CN209578276U - A kind of cutting tool and its cutting edge portion with Dual-head chamfering function - Google Patents
A kind of cutting tool and its cutting edge portion with Dual-head chamfering function Download PDFInfo
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- CN209578276U CN209578276U CN201920238788.8U CN201920238788U CN209578276U CN 209578276 U CN209578276 U CN 209578276U CN 201920238788 U CN201920238788 U CN 201920238788U CN 209578276 U CN209578276 U CN 209578276U
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Abstract
The utility model discloses a kind of cutting tool and its cutting edge portion with Dual-head chamfering function, cutting edge portion includes cutter body and several cutting edges in cutter body, cutting edge is helical form, each cutting edge is circumferentially set to the outer surface of cutter body along the center line of cutter body, is equipped with chip space between two neighboring cutting edge；Cutter body includes body front part, interconnecting piece and back body, body front part includes the front end face and the first frustum of a cone for being gradually reduced from front to back of outer diameter for being connected to interconnecting piece, back body includes the rear end face and the second frustum of a cone for being gradually increased from front to back of outer diameter for being connected to interconnecting piece, the front end of cutting edge is set to the side of body front part, and side of the cutting edge successively along the side of body front part, the side of interconnecting piece and back body extends.The utility model has the following beneficial effects: the manufacturing procedure of reaming, upper chamfering and lower chamfering can be completed at the same time, save tool changing and to the knife time, improve production efficiency.
Description
Technical field
The utility model relates to delicate machine tools technical fields, more particularly to a kind of cutting with Dual-head chamfering function
Cutting knife tool and its cutting edge portion.
Background technique
In the prior art, when processing pore structure using Conventional cutting tools, it usually needs be related to drilling, reaming and chamfering three
A manufacturing procedure, and correspond to each manufacturing procedure and be required to replace different cutting tools, this not only will increase installation cutter
Time and to the knife time, production efficiency is reduced, and then also makes that the production cost increases；In addition, when being added with traditional cutting tool
When the hard brittle prods such as work glass, ceramics or sapphire, production efficiency is lower, and the abrasion of cutting tool is larger, bite
The service life of tool reduces.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of bite with Dual-head chamfering function
Tool and its cutting edge portion can integrate reaming and upper and lower chamfering function, improve processing efficiency.
To achieve the goals above, the first aspect of the utility model provides a kind of cutting edge portion for cutting tool,
It includes cutter body and several cutting edges in the cutter body, and the cutting edge is helical form, each cutting
Sword is circumferentially set to the outer surface of the cutter body along the center line of the cutter body, between the two neighboring cutting edge
Equipped with chip space；
The cutter body includes being sequentially connected from front to back and coaxial body front part, interconnecting piece and back body, institute
State that interconnecting piece is cylindrical, the body front part includes the first frustum of a cone for being connected to the front end face of the interconnecting piece, described
The outer diameter of first frustum of a cone is gradually reduced from front to back, and the back body includes the rear end face for being connected to the interconnecting piece
The outer diameter of second frustum of a cone, second frustum of a cone is gradually increased from front to back；
The front end of the cutting edge is set to the side of the body front part, and the cutting edge is successively along the body front part
Side, the side of the interconnecting piece and the side of the back body extend, the rear end of the cutting edge is set to the main body
The side at rear portion.
Preferably, the cutting edge is shaped in the cutter body.
Preferably, the material of the cutting edge portion is polycrystalline diamond.
Preferably, the outer diameter of first frustum of a cone rear end is equal with the outer diameter of the interconnecting piece, and described
The outer diameter of two frustum of a cone front ends is equal with the outer diameter of the interconnecting piece.
Preferably, the body front part further includes the first circle for being connected to the front end face of first frustum of a cone
Cylinder, the back body further include the second cylindrical body for being connected to the rear end face of second frustum of a cone.
Preferably, the outer diameter of first cylindrical body is equal with the outer diameter of first frustum of a cone front end, institute
The outer diameter for stating the second frustum of a cone front end is equal with the outer diameter of the interconnecting piece.
