CN107096931A - A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 - Google Patents
A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 Download PDFInfo
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- CN107096931A CN107096931A CN201710351385.XA CN201710351385A CN107096931A CN 107096931 A CN107096931 A CN 107096931A CN 201710351385 A CN201710351385 A CN 201710351385A CN 107096931 A CN107096931 A CN 107096931A
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- Prior art keywords
- microflute
- cutting
- lathe tool
- cutting edge
- titanium alloy
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/08—Rake or top surfaces
- B23B2200/086—Rake or top surfaces with one or more grooves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention discloses a kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4.Including rake face（1）, rake face（1）Edge have main cutting edge（2）, rake face（1）Cutting edge near field（4）Dispose into microflute（5）；Described microflute（5）In spoon-shaped structure.The characteristics of present invention has reduction cutting cooling and improves tool life.
Description
Technical field
The present invention relates to a kind of cutting tool in machining field, particularly a kind of hard for cutting titanium alloy TC 4
Alloy microflute lathe tool.
Background technology
Machining is the Main Means that machinery manufacturing industry material is removed, and the quality of cutting tool directly affects cutting
The efficiency and crudy of processing.In machining, cutting edge is used as the main portions for removing material, cutting edge and cutting edge
(ellipse is irised out in the tiny area of cutting edge, such as Fig. 2 on cutting edge near field, cutter rake face in neighbouring rake face region
Region) working environment it is the most severe, and its structure is directly connected to cutting wear, so rational cutting edge is near
Domain structure design is particularly important to the cutting ability for lifting cutter.Current industry is mainly concentrated to the structure design of cutter rake face
In the design of antifriction groove and chip-breaker, the former is primarily upon how reducing the friction between cutter and chip underlying metal reaching drop
Low cutting temperature improves the purpose of tool life, and the latter is primarily upon how rationally designing chip-breaker so that chip can be according to
It is required that fractureing or crimping to avoid influence of the chip to machined surface quality.During machining, tool temperature can be raised drastically, preceding
The temperature rise of knife face is particularly evident, and this can not only reduce cutting wear, but also can reduce crudy.By it is above-mentioned can
Know, current industry is not carried out also using reducing Tool in Cutting temperature as direct purpose to rake face of turning cutter cutting edge near field micro-structural
The achievement in research of design.
The content of the invention
The present invention provides a kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4.The present invention has reduction cutting temperature
With raising tool life feature.
Technical scheme：A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4, including rake face, preceding knife
The edge in face is main cutting edge, and rake face cutting edge near field is disposed into microflute；Described microflute is in spoon-shaped structure.
In the hard alloy microflute lathe tool of foregoing cutting titanium alloy TC 4, described microflute is perpendicular to the flat of rear knife face
Cross section profile on face is asymmetrical curve type, and the bottom surface of microflute is in curved surface, and the depth capacity H of microflute is 0.12~0.18mm.
In the hard alloy microflute lathe tool of foregoing cutting titanium alloy TC 4, the length L of described microflute for 1.2~
3.0mm, the width W of microflute1For 0.35~0.60mm, total groove width W2For 0.55~0.70mm.
In the hard alloy microflute lathe tool of foregoing cutting titanium alloy TC 4, the close main cutting edge side of described microflute
Outer rim away from main cutting edge apart from T1It is micro- close to radiuses such as curved portion R and the tool arcs of point of a knife for 0.07~0.12mm
Groove high order end is apart from front cutting edge apart from T2For 0.13mm.
In the hard alloy microflute lathe tool of foregoing cutting titanium alloy TC 4, the outer rim (3) of described microflute (5) and leading is cut
It is -6 °~9 ° to cut the place plane of sword (2) and the angle of horizontal plane.
In the hard alloy microflute lathe tool of foregoing cutting titanium alloy TC 4, along master after knife face normal direction observation, described master
The linear type of cutting edge.
