CN104942879A - Flat and round cutter and manufacturing method thereof - Google Patents
Flat and round cutter and manufacturing method thereof Download PDFInfo
- Publication number
- CN104942879A CN104942879A CN201510400137.0A CN201510400137A CN104942879A CN 104942879 A CN104942879 A CN 104942879A CN 201510400137 A CN201510400137 A CN 201510400137A CN 104942879 A CN104942879 A CN 104942879A
- Authority
- CN
- China
- Prior art keywords
- flat
- dise knife
- blade
- cutterhead
- installing hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Forests & Forestry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
Abstract
The invention discloses a flat and round cutter and a manufacturing method thereof and belongs to the field of machining of cutters. The flat and round cutter comprises a center hole, a cutter head and a blade, wherein the center hole is located in the center of the cutter head, the blade is located on the outer ring of the cutter head, a cutting edge is arranged on the outer ring of the blade, the cutting edge angle delta of the cutting edge is in a range of 13-18 degrees, and threaded holes and mounting holes are formed in the cutter head. The flat and round cutter is manufactured from an alloy material comprising special elements under strictly controlled technological conditions through steps such as blank forging, isothermal spheroidizing, preliminary processing, heat treatment, rough grinding, leveling, tempering, deep processing and the like, the cutter has very high abrasion resistance while meeting the requirement for the sharpness, the service life is long, and the cutting edge is low in abrasion loss and free of cracking after long-term usage.
Description
Technical field
The invention belongs to tool sharpening field, more particularly, relate to a kind of flat dise knife and manufacture method thereof.
Background technology
Flat dise knife is one of vitals of cutting machine equipment.Slitter blade how is selected to be decide according to the difference of cutting material category and thickness.Form of the cutting side of the comprising cutter of usual slitter blade is cut and is cut with dise knife.It is exactly as razor that side's cutter is cut, and is fixed on by blade on the knife rest of cutting machine, is fallen by cutter in material running, material is longitudinally cut by cutter, cuts object to reach.Dise knife cut mainly contain upper and lower cutting disc shear and dise knife squash type cut two kinds of modes.Dise knife cut be cut the materials such as thick film, composite thick film, paper mainly cut mode.Cut material membrane material thickness to advise selecting dise knife to cut more than 100 μm.Dise knife squash type cuts mode both can cut thinner plastic sheeting, also thicker paper, non-woven fabrics etc. can be cut, that one cuts mode eaily, cutting in industry, the performance of flat dise knife and stability are the restraining factors affecting industry development always, and the instability of flat dise knife performance not only can make to cut operation and not reach index request, and make to cut material producing setation limit and produce and a large amount of cut break flour etc., cause great waste, add the production cost of enterprise.
Chinese Patent Application No. is 201020693689.8, authorized announcement date is that the patent application document on July 27th, 2011 discloses a kind of Combined disc blade, comprise the disk cutter hub being provided with installing hole and keyway, the periphery of cutter hub is the conical surface, the point of a knife of annular is installed with in the bigger diameter end welding of disk cutter hub, described point of a knife is carbide alloy material, all the other cutter hubs adopt ordinary carbon steel, this method by means of only improving the making material of blade and improve blade capabilities and stability be have very much circumscribed, not only make the manufacturing process of blade loaded down with trivial details, and new problem can be brought, such as the stability and service life etc. of two kinds of manufactured materials joining places.Chinese Patent Application No. is 201310610181.5, and Shen Qing Publication day is the Technology for Heating Processing that the patent application document on March 12nd, 2014 discloses a kind of cutting disc, comprises the steps: 1) cutting disc is preheated to 600-650 DEG C by heating furnace; 2) quenched by the cutting disc after preheating, hardening heat is 1050-1100 DEG C, quenches to put into aviation kerosine after 1 hour and soak and cool for 3 hours; 3) cutting disc after quench cooled is put into tempering furnace and carry out tempering, temperature is 400-420 DEG C, puts into machine oil immersion and cool for 3 hours after tempering; 4) cooled for tempering cutting disc is heated to 1100-1200 DEG C with the firing rate of 400 DEG C/min in a vacuum, then drops into immediately in the liquid nitrogen of-180 DEG C and cool rapidly; 5) cooled cutter is heated to 250 DEG C, then puts into quartz sand and naturally cool.The Technology for Heating Processing of this disclosure of the invention is not suitable for the flat dise knife of certain material composition, and the cutter hardness after oil quenching is inadequate, poor toughness, and the processing step of this invention is too many, operates loaded down with trivial details, and is not suitable for the less flat dise knife of blade angle.