Preferably, the front end of the cutting edge is set on the side of first cylindrical body, and the cutting
Sword is successively along the side of first cylindrical body, the side of first frustum of a cone, the side of the interconnecting piece and described
The side of two frustum of a cones extends, and the rear end of the cutting edge is set on the side of second frustum of a cone.
Preferably, between the side of first frustum of a cone and the central axis of the cutter body and described
Angle between the side of second frustum of a cone and the central axis of the cutter body is 30 °~60 °.
Preferably, the front end of the cutting edge is arranged along the edge of the front end face of the body front part.
Preferably, the maximum outside diameter of the body front part is less than the maximum outside diameter of the back body.
Preferably, the maximum outside diameter of the cutter body is the ㎜ of 1 ㎜~20, and the length of the cutter body is
The ㎜ of 1.5 ㎜~7.
Preferably, the tread of the cutting edge is the ㎜ of 0.01 ㎜~0.5, a length of 1.2 ㎜ of the sword of the cutting edge
~6 ㎜, the groove depth of the chip space are the ㎜ of 0.05 ㎜~0.20, and the groove width of the chip space is the ㎜ of 0.1 ㎜~0.35.
Preferably, the hand of spiral of the cutting edge is left-handed or dextrorotation, and the helical angle of the cutting edge is
20 °~65 °.
Same purpose, the second aspect of the utility model also provide a kind of cutting tool comprising tool shank and peace
After cutting edge portion as described in relation to the first aspect loaded on the tool shank front end, the tool shank and the cutter body
End face connection.
Compared with prior art, the utility model has the beneficial effects that:
In cutting tool in the utility model embodiment, cutting edge portion include cutter body and be set to cutter body table
Several cutting edges on face, several cutting edges are circumferentially distributed along the center line of cutter body, and multiple cutting edges can be born jointly
Biggish cutting force is suitable for higher cutting speed and the biggish amount of feeding, improves the service life of cutting tool；In addition,
Cutter body includes sequentially connected body front part, interconnecting piece and back body from front to back, and body front part passes through first section
The front end face of head circular cone and interconnecting piece connects, and back body is connected by the rear end face of the second frustum of a cone and interconnecting piece, and first
It is in certain between the side of frustum of a cone and the side of interconnecting piece, between the side of the second frustum of a cone and the side of interconnecting piece
Angle, cutting edge successively extend to interconnecting piece and back body from body front part, and cutting edge is located on the first frustum of a cone side
And the second part on frustum of a cone side is respectively utilized to complete lower chamfering and upper chamfering in pore structure, and be set on interconnecting piece
Cutting edge part then achievable reaming process, reaming, upper chamfering and lower chamfering can be completed at the same time using the cutting edge portion,
Tool change time can be reduced and to the knife time, shorten process time, so that processing efficiency be made to increase substantially.
It further, can be in the outer surface processing quantity of cutter body by cutting edge and cutter body using being integrally formed
More cutting edge can be improved the integral strength of cutting tool, increase the service life of cutting tool.
Further, cutting edge portion is made of polycrystalline diamond material, can further increase cutting edge hardness and
Intensity improves machining accuracy and processing efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of cutting edge portion in the utility model embodiment；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is cross-sectional view of the cutting edge portion in Fig. 1 along interconnecting piece；
Fig. 4 is a kind of structural schematic diagram of cutting tool in the utility model embodiment.
In figure, 1, cutting edge portion；10, cutter body；11, body front part；111, the first frustum of a cone；112, the first cylinder
Body；12, interconnecting piece；13, back body；131, the second frustum of a cone；132, the second cylindrical body；20, cutting edge；21, lower chamfering
Section；22, reaming section；23, upper chamfering section；30, chip space；2, tool shank.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.It should be understood that using term in the utility model
" first ", " second " etc. describe various information, but these information should not necessarily be limited by these terms, these terms are only used to will be same
The information of type is distinguished from each other out.For example, " first " information can also be claimed in the case where not departing from the scope of the utility model
Similar for " second " information, " second " information can also be referred to as " first " information.
In addition, it is necessary to illustrate, in the description of the utility model, term " front end " and " rear end " refer to bite
Tool is " front end " close to one end of workpieces processing in use process, is " rear end " away from one end of workpieces processing.
