CN106475584B - A kind of micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy - Google Patents
A kind of micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy Download PDFInfo
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- CN106475584B CN106475584B CN201610995294.5A CN201610995294A CN106475584B CN 106475584 B CN106475584 B CN 106475584B CN 201610995294 A CN201610995294 A CN 201610995294A CN 106475584 B CN106475584 B CN 106475584B
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- Prior art keywords
- microflute
- cutting
- micro
- cutting edge
- rake face
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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
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/04—Overall shape
- B23B2200/0447—Parallelogram
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
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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 micro-structure carbide-tipped lathe tool pieces of cutting GH4169 alloy.Including rake face (1), the edge of rake face (1) is equipped with main cutting edge (2), and microflute (5) is equipped at the cutting edge near field (4) of rake face (1)；The microflute (5) is in asymmetric, the whole wide and deep J-type micro-structure such as not.The present invention has the characteristics that reduce cutting cooling and improves tool life.
Description
Technical field
The present invention relates to a kind of cutting tool in machining field, especially a kind of cutting GH4169 alloy
Micro-structure carbide-tipped lathe tool piece.
Background technology
Machining is the main means of machinery manufacturing industry material removal, and the quality of cutting tool directly affects cutting
The efficiency and processing quality of processing.In the cutting process, main portions of the cutting edge as material removal, cutting edge and cutting edge
(cutting edge near field refers to the tiny area on cutter rake face close to cutting edge, such as dotted line packet in Fig. 2 in neighbouring rake face region
The region enclosed) working environment is the most severe, and its structure is directly related to the efficiency and quality of cutting wear and processing
Processing, so rational cutting edge and cutting edge near field structure design are particularly important to the performance for promoting lathe tool.Industry pair at present
The structure design of cutter rake face is concentrated mainly on the design of antifriction slot and chip-breaker, the former be primarily upon how to reduce cutter with
The friction of chip bottom metal improves durability to achieve the purpose that reduce cutting temperature, and the latter, which is concerned with how to rationally design, to be made
Chip can fracture or be bent as requested, avoid influencing processing and machined surface quality.When machining, the temperature meeting of cutter
It drastically increases, this can not only reduce cutting wear, but also can reduce machining quality.Industry mainly uses at present
Cooling means are to be cooled down using coolant liquid in processing, the cool-down method can only reduce lathe tool surface temperature you.By above-mentioned
It is found that how industry reduces structure design of the cutting temperature to lathe tool cutting edge near field not yet at present.
Invention content
The object of the present invention is to provide a kind of rake face cutting edge near field micro-structure of cutting GH4169 alloy is hard
Matter alloy turning insert.The present invention has the characteristics that reduce cutting temperature and improves tool life.
Technical scheme of the present invention：A kind of micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy, including it is preceding
The edge of knife face, rake face is equipped with main cutting edge, and microflute is equipped at the cutting edge near field of rake face；The microflute is not in right
Claim, the whole not wide and deep J-type micro-structure such as not.
In the micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy above-mentioned, the microflute is on rake face
Section be asymmetrical curve type, the bottom surface of microflute is in plane or cambered surface, and the depth capacity H of microflute is 0.27~0.34mm.
In the micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy above-mentioned, the length L of the microflute is
The width W of 2.15~2.66mm, microflute are 0.89~1.21mm.
In the micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy above-mentioned, the microflute is cut close to master
It is 0.06~0.09mm to cut minimum range T of the outer rim of sword side away from main cutting edge.
In the micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy above-mentioned, the outer rim of the microflute and master
The type of attachment of cutting edge equal height type for equal height type and not.
In the micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy above-mentioned, along perpendicular to main flank direction
Observation, the main cutting edge is of a straight line type or arc line type.
Advantageous effect
Compared with prior art, the present invention makes cutter by the micro groove structure of the setting J-type at rake face cutting edge near field
When cutting GH4169 alloy, the temperature of knife-bits actual contact area (region is located at cutting edge near field) reduce to
Effectively improve cutting wear.It is well known that cutter is during the cutting process, severe friction and shape can occur for knife-bits contact zone
Become, generates localized hyperthermia's high pressure, generate a large amount of cutting heats；Shearing slip occurs for primary deformation zone during the cutting process simultaneously, cuts
The anti-shearing work of deformation almost all for cutting region is converted into cutting heat, by the transmission of heat, also results in Tool in Cutting temperature
Raising.In the present invention, applicant by being found to many experiments analysis of GH4169 alloy, when on rake face away from master
(distance is the outer rim close to main cutting edge side away from main cutting edge to the distance of 0.06~0.1mm of cutting edge (optimal is 0.1mm)
Distance, i.e. T) merging " J " type micro groove structure, microflute depth capacity H is between 0.27~0.34mmmm and the length L of microflute is
When 2.15~2.66mm, maximum width W are 0.89~1.21mm, the new construction of cutting edge near field has more apparent cooling-down effect；It is main
If because：1) presence of microflute increases chip and cutter rake face contact area, reduces cutter in knife-bits contact position area
Direct stress, which gradually decreases to a certain critical value, reduces the possibility to rub in occurring inside chip underlying metal,
So that in script knife-bits contact zone part friction area be converted into external friction region i.e. bond friction zone be converted into sliding friction
Area, since interior friction area is the main source region of cutter heat, the reduction in the region results in tool temperature reduction；2) micro-
The presence of slot changes the Thermal-mechanical Coupling effect of tool cutting process, changes primary deformation zone stress-strain state, improves
Primary deformation zone shearing slip reduces the generation of cutting heat.Comprehensive function so that Tool in Cutting temperature is effectively reduced, in turn
Effectively ensure the durability of lathe tool.