Summary of the invention
1. the problem that will solve
The problems such as the poor toughness existed for existing flat dise knife, stability is low, service life is short, the invention provides a kind of flat dise knife and manufacture method thereof.Flat dise knife structure of the present invention comprises centre bore, cutterhead, blade, edge, screwed hole and installing hole, the blade angle δ of edge is 13 ~ 18 °, adopt the alloy material of special elements composition to manufacture under the strict process conditions controlled to obtain, there is when meeting sharpness requirement very strong anti-wear performance, long service life, edge after a long time use wear extent is little, does not burst apart.
2. technical scheme
In order to solve the problem, the technical solution adopted in the present invention is as follows:
A kind of flat dise knife, its shape is circular blade, comprises centre bore, cutterhead and blade, described centre bore is positioned at the center of cutterhead, described blade is positioned on the outer shroud of cutterhead, and the outer shroud of described blade is provided with edge, and the blade angle δ of described edge is 13 ~ 18 °; The angle γ of described blade is 1.25 ~ 1.60 °; The depth of parallelism≤0.002 of described cutterhead.
Preferably, described cutterhead is provided with screwed hole, the first installing hole and the second installing hole, and described screwed hole has four, is 101 ~ 102mm apart from the length at flat dise knife center; First installing hole has eight, and be 53.5 ~ 54.5mm apart from the length at flat dise knife center, the second installing hole has four, is 50.5 ~ 51.5mm apart from the length at flat dise knife center, screwed hole, the first installing hole and be uniformly distributed on cutterhead.
Preferably, the angle α of the line at described screwed hole peace dise knife center and the line at the second installing hole peace dise knife center is 45 °; The angle β of the described line at the first installing hole peace dise knife center and the line at the second installing hole peace dise knife center is 25 °.
Preferably, surface roughness≤0.8 of described cutterhead and edge; Surface roughness≤1.6 of described blade.
The manufacture method of above-mentioned a kind of flat dise knife, the steps include:
(1) the raw-material preparation of blank:
Forging rough forging is adopted to obtain, the mass percent of this rough forging component is: C:1.05-1.40%, Mn:0.40-0.65%, Si:0.32-0.40%, Cr:11.00-12.50%, W:1.50-2.50%, V:0.15-0.30%, Mo:0.40-0.60%, Ni:0.40-0.50%, S :≤0.020%, P :≤0.027%, and surplus is Fe;
(2) the isothermal spheroidizing process of rough forging:
The rough forging obtained in step (1) is carried out annealing in process, and holding temperature is 860-890 DEG C, and temperature retention time is 1.5-2.5h, isothermal 2.5-3.5h when cooling to 730 ~ 750 DEG C with the furnace;
(3) preliminary working of rough forging:
Rough forging Vehicle Processing after isothermal spheroidizing process is become the primary shape of flat dise knife and smooth, retain the surplus of 1mm;
(4) heat treatment of flat dise knife:
Will through the flat dise knife of step (3) Vehicle Processing, first be heated to 610-630 DEG C of insulation 1-2h, then 800-820 DEG C of insulation 1-2h is heated to, and then be heated to 1010-1030 DEG C insulation 20-40min after quenching (mass fraction of quenching liquid constituent and each component is: waterglass 10-15 part, NaOH 1-1.5 part, urge cold multiple agent 0.5-1 part, sodium chloride 18-25 part, surplus is water, cold multiple agent is wherein urged to be polyisobutene and the EPDM mixture that forms of 2:1 in mass ratio), again through subzero treatment after cooling, the temperature of subzero treatment is-200 to-215 DEG C, keep 1-1.5h, air cooling is to normal temperature,
(5) corase grind of flat dise knife and smoothing:
Two planes of the flat dise knife of corase grind after step (4) heat treatment, then carry out smoothing and ensure that its depth of parallelism meets the demands;
(6) tempering:
Flat dise knife after smoothing in step (5) is carried out temper, and temperature is 350-400 DEG C, carries out second time tempering after air cooling to room temperature, and temperature is 240-270 DEG C, after air cooling at 170-190 DEG C ageing strengthening 8-12h;
(7) deep processing of flat dise knife:
By the flat dise knife after temper in step (6), further deep processing, the steps include:
A, look for benchmark;
B, centre bore chamfering;
C, the cutterhead plane of refining flat dise knife and edge bevel;
D, fine grinding edge;
The detection of F, flat dise knife, whether detection blade angle, the depth of parallelism, surface roughness be qualified.
Preferably, component and the mass percent thereof of the middle rough forging of described step (1) are: C:1.15%, Mn:0.65%, Si:0.36%, Cr:12.00%, W:1.70%, V:0.23%%, Mo:0.46%, Ni:0.40%, S :≤0.020%, P :≤0.027%, surplus is Fe.
Preferably, firing rate≤100 DEG C in described step (2)/h.
Preferably, in described step (4), the heat treatment of flat dise knife is first heated to 620 DEG C of insulation 1.5h, then 815 DEG C of insulation 1.5h are heated to, and then quench after being heated to 1020 DEG C of insulation 30min, again through subzero treatment after cooling, the temperature of subzero treatment is-210 DEG C, and keep 1.2h, air cooling is to normal temperature.
Depend on the service life of edge the service life of flat dise knife to a great extent, under normal circumstances, blade angle is less, its sharpness is higher, the burr produced when cutting material and break flour few, but simultaneously its service life is also shorter, how to balance service life of flat dise knife and blade angle is research emphasis in field always.A kind of method improving flat dise knife service life improves the making material of flat dise knife, but find that the improvement material manufacturing the employing of flat dise knife is only some existing conventional alloy materials through retrieval, not from innovating material component in fact, and existing manufacturing process existing defects, be unfavorable for the wearability and the toughness that improve flat dise knife, and existing Technology for Heating Processing is not suitable for the less flat dise knife of blade angle, easily there is hardening crack, the phenomenon such as curved of quenching, have a strong impact on service life, and in use easily security incident has occurred.Flat dise knife of the present invention adopts the alloy material manufacture of particular components to obtain, because the edge of this kind of flat dise knife is thinner, when adopting normal quenching and Technology for Heating Processing, easily burst apart in fine grinding edge process or be out of shape, product defect rate is higher, is about 8%, and adopt manufacturing process of the present invention, select quenching liquid and the Technology for Heating Processing of special composition, make defect rate be reduced to about 3%, effect highly significant.The material manufacturing flat dise knife in the present invention is through that long-term practice and experimental study obtain, it is high that the flat dise knife adopting manufacture method of the present invention to obtain has anti-wear performance, good toughness, cutting ability is excellent, the advantages such as long service life, heat treatment condition in the present invention makes the performance of alloy material reach best, after quenching, hardness is moderate, the quenching liquid used in the present invention can effectively be avoided by hardness after common rapid quenching oil hardening not enough, interior tissue morphological inhomogeneity, equivalent risk easy to crack, ensure that the hardness of the flat dise knife after quenching is strict controlled between 61-63HRC, meet cutting demand.