As shown in Figure 1-Figure 3, the first aspect of the utility model embodiment provides a kind of cutting edge for cutting tool
Portion 1 comprising cutter body 10 and several cutting edges 20 in the cutter body 10, the cutting edge 20 are spiral
Shape, each cutting edge 20 are circumferentially set to the outer surface of the cutter body 10, phase along the center line of the cutter body 10
It is equipped with chip space 30 between adjacent two cutting edges 20, in the present embodiment, several spiral helicine cutting edges 20 are led along cutting
The central axis of body 10 is circumferentially distributed, and multiple cutting edges 20 can bear biggish cutting force jointly, is suitable for higher cutting speed
With the biggish amount of feeding, the service life of cutting tool can be improved；Illustratively, when be provided with 30 in cutting edge portion 1~
When 50 cutting edges 20, the product surface roughness after processing can reach 30nm~350nm, 10~20 times higher than conventional tool.
During the cutting process, the rotation of cutter body 10 drives each cutting edge 20 to rotate, cutting edge 20 to workpiece to be processed into
The removal of row material, cutting swarf are discharged from chip space 30, can be avoided cutting swarf to adverse effect caused by process.
Further, the cutter body 10 includes being sequentially connected from front to back and coaxial body front part 11, interconnecting piece
12 and back body 13, the interconnecting piece 12 is cylindrical, i.e. the outer diameter of interconnecting piece 12 remains unchanged from front to back, the main body
Front 11 includes the first frustum of a cone 111 for being connected to the front end face of the interconnecting piece 12, first frustum of a cone 111 it is outer
Diameter is gradually reduced from front to back, and the back body 13 includes the second frustum of a cone for being connected to the rear end face of the interconnecting piece 12
131, the outer diameter of second frustum of a cone 131 is gradually increased from front to back；The front end of the cutting edge 20 is set to the main body
The side of front 11, and the cutting edge 20 is successively along the side of the body front part 11, the side of the interconnecting piece 12 and institute
The side for stating back body 13 extends, and the rear end of the cutting edge 20 is set to the side of the back body 13.In the present embodiment,
Cutting edge 20 includes sequentially connected three sections from front to back, for ease of description, cutting edge 20 is set to the portion of body front part 11
Divide and be defined as lower chamfering section 21, the part that cutting edge 20 is set to interconnecting piece 12 is defined as reaming section 22, cutting edge 20 is set to
The part of back body 13 is defined as chamfering section 23；Wherein, lower chamfering section 21 and upper chamfering section 23 can be respectively completed lower chamfering
Process and upper chamfering process, reaming section 22 are used for reaming.
Based on the above-mentioned technical proposal, a kind of cutting edge portion 1 is provided in the present embodiment, reaming, upper chamfering can be used for simultaneously
And lower chamfering, it is only necessary to cutter can be completed using one the processing of pore structure, much knives that no replacement is required tool to respectively reaming and
Chamfering can save tool change time and to the knife time, shorten process time, improve production efficiency, reduce production cost.
In the present embodiment, it is preferable that the outer diameter phase of the outer diameter and the interconnecting piece 12 of 111 rear end of the first frustum of a cone
Deng the outer diameter of 131 front end of the second frustum of a cone is equal with the outer diameter of the interconnecting piece 12, can guarantee to be processed
In pore structure, the central part of upper chamfering, lower chamfered part and pore structure is smooth transition.Alternatively, may be used
By the outer diameter of 131 front end of the outer diameter of 111 rear end of the first frustum of a cone and the second frustum of a cone be disposed as less times greater than or it is small
In the outer diameter of interconnecting piece 12.
Specifically, the cutting edge 20 is shaped in cutter body 10, can simplify production technology, and can be identical
More cutting edge 20 is set in the cutter body 10 of outer diameter, and the design of the form and structure of cutting edge 20 is more more
Sample.Illustratively, the integral formation method of cutter body 10 and cutting edge 20 can be casting, increasing material manufacturing, can also pass through
Cutting edge 20 is formed through removal material post-processing on the blank of cutting edge main body, such as milling, spark cutting, chemical attack
Deng.
