CN110919058A - Efficient three-blade broaching tool capable of performing intermittent machining - Google Patents
Efficient three-blade broaching tool capable of performing intermittent machining Download PDFInfo
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- CN110919058A CN110919058A CN201911333171.5A CN201911333171A CN110919058A CN 110919058 A CN110919058 A CN 110919058A CN 201911333171 A CN201911333171 A CN 201911333171A CN 110919058 A CN110919058 A CN 110919058A
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- 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
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Abstract
The invention discloses an efficient three-blade broaching tool capable of machining discontinuously, and belongs to the field of broaching tools. The three-edge reamer comprises a cutter handle and a cutting part, wherein the cutting part is provided with three spiral cutting edges distributed in the circumferential direction, a spiral groove is formed between every two adjacent spiral cutting edges, each cutting edge is provided with an end edge arranged on the end surface of the three-edge reamer and a circumferential edge arranged in the circumferential direction of the three-edge reamer, the end edges of the three cutting edges are in an unequal structure on the end surface of the three-edge reamer, and the difference between the maximum value and the minimum value of the included angle between the end edges of the two adjacent cutting edges on the end surface of the three-edge reamer is 5-9 degrees; the cutting part is provided with a back taper with a big front and a small back. The three-blade broaching tool disclosed by the invention adopts a three-blade unequal design and is matched with an inverted cone design, so that the vibration of broaching and cutting is reduced, a very good cutting guide effect is realized, intermittent broaching processing with high efficiency and large metal removal amount can be carried out, and the processing precision and the processing efficiency are greatly improved.
Description
Technical Field
The invention relates to a hole expanding cutter, in particular to an efficient three-edge hole expanding cutter capable of machining intermittently.
Background
In the machining process, various kinds of hole machining are frequently encountered, and the hole machining is also an uncommon machining means. According to different processing methods, hole processing usually comprises drilling, reaming and reaming, and the like, and cutters used in different processing methods have different characteristics, wherein reaming is a processing method for further enlarging a hole on the basis of an original hole, and a reaming cutter generally comprises a cutting edge and a chip groove and is mainly used for enlarging a hole with a precast hole or a bottom hole and improving cylindricity and roughness. Chinese patent No. ZL200920033836.6 discloses a spiral flute-shaped reamer, which comprises a drill core and a spiral flute, wherein the spiral flute shape is a smooth arc line formed by three sections of arcs, namely, a cutting arc, a chip coiling arc tangent to the cutting arc, and a chip containing arc tangent to the chip coiling arc, so that the strength of a cutting edge of the reamer can be ensured, an enough chip containing space is provided, chips are easy to curl and break, and the chips are prevented from damaging a processed surface.
When the existing hole expanding cutter is used for machining holes with intermittent characteristics such as valve holes of a hydraulic valve, the intermittent machining precision of the holes is difficult to guarantee due to poor vibration suppression of the cutter, the straightness, the roughness and the like of the holes are relatively poor, large workload is brought to subsequent finish machining, and the machining efficiency is low.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of poor interrupted machining precision, low efficiency and the like of the existing reaming cutter, and provides an efficient three-edge reaming cutter capable of realizing interrupted machining, wherein the three-edge reaming cutter adopts a three-edge unequal design, the difference between the maximum value and the minimum value of an included angle between end edges of two adjacent cutting edges is 5-9 degrees, and the maximum value and the minimum value are matched with an inverted cone design with a large front part and a small rear part of a cutting part, so that the vibration of reaming and cutting is reduced, the working stability of the three-edge reaming cutter is improved, the cutting guide function is good, the interrupted reaming machining with high-efficiency and large metal removal can be realized, and the machining precision and the machining efficiency are greatly improved.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention relates to an efficient three-edge reamer capable of being processed discontinuously, which comprises a cutter handle and a cutting part arranged at the front part of the cutter handle, wherein the cutting part is provided with three spiral cutting edges distributed in the circumferential direction, a spiral groove is formed between every two adjacent spiral cutting edges, each cutting edge is provided with an end edge arranged on the end surface of the three-edge reamer and a circumferential edge arranged in the circumferential direction of the three-edge reamer, the end edges of the three cutting edges are in an unequal structure on the end surface of the three-edge reamer, and the difference between the maximum value and the minimum value of an included angle between the end edges of the two adjacent cutting edges on the end surface of the three-edge reamer is 5-9 degrees; the cutting part is provided with a back taper with a big front part and a small back part.
Furthermore, the back taper of the cutting part is 100/(0.015-0.03) mm.
Further, the included angles between the end edges of two adjacent cutting edges are respectively 116.5 °, 118.5 ° and 125 °.
Furthermore, a cooling liquid channel is arranged at the center of the cutter handle and the center of the cutting part, and a liquid spraying opening communicated with the cooling liquid channel is arranged in the spiral groove.
Furthermore, the liquid spraying openings in the three spiral grooves are distributed at intervals along the axial direction of the cutting part.
Furthermore, the negative chamfer of the peripheral edge of the cutting edge is 0 degree, and the peripheral edge of the cutting edge adopts a double-edged structure and comprises a first peripheral edge and a second peripheral edge.
Furthermore, the front end of the cutting part is optionally provided with a layered structure, the layered structure is that a front cutting section with the diameter D1 smaller than the diameter D2 of the main body part of the cutting part is arranged at the front end of the cutting part, and the cutting edge on the front cutting section is connected with the cutting edge of the main body part of the cutting part through a layered transition taper angle.
Further, the end front chamfer angle of the front cutting section is larger than the angle of the layered transition cone angle.
Further, the angle of the front chamfer is 45 degrees, and the angle of the layered transition cone angle is 30 degrees.
Furthermore, the three-edge reamer is integrally processed and manufactured by hard alloy materials.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the invention relates to an efficient three-edge hole expanding cutter capable of being processed discontinuously, wherein a cutting part of the efficient three-edge hole expanding cutter is provided with three spiral cutting edges distributed in the circumferential direction, a spiral groove is formed between every two adjacent spiral cutting edges, each cutting edge is provided with an end edge arranged on the end surface of the three-edge hole expanding cutter and a peripheral edge arranged in the circumferential direction of the three-edge hole expanding cutter, the end edges of the three cutting edges are in an unequal structure on the end surface of the three-edge hole expanding cutter, the difference between the maximum value and the minimum value of an included angle between the end edges of the two adjacent cutting edges on the end surface of the three-edge hole expanding cutter is 5-9 degrees, and the cutting part; the three-blade broaching tool adopts a three-blade unequal design and is matched with a back taper design with a large front part and a small back part of a cutting part, so that on one hand, vibration of broaching and cutting is reduced, the working stability of the three-blade broaching tool is improved, efficient large metal removal capacity broaching processing can be carried out, on the other hand, a very good cutting guide effect is achieved, the concentricity of an intermittent processing hole is ensured, therefore, efficient large metal removal capacity interrupted broaching processing can be carried out, and the processing precision and the processing efficiency are greatly improved;
(2) according to the efficient three-blade broaching tool capable of being discontinuously machined, the back taper of the cutting part is 100/(0.015-0.03) mm, the back taper angle is small, a very good cutting guide effect is achieved, and the straightness of broaching machining is guaranteed;
(3) according to the efficient three-blade broaching tool capable of being intermittently machined, the included angles between the end blades of the two adjacent cutting blades are respectively 116.5 degrees, 118.5 degrees and 125 degrees, and by adopting the unequal angle design, cutting resonance is effectively reduced, vibration of the tool is effectively inhibited, and the broaching machining precision is improved;
(4) according to the efficient three-blade broaching tool capable of being discontinuously processed, the centers of the tool handle and the cutting part are provided with the cooling liquid channel, the liquid spraying port communicated with the cooling liquid channel is arranged in the spiral groove, and a single straight hole shunting cooling design is adopted, so that the heat dissipation effect of the tool is improved, the smooth chip removal is ensured, and the service life and the processing efficiency of the three-blade broaching tool are improved;
(5) according to the efficient three-blade broaching tool capable of being processed discontinuously, the liquid spraying ports in the three spiral grooves are distributed at intervals along the axial direction of the cutting part, so that the strength of the tool and the uniformity of cooling liquid spraying are guaranteed;
(6) according to the efficient three-edge hole expanding cutter capable of being processed discontinuously, the negative chamfering of the peripheral edge of the cutting edge is 0 degree, the peripheral edge of the cutting edge adopts a double-edged belt structure and comprises the first peripheral edge and the second peripheral edge, the double-edged belt design is adopted, so that the guiding effect of the hole expanding cutter is better, the cutting heat dissipation effect of the cutter is improved, and meanwhile, the double-edged belt design has a burnishing effect, so that the processed hole wall has higher finish degree and cylindricity;
(7) according to the efficient three-edge reamer capable of being intermittently machined, the front end of the cutting part is selectively provided with the layered structure, the layered structure is that the front end of the cutting part is provided with the front cutting section with the diameter D1 smaller than the diameter D2 of the main body part of the cutting part, the cutting edge on the front cutting section is connected with the cutting edge of the main body part of the cutting part through the layered transition taper angle, the layered design is adopted, the cutting chips are small broken chips, the cutting efficiency is high, the cleaning of the cutting chips in the hole is easier, the reamer is particularly suitable for multi-channel intermittent hole machining, and the problem that the residual cutting chips block the hole channel is effectively solved;
(8) according to the efficient three-blade broaching tool capable of being processed discontinuously, in a layered structure, the angle of the front chamfer at the end part of the front cutting section is larger than the angle of the layered transition cone angle, the angle of the front chamfer is preferably 45 degrees, the angle of the layered transition cone angle is preferably 30 degrees, so that the cutting of the tool is more stable, and the cutting efficiency is higher;
(9) the efficient three-blade broaching tool capable of being processed discontinuously is integrally processed and manufactured by the hard alloy material, and is strong in tool integrity, high in strength and long in service life.
Drawings
Fig. 1 is a schematic perspective view of an efficient three-blade reamer capable of being intermittently machined according to embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion K' of FIG. 1;
fig. 3 is a schematic front view of an efficient three-blade reamer capable of being intermittently machined according to embodiment 1 of the present invention;
fig. 4 is an axial view of a cutting portion of an efficient three-edged reamer capable of being intermittently machined according to embodiment 1 of the present invention;
fig. 5 is a schematic perspective view of an efficient three-blade reamer capable of being intermittently processed according to embodiment 2 of the present invention;
FIG. 6 is an enlarged view of a portion of the structure at K in FIG. 5;
fig. 7 is a schematic front view of an efficient three-blade reamer capable of being intermittently processed according to embodiment 2 of the present invention;
fig. 8 is an axial view of the cutting portion of an efficient three-edged reamer capable of being intermittently machined according to embodiment 2 of the present invention;
the reference numerals in the schematic drawings illustrate:
1. a knife handle; 2. a cutting portion; 2-1, a cutting edge; 2-1a, an end blade; 2-1b, a first peripheral edge; 2-1c, a second peripheral edge; 2-2, spiral groove; 2-3, a front cutting section; 2-4, layered transition taper angle; 2-5, chamfering the front part; 3. a coolant passage; 3-1, a liquid spraying port; 4. a transition section.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
With reference to fig. 1 and 5, the efficient three-blade reamer capable of being discontinuously machined comprises a reamer handle 1 and a cutting part 2 arranged at the front part of the reamer handle 1, wherein the cutting part 2 is provided with three spiral cutting edges 2-1 distributed in the circumferential direction, and a spiral groove 2-2 is formed between every two adjacent spiral cutting edges 2-1; each cutting edge 2-1 is provided with an end edge 2-1a arranged on the end surface of the three-edge hole expanding cutter and a circumferential edge arranged on the circumference of the three-edge hole expanding cutter, the end edges 2-1a of the three cutting edges 2-1 have unequal structures on the end surface of the three-edge hole expanding cutter, and the difference between the maximum value and the minimum value of the included angle between the end edges 2-1a of two adjacent cutting edges 2-1 on the end surface of the three-edge hole expanding cutter is 5-9 degrees; the cutting part 2 has a reverse taper with a large front and a small rear, and the reverse taper of the cutting part 2 is generally 100/0.015 to 0.03 mm. By adopting the design of unequal three edges and matching with the back taper design of the cutting part with a large front part and a small back part, on one hand, the vibration of reaming and cutting is reduced, the working stability of the three-edge reaming cutter is improved, and on the other hand, the cutting guide function is very good, so that the interrupted reaming processing of high efficiency and large metal removal amount can be carried out, and the processing precision and the processing efficiency are greatly improved. In addition, the peripheral edge of the cutting edge 2-1 adopts a double-edged strip structure, comprises a first peripheral edge 2-1b and a second peripheral edge 2-1c, and adopts a double-edged strip design, so that the guiding effect of the hole expanding cutter is better, the cutting heat dissipation effect of the cutter is improved, and meanwhile, the double-edged strip design has a burnishing effect, so that the processed hole wall has higher smoothness and cylindricity.
According to the design of machining allowance, a layered structure can be selectively provided at the front end of the cutting portion 2, and a single-layer machining blade or a double-layer layered machining blade can be designed. The layered structure is that a front cutting section 2-3 with the diameter D1 smaller than the diameter D2 of the main body part of the cutting part 2 is arranged at the front end of the cutting part 2, and the cutting edge 2-1 on the front cutting section 2-3 is connected with the cutting edge 2-1 of the main body part of the cutting part 2 through a layered transition taper angle 2-4. The layered design is adopted, the cuttings are small broken cuttings, the cutting is efficient, the cuttings in the holes can be cleaned more easily, the method is particularly suitable for multi-channel intermittent hole machining, and the problem that the cuttings are left to block the hole channels is effectively solved.
The present invention will be further described with reference to the following examples.
[ example 1]
As shown in fig. 1 to 4, the efficient three-edge reamer capable of performing intermittent machining in this embodiment is a three-edge reamer designed with a single-layer machining edge, and includes a tool holder 1 and a cutting part 2 disposed at a front portion of the tool holder 1, the cutting part 2 has three circumferentially distributed spiral cutting edges 2-1, a spiral groove 2-2 is disposed between two adjacent spiral cutting edges 2-1, each cutting edge 2-1 has an end edge 2-1a disposed on an end surface of the three-edge reamer and a circumferential edge disposed in a circumferential direction of the three-edge reamer, the end edge 2-1a of the three cutting edges 2-1 has an unequal structure on the end surface of the three-edge reamer, a difference between a maximum value and a minimum value of an included angle between the end edges 2-1a of the two adjacent cutting edges 2-1 on the end surface of the three-edge reamer is 5 ° to 9 °, in the embodiment, the included angles between the end blades 2-1a of the two adjacent cutting edges 2-1 are preferably respectively designed to be 116.5 degrees, 118.5 degrees and 125 degrees, and the unequal design of the three blades is adopted to reduce the vibration of reaming and cutting, effectively inhibit the vibration of a cutter, improve the working stability of the three-blade reaming cutter, perform efficient large-metal-removal-amount reaming and improve the reaming precision; and the cutting part 2 is provided with an inverted cone with a big front and a small back, the inverted cone of the cutting part 2 is preferably 100/0.015-0.03 mm, and the design of the inverted cone with the big front and the small back is matched with the cutting part, so that the cutting guide function is very good, the concentricity of an intermittent machining hole and the straightness of hole expanding machining are ensured, the intermittent hole expanding machining with high efficiency and large metal removal amount can be carried out, and the machining precision and the machining efficiency are greatly improved.
As shown in fig. 3, in order to improve the service life of the three-edge reamer, the center of the cutter handle 1 and the center of the cutting part 2 are provided with the cooling liquid channel 3, and the spiral groove 2-2 is internally provided with the liquid spraying port 3-1 communicated with the cooling liquid channel 3. Preferably, the liquid spray ports 3-1 in the three spiral grooves 2-2 are distributed at intervals along the axial direction of the cutting part 2, so that the strength of the cutter and the uniformity of cooling liquid spray are ensured. In the present embodiment, as shown in fig. 4, the peripheral edge negative chamfer of the cutting edge 2-1 is 0 ° to make the peripheral edge stronger, the peripheral edge of the cutting edge 2-1 adopts a double-edged structure, which includes a first peripheral edge 2-1b and a second peripheral edge 2-1c, the peripheral edge negative chamfer width of the cutting edge 2-1 can be designed according to the chamfer width or the end edge cutting width, and the edge widths of the first peripheral edge 2-1b and the second peripheral edge 2-1c are generally designed to be 0.3-0.6 mm. The double-edged belt design is adopted, so that the guiding effect of the hole expanding cutter is better, the cutting heat dissipation effect of the cutter is improved, and meanwhile, the double-edged belt design has the burnishing effect, so that the machined hole wall has higher smoothness and cylindricity.
In addition, the efficient three-blade broaching tool capable of being intermittently machined according to the embodiment is preferably integrally machined and manufactured by a hard alloy material, and has the advantages of strong tool integrity, high strength and long service life. The diameter D1 'of the cutting part 2 of the three-edged reamer is larger than the diameter D' of the shank 1, and a relief chamfer is preferably provided between the shank 1 and the cutting part 2, and the angle of the relief chamfer is designed to be 15 °. The length L1 'and the diameter D1' of the cutting part 2 of the three-edged reamer, as well as the total length L2 'of the three-edged reamer and the diameter D' of the shank 1 can be determined according to specific needs. The end of the cutting part 2 is provided with a 45 DEG front chamfer. In addition, the core thickness diameter D2 'of the cutting part 2 is preferably designed to be 0.4 to 0.6 times the diameter D1' of the cutting part 2, so that the overall strength of the cutting part 2 is ensured.
[ example 2]
As shown in fig. 5 to 8, the efficient three-edged reamer capable of being intermittently machined according to the present embodiment is a three-edged reamer with layered machining edges, and has a basic structure similar to that of embodiment 1, except that: the front end of the cutting part 2 is provided with a layered structure, the layered structure is that the front end of the cutting part 2 is provided with a front cutting section 2-3 with the diameter D1 smaller than the diameter D2 of the main body part of the cutting part 2, and the cutting edge 2-1 on the front cutting section 2-3 is connected with the cutting edge 2-1 of the main body part of the cutting part 2 through a layered transition taper angle 2-4. By adopting the layered design, the cuttings are small broken cuttings, the cutting is efficient, the cuttings in the holes can be cleaned more easily, the method is particularly suitable for multi-channel intermittent hole machining, and the problem that the cuttings are remained to block the hole channels is effectively solved.
In addition, the angle of the front chamfer 2-5 at the end part of the front cutting section 2-3 is larger than the angle of the layered transition cone angle 2-4, the angle of the front chamfer 2-5 is preferably 45 degrees, the angle of the layered transition cone angle 2-4 is preferably 30 degrees, so that the cutting of the cutter is more stable, and the cutting efficiency is higher. A transition section 4 can be designed between the shank 1 and the cutting portion 2, the diameter D3 of the transition section 4 being slightly smaller than the diameter of the tail of the cutting portion 2. In the present embodiment, the core thickness diameter D4 of the cutting part 2 is preferably designed to be 0.4 to 0.6 times the diameter D2 of the main body portion of the cutting part 2, ensuring the overall strength of the cutting part 2. The diameter D1 and the length L4 of the shank 1, the diameter D3 and the length L3 of the transition section 4, the total length L2 of the cutting portion 2 and the front end diameter D2 of the main body portion of the cutting portion 2, and the diameter D1 and the length L1 of the front cutting section 2-3 are all as required.
The efficient three-blade broaching tool capable of carrying out intermittent machining, provided by the invention, adopts a three-blade unequal design and is matched with a back taper design with a large front part and a small back part of a cutting part, so that on one hand, vibration of broaching and cutting is reduced, the working stability of the three-blade broaching tool is improved, efficient large metal removal amount broaching machining can be carried out, on the other hand, a very good cutting guide effect is realized, the concentricity of an intermittently machined hole is ensured, accordingly, efficient large metal removal amount intermittent broaching machining can be carried out, and the machining precision and the machining efficiency are greatly improved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. The utility model provides a but three sword reamers of high-efficient of intermittent type processing, includes handle of a knife (1) and locates cutting part (2) of handle of a knife (1) front portion, cutting part (2) have three spiral cutting edges (2-1) that distribute circumferentially, have helicla flute (2-2) between two adjacent spiral cutting edges (2-1), its characterized in that: each cutting edge (2-1) is provided with an end edge (2-1a) arranged on the end surface of the three-edge hole expanding cutter and a circumferential edge arranged on the circumference of the three-edge hole expanding cutter, the end edges (2-1a) of the three cutting edges (2-1) are of an unequal structure on the end surface of the three-edge hole expanding cutter, and the difference between the maximum value and the minimum value of the included angle between the end edges (2-1a) of two adjacent cutting edges (2-1) on the end surface of the three-edge hole expanding cutter is 5-9 degrees; the cutting part (2) is provided with a back taper with a big front and a small back.
2. An efficient three-edged reamer capable of being intermittently machined according to claim 1, wherein: the back taper of the cutting part (2) is 100/(0.015-0.03) mm.
