CN207615673U - A kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo - Google Patents
A kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo Download PDFInfo
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- CN207615673U CN207615673U CN201720799766.XU CN201720799766U CN207615673U CN 207615673 U CN207615673 U CN 207615673U CN 201720799766 U CN201720799766 U CN 201720799766U CN 207615673 U CN207615673 U CN 207615673U
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Abstract
The utility model discloses a kind of coated carbides rake face comb teeth shape microflute lathe tools of cutting 40CrMnMo.Including rake face（1）, rake face（1）Edge be equipped with end cutting edge（2）And main cutting edge（3）, rake face（1）Cutting edge near field（4）Place is equipped with line-styled structure microflute（5）, line-styled structure microflute（5）With end cutting edge（2）Between be equipped with " stripe " micro slot array（7）, line-styled structure microflute（5）With main cutting edge（3）Between be equipped with " ripple type " micro slot array（6）.The utility model has the characteristics that reduce cutting temperature and improves tool life.
Description
Technical field
The utility model is related to a kind of lathe tool blade in machining field, especially a kind of cutting 40CrMnMo's
Coated carbides rake face comb teeth shape microflute lathe tool.
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
Neighbouring rake face region (cutting edge near field, close to the tiny area of cutting edge on cutter rake face, as ellipse is irised out in Fig. 3
Region) working environment it is the most severe, and its structure is directly related to cutting wear, so rational cutting edge is close
The micro- texture design in domain is particularly important to the cutting ability for promoting cutter.Dry cutting is as a kind of Eco-friendly machining side
Formula reduces a large amount of uses of cutting fluid, reduces enterprise's manufacturing cost and environmental pollution.But when machining, tool temperature
It can drastically increase, the temperature liter of rake face is particularly evident, this can not only reduce cutting wear, but also can reduce processing matter
Amount.The micro- texture in surface, which is applied in cutter structure design, has become a kind of trend.The micro- texture in surface can improve machining
The andfrictional conditions of middle knife bits contact area, can effectively reduce the frictional force of knife bits contact surface, to reduce the production of cutting heat
It is raw, achieve the effect that reduce cutting temperature.The micro- texture in surface is applied in cutter structure design mostly to reduce in industry at present
Cutting force, it is direct purpose to reduce the friction coefficient of knife bits contact area or reduce tool wear, to being to reduce cutting temperature
Direct purpose research is very few.
Utility model content
The utility model provides a kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo.This reality
Have the characteristics that reduce cutting temperature and raising tool life with novel.
The technical solution of the utility model：A kind of coated carbides rake face comb teeth shape microflute vehicle of cutting 40CrMnMo
The edge of knife, including rake face, rake face is equipped with end cutting edge and main cutting edge, and " one " is equipped at the cutting edge near field of rake face
Font structure microflute, is equipped with " stripe " micro slot array between line-styled structure microflute and end cutting edge, line-styled structure is micro-
" ripple type " micro slot array is equipped between slot and main cutting edge.
In the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo above-mentioned, " ripple type "
Distance of the micro slot array away from point of a knife is 0.5mm~0.55mm, total array length L of " ripple type " micro slot array1For 4.2~
4.5mm, array-width W are 0.15mm~0.16mm, and array pitch is the width k of single microflute2For 0.1039mm~
0.1732mm。
In the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo above-mentioned, " ripple type " is micro-
The shape of the single microflute of slot array is made of four sections of identical circular arcs, and arc radius R is 0.03~0.05mm, corresponding radian θ
It it is 50 °~70 °, along the direction of chip-flow angle, the size of chip-flow angle is 2.379~2.38 ° in the direction of single microflute.
In the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo above-mentioned, " stripe "
Array length L of the micro slot array along end cutting edge direction2For 0.8mm~0.85mm, stripe " micro slot array is in array-width side
To perpendicular to end cutting edge, stripe " micro slot array close to distance h of the end of end cutting edge away from end cutting edge be 0.06mm~
The maximum width K of 0.065mm, stripe " micro slot array is 0.36mm~0.37mm.
In the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo above-mentioned, " stripe "
The length L of the single microflute of micro slot array3For 0.085mm~0.36mm, wide k1It is in single for 0.03~0.05mm, depth d
In the vertical direction of microflute bottom surface, depth d is 0.03~0.04mm.