In the present embodiment, it is preferable that the material of the cutting edge portion 1 is polycrystalline diamond, due to polycrystalline diamond material
Hardness it is high, the cutting hardness of cutting edge 20 can be improved, to effectively improve cutting precision and stock-removing efficiency, and be able to extend and make
Use the service life；In addition, the cutting edge portion 1 of polycrystalline diamond material is hard crisp especially suitable for processing glass, ceramics or sapphire etc.
Property product processing glass, ceramics or sapphire are added using the cutting tool in the present embodiment for universal cutter
Working hour, service life can be improved 8-10 times.
It is attached as shown in fig.1, between the side of first frustum of a cone 111 and the central axis of the cutter body 10
Angle is α, the taper of the lower chamfering section 21 of α namely cutting edge 20, the side of second frustum of a cone 131 and cutting master
Angle between the central axis of body 10 is β, the taper of the upper chamfering section 23 of β namely cutting edge 20；In order to reach institute by milling
The demand for needing molding pore structure, is disposed as 30 °~60 ° for α and β；Illustratively, α and β is 45 °.
Preferably, in the present embodiment, referring specifically to shown in attached drawing 1, the length L1 of the interconnecting piece 12 and the main body
The ratio range of the length L2 of front 11 is 2-5, and the length L1 of the interconnecting piece 12 is with the length L3's of the back body 13
Ratio range is 1.5-4；Length between three by the way that body front part 11, interconnecting piece 12 and back body 13 is rationally arranged is closed
System, the effective sword for capableing of the lower chamfering section 21 of reasonable layout cutting edge 20, reaming section 22 and upper chamfering section 23 is long, to meet needs
The specific requirements of molding pore structure.
In the present embodiment, the front end of the cutting edge 20 is set to the edge of the front end face of the body front part 11, and institute
The edge of the rear end of cutting edge 20 and the rear end face of back body 13 is stated at a distance, with the cutting tool that practices every conceivable frugality
Processing cost.
Illustratively, the body front part 11 in the present embodiment further includes being connected to first frustum of a cone 111
First cylindrical body 112 of front end face, the back body 13 further include the rear end face for being connected to second frustum of a cone 131
The front end of second cylindrical body 132, cutting edge 20 is set on the side of the first cylindrical body 112 along the edge of its front end face, and is cut
Cut sword 20 successively by the side of the first cylindrical body 112, the side of the first frustum of a cone 111, interconnecting piece 12 side and second
Behind the side of frustum of a cone 131, the rear end of cutting edge 20 is set to the connection of the second frustum of a cone 131 and the second cylindrical body 132
Place；Preferably, cutting edge 20 is located at the part on the first cylindrical body 112, and top surface is parallel with the central axis of cutter body 10.
In the present embodiment, it is preferable that the outer diameter of first cylindrical body 112 and 111 front end of the first frustum of a cone
Outer diameter is equal, and the outer diameter of second cylindrical body 132 is equal with the outer diameter of 131 rear end of the second frustum of a cone.Similarly,
It can set the outer diameter of the first cylindrical body 112 to differ with the outer diameter of 111 front end of the first frustum of a cone, and by the second cylindrical body
132 outer diameter is set as unequal with the outer diameter of 131 rear end of the second frustum of a cone.
Preferably, in the present embodiment, the maximum that the maximum outside diameter of the body front part 11 is less than the back body 13 is outer
Diameter.
In the present embodiment, the number of cutting edge 20 depends primarily on the size of cutter body 10 and the tread of cutting edge 20,
After the outer diameter of cutter body 10 determines, the tread of cutting edge 20 is smaller, then the number of cutting edge 20 is more；In order to meet
Process requirements, the maximum outside diameter of the cutter body 10 are the ㎜ of 1 ㎜~20, and the length L of the cutter body 10 is 1.5 ㎜~7
㎜, the tread a of the cutting edge 20 are the ㎜ of 0.01 ㎜~0.5, and the long Lr of sword of the cutting edge 20 is the ㎜ of 1.2 ㎜~6, the row
The groove depth b for considering slot 30 to be worth doing is the ㎜ of 0.05 ㎜~0.20, and the groove depth of chip space 30 should be long with the tread of corresponding cutting edge 20 and sword
Match, the groove width c of chip space 30 is the ㎜ of 0.1 ㎜~0.35；Based on the above-mentioned outer diameter to cutter body 10 and cutting edge 20
The restriction of tread, settable 6~200, even more cutting edge 20 in cutting edge portion 1.
