis 23 of the single-edge slotting cutter body 1 form a plane, and in the plane, the central axis 23 forms an angle of 45 degrees with the right side edge 22 along the clockwise direction; the chip breaker is characterized in that the chip breaker 17 is connected with the rear end of the cutting edge 4, the chip breaker 18 is arranged on the back of the cutting edge 4, the chip breaker 16 is connected with the rear part of the left end of the chip breaker 18, the chip breaker 16 is arranged between the chip breaker 18 and the chip breaker 17, and a negative chamfer 15 with a certain width is formed between the chip breaker 17 and the chip breaker 16.
The blade 4 comprises a front side surface and a back side surface; the chip breaker 18 is arranged at the back of the cutting edge 4, the chip breaker 18 comprises a back side surface of the cutting edge 4, the chip breaker 18 further comprises a step surface 19 connected with the back side surface of the cutting edge 4 in an arc manner, the step surface 19 is positioned at the rear part of the back of the cutting edge 4, and the step surface 19 is positioned on the cutter head 3 body, namely, a step is formed between the cutter head 3 body and the chip breaker 18; the height of any point of the blade 4 perpendicular to the corresponding step surface 19 is 0.4mm-1mm. The height of the chip breaker 18 is increased, so that the chip removal space of the chip breaker 18 is increased, and chips can be smoothly and rapidly discharged out of the working area. The chip breaker groove 18 controls the flow direction of a part of chips, so that the front ends of the chips touch the product or the rear cutter surface to break the chips smoothly, the chips are discharged out of the working area smoothly, and the chips are not wound on the cutter. The arc-shaped chip breaking groove surface can enable chips to stably slide on the cutter surface, so that the safety of the cutter during chip removal is greatly improved.
The cutting edge 4 is sequentially divided into a first cutting surface 11, a second cutting surface 12, a third cutting surface 13 and a fourth cutting surface 14 which are closely connected along the left-to-right direction, the bottom edge of the first cutting surface 11 is lower than the bottom edges of the other three cutting surfaces, the bottom edge of the second cutting surface 12 is higher than the bottom edge of the third cutting surface 13, and the bottom edge of the third cutting surface 13 is higher than the bottom edge of the fourth cutting surface 14; the adjacent two cutting surfaces are mutually at a certain angle. The cutting surfaces with different heights and different directions can disperse the pressure born by the cutting edge 4 during grooving, so that the pressure born by the cutter tip of the cutting edge 4 is greatly reduced, the cutter head 3 is less easy to damage, and the service life of the cutter head 3 is prolonged.
The left edge 21 of the cutting edge 4 is configured as the left side of the first cutting surface 11, and the right edge 22 of the cutting edge 4 is configured as the right side of the fourth cutting surface 14. The right side edge 22 of the cutting edge 4 and the included angle of the central axis 23 are 45 degrees, the cutting edge is not easy to collapse during cutting, the surface of a material is easy to cut in, the surface of a product is not easy to damage, the cutting effect is better, and the working efficiency is higher.
The chip groove 16 extends forwards spirally from the front end of the cutter handle 2 to the left end of the chip breaker groove 18, and a groove surface of the chip groove 16 extending to the rear end of the cutter handle 2 is semi-elliptical. The chip grooves 16 can smoothly and rapidly discharge a large amount of chips with large volume during cutting, and are important for prolonging the service life of the cutter; the volume of the generated cuttings can be controlled, so that the cuttings are easier to treat, store and transport.
A fifth cutting surface 20 is further arranged on the knife handle 2 at the lower part of the cutting edge 4, the right side of the fifth cutting surface 20 is connected with the left side of the chip dividing groove 17, and the right side of the chip dividing groove 17 is connected with the left side of the negative chamfer 15; the groove surface of the chip breaker 17 is a curved surface, and the width of the groove surface of the chip breaker 17 gradually increases in the back-to-front direction. The chip-separating groove 17 smoothly discharges a small amount of small-volume chips during cutting, reduces the pressure of the chip-separating groove 16, and prevents the chips from being blocked or wound on the surface of a cutter; the volume of the generated cuttings can be controlled, so that the cuttings are easier to treat, store and transport.
