CN106493396B - A kind of micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting - Google Patents
A kind of micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting Download PDFInfo
- Publication number
- CN106493396B CN106493396B CN201611002019.5A CN201611002019A CN106493396B CN 106493396 B CN106493396 B CN 106493396B CN 201611002019 A CN201611002019 A CN 201611002019A CN 106493396 B CN106493396 B CN 106493396B
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- Prior art keywords
- microflute
- cutting edge
- cutting
- micro
- lathe tool
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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
- B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
- B23B27/145—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having a special shape
Abstract
The invention discloses a kind of micro-structure carbide-tipped lathe tool pieces of 304 stainless steels of cutting.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 baseball rod type.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 tools in machining field, especially a kind of micro- knot of 304 stainless steels of cutting
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 efficiency and the processing of cutting wear and processing
Quality, 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 mainly concentrates the design of antifriction slot and the design of chip-breaker, and how the former reduces knife if being primarily upon
The friction of tool and chip bottom metal, having reached reduces the purpose that cutting temperature improves durability, and the latter is concerned with how rationally to set
Meter enables chip to fracture or be bent as requested, avoids influencing processing and machined surface quality.When machining, the temperature of cutter
Degree can be increased drastically, this can not only reduce cutting wear, but also can reduce machining quality.Industry is mainly adopted at present
Cooling means are to be cooled down using coolant liquid in processing, which can only reduce the temperature on lathe tool surface.By upper
It states it is found that the structure design that how industry reduces 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 hard conjunctions of 304 stainless steels of cutting
Golden 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 304 stainless steels of cutting, including rake face,
The edge of rake face is equipped with main cutting edge, and microflute is equipped at the cutting edge near field of rake face；The microflute is in baseball rod type.
In the micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting above-mentioned, the microflute is perpendicular to main cutting
Section in the plane of sword is asymmetrical curve type, and the bottom surface of microflute is in plane or cambered surface, the depth capacity H of microflute is 0.1~
0.3mm。
In the micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting above-mentioned, the length L of the microflute is 1~
The maximum width W of 3.5mm, microflute are 0.5~1.5mm.
In the micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting above-mentioned, the close main cutting edge of the microflute
Distance T of the outer rim of side away from main cutting edge is 0.08~0.5mm.
In the micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting above-mentioned, the outer rim of the microflute and main cutting
The type of attachment of sword equal height type for equal height type or not.
In the micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting above-mentioned, observed along perpendicular to main flank direction,
The main cutting edge is in arc line type or linear type.
Advantageous effect
Compared with prior art, the present invention by rake face cutting edge near field be arranged baseball rod type micro groove structure,
Make cutter when cutting 304 stainless steel, 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 304 stainless steels, when on rake face away from main cutting
(distance is the outer rim close to main cutting edge side away from main cutting edge to the distance of 0.08~0.5mm of sword (optimal is 0.15mm)
Distance, i.e. T) merging " baseball rod " type micro groove structure, the depth capacity H of microflute is between 0.1~0.3mm and the length L of microflute is 1
When~3.5mm, maximum width W are 0.5~1.5mm, the new construction of cutting edge near field has more apparent cooling-down effect；Mainly because
For：1) presence of microflute increases chip and cutter rake face contact area, reduces cutter just answering in knife-bits contact position area
Power, the direct stress gradually decrease to a certain critical value, reduce the possibility to rub in occurring inside chip underlying metal so that former
Friction area is converted into the i.e. bonding friction zone in external friction region and is converted into sliding friction area in this knife-bits contact zone part, due to
Interior friction area is the main source region of cutter heat, and the reduction in the region results in tool temperature reduction；2) microflute is deposited
In the Thermal-mechanical Coupling effect for changing tool cutting process, primary deformation zone stress-strain state is changed, the first change is improved
Shape area shearing slip, reduces the generation of cutting heat.Comprehensive function so that Tool in Cutting temperature is effectively reduced, and then effectively really
The durability of lathe tool is protected.
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 reduces cutter in the direct stress in knife-bits contact position area, 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 304 stainless steel simulation comparisons of cutting 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 simulation comparison experiment scheme and result such as 1 institute of table of 304 stainless steels
Show.