It should be noted that in the present embodiment, the tread of cutting edge 20 refer between the two sides of cutting edge 20 away from
From being marked in fig. 3 with a, long front end to its rear end for referring to cutting edge 20 of the sword of cutting edge 20 is along cutter body 10
The distance of central axis direction, is marked with Lr in fig. 1.
Preferably, the helical angle of the cutting edge 20 in the present embodiment is 20 °~65 °, by suitably increasing spiral angle energy
The cutting force of cutter in process is enough allowed to reduce, cutter impact resistance is strong, prevents vibration knife, and can guarantee that better surface adds
Working medium amount improves the service life of cutting tool；Preferably, the helical angle of cutting edge 20 is 30 °, is based on this spiral angle, cuts
The velocity of discharge for cutting the intensity of sword 20, sharpness, the size of cutting force and cutting swarf is very ideal.
In addition, the direction of cutting edge 20 can be left-handed or right rotation in the present embodiment.
The present embodiment second aspect also provides a kind of cutting tool, referring specifically to shown in attached drawing 4 comprising tool shank
2 and be installed on the cutting edge portion 1 as described in the present embodiment first aspect of 2 front end of tool shank, the tool shank 2 with
The rear end face of the cutter body 10 connects.When tool shank 2 is clamped on Rotary milling devices, cutting edge portion can be driven
1 rotation, to carry out milling to product to be processed.
Cutting tool in the present embodiment, due to the cutting edge portion 1 including first aspect, with cutting edge portion 1
Whole beneficial effects, are not stated one by one herein.
To sum up, the utility model embodiment provides a kind of cutting tool and its cutting edge portion with Dual-head chamfering function,
By setting cutter body 10 to the three stage structure of body front part 11, interconnecting piece 12 and back body 13, before the main body
Portion 11 connect by the first frustum of a cone 111 with the front end face of interconnecting piece 12, back body 13 pass through the second frustum of a cone 131 and
The rear end face of interconnecting piece 12 connects, between the side of the first frustum of a cone 111 and the side of interconnecting piece 12, the second frustum of a cone
It is in a certain angle between 131 side and the side of interconnecting piece 12, and cutting edge 20 is from the successively company of extending to of body front part 11
In socket part 12 and back body 13, pass through the cutting edge 20 on the side of the first frustum of a cone 111 and the second frustum of a cone 131
The lower chamfering and upper chamfering that point can be respectively used in processing pore structure, and the cutting edge being set on 12 side of interconnecting piece 20
Divide and be then used for reaming, can be achieved at the same time reaming, upper chamfering and lower chamfering three process using this cutting edge portion 1, reduce and change
Knife time and to the knife time, process time can be shortened, processing efficiency increases substantially；In addition, several spiral helicine cutting edges
20 along cutter body 10 central axis it is circumferentially distributed, multiple cutting edges 20 can bear biggish cutting force jointly, be suitable for compared with
High cutting speed and the biggish amount of feeding, to improve the service life of cutting tool.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (14)
1. a kind of cutting edge portion for cutting tool, which is characterized in that including cutter body and be set in the cutter body
Several cutting edges, the cutting edge is helical form, and each cutting edge is circumferentially set to along the center line of the cutter body
The outer surface of the cutter body is equipped with chip space between the two neighboring cutting edge；
The cutter body includes being sequentially connected from front to back and coaxial body front part, interconnecting piece and back body, the company
Socket part is cylindrical, and the body front part includes the first frustum of a cone for being connected to the front end face of the interconnecting piece, and described first
The outer diameter of frustum of a cone is gradually reduced from front to back, the back body include be connected to the interconnecting piece rear end face second
The outer diameter of frustum of a cone, second frustum of a cone is gradually increased from front to back；
The front end of the cutting edge is set to the side of the body front part, and the cutting edge is successively along the side of the body front part
The side in face, the side of the interconnecting piece and the back body extends, and the rear end of the cutting edge is set to the back body
Side.