The negative chamfer 15 is a long block in a spiral shape, the upper surface of the negative chamfer 15 and the side surface of the cutter handle 2 are in the same curved surface, the negative chamfer 15 extends forwards in a spiral manner from the rear end of the cutter handle 2, the front part of the negative chamfer 15 is connected with the rear part of the fourth cutting surface 14, the width of the negative chamfer 15 close to the cutter handle 2 is wider than that of the negative chamfer 15 close to the cutter blade 4, the width of the negative chamfer 15 close to the cutter blade 4 is a constant value, and the numerical range is 0.1mm-0.2mm. The front part of the negative chamfer 15 and the rear part of the fourth cutting surface 14 are at the same height, and the height value is the same as that of the shank 2. The width of the negative chamfer 15 is 0.1mm-0.2mm, the included angle between the wedge angle front cutter surface and the wedge angle rear cutter surface of the cutter is increased, the blade strength is enhanced, the heat dissipation area is enlarged, the durability of the cutter is improved, and the cutting chips are smoothly rolled. The traditional negative chamfer can generate accumulated chippings during cutting, and the negative chamfer 15 designed by the product increases the actual rake angle of the cutter, so that the cutting edge 4 becomes sharp, the accumulated chippings are continuously generated, the original accumulated chippings are replaced by new accumulated chippings, part of cutting heat is taken away, and the cutting edge 4 is protected. And the negative chamfer 15 can increase the cutting strength of the turning tool, so that the cutting edge is not easy to wear, and can bear larger cutting force and break the cutting edge when the feeding amount is increased.
The number of the fifth cutting surfaces 20 is a plurality, and the fifth cutting surfaces 20 are inclined surfaces which incline from back to front relative to the central axis 23 of the tool shank 2; the fifth cutting surfaces 20 are sequentially and adjacently arranged from left to right along the circumferential direction of the tool shank 2, a certain angle is formed between the two adjacent fifth cutting surfaces 20, the edges of the front parts of the fifth cutting surfaces 20 form part of the edges of the rear parts of the stepped surfaces 19, the left side of the leftmost fifth cutting surface 20 is connected with the right side of the chip dividing groove 17, dog-shaped grooves are formed at the connection positions of the fifth cutting surfaces 20 and the tool shank 2, the dog-shaped grooves are sequentially distributed around the circumferential direction of the tool shank 2, and the right side of the rightmost fifth cutting surface 20 is connected with the left side of the chip discharging groove 16. The fifth cutting surface 20 can prevent the chips generated during the operation of the cutter head 3 from being easily rolled on the single-edge slotting cutter tool body 1, thereby prolonging the service life of the cutter.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way; those skilled in the art will readily appreciate that the present invention may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present invention are possible in light of the above teachings without departing from the scope of the invention; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present invention still fall within the scope of the present invention.
Claims (9)
1. The utility model provides a single-edge slotting cutter, includes cylindric handle of a knife (2) and with handle of a knife (2) integrated into one piece's tool bit (3), tool bit (3) are located the front end of handle of a knife (2), a serial communication port, tool bit (3) include cutting edge (4), chip groove (16), chip groove (17), chip breaker (18) and negative chamfer (15), cutting edge (4) locate the front end of tool bit (3), cutting edge (4) include left side arris (21) and right side arris (22), right side arris (22) with single-edge slotting cutter's axis (23) form a plane, in this plane, axis (23) along clockwise with the angle of right side arris (22) is 45 °; the chip breaker is characterized in that the chip breaker (17) is connected with the rear end of the cutting edge (4), the chip breaker (18) is arranged on the back of the cutting edge (4), the chip breaker (16) is connected with the rear portion of the left end of the chip breaker (18), the chip breaker (16) is arranged between the chip breaker (18) and the chip breaker (17), and a negative chamfer (15) with a certain width is formed between the chip breaker (17) and the chip breaker (16).
2. The single-edge slotting cutter according to claim 1, wherein the cutting edge (4) comprises a front side and a back side; the chip breaker groove (18) is formed in the back of the cutting edge (4), the chip breaker groove (18) comprises a back side surface of the cutting edge (4), the chip breaker groove (18) further comprises a step surface (19) connected with the back side surface of the cutting edge (4) in an arc mode, the step surface (19) is located at the rear portion of the back of the cutting edge (4), and the step surface (19) is located on the cutter head (3) body, namely a step is formed between the cutter head (3) body and the chip breaker groove (18); the height of any point of the blade (4) perpendicular to the corresponding step surface (19) is 0.4mm-1mm.
3. The single-edge slotting cutter according to claim 1, wherein the cutting edge (4) is divided into a first cutting surface (11), a second cutting surface (12), a third cutting surface (13) and a fourth cutting surface (14) which are closely connected in sequence along the direction from left to right, the bottom edge of the first cutting surface (11) is lower than the bottom edges of the other three cutting surfaces, the bottom edge of the second cutting surface (12) is higher than the bottom edge of the third cutting surface (13), and the bottom edge of the third cutting surface (13) is higher than the bottom edge of the fourth cutting surface (14); the adjacent two cutting surfaces are mutually at a certain angle.
4. A single-edge slotting cutter according to claim 3, characterized in that the left edge (21) of the cutting edge (4) is configured as the left side of the first cutting surface (11) and the right edge (22) of the cutting edge (4) is configured as the right side of the fourth cutting surface (14).