Beneficial effect：Compared with prior art, the present invention in rake face of turning cutter cutting edge near field by inserting spoon type microflute
Structure, make cutter when cutting aero titanium alloy TC4, and knife-bits actual contact area (region be located at cutting edge near field) is cut
Temperature reduction is cut to effectively improve cutting wear.Cutter is in working angles, and knife-bits contact zone can produce localized hyperthermia
High pressure, promotes knife-bits contact interface to occur severe friction, and then produce a large amount of cutting heats；Primary deformation zone is because by bright simultaneously
Aobvious ess-strain effect, the anti-shearing work of deformation almost all of workpiece material is converted into cutting heat, by the transmission of heat, most
Cause the rise of Tool in Cutting temperature eventually.In the present invention, applicant analyzes hair by cutting aero titanium alloy TC4 many experiments
Existing, when the distance away from 0.07~0.12mm of main cutting edge (optimal is 0.10mm) on rake face, (distance is close to main cutting
Distance of the outer rim of sword side away from main cutting edge, i.e. T1) spoon type microflute is inserted, the depth capacity H of microflute is in 0.12~0.18mm
Between and microflute length L be 1.2~3.0mm, the width W of microflute1For 0.35~0.60mm, total groove width W2For 0.55~0.70mm
When, and the new micro groove structure has more apparent cooling on the premise of the powder compacting requirement of powder metallurgy pressing technique is met
Effect.It is primarily due to：1) presence of microflute increases chip and cutter rake face contact area, reduces cutter in knife-bits
The direct stress in contact position area, when the direct stress gradually decreases to a certain critical value so that rubbed in script knife-bits contact zone part
Regioinvertions are that external friction region is that cohesive friction zone is converted into sliding friction area, because interior friction area is the master of cutter heat
Originate, the reduction in the region result in tool temperature reduction；2) presence of microflute changes the thermo-mechanical Coupled of tool cutting process
Cooperation is used, and is changed primary deformation zone stress-strain state, is reduced primary deformation zone detrusion degree, so as to reduce cutting
The generation of heat.Comprehensive function make it that Tool in Cutting temperature is effectively reduced, and then effectively improves lathe tool durability.
The present invention is in actual production, and microflute also has the function of chip breaking：The new micro groove structure of cutter rake face to cut
Chip is along its surface flow during cutting, and flowing of the space curved surface to chip produce it is certain stop and guiding function from
And make it that chip is crimped, when chip flows through microflute outward flange, by the high stress at this, when chip is because being collected
When middle stress and the strain that occurs reach its ultimate strain value, chip is to fracture.Compared with chip-breaker and antifriction groove,
The difference of the spoon type microflute of the present invention, in addition to above-mentioned design principle, is different from chip curling groove (chip-breaker), its major embodiment
On structure dimension：I.e. the location of new microflute of the invention is main in knife-bits contact zone of rake face cutting edge near field,
Yardstick is much smaller than chip curling groove (chip-breaker), can overlap the microflute according to actual cut situation and design in existing chip curling groove (chip breaking
Groove) in.The new microflute of the present invention is also different from antifriction groove, is mainly reflected in knife bits contact condition, yardstick and quantity arrangement：
I.e. antifriction groove region knife bits contact condition is generally an incomplete contact between such as contact or linear contact lay, and the design microflute knife bits contact shape
State be nearly Full connected (as shown in Fig. 6~Figure 11), increase chip and cutter rake face contact area, reduce cutter knife-
Consider the direct stress in contact position area to be worth doing.It follows that the microflute of the present invention is less than in chip-breaker, principle on yardstick is different from antifriction
Groove, thus further effectively ensure that the intensity of lathe tool.
In order to be able to more preferably prove beneficial effects of the present invention, applicant has done following emulation experiment：Use former hard alloy
Lathe tool (hereinafter referred to as former lathe tool) carries out cutting aero titanium alloy TC4 simulation comparison experiments with the present invention.Above-mentioned former lathe tool with
Each group of contrast experiment of the lathe tool of the present invention is in identical machining condition (cutting data, other cutter geometry in addition to microflute
Structure, cutter and workpiece material etc.) under carry out, cutting aero titanium alloy TC4 simulation comparison experiment scheme and the result such as institute of table 1
Show.