2. cutting edge portion as described in claim 1, which is characterized in that the cutting edge is shaped in the cutter body
On.
3. cutting edge portion as described in claim 1, which is characterized in that the material of the cutting edge portion is polycrystalline diamond.
4. cutting edge portion as described in claim 1, which is characterized in that the outer diameter of first frustum of a cone rear end and the company
The outer diameter of socket part is equal, and the outer diameter of second frustum of a cone front end is equal with the outer diameter of the interconnecting piece.
5. cutting edge portion as described in claim 1, which is characterized in that the body front part further includes being connected to described first section
First cylindrical body of the front end face of head circular cone, the back body further includes the rear end face for being connected to second frustum of a cone
Second cylindrical body.
6. cutting edge portion as claimed in claim 5, which is characterized in that the outer diameter of first cylindrical body and first butt
The outer diameter of conical nose is equal, and the outer diameter of second frustum of a cone front end is equal with the outer diameter of the interconnecting piece.
7. cutting edge portion as claimed in claim 5, which is characterized in that the front end of the cutting edge is set to first cylinder
On the side of body, and the cutting edge is successively along the side of first cylindrical body, the side, described of first frustum of a cone
The side of interconnecting piece and the side of second frustum of a cone extend, and the rear end of the cutting edge is set to the second butt circle
On the side of cone.
8. cutting edge portion as described in claim 1, which is characterized in that the side of first frustum of a cone and the cutting are led
Angle between the central axis of body and between the side of second frustum of a cone and the central axis of the cutter body is
30 °~60 °.
9. cutting edge portion as described in claim 1, which is characterized in that the front end of the cutting edge is before the body front part
The edge of end face is arranged.
10. cutting edge portion as described in claim 1, which is characterized in that the maximum outside diameter of the body front part is less than the master
The maximum outside diameter at body rear portion.
11. cutting edge portion as described in claim 1, which is characterized in that the maximum outside diameter of the cutter body is 1 ㎜~20
㎜, the length of the cutter body are the ㎜ of 1.5 ㎜~7.
12. cutting edge portion as claimed in claim 11, which is characterized in that the tread of the cutting edge is the ㎜ of 0.01 ㎜~0.5,
The a length of ㎜ of 1.2 ㎜~6 of the sword of the cutting edge, the groove depth of the chip space are the ㎜ of 0.05 ㎜~0.20, the slot of the chip space
Width is the ㎜ of 0.1 ㎜~0.35.
13. such as the described in any item cutting edge portion of claim 1-12, which is characterized in that the hand of spiral of the cutting edge is a left side
Rotation or dextrorotation, the helical angle of the cutting edge are 20 °~65 °.
14. a kind of cutting tool, which is characterized in that including tool shank and be installed on the tool shank front end as right is wanted
The described in any item cutting edge portion of 1-13 are sought, the tool shank is connect with the rear end face of the cutter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920238788.8U CN209578276U (en) | 2019-02-25 | 2019-02-25 | A kind of cutting tool and its cutting edge portion with Dual-head chamfering function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920238788.8U CN209578276U (en) | 2019-02-25 | 2019-02-25 | A kind of cutting tool and its cutting edge portion with Dual-head chamfering function |
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| CN209578276U true CN209578276U (en) | 2019-11-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676181A (en) * | 2019-02-25 | 2019-04-26 | 汇专绿色工具有限公司 | A kind of cutting tool and its cutting edge portion with Dual-head chamfering function |
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2019
- 2019-02-25 CN CN201920238788.8U patent/CN209578276U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676181A (en) * | 2019-02-25 | 2019-04-26 | 汇专绿色工具有限公司 | A kind of cutting tool and its cutting edge portion with Dual-head chamfering function |
| WO2020173029A1 (en) * | 2019-02-25 | 2020-09-03 | 汇专科技集团股份有限公司 | Cutting tool having double-headed chamfering function and cutting edge portion thereof |
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