Table 1
As shown in Table 1, the highest of cutter can effectively be reduced using the present invention, cooling extent is up to 10~20%, 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=200m/min, f=0.25mm, ap=2.5mm and γ0When being 0 °, knife-bits contact condition of microflute is imitative
True figure；
Fig. 7 is Vc=100m/min, f=0.2mm, ap=1.5mm and γ0When being 0 °, knife-bits contact condition of microflute is imitative
True figure；
Fig. 8 is Vc=200m/min, f=0.25mm, ap=2.5mm and γ0When being -15 °, knife-bits contact condition of microflute
Schematic diagram；
Fig. 9 is Vc=100m/min, f=0.2mm, ap=1.5mm and γ0When being -15 °, knife-bits contact condition of microflute
Analogous diagram；
Figure 10 is Vc=200m/min, f=0.25mm, ap=2.5mm and γ0When being 15 °, knife-bits contact condition of microflute
Analogous diagram；
Figure 11 is Vc=100m/min, f=0.2mm, ap=1.5mm and γ0When being 15 °, 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.A kind of micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting constitutes as illustrated in fig. 1 and 2, packet
Rake face 1 is included, the edge of rake face 1 is equipped with main cutting edge 2, microflute 5 is equipped at the cutting edge near field 4 of rake face 1；Described is micro-
Slot 5 is in asymmetric, the whole not wide and deep baseball rod type micro-structure (as shown in Figure 2) such as not.
The section of microflute 5 (as shown in Figure 3) above-mentioned is asymmetrical curve type, and the bottom surface 7 of microflute 5 is in plane or cambered surface,
The depth capacity H of microflute 5 is 0.1~0.3mm.
The length L of microflute 5 above-mentioned is 1~3.5mm；The maximum width W of microflute 5 (as shown in Figure 2) is 0.5~2.5mm.
Distance T (as shown in Figure 2) of the outer rim 3 of 2 side of close main cutting edge of microflute 5 above-mentioned away from main cutting edge 2 be
0.08~0.5mm, optimal is 0.1mm.
The outer rim 3 of microflute 5 above-mentioned and the type of attachment of main cutting edge 2 are for equal height type (zero anterior angle, as shown in Figure 3) or not
Equal height type (positive and negative anterior angle) (as shown in Figures 4 and 5).
It is observed along perpendicular to main flank direction, main cutting edge 2 above-mentioned is in arc line type or linear type.
Claims (3)
1. a kind of micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting, 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）；The microflute（5）
In baseball rod type；The microflute（5）Perpendicular to main cutting edge（2）Plane on section be asymmetrical curve type, microflute
（5）Bottom surface（7）In plane or cambered surface, microflute（5）Depth capacity H be 0.1~0.3mm；The microflute（5）Length L
For 1~3.5mm, microflute（5）Maximum width W be 0.5~1.5mm；The microflute（5）Close main cutting edge（2）Side
Outer rim（3）Away from main cutting edge（2）Distance T be 0.08~0.5mm.
2. the micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting according to claim 1, it is characterised in that：It is described
Microflute（5）Outer rim（3）With main cutting edge（2）Type of attachment be equal height type or not equal height type.
3. the micro-structure carbide-tipped lathe tool piece of 304 stainless steel of cutting according to claims 1 or 2, it is characterised in that：
It is observed along perpendicular to main flank direction, the main cutting edge（2）In arc line type or linear type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002019.5A CN106493396B (en) | 2016-11-11 | 2016-11-11 | A kind of micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611002019.5A CN106493396B (en) | 2016-11-11 | 2016-11-11 | A kind of micro-structure carbide-tipped lathe tool piece of 304 stainless steels of cutting |
Publications (2)
| Publication Number | Publication Date |
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| CN106493396A CN106493396A (en) | 2017-03-15 |
| CN106493396B true CN106493396B (en) | 2018-10-09 |
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Families Citing this family (2)
| 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 |
| CN109857061B (en) * | 2019-01-24 | 2022-05-17 | 贵州大学 | Workpiece surface residual stress regulation and control method based on thermal coupling model |
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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| US4880338A (en) * | 1988-12-07 | 1989-11-14 | Gte Valenite Corporation | Cutting insert |
| CN204934652U (en) * | 2015-09-22 | 2016-01-06 | 乐清市南方硬质合金有限公司 | A kind of indexable insert tip, throw away tip |
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2016
- 2016-11-11 CN CN201611002019.5A patent/CN106493396B/en active Active
Patent 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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Inventor after: Liu Yong Inventor after: He Lin Inventor after: Zhan Gang Inventor after: Jiang Hongwan Inventor after: Zou Zhongfei Inventor after: Wu Jinxing Inventor after: Yang Xinyu Inventor before: He Lin Inventor before: Zhan Gang Inventor before: Jiang Hongwan Inventor before: Zou Zhongfei Inventor before: Wu Jinxing Inventor before: Yang Xinyu |
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