In the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo above-mentioned, along the knife after master
The direction in face is observed, and described " ripple type " micro slot array is in continuous ripple type.
Advantageous effect：Compared with prior art, the utility model passes through to the hard of cutting high strength steel alloy 40CrMnMo
The secondary structureization of matter alloy microflute lathe tool designs, i.e., in the hard alloy microflute rake face of turning cutter in line-styled structure
Suitable micro-structure is placed between microflute and major-minor cutting edge (to be placed between the microflute and main cutting edge in line-styled structure
" ripple type " is placed in " stripe " micro slot array between micro slot array, with end cutting edge), make cutter in cutting high strength steel alloy
When 40CrMnMo, the temperature of knife-bits actual contact area (region is located at cutting edge near field) reduces to effectively improve cutter
Durability.During the cutting process, knife-bits contact zone will produce localized hyperthermia's high pressure to cutter, and knife-bits contact interface is promoted to occur
Severe friction, and then generate a large amount of cutting heats；Simultaneously primary deformation zone because by apparent ess-strain effect, workpiece material
Anti-shearing work of deformation almost all is converted into cutting heat, by the transmission of heat, eventually leads to the raising of Tool in Cutting temperature.This
During the cutting process, the presence of line-styled structure microflute increases chip and cutter rake face contact surface to the lathe tool of utility model
Product (by Fig. 6-8 it is found that the utility model knife-bits are almost Full connected), reduces cutter just answering in knife-bits contact position area
Power；The presence of line-styled structure microflute changes the Thermal-mechanical Coupling effect of tool cutting process, changes primary deformation zone and answers
Stress-strain state reduces the generation of cutting heat；Applicant is analyzed by many experiments of cutting high strength steel alloy 40CrMnMo
It was found that at point of a knife 0.5mm~0.55mm, being in the microflute and main cutting edge of line-styled structure along main cutting edge direction
Between be placed in " ripple type " micro slot array, every section of 0.03~0.05mm of arc radius (optimal be 0.04mm) of single ripple, often
The corresponding radian of section circular arc is 50 °~70 ° (optimal is 60 °), is placed between the microflute and end cutting edge of line-styled structure
" stripe " micro slot array, the width of single striped are 0.03~0.04mm (optimal is 0.04mm), depth is 0.03~
When 0.04mm (optimal be 0.04mm), which adds meeting femtosecond laser
Under the premise of work process ruggedness requires, there is more apparent cooling-down effect, be primarily due to：1) presence of ripple type microflute further increases
Big chip and cutter rake face contact area effectively reduce knife to increase the heat transfer area between knife bits contact surface
Consider the cutting temperature of contact surface to be worth doing；Reduce simultaneously cutter knife-bits contact position area direct stress so that the contact of script knife-bits
Friction area is converted into the i.e. bonding friction zone in external friction region and is converted into sliding friction area in area part, since interior friction area is
The reduction of the main source of cutter heat, the region results in tool temperature reduction；In addition to this, the direction edge of ripple type microflute
The direction of chip-flow angle has certain elicitation effect to the outflow of chip, reduces the resistance during chip flow, make chip
It more smoothly flows out, to reduce the generation of cutting heat；2) before the presence of stripe microflute then reduces chip and cutter
The contact area of knife face reduces the frictional force of knife bits contact surface, to be further reduced the generation of cutting heat.Comprehensive function
So that Tool in Cutting temperature is effectively reduced, and then effectively ensure the durability of lathe tool.
In order to more preferably prove that the beneficial effects of the utility model, applicant have done following experiment：It is closed using ordinary rigid
Golden lathe tool (hereinafter referred to as former lathe tool), single microflute lathe tool (are placed in the vehicle of line-styled structure microflute on former rake face of turning cutter
Knife) it is real with the utility model lathe tool (hereinafter referred to as comb teeth shape microflute lathe tool) progress cutting high strength steel alloy 40CrMnMo comparisons
It tests.Above-mentioned former lathe tool, single microflute lathe tool are with each group of contrast experiment of comb teeth shape microflute lathe tool in identical machining condition
It is carried out under (cutting data, cutter geometry, cutter and workpiece material etc.), machining condition selects the optimal of single microflute lathe tool
Machining condition selects R pairs of ripple type microflute radius respectively since main cutting edge plays main shear action during the cutting process
Optimal value in three parameter values (0.03mm, 0.04mm and 0.05mm) answered is reference value, cutting high strength steel alloy
The contrast experiment's scheme and result of 40CrMnMo is respectively as shown in table 1,2 and 3.Experimental result explanation：The reality of single microflute lathe tool
It is 1000 (N/sec/mm/C) to test middle heat transfer coefficient, and heat transfer coefficient is 1500 (N/sec/mm/ in the experiment of the utility model
C), from the experimental results, the utility model has when heat transfer coefficient is 1500 (N/sec/mm/C) and obviously cools down
Effect, thus heat transfer coefficient be 1000 (N/sec/mm/C) when, effect can be more obvious, thus the utility model with it is single
Microflute lathe tool and former lathe tool are compared, and cooling-down effect becomes apparent from.
1 experimental result of table
2 experimental result of table
3 experimental result of table
Note："-" expression has no cooling-down effect in table
To sum up learn the lathe tool cooling-down effect of the utility model clearly.
Description of the drawings
Fig. 1 is the vertical view of the utility model；
Fig. 2 is the structural schematic diagram at the M of Fig. 1；
Fig. 3 is the front view of the utility model；
Fig. 4 is the structural schematic diagram at the N of Fig. 3；
Fig. 5 is the structural schematic diagram on the Section A-A of Fig. 2；
Fig. 6 is Vc=115m/min, f=0.42mm, ap=2mm and γ0When being -10 °, ripple type microflute R is 0.03mm,
θ is 60 °, and stripe microflute width is 0.03mm, when depth is 0.04, knife-bits contact condition figure of microflute；
Fig. 7 is Vc=115m/min, f=0.42mm, ap=2mm and γ0When being -10 °, ripple type microflute R is 0.04mm,
θ is 60 °, and stripe microflute width is 0.04mm, when depth is 0.04, knife-bits contact condition figure of microflute；
Fig. 8 is Vc=115m/min, f=0.42mm, ap=2mm and γ0When being -10 °, ripple type microflute R is 0.05mm,
θ is 60 °, and stripe microflute width is 0.03mm, when depth is 0.04, knife-bits contact condition figure of microflute；
Label in attached drawing be：1- rake faces, 2- end cutting edges, 3- main cutting edges, 4- cutting edge near field, 5- " one " word
Type structure microflute, 6- " ripple type " micro slot array, 7- " stripe " micro slot array.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model
The foundation of limitation.
Embodiment 1.A kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo, is constituted as schemed
Shown in 1-5, including rake face 1, the edge of rake face 1 are equipped with end cutting edge 2 and main cutting edge 3, the cutting edge near field of rake face 1
It is equipped with line-styled structure microflute 5 (referring to Fig. 1) at 4, " stripe " is equipped between line-styled structure microflute 5 and end cutting edge 2
Micro slot array 7 (referring to Fig. 1 or 2) is equipped with (ginseng of " ripple type " micro slot array 6 between line-styled structure microflute 5 and main cutting edge 3
See Fig. 1 or 2).
" ripple type " micro slot array 6 above-mentioned is 0.5mm~0.55mm (first " ripples of i.e. close point of a knife apart from point of a knife
The distance between type " microflute and point of a knife), total array length L of " ripple type " micro slot array 61For 4.2~4.5mm, array-width
W is 0.15mm~0.16mm, and array pitch is the width k of single microflute2For 0.1039mm~0.1732mm.
Referring to Fig. 4, the shape of the single microflute of " ripple type " micro slot array 6 above-mentioned is made of four sections of identical circular arcs, circle
Arc radius R is 0.03~0.05mm, and corresponding radian θ is 50 °~70 °, and preferred value is 60 °, and the direction of single microflute is considered to be worth doing along stream
The size in the direction at angle, chip-flow angle is 2.379 °~2.38 °.
Array length L of " stripe " micro slot array 7 above-mentioned along 2 direction of end cutting edge2For 0.8~0.85mm, striped
Type " micro slot array 7 is in array-width direction perpendicular to end cutting edge 2, stripe " micro slot array 7 is close to the end of end cutting edge 2
Distance h of the portion away from end cutting edge 2 be 0.06~0.065mm, stripe " micro slot array 7 maximum width K be 0.36mm~
0.37mm, wide ratio of array are 1.
The length L of the single microflute of " stripe " micro slot array 7 above-mentioned3For 0.085mm~0.36mm, wide k1It is 0.03
~0.05mm, preferred value 0.04mm, depth d are in the vertical direction of single microflute bottom surface, depth d be 0.03~
0.04mm, preferred value are 0.04mm (as shown in Figure 5).
It is observed along perpendicular to the direction of main flank, described " ripple type " micro slot array 6 is in continuous ripple type.Referring to
Fig. 4.
It is observed along perpendicular to the direction of minor flank, the single microflute of described " stripe " micro slot array 7 is in stripe.
The coated carbides rake face comb teeth shape microflute lathe tool anterior angle of cutting 40CrMnMo above-mentioned is -10 °.Such as Fig. 5
It is shown.
During the cutting process, the presence of line-styled structure microflute increases chip and cutter rake face contact area to lathe tool
(by Fig. 6-8 it is found that knife-bits are almost Full connected), reduce cutter knife-bits contact position area direct stress；Line-styled knot
The presence of structure microflute changes the Thermal-mechanical Coupling effect of tool cutting process, changes primary deformation zone stress-strain state, drops
The generation of low cutting heat.
Claims (6)
1. a kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo, it is characterised in that：Including preceding knife
Face（1）, rake face（1）Edge be equipped with end cutting edge（2）And main cutting edge（3）, rake face（1）Cutting edge near field（4）Place
Equipped with line-styled structure microflute（5）, line-styled structure microflute（5）With end cutting edge（2）Between be equipped with " stripe " microflute battle array
Row（7）, line-styled structure microflute（5）With main cutting edge（3）Between be equipped with " ripple type " micro slot array（6）.
2. the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo according to claim 1, special
Sign is：Described " ripple type " micro slot array（6）Distance away from point of a knife is 0.5mm ~ 0.55mm, " ripple type " micro slot array
（6）Total array length L1 be 4.2~4.5mm, array-width W be 0.15mm ~ 0.16mm, array pitch be single microflute width
Degree k2 is 0.1039mm ~ 0.1732mm.
3. the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo according to claim 1 or 2,
It is characterized in that：" ripple type " micro slot array（6）The shape of single microflute be made of four sections of identical circular arcs, arc radius R
For 0.03 ~ 0.05mm, corresponding radian θ is 50 ° ~ 70 °, and the direction of single microflute is along the direction of chip-flow angle, the size of chip-flow angle
It is 2.379 ~ 2.38 °.
4. the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo according to claim 1 or 2,
It is characterized in that：Described " stripe " micro slot array（7）Along end cutting edge（2）The array length L2 in direction be 0.8mm ~
0.85mm, stripe " micro slot array（7）In array-width direction perpendicular to end cutting edge（2）, stripe " and micro slot array（7）It leans on
Nearly end cutting edge（2）End away from end cutting edge（2）Distance h be 0.06mm ~ 0.065mm, stripe " micro slot array（7）'s
Maximum width K is 0.36mm ~ 0.37mm.
5. the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo according to claim 1 or 2,
It is characterized in that：Described " stripe " micro slot array（7）Single microflute length L3It is for 0.085mm ~ 0.36mm, wide k1
0.03 ~ 0.05mm, depth d are in the vertical direction of single microflute bottom surface, and depth d is 0.03 ~ 0.04mm.
6. the coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo according to claim 1 or 2,
It is characterized in that：It is observed along perpendicular to the direction of main flank, described " ripple type " micro slot array（6）In continuous ripple type.
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| CN201720799766.XU CN207615673U (en) | 2017-07-04 | 2017-07-04 | A kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138752A (en) * | 2017-07-04 | 2017-09-08 | 贵州大学 | A kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138752A (en) * | 2017-07-04 | 2017-09-08 | 贵州大学 | A kind of coated carbides rake face comb teeth shape microflute lathe tool of cutting 40CrMnMo |
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