The simulation experiment result of table 1
To sum up learn that the lathe tool cooling-down effect of the present invention is relatively obvious.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation at Fig. 1 M；
Structural representation when Fig. 3 is negative rake on Fig. 2 Section A-A；
Structural representation when Fig. 4 is zero anterior angle on Fig. 2 Section A-A；
Structural representation when Fig. 5 is positive rake angle on Fig. 2 Section A-A；
Fig. 6 is Vc=60m/min, f=0.2mm, ap=2mm and γ0For -6 ° when, knife-bits contact condition of microflute lathe tool
Analogous diagram；
Fig. 7 is Vc=40m/min, f=0.15mm, ap=1.5mm and γ0For -6 ° when, the knife of microflute lathe tool-bits contact shape
State analogous diagram；
Fig. 8 is Vc=60m/min, f=0.2mm, ap=2mm and γ0For 0 ° when, knife-bits contact condition of microflute lathe tool shows
It is intended to；
Fig. 9 is Vc=40m/min, f=0.15mm, ap=1.5mm and γ0For 0 ° when, the knife of microflute lathe tool-bits contact shape
State analogous diagram；
Figure 10 is Vc=60m/min, f=0.2mm, ap=2mm and γ0For 6 ° when, knife-bits contact condition of microflute lathe tool
Analogous diagram；
Figure 11 is Vc=40m/min, f=0.15mm, ap=1.5mm and γ0For 6 ° when, the knife of microflute lathe tool-bits contact shape
State analogous diagram.
Mark in accompanying drawing for：1- rake faces, 2- main cutting edges, 3- outer rims, 4- cutting edge near field, 5- microflutes, 6- points of a knife,
7- bottom surfaces.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment：A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4, it is constituted as shown in figure 1, including rake face
1, the edge of rake face 1, which has, is provided with microflute 5 at main cutting edge 2, the cutting edge near field 4 of rake face 1；Described microflute 5 is not in right
Claim and do not wait deep spoon type micro groove structure (as shown in Figure 2).
Cross section profile of the foregoing microflute 5 (as in Figure 3-5) in the plane perpendicular to rear knife face is asymmetrical curve
Type, the bottom surface 7 of microflute 5 is in curved surface, and the depth capacity H of microflute 5 is 0.12~0.18mm, and preferred value is 0.14mm.
The length L of foregoing microflute 5 is 1.2~3.0mm, and optimal is 1.7mm；The width W of microflute 51For 0.35~
0.60mm, total groove width W2For 0.55~0.70mm (as shown in Figure 2), W1Preferred value is 0.54mm, W2Preferred value is 0.64mm.
The microflute outer rim 3 of the side of close main cutting edge 2 of foregoing microflute 5 is away from main cutting edge 2 apart from T1(such as Fig. 2 institutes
Show) it is 0.07~0.12mm, preferred value is 0.1mm.The radiuses such as curved portion R and tool arc close to point of a knife 6.Microflute is most left
End is apart from front cutting edge apart from T2For 0.13mm.
The outer rim 3 of foregoing microflute 5 is angle-style before positive and negative or zero with the type of attachment of main cutting edge 2, specifically, described
The outer rim 3 of microflute 5 and the angle of the place plane of main cutting edge 2 and horizontal plane be -6 °~9 °, zero anterior angle be preferred value (such as
Shown in Fig. 3-5).
Along the observation of knife face direction, the foregoing linear type of main cutting edge 2 after master.
Above microflute groove parameters preferred value is specific embodiment scheme, and parameter range of choice represents the general structure of microflute
Scheme.Meanwhile, the hard alloy microflute lathe tool of the cutting titanium alloy TC 4 is equally applicable to other similar titanium alloys of performance (such as
TC3, TC10 etc.) machining.
Claims (6)
1. a kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4, it is characterised in that：Including rake face（1）, rake face（1）
Edge be main cutting edge（2）, rake face（1）Cutting edge near field（4）Dispose into microflute（5）；Described microflute（5）In spoon type
Structure.
2. the hard alloy microflute lathe tool of cutting titanium alloy TC 4 according to claim 1, it is characterised in that：Described is micro-
Groove（5）Cross section profile in the plane perpendicular to rear knife face is asymmetrical curve type, microflute（5）Bottom surface（7）It is bent in space
Face, microflute（5）Depth capacity H be 0.12~0.18mm.
3. the hard alloy microflute lathe tool of the cutting titanium alloy TC 4 according to claim 1 and 2, it is characterised in that：Described
Microflute（5）Length L be 1.2~3.0mm, microflute（5）Width W1For 0.35~0.60mm, total groove width W2For 0.55 ~
0.70mm。
4. the hard alloy microflute lathe tool of the cutting titanium alloy TC 4 according to claim 1 and 2, it is characterised in that：Described
Microflute（5）Close main cutting edge（2）The outer rim of side（3）Away from main cutting edge（2）Apart from T1It is close for 0.07~0.12mm
Point of a knife（6）The radius such as curved portion R and tool arc；Microflute（5）High order end is apart from front cutting edge apart from T2For 0.13mm.