In the use of the present invention, microflute also has the function of chip breaking, microflute makes in cutting process chip along its surface flow,
Curved surface generates certain barrier effect to the flowing of chip so that chip crimps, when chip flows through outside microflute
When edge, by the high stress at this, when the strain that cutting occurs because being acted on by local stress reaches its limiting strain
When value, chip can fracture.Compared with common chip-breaker and antifriction slot, the difference of microflute of the present invention, in addition to above-mentioned
Except design principle, the location of microflute is mainly generally less than on knife-bits contact zone of rake face cutting edge near field, scale
Chip-breaker and antifriction slot, and the range of its present position is relatively distant from main cutting edge；In cutting process microflute cutter of the present invention with
Almost Full connected or the overwhelming majority contact (as shown in Fig. 6-Figure 11) of the contact shape of chip bottom, increases chip and knife before cutter
Face contact area, reduce cutter knife-bits contact position area direct stress；And the contact of common antifriction slot cutter and chip bottom
For incomplete contact between, because the design main purpose of common antifriction slot is to reduce the contact of cutter and chip bottom.
In order to more preferably prove that beneficial effects of the present invention, applicant have done following emulation experiment：It is closed using ordinary rigid
Golden turning insert (hereinafter referred to as compareing lathe tool) carries out cutting GH4169 alloy simulation comparison with the present invention.
In identical machining condition, (cutting data, cutter are several with each group of contrast experiment of the invention for above-mentioned control lathe tool
What structure, cutter and workpiece material etc.) under carry out, cut the simulation comparison experiment scheme and result such as table of GH4169 alloy
Shown in 1.
Table 1
As shown in Table 1, the highest of cutter can effectively be reduced using the present invention, cooling extent is up to 10~25%, cooling-down effect
Obviously.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram at the M of Fig. 1；
Structural schematic diagram when Fig. 3 is zero anterior angle on the Section A-A of Fig. 2；
Structural schematic diagram when Fig. 4 is negative rake on the Section A-A of Fig. 2；
Structural schematic diagram when Fig. 5 is positive rake angle on the Section A-A of Fig. 2；
Fig. 6 is Vc=35m/min, f=0.18mm, ap=2.5mm and γ0When being 0 °, knife-bits contact condition of microflute is imitative
True figure；
Fig. 7 is Vc=40m/min, f=0.18mm, ap=2.5mm and γ0When being 0 °, knife-bits contact condition of microflute is imitative
True figure；
Fig. 8 is Vc=35m/min, f=0.18mm, ap=2.5mm and γ0When being -15 °, knife-bits contact condition of microflute
Analogous diagram；
Fig. 9 is Vc=40m/min, f=0.18mm, ap=2.5mm and γ0When being -15 °, knife-bits contact condition of microflute
Analogous diagram；
Figure 10 is Vc=35m/min, f=0.18mm, ap=2.5mm and γ0When being 19 °, knife-bits contact condition of microflute
Analogous diagram；
Figure 11 is Vc=40m/min, f=0.18mm, ap=2.5mm and γ0When being 19 °, knife-bits contact condition of microflute
Analogous diagram.
Label in attached drawing be：1- rake faces, 2- main cutting edges, 3- outer rims, 4- cutting edge near field, 5- microflutes, 6- points of a knife,
The bottom surfaces 7-.
Specific implementation mode
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 1.It is a kind of cutting GH4169 alloy micro-structure carbide-tipped lathe tool piece, constitute as shown in Figure 1,
Including rake face 1, the edge of rake face 1 is equipped with main cutting edge 2, and microflute 5 is equipped at the cutting edge near field 4 of rake face 1；Described
Microflute 5 is in asymmetric, the whole not wide and deep J-type micro-structure (as shown in Figure 2) such as not.
Microflute 5 (as in Figure 3-5) above-mentioned is asymmetrical curve type, the bottom surface of microflute 5 in the section on rake face 1
7 be in plane, and the depth capacity H of microflute 5 is 0.27~0.34mm.