5. The single-edge slotting cutter according to claim 1, characterized in that the chip groove (16) extends spirally forward from the front end of the cutter shank (2) to the left end of the chip breaker groove (18), and the groove surface of the chip groove (16) extending to the rear end of the cutter shank (2) is semi-elliptical-like.
6. The single-edge slotting cutter according to claim 2, characterized in that a fifth cutting surface (20) is further arranged on the handle (2) at the lower part of the cutting edge (4), the right side of the fifth cutting surface (20) is connected with the left side of the chip dividing groove (17), and the right side of the chip dividing groove (17) is connected with the left side of the negative chamfer (15); the groove surface of the chip dividing groove (17) is a curved surface, and the width of the groove surface of the chip dividing groove (17) gradually increases along the direction from back to front.
7. The single-edge slotting cutter according to claim 6, wherein the negative chamfer (15) is a long spiral block, the upper surface of the negative chamfer (15) is in the same curved surface with the side surface of the cutter handle (2), the negative chamfer (15) extends forwards spirally from the rear end of the cutter handle (2), the front part of the negative chamfer (15) is connected with the rear part of the fourth cutting surface (14), the width of the negative chamfer (15) near the cutter handle (2) is wider than the width of the negative chamfer (15) near the cutter edge (4), and the width of the negative chamfer (15) near the cutter edge (4) is constant, and the numerical range is 0.1mm-0.2mm.
8. The single-edge slotting cutter according to claim 7, characterized in that the front part of the negative chamfer (15) and the rear part of the fourth cutting face (14) are at the same height and the height value is the same as the height value of the handle (2).
9. The single-edge slotting cutter according to claim 6, wherein the number of the fifth cutting surfaces (20) is plural, and the fifth cutting surfaces (20) are inclined surfaces which are inclined from back to front with respect to the central axis (23) of the cutter shank (2); the plurality of fifth cutting surfaces (20) are sequentially arranged adjacently from left to right along the circumferential direction of the cutter handle (2), two adjacent fifth cutting surfaces (20) form a certain angle, the edges of the front parts of the plurality of fifth cutting surfaces (20) form part of the edges of the rear parts of the step surfaces (19), the left side of the leftmost fifth cutting surface (20) is connected with the right side of the chip dividing groove (17), canine-shaped grooves are formed at the joint of the plurality of fifth cutting surfaces (20) and the cutter handle (2), the canine-shaped grooves are sequentially distributed around the circumferential direction of the cutter handle (2), and the right side of the rightmost fifth cutting surface (20) is connected with the left side of the chip discharging groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210751654.2A CN116160050A (en) | 2022-08-03 | 2022-08-03 | Single-edge slotting cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210751654.2A CN116160050A (en) | 2022-08-03 | 2022-08-03 | Single-edge slotting cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116160050A true CN116160050A (en) | 2023-05-26 |
Family
ID=86416976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210751654.2A Pending CN116160050A (en) | 2022-08-03 | 2022-08-03 | Single-edge slotting cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116160050A (en) |
-
2022
- 2022-08-03 CN CN202210751654.2A patent/CN116160050A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103381496A (en) | Compound positioning and cutting spiral cutter | |
| CN103381497A (en) | Centering spiral cutter for combined positioning and combined cutting | |
| CN102039439B (en) | Centering spiral cutter capable of composite positioning and combined cutting | |
| CN210702770U (en) | Milling cutter with end chip grooves | |
| CN116160050A (en) | Single-edge slotting cutter | |
| CN217964952U (en) | Single-edge grooving cutter | |
| CN113399724B (en) | Fast feed milling blade and milling cutter thereof | |
| CN210648706U (en) | Cutting tool and tool bit structure thereof | |
| CN211708208U (en) | Titanium alloy double-chip-groove round nose milling cutter | |
| CN202239851U (en) | Milling cutter for efficiently cutting hard alloy at high speed | |
| JP4812537B2 (en) | Cutting inserts and turning tools | |
| CN217666706U (en) | Open end milling cutter for rough machining | |
| CN216938597U (en) | Hard alloy milling cutter with burnishing edges | |
| CN113579326B (en) | Multi-edge T-shaped cutter and machining method thereof | |
| CN212217221U (en) | Round nose cutter | |
| CN215615397U (en) | Round nose milling cutter that machining precision is high | |
| CN211331527U (en) | Tool bit structure and cutting tool | |
| CN217889630U (en) | Four-edge end mill | |
| JP6447566B2 (en) | Drilling tool | |
| CN216575731U (en) | Three-edge round nose knife | |
| CN220161920U (en) | Combined T-shaped slotting cutter | |
| CN216065717U (en) | Ultramicron chamfer milling cutter | |
| CN218836212U (en) | Gas turbine wheel groove semi-finish milling cutter with anti-tipping design | |
| CN217551264U (en) | Multi-edge round nose milling cutter | |
| CN216065718U (en) | Quick shaping milling cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |