CN104942349B - The method for optimizing of hardened steel milling cutter, car door method for milling and convex surface test specimen - Google Patents
The method for optimizing of hardened steel milling cutter, car door method for milling and convex surface test specimen Download PDFInfo
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- CN104942349B CN104942349B CN201510372337.XA CN201510372337A CN104942349B CN 104942349 B CN104942349 B CN 104942349B CN 201510372337 A CN201510372337 A CN 201510372337A CN 104942349 B CN104942349 B CN 104942349B
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- 238000003801 milling Methods 0.000 title claims abstract description 128
- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 51
- 229910000760 Hardened steel Inorganic materials 0.000 title claims abstract description 41
- 238000005520 cutting process Methods 0.000 claims abstract description 73
- 238000003754 machining Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 238000013461 design Methods 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000010791 quenching Methods 0.000 claims description 10
- 230000000171 quenching effect Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- 238000011156 evaluation Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000012876 topography Methods 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 12
- 238000005242 forging Methods 0.000 description 8
- 241000220317 Rosa Species 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 206010068052 Mosaicism Diseases 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/16—Working surfaces curved in two directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/12—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2215/00—Details of workpieces
- B23C2215/08—Automotive parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The method for optimizing of hardened steel milling cutter, car door method for milling and convex surface test specimen.The present invention provides a kind of method for optimizing of high-speed milling many hardness transitional hardened steel milling cutter, is detected the method for carrying out overall merit again by using test specimen, solves milling cutter and cutting parameter and cutting path mismatch problem in the processing of high-speed milling hardened steel punch.The present invention also provides a kind of car door method for milling, by rotating speed and the difference of feed speed, solves the problems, such as that existing method for milling has that machined surface quality is low, consumes that milling cutter quantity is many, working (machining) efficiency is low.The present invention also provides a kind of many hardness transitional hardened steel convex surface test specimen, and the test specimen has multi-curvature change, many hardness part combination feature, solves the problems, such as that existing method for milling cannot test high-speed milling cutter vibration and machined surface roughness.
Description
Technical field
The present invention relates to cutting technology field, and in particular to a kind of method for optimizing of hardened steel milling cutter, car door method for milling
And the test specimen for using.
Background technology
High speed rose cutter is a kind of HSC Milling Tools of typical processed complex curved surface, quenches in automobile large-scale covering
It is widely used in hard steel die face High speed finish machining.As die quenching surface and insert hardness are in HRC30～HRC65 scope
Interior change, and type cast then machined part is changeable, cutting force when high speed rose cutter is finished, cuts thermally-induced cutter distortion, shakes
Dynamic, abrasion, damaged, overheated and burn, easily cause unpredictable die size error and profiled surface to damage, directly affect
Die life.Meanwhile, in order to ensure integrality and the coverage forming quality of die face, one in-process, difference are hard
The machining area of degree need by same a machine tool and same cutter is completed, cutter life should reach 4h-12h, at a high speed
The complex-curved dynamic military service performance of rose cutter cutting of hardened steel is put forward higher requirement.
The military services such as high speed rose cutter security, cutting stability, service life, working (machining) efficiency and machined surface quality
The reciprocation of various degrees between energy.Improve cutting speed and cutting force is advantageously reduced, improve machining accuracy and add
Work surface quality, but after cutting speed exceedes a certain scope, under larger centrifugal action, milling cutter security and service life
To significantly reduce.Meanwhile, higher excited frequency may be interacted with milling cutter mode, reduce milling cutter High-Speed Machining Stability.
The high speed rose cutter that is selected using existing milling cutter method of testing cannot meet the need of the large-scale steel mold processing of hardening of automobile
Ask.
Automobile large-scale covering mold high speed Milling Process on the one hand require great metal removal rate come reduce account for machine when
Between, on the other hand require low cutting vibration, high cutter life and high machined surface quality.At present, high-speed milling cutter performance is surveyed
Examination and milling cutter method for optimizing research, mainly using control variate method for certain specific high-speed cutting characteristic quantity carry out study with
Modeling, to high-speed cutting processing process influence, high-speed milling cutter is selected and cutting ginseng not to account for reciprocation between multi-characteristicquantity quantity
Number scheme and cutting path design are mismatched, and cause iterations present on technological design excessive with design loop, it is difficult to obtain
Obtain optimal solution.
Content of the invention
First purpose of the present invention is to provide a kind of method for optimizing of high-speed milling many hardness transitional hardened steel milling cutter, solution
Milling cutter and cutting parameter and cutting path mismatch problem during certainly high-speed milling hardened steel punch is processed.
The purpose is achieved by the following scheme：
A kind of method for optimizing of high-speed milling many hardness transitional hardened steel milling cutter, it is characterised in that comprise the following steps successively：
A. determine that many hardness transitional harden steel mold；
B. hardness and the curvature Variation of mould is extracted, test specimen is designed and produced, the test specimen covers all hard of mould
Degree and Curvature varying；
C. according to specimen Design milling cutter cutting path；
D. test specimen cutting test；
E. cutting parameter is exported, including milling cutter security, cutting force load, milling cutter vibration, working (machining) efficiency, finished surface shape
Looks uniformity, milling cutter service life；
F. N number of milling cutter selection scheme is formed；
G. all schemes synthesis evaluations；
H. preferred plan is obtained.
Preferred version is, test specimen described in step b, quenches parts by 5 Cr12MoV and 1 45# steel part is spliced,
Its upper surface by along piece lengths directional curvature radius in 1100mm, 1500mm distribution and along specimen width directional curvature radius is in
The convex surface of 800mm distribution, and the polygonal annular boss composition of high 35mm disposed thereon；Test specimen upper surface is distributed with 4 kinds firmly
Degree, respectively HRC30～35, HRC40～45, HRC50～55, HRC60～65；Test specimen middle part hardness is HRC60～65.
Preferred version is that milling cutter cutting path described in step c is three kinds, designs with 14 kinds in the test specimen upper surface
Finished surface curvature and the cutting zone of firmness change feature；Wherein, the parallel mill along piece lengths 400mm direction cuts road
Footpath, marks off the cutting zone of 5 kinds of different finished surface curvature and firmness change；Parallel milling along specimen width 300mm direction
Knife cutting path, marks off the cutting zone of 7 kinds of different finished surface curvature and firmness change；Inside and outside polygonal annular boss
The milling cutter cutting path of side, marks off the cutting zone of 2 kinds of different finished surface curvature and firmness change.
Many hardness transitional hardened steel convex surface test specimen and high-speed milling cutter method for optimizing that the present invention is provided, according to hardened steel plus
Work surface curvature and hardness frequently change to milling cutter cutting force load, milling cutter vibration and the impact of milled surface topography, by height
Fast milling cutter performance synthesis is evaluated, eliminate select characteristic parameter during knife to iterate caused selection loop is excessive etc. asks
Topic, it is achieved that milling cutter is preferably optimized with cutting parameter and cutting path collaboration, efficiently solves high-speed milling cutter stock-removing efficiency and milling
Chatter dynamic collision problem and machined surface quality between.
Second object of the present invention is to provide the high-speed milling method that a kind of many hardness transitional of car door harden steel mold, solution
Certainly existing method for milling has that machined surface quality is low, many, working (machining) efficiency is low to consume milling cutter quantity.
The purpose is achieved by the following scheme：
A kind of many hardness transitional of car door harden the high-speed milling method of steel mold, such as following table：
The high-speed milling method of steel mold it is demonstrated experimentally that many hardness transitional of car door of the present invention harden, which is in processing table
Original technique is superior in face quality, the milling cutter quantity of consumption and working (machining) efficiency.
Third object of the present invention is to provide a kind of many hardness transitional hardened steel convex surface test specimen, solves existing milling side
Method cannot test the problem of high-speed milling cutter vibration and machined surface roughness.
The purpose is achieved by the following scheme：
A kind of many hardness transitional hardened steel convex surface test specimen, test specimen is the rectangular structure being made up of 6 parts, profile chi
Very little 400mm × 300mm × 147mm；
(1) 6 parts of composition test specimen are respectively part 1, part 2, part 3, part 4, part 5, part 6；
(2) part 1, part 2, part 3, part 4,5 lower surface of part are by the upper of alignment pin and trip bolt and part 6
Surface is connected, and the middle part positioned at piece lengths 400mm direction, so that part 6 is reserved along length 400mm direction both sides
Each 50mm space, is connected with platen for test specimen, fixes；
(3) along specimen width 300mm direction, part 1, part 2, the two ends of part 3 are connected with part 4,5 side of part respectively；
(4) along piece lengths 400mm direction, the both sides of part 2 are connected with the side of part 1, part 3 respectively, and with zero
Part 4, the alignment of 5 two ends of part；
(5) part 1, part 2, part 3, part 4,5 upper surface of part collectively form test specimen 300mm × 300mm × 38mm
High-rate wireless LAN region；
(6) the high-rate wireless LAN region of test specimen 300mm × 300mm × 38mm is made up of bottom convex surface and a boss；
(7) bottom in test specimen high-rate wireless LAN region is convex surface, and which begins along specimen width 300mm directional curvature radius
It is 800mm eventually, its radius of curvature along piece lengths 400mm direction is distributed in 1500mm, 1100mm.
The polygon boss of the high 35mm in test specimen high-rate wireless LAN region, overall size are 250mm × 165mm × 35mm,
On the convex surface of bottom, across part 1, part 2, part 3, its outward flange by straight line and radius be 20mm, 30mm, 50mm and
The circular sliding slopes of 75mm are formed, and inward flange is formed for the circular sliding slopes of 20mm and 30mm by straight line and radius, and outer edge is most long
Apart from 40mm, surrounding side elevation is in 3 ° of gradients；Boss top surface is plane, with side radius 3mm；Inner surface surrounds area
Domain bottom surface is made up of two planes, and with length direction center line as boundary, the plane on part 1, part 2 is relatively low, positioned at zero
Plane on part 2, part 3 is higher, and two levels difference is 10mm, with side radius 3mm.
Preferred version is that the material of part 1 adopts Cr12MoV forging, and after quenching, hardness is HRC40～45；The material of part 2
Using Cr12MoV forging, after quenching, hardness is HRC60～65 to material；The material of part 3 adopts Cr12MoV forging, hardness after quenching
For HRC50～55；The material of part 4 and part 5 adopts Cr12MoV forging, and after quenching, hardness is HRC30～35；The material of part 6
Material is using 45# steel, modifier treatment.
Preferred version is that the test specimen finished surface curvature is distributed as shown in the table with stiffness characteristics：
Many hardness transitional hardened steel convex surface test specimen with polygonal annular boss of the present invention, processes with 14 kinds
Surface curvature and firmness change feature, are applied to test high-speed milling cutter security reliability, high-speed milling cutter vibration and processing table
The experiment of surface roughness, and then preferably go out high-speed milling many hardness transitional hardened steel milling cutter, milling cutter can be solved in cutting midway
The problem for occurring breakage to cause to destroy die face.
Description of the drawings
Fig. 1 is the structural representation of test specimen described in embodiment 1.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the B-B profile of Fig. 1.
Fig. 4 is the photo schematic diagram of test specimen described in embodiment 1.
Fig. 5 is many hardness transitional hardened steel evagination with polygonal annular boss that scheme described in embodiment 1 is processed
Interview part photo top view.
Fig. 6 is milling cutter cutting path schematic diagram described in embodiment 3.
Fig. 7 is milling cutter cutting experiment sampled point schematic diagram described in embodiment 3.
Fig. 8 is scheme machined surface roughness experimental result contrast photo described in embodiment 4.
Fig. 9 is the method for optimizing flow chart of high-speed milling many hardness transitional hardened steel milling cutter described in embodiment 5.
Specific embodiment
Embodiment 1
The present embodiment is many hardness transitional hardened steel convex surface specimen Design.
Many hardness transitional hardened steel convex surface test specimen structure of design is as shown in accompanying drawing 1, Fig. 2, Fig. 3 and Fig. 4.
The test specimen following structural features：
(1) test specimen is the rectangular structure being made up of 6 parts, overall size 400mm × 300mm × 147mm.