The length L of microflute 5 above-mentioned is 2.15~2.66mm；The maximum width W of microflute 5 it is (as shown in Figure 2) for 0.89~
1.21mm。
Minimum range T of the outer rim 3 of 2 side of close main cutting edge of microflute 5 above-mentioned away from main cutting edge 2 is (such as Fig. 2 institutes
Show) it is 0.06~0.09mm.
The outer rim 3 of microflute 5 above-mentioned and the type of attachment of main cutting edge 2 are equal height type (zero anterior angle) or equal height type be not (just,
Negative rake), (as in Figure 3-5).
It is observed along perpendicular to main flank direction, main cutting edge 2 above-mentioned is of a straight line type or arc line type.
Claims (3)
1. a kind of micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy, it is characterised in that：Including rake face（1）,
Rake face（1）Edge be equipped with main cutting edge（2）, rake face（1）Cutting edge near field（4）Place is equipped with microflute（5）；Described is micro-
Slot（5）In asymmetric, the whole not wide and deep J-type micro-structure such as not；The microflute（5）In rake face（1）On section
For asymmetrical curve type, microflute（5）Bottom surface（7）In plane or cambered surface, microflute（5）Depth capacity H be 0.27~0.34mm；
The microflute（5）Length L be 2.15~2.66mm, microflute（5）Width W be 0.89~1.21mm；The microflute（5）
Close main cutting edge（2）The outer rim of side（3）Away from main cutting edge（2）Minimum range T be 0.06~0.09mm.
2. the micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy according to claim 1, it is characterised in that：
The microflute（5）Outer rim（3）With main cutting edge（2）Type of attachment be equal height type and not equal height type.
3. the micro-structure carbide-tipped lathe tool piece of the cutting GH4169 alloy according to claims 1 or 2, feature
It is：It is observed along perpendicular to main flank direction, the main cutting edge（2）It is of a straight line type or arc line type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995294.5A CN106475584B (en) | 2016-11-11 | 2016-11-11 | A kind of micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610995294.5A CN106475584B (en) | 2016-11-11 | 2016-11-11 | A kind of micro-structure carbide-tipped lathe tool piece of cutting GH4169 alloy |
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| Publication Number | Publication Date |
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| CN106475584A CN106475584A (en) | 2017-03-08 |
| CN106475584B true CN106475584B (en) | 2018-10-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107138753B (en) * | 2017-07-04 | 2023-05-09 | 贵州大学 | Micro-groove hard alloy turning blade for cutting high-temperature alloy GH4169 |
| EP3542936A1 (en) | 2018-03-22 | 2019-09-25 | AB Sandvik Coromant | A cutting insert for a shoulder milling tool |
| CN112809033B (en) * | 2020-12-30 | 2024-01-30 | 贵州大学 | Microstructure hard alloy turning blade for cutting AISI201 |
| CN113399692A (en) * | 2021-06-16 | 2021-09-17 | 上海应用技术大学 | Composite micro-textured superhard cutter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016132054A (en) * | 2015-01-19 | 2016-07-25 | 株式会社豊田中央研究所 | Cutting tool and cutting method |
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| SE377771B (en) * | 1971-07-07 | 1975-07-28 | Sandvik Ab | |
| US3885281A (en) * | 1974-06-10 | 1975-05-27 | Iscar Ltd | Cutting insert with chip control |
| US3975809A (en) * | 1975-06-13 | 1976-08-24 | Kennametal Inc. | Cutting insert, especially for milling operations |
| CN85102569B (en) * | 1985-04-01 | 1987-10-07 | 大连工学院 | Self-breaking chip lathe tool for fine working stainless steel-like parts |
| DE19920192A1 (en) * | 1999-05-03 | 2000-11-16 | Kennametal Inc | Cutting insert, especially indexable insert |
| DE10344961A1 (en) * | 2003-09-27 | 2005-04-28 | Kennametal Inc | Cutting body, in particular for lancing and longitudinal turning |
| CN202317081U (en) * | 2011-11-23 | 2012-07-11 | 郑州市钻石精密制造有限公司 | Diamond-shaped polycrystalline diamond turning tool |
| CN205650833U (en) * | 2016-03-21 | 2016-10-19 | 基准精密工业（惠州）有限公司 | Blade and have cutter of this blade |
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| JP2016132054A (en) * | 2015-01-19 | 2016-07-25 | 株式会社豊田中央研究所 | Cutting tool and cutting method |
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Inventor after: Liu Yong Inventor after: He Lin Inventor after: Zou Zhongfei Inventor after: Jiang Hongwan Inventor after: Zhan Gang Inventor after: Wu Jinxing Inventor after: Yang Xinyu Inventor before: He Lin Inventor before: Zou Zhongfei Inventor before: Jiang Hongwan Inventor before: Zhan Gang Inventor before: Wu Jinxing Inventor before: Yang Xinyu |
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