3. An efficient three-edged reamer capable of being intermittently machined according to claim 2, wherein: the included angles between the end edges (2-1a) of two adjacent cutting edges (2-1) are respectively 116.5 degrees, 118.5 degrees and 125 degrees.
4. An efficient three-edged reamer capable of being intermittently machined according to claim 1, wherein: the center of the cutter handle (1) and the center of the cutting part (2) are provided with a cooling liquid channel (3), and a liquid spraying port (3-1) communicated with the cooling liquid channel (3) is arranged in the spiral groove (2-2).
5. An efficient three-edged reamer capable of being intermittently machined according to claim 4, wherein: liquid spraying ports (3-1) in the three spiral grooves (2-2) are distributed at intervals along the axial direction of the cutting part (2).
6. An efficient three-edged reamer capable of being intermittently machined according to claim 1, wherein: the negative chamfering of the peripheral edge of the cutting edge (2-1) is 0 degree, and the peripheral edge of the cutting edge (2-1) adopts a double-edged structure and comprises a first peripheral edge (2-1b) and a second peripheral edge (2-1 c).
7. An efficient three-edged reamer capable of being intermittently machined according to any one of claims 1 to 6, wherein: the front end of the cutting part (2) is selectively provided with a layered structure, the layered structure is that a front cutting section (2-3) with the diameter D1 smaller than the diameter D2 of the main body part of the cutting part (2) is arranged at the front end of the cutting part (2), and a cutting edge (2-1) on the front cutting section (2-3) is connected with the cutting edge (2-1) of the main body part of the cutting part (2) through a layered transition taper angle (2-4).
8. An efficient three-edged reamer capable of being intermittently machined according to claim 7, wherein: the angle of the front chamfer (2-5) at the end part of the front cutting section (2-3) is larger than the angle of the layered transition cone angle (2-4).
9. An efficient three-edged reamer capable of being intermittently machined according to claim 8, wherein: the angle of the front chamfer (2-5) is 45 degrees, and the angle of the layered transition taper angle (2-4) is 30 degrees.
10. An efficient three-edged reamer capable of being intermittently machined according to claim 1, wherein: the three-blade broaching tool is integrally processed and manufactured by hard alloy materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911333171.5A CN110919058B (en) | 2019-12-23 | 2019-12-23 | High-efficiency three-blade reamer capable of being intermittently processed |
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| CN201911333171.5A CN110919058B (en) | 2019-12-23 | 2019-12-23 | High-efficiency three-blade reamer capable of being intermittently processed |
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| CN110919058B CN110919058B (en) | 2024-07-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288040A (en) * | 2022-01-19 | 2022-04-08 | 西安工程大学 | A high-efficiency, high thermal conductivity oral drilling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130004253A1 (en) * | 2011-07-02 | 2013-01-03 | Kennametal, Inc. | Drilling/reaming tool |
| CN106825699A (en) * | 2017-04-01 | 2017-06-13 | 山东大学 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
| CN106925819A (en) * | 2017-04-27 | 2017-07-07 | 沈阳飞机工业（集团）有限公司 | It is a kind of for machining titanium alloy and the reamer of carbon fibre laminates |
| CN211387075U (en) * | 2019-12-23 | 2020-09-01 | 常州利德切削技术有限公司 | Efficient three-blade broaching tool capable of performing intermittent machining |
-
2019
- 2019-12-23 CN CN201911333171.5A patent/CN110919058B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130004253A1 (en) * | 2011-07-02 | 2013-01-03 | Kennametal, Inc. | Drilling/reaming tool |
| CN106825699A (en) * | 2017-04-01 | 2017-06-13 | 山东大学 | One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool |
| CN106925819A (en) * | 2017-04-27 | 2017-07-07 | 沈阳飞机工业（集团）有限公司 | It is a kind of for machining titanium alloy and the reamer of carbon fibre laminates |
| CN211387075U (en) * | 2019-12-23 | 2020-09-01 | 常州利德切削技术有限公司 | Efficient three-blade broaching tool capable of performing intermittent machining |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114288040A (en) * | 2022-01-19 | 2022-04-08 | 西安工程大学 | A high-efficiency, high thermal conductivity oral drilling method |
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| CN110919058B (en) | 2024-07-30 |
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