(2) 6 parts of composition test specimen are respectively part 1, part 2, part 3, part 4, part 5, part 6；
(3) part 1, part 2, part 3, part 4,5 lower surface of part are by the upper of alignment pin and trip bolt and part 6
Surface is connected, and the middle part positioned at piece lengths 400mm direction, so that part 6 is reserved along length 400mm direction both sides
Each 50mm space, is connected with platen for test specimen, fixes；
(4) along specimen width 300mm direction, part 1, part 2, the two ends of part 3 are connected with part 4,5 side of part respectively
Connect；
(5) along piece lengths 400mm direction, the both sides of part 2 are connected with the side of part 1, part 3 respectively, and with zero
Part 4, the alignment of 5 two ends of part；
(6) part 1, part 2, part 3, part 4,5 upper surface of part collectively form test specimen 300mm × 300mm × 38mm
High-rate wireless LAN region；
(7) the high-rate wireless LAN region of test specimen 300mm × 300mm × 38mm is by bottom convex surface and a boss structure
Become；
(8) bottom in test specimen high-rate wireless LAN region is convex surface, and which begins along specimen width 300mm directional curvature radius
It is 800mm eventually, its radius of curvature along piece lengths 400mm direction is distributed in 1500mm, 1100mm；
(9) the polygon boss of the high 35mm in test specimen high-rate wireless LAN region, overall size be 250mm × 165mm ×
35mm, on the convex surface of bottom, across part 1, part 2, part 3, its outward flange by straight line and radius be 20mm, 30mm,
The circular sliding slopes of 50mm and 75mm are formed, and inward flange is formed for the circular sliding slopes of 20mm and 30mm by straight line and radius, interior outside
Edge longest distance 40mm, surrounding side elevation are in 3 ° of gradients；Boss top surface is plane, with side radius 3mm；Inner surface
Surround region bottom surface to be made up of two planes, with length direction center line as boundary, the plane on part 1, part 2 is relatively low,
Plane on part 2, part 3 is higher, and two levels difference is 10mm, with side radius 3mm.
The material of the test specimen component part and stiffness characteristics are：
(1) material of part 1 adopts Cr12MoV forging, and after quenching, hardness is HRC40～45；
(2) material of part 2 adopts Cr12MoV forging, and after quenching, hardness is HRC60～65；
(3) material of part 3 adopts Cr12MoV forging, and after quenching, hardness is HRC50～55；
(4) material of part 4 and part 5 adopts Cr12MoV forging, and after quenching, hardness is HRC30～35；
(5) material of part 6 adopts 45# steel, modifier treatment.
The many hardness transitional hardened steel convex surface test specimen with polygonal annular boss for processing is as shown in Figure 5.
Embodiment 2
The present embodiment is related to the division of the design of hardened steel punch test specimen milling cutter cutting path and cutting zone.
Parallel mill cutting path method is designed using along piece lengths direction and specimen width direction, and along polygonal ring
The method of outside design milling cutter cutting path in shape boss, marks off with 14 kinds of finished surface curvature and firmness change feature
Cutting zone；As shown in table 1；
1 hardened steel punch test specimen finished surface curvature of table is distributed with stiffness characteristics
Embodiment 3
The present embodiment is the design of high-speed milling hardened steel punch milling cutter performance test experimental program.
(1) experiment using two identicals be provided with the diameter 20mm of coated cemented carbide insert, Mold processing 75mm two
The indexable high speed rose cutter of tooth, in five-axle number control machine tool UCP710, using the parallel mill along piece lengths 400mm direction
Cutting path and the suitable alternate milling mode of upmilling, with two kinds of cutting schemes shown in table 2, carry out cutting of hardened steel punch milling cutter
Vibration and machined surface roughness test experiments；
2 cutting parameter scheme of table
(2) vibration of the parallel mill cutting path along piece lengths 400mm direction that experiment is adopted, and milling cutter and processing table
Surface roughness sampled point is as shown in Figure 6, Figure 7；
(3) radius of curvature of each sampled point of finished surface in milling cutter feeding and milling width, hardness is extracted, is gone forward side by side
Row milling cutter axis is calculated with the machining inclination angle folded by finished surface normal direction and Unit cutting force, as a result as shown in table 3；
3 sampled point machining feature of table and Unit cutting force
Embodiment 4
The present embodiment is the vibration of high-speed milling hardened steel punch milling cutter and machined surface roughness experiment.
(1) milling cutter vibration and the machined surface roughness experimental result, such as table 4 and Fig. 8 for being obtained using above-mentioned experimental program
Shown.
4 milling cutter vibration experiment test result of table
(2) by table 3, table 4 and Fig. 8, frequently being changed by finished surface curvature and hardness is affected, and is cut using above two
Any kind of a kind of cutting scheme in scheme, cuts many hardness transitional hardened steel convex surface test specimen, and milling cutter machining inclination angle, unit are cut
Cut power and during milling cutter vibration amplitude is in being continually changing；Although machined surface roughness value changes infrequently, but identical cut
The milled surface topography that cuts at scheme different measuring points is significantly different.
(3) while finding, compared with speed of mainshaft 2200rpm, the cutting scheme of feed speed 1400mm/min, using master
Rotating speed 4000rpm, the cutting scheme of feed speed 2000mm/min, its Unit cutting force are decreased obviously, although milling cutter vibration
Amplitude declines less, but stock-removing efficiency improves 42%, and machined surface roughness value reduces by one times.
(4) result shows, using the test specimen and the method for test high-speed milling cutter, can detect that many hardness transitional harden
Steel convex curved surface and the variation characteristic of hardness frequently changing condition lower milling cutter machining inclination angle, Unit cutting force and milling cutter vibration,
The quality of two kinds of process programs can be substantially distinguished using experimental results, and it is right to can detect that stock-removing efficiency is increased substantially
The impact of high-speed milling cutter cutting ability.
Embodiment 5
The present embodiment is high-speed milling hardened steel milling cutter method for optimizing.
(1) it is that solution has been selected the ambiguity that the milling cutter cutting of hardened steel military service performance that knife method is selected is present and do not known
Sex chromosome mosaicism, cuts the experimental result of many hardness transitional hardened steel convex surface test specimen, cuts from high-speed milling cutter is met according to high-speed milling cutter
Cut hardened steel security and stability requirement to set out, the longevity is used using high-speed milling cutter Machining Hardened Steels cutting force, milling cutter vibration, milling cutter
The military service performance synthesis evaluation indexes such as life, machined surface quality and working (machining) efficiency, are cut with cutting parameter and cutter with realizing milling cutter
Path best match is cut for target, carry out high-speed milling cutter preferred process as shown in Figure 9；Detailed process is as follows：
The method for optimizing of high-speed milling many hardness transitional hardened steel milling cutter is comprised the following steps successively：
A. determine that many hardness transitional harden steel mold；
B. hardness and the curvature Variation of mould is extracted, test specimen is designed and produced, the test specimen covers all hard of mould
Degree and Curvature varying；
C. according to specimen Design milling cutter cutting path；
D. test specimen cutting test；
E. cutting parameter is exported, including milling cutter security, cutting force load, milling cutter vibration, working (machining) efficiency, finished surface shape
Looks uniformity, milling cutter service life；
F. N number of milling cutter selection scheme is formed；
G. all schemes synthesis evaluations；The integrated evaluating method can be any one method of the prior art, and this is commented
Valency method needs to consider editing objective requirement, for the scheme that all meets of all indexs of editing objective, then high in machining efficiency
Scheme is first-selection.
H. preferred plan is obtained.
(2) the method is as shown in table 5 with existing high-speed milling cutter system of selection comparative analysis result；Wherein, 1～side of method
Method 3 is the Method of Sample Selection that the main milling cutter product vendor of Machining Hardened Steels provides, and the milling cutter that method 4 is provided for Fig. 9 is preferred
Method；
5 milling cutter system of selection of table is contrasted
(3) by table 5, method 4 frequently changes to milling cutter cutting force load, milling according to hardened steel finished surface curvature and hardness
Chatter the impact of dynamic and milled surface topography, evaluated by high-speed milling cutter military service performance synthesis, eliminate and select feature during knife
Parameter iterate caused selection loop excessive the problems such as, it is achieved that milling cutter is preferably cooperateed with cutting parameter and cutting path
Optimize, efficiently solve the collision problem between high-speed milling cutter stock-removing efficiency and milling cutter vibration and machined surface quality.
Embodiment 6
The present embodiment provides a kind of car door hardened steel punch high-speed milling process certification experiment.
Process certification experiment is carried out using car door hardened steel punch, experiment condition and experimental result are as shown in table 6.
Test result indicate that, according to many hardness transitional hardened steel convex surface test specimen High Speed Milling Experiment result, using at a high speed
Milling cutter method for optimizing, the car door hardened steel punch high-speed milling new technology of design, in machined surface quality, the milling cutter quantity for consuming
Be superior to original technique in working (machining) efficiency.
6 car door punch technological experiment result of table and new and old process ration
Claims (3)
1. a kind of method for optimizing of high-speed milling many hardness transitional hardened steel milling cutter, it is characterised in that comprise the following steps successively：
A. determine that many hardness transitional harden steel mold；
B. the hardness of mould and curvature Variation are extracted, design and produce test specimen, the test specimen cover all hardness of mould and
Curvature varying；
C. according to specimen Design milling cutter cutting path；
D. test specimen cutting test；
E. cutting parameter is exported, including milling cutter security, cutting force load, milling cutter vibration, working (machining) efficiency, milled surface topography one
Cause property, milling cutter service life；
F. N number of milling cutter selection scheme is formed；
G. all schemes synthesis evaluations；
H. preferred plan is obtained.
2. the method for optimizing of high-speed milling many hardness transitional hardened steel milling cutter according to claim 1, it is characterised in that step
Test specimen described in rapid b, is spliced by 5 Cr12MoV quenching parts and 1 45# steel part, and its upper surface is by along piece lengths side
It is in the convex surface that 1100mm and 1500mm is distributed and is distributed in 800mm along specimen width directional curvature radius to radius of curvature, and
High 35mm polygonal ring shape boss composition disposed thereon；Test specimen upper surface is distributed with 4 kinds of hardness, respectively HRC30～35,
HRC40～45, HRC50～55, HRC60～65；Test specimen middle part hardness is HRC60～65.
3. the method for optimizing of high-speed milling many hardness transitional hardened steel milling cutter according to claim 1, it is characterised in that step
Milling cutter cutting path described in rapid c is three kinds, designs in the test specimen upper surface and becomes with 14 kinds of finished surface curvature and hardness
Change the cutting zone of feature；Wherein, along the parallel mill cutting path in piece lengths 400mm direction, 5 kinds of different processing are marked off
Surface curvature and the cutting zone of firmness change；Along the parallel mill cutting path in specimen width 300mm direction, 7 kinds are marked off
Different finished surface curvature and the cutting zone of firmness change；The milling cutter cutting path in outside along polygonal annular boss, draws
Separate the cutting zone of 2 kinds of different finished surface curvature and firmness change.
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| CN108972151B (en) * | 2018-08-09 | 2020-05-12 | 沈阳航空航天大学 | Comparison method for use performance of cutter material |
| CN109187253B (en) * | 2018-08-09 | 2020-10-16 | 沈阳航空航天大学 | Method for testing matching of cutter material and processed material |
| CN112179799A (en) * | 2020-09-23 | 2021-01-05 | 中国民航大学 | Experimental method for rapidly testing milling performance of composite material |
| CN114707265B (en) * | 2022-03-30 | 2023-07-25 | 西南交通大学 | Extraction method of evaluation index of five-axis ball milling surface texture morphology |
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| CN101062526A (en) * | 2006-04-27 | 2007-10-31 | 中国兵器工业集团第七0研究所 | Milling method for turbocharger air compressor blade wheel |
| CN101947745A (en) * | 2010-09-03 | 2011-01-19 | 浙江工业大学 | High-speed milling vibration testing device for multi-hardness spliced materials |
| CN102632284A (en) * | 2011-12-14 | 2012-08-15 | 哈尔滨理工大学 | Technological method for controlling consumption of cutter in process of milling large-size quenched steel curve at high speed |
| CN204770202U (en) * | 2015-06-30 | 2015-11-18 | 哈尔滨理工大学 | Many hardness concatenation hardened steel convex curved surface test piece |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101062526A (en) * | 2006-04-27 | 2007-10-31 | 中国兵器工业集团第七0研究所 | Milling method for turbocharger air compressor blade wheel |
| CN101947745A (en) * | 2010-09-03 | 2011-01-19 | 浙江工业大学 | High-speed milling vibration testing device for multi-hardness spliced materials |
| CN102632284A (en) * | 2011-12-14 | 2012-08-15 | 哈尔滨理工大学 | Technological method for controlling consumption of cutter in process of milling large-size quenched steel curve at high speed |
| CN204770202U (en) * | 2015-06-30 | 2015-11-18 | 哈尔滨理工大学 | Many hardness concatenation hardened steel convex curved surface test piece |
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| Title |
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| 多硬度拼接淬硬钢球头铣削加工的数值模拟;文东辉等;《哈尔滨理工大学学报》;20111031;第16卷(第5期);第16－20页 * |
| 汽车大型覆盖件淬硬钢模具切削加工技术;姜彦翠等;《哈尔滨理工大学学报》;20130228;第18卷(第1期);第7－13页 * |
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