5. the hard alloy microflute lathe tool of the cutting titanium alloy TC 4 according to claim 1 and 2, it is characterised in that：Described
Microflute（5）Outer rim（3）And main cutting edge（2）Place plane and the angle of horizontal plane be -6 ° ~ 9 °.
6. the hard alloy microflute lathe tool of the cutting titanium alloy TC 4 according to claim 1 and 2, it is characterised in that：Along after main
Knife face normal direction is observed, described main cutting edge（2）Linear type.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351385.XA CN107096931A (en) | 2017-05-18 | 2017-05-18 | A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 |
| PCT/CN2018/073607 WO2018210000A1 (en) | 2017-05-18 | 2018-01-22 | Hard alloy micro-groove turning tool for cutting titanium alloy tc4 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351385.XA CN107096931A (en) | 2017-05-18 | 2017-05-18 | A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107096931A true CN107096931A (en) | 2017-08-29 |
Family
ID=59668971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710351385.XA Pending CN107096931A (en) | 2017-05-18 | 2017-05-18 | A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107096931A (en) |
| WO (1) | WO2018210000A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018210000A1 (en) * | 2017-05-18 | 2018-11-22 | 贵州大学 | Hard alloy micro-groove turning tool for cutting titanium alloy tc4 |
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| CN202212589U (en) * | 2011-06-13 | 2012-05-09 | 华南理工大学 | Cutter for cutting titanium alloy |
| WO2015119259A1 (en) * | 2014-02-07 | 2015-08-13 | 株式会社タンガロイ | Cutting insert |
| CN106475584A (en) * | 2016-11-11 | 2017-03-08 | 贵州大学 | A kind of micro structure carbide-tipped lathe tool piece of cutting GH4169 alloy |
| CN106493395A (en) * | 2016-11-11 | 2017-03-15 | 贵州大学 | A kind of hard alloy microflute lathe tool of cutting high strength steel alloy 40CrMnMo |
| CN106493396A (en) * | 2016-11-11 | 2017-03-15 | 贵州大学 | A kind of 304 stainless micro-structural carbide-tipped lathe tool pieces of cutting |
| CN106670513A (en) * | 2016-11-11 | 2017-05-17 | 贵州大学 | Microstructural cemented carbide turning blade for cutting 211Z aluminum alloy |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3479688B2 (en) * | 2001-03-02 | 2003-12-15 | 独立行政法人産業技術総合研究所 | Difficult-to-cut material cutting tools |
| US9649692B2 (en) * | 2012-04-23 | 2017-05-16 | Sumitomo Electric Hardmetal Corp. | Sintered cubic boron nitride compact tool |
| CN107096931A (en) * | 2017-05-18 | 2017-08-29 | 贵州大学 | A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 |
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2017
- 2017-05-18 CN CN201710351385.XA patent/CN107096931A/en active Pending
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2018
- 2018-01-22 WO PCT/CN2018/073607 patent/WO2018210000A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202212589U (en) * | 2011-06-13 | 2012-05-09 | 华南理工大学 | Cutter for cutting titanium alloy |
| WO2015119259A1 (en) * | 2014-02-07 | 2015-08-13 | 株式会社タンガロイ | Cutting insert |
| CN106475584A (en) * | 2016-11-11 | 2017-03-08 | 贵州大学 | A kind of micro structure carbide-tipped lathe tool piece of cutting GH4169 alloy |
| CN106493395A (en) * | 2016-11-11 | 2017-03-15 | 贵州大学 | A kind of hard alloy microflute lathe tool of cutting high strength steel alloy 40CrMnMo |
| CN106493396A (en) * | 2016-11-11 | 2017-03-15 | 贵州大学 | A kind of 304 stainless micro-structural carbide-tipped lathe tool pieces of cutting |
| CN106670513A (en) * | 2016-11-11 | 2017-05-17 | 贵州大学 | Microstructural cemented carbide turning blade for cutting 211Z aluminum alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018210000A1 (en) * | 2017-05-18 | 2018-11-22 | 贵州大学 | Hard alloy micro-groove turning tool for cutting titanium alloy tc4 |
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|---|---|
| WO2018210000A1 (en) | 2018-11-22 |
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Application publication date: 20170829 |
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