3. beneficial effect
Compared to prior art, beneficial effect of the present invention is:
(1) flat dise knife blade angle of the present invention is 13 ~ 18 °, and sharpness is very high, can not produce burr and break flour and otch is smooth, the depth of parallelism≤0.002 of cutterhead, stability of rotation in working angles when cutting material, and security performance is high;
(2) flat dise knife of the present invention is evenly provided with screwed hole, the first installing hole and the second installing hole, and the angle α of the line at the line at screwed hole peace dise knife center and the second installing hole peace dise knife center is 45 °, the angle β of the line at the first installing hole peace dise knife center and the line at the second installing hole peace dise knife center is 25 °, under this condition, flat dise knife stability in working angles is the highest, and edge not easily bursts apart;
(3) be processed by rational composition and the Technology for Heating Processing of the flat dise knife of the present invention control, the flat dise knife wearability obtained is good, not yielding, edge is wear-resistant, not easily burst apart, and long service life, at least extends 60% than common flat dise knife service life;
(4) quenching degree of quenching liquid to flat dise knife blank of the present invention's employing is good, and cooling velocity is moderate, and the flat dise knife interior tissue form after quenching is even, and strict control quenching hardness is 61-63HRC, meets cutting demand;
(5) the edge length of the flat dise knife of the present invention is 3-4mm, and the angle γ of blade is 1.25 ~ 1.60 °, and it is minimum that the flat dise knife under this condition cuts off resistance in working angles, and mar proof is maximum.
Accompanying drawing explanation
Fig. 1 is the structural representation of the flat dise knife of the present invention;
Fig. 2 is flat dise knife side view of the present invention and A position partial enlarged drawing.
In figure: 1, centre bore; 2, cutterhead; 3, blade; 4, edge; 5, screwed hole; 6, the first installing hole; 7, the second installing hole.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1
As depicted in figs. 1 and 2, a kind of flat dise knife, its shape is circular blade, excircle dimension is 610mm, and comprise centre bore 1, cutterhead 2 and blade 3, centre bore 1 is positioned at the center of cutterhead 2, blade 3 is positioned on the outer shroud of cutterhead 2, the outer shroud of blade 3 is provided with edge 4, and the blade angle δ of edge 4 is 15 °, and edge length is 3mm; The angle γ of blade 3 is 1.42 °; The depth of parallelism≤0.001 of cutterhead 2.Cutterhead 2 is provided with screwed hole 5, first installing hole 6 and the second installing hole 7, and screwed hole 5 has four, is 101.5mm apart from the length at flat dise knife center; First installing hole 6 has eight, is 54mm apart from the length at flat dise knife center, and the second installing hole 7 has four, is 51mm apart from the length at flat dise knife center, screwed hole 5, first installing hole 6 and being uniformly distributed on cutterhead 2.The angle α of the line at screwed hole 5 peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole 7 is 45 °; The angle β of the line at described first installing hole 6 peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole 7 is 25 °.The surface roughness of cutterhead 2 and edge 4 is 0.8; The surface roughness of described blade 3 is 1.6.
The method manufacturing above-mentioned flat dise knife is:
(1) the raw-material preparation of blank:
Forging rough forging is adopted to obtain, the mass percent of this rough forging component is: C:1.15%, Mn:0.65%, Si:0.36%, Cr:12.00%, W:1.70%, V:0.23%, Mo:0.46%, Ni:0.40%, S :≤0.020%, P :≤0.027%, and surplus is Fe;
(2) the isothermal spheroidizing process of rough forging:
The rough forging obtained in step (1) is carried out annealing in process, and firing rate is 100 DEG C/h, and holding temperature is 880 DEG C, and temperature retention time is 2.0h, isothermal 3.0h when cooling to 740 DEG C with the furnace;
(3) preliminary working of rough forging:
Rough forging Vehicle Processing after Quenching Treatment is become the primary shape of flat dise knife and smooth, retain the surplus of 1mm;
(4) heat treatment of flat dise knife:
Through the flat dise knife of step (3) Vehicle Processing, will first be heated to 620 DEG C of insulation 1.5h, then be heated to 815 DEG C of insulation 1.5h, and then quench after being heated to 1020 DEG C of insulation 30min, again through subzero treatment after cooling, the temperature of subzero treatment is-210, keep 1.2h, air cooling is to normal temperature; The mass fraction of quenching liquid constituent and each component is: waterglass 12 parts, 1.5 parts, NaOH, urge cold multiple agent 1 part, 20 parts, sodium chloride, and surplus is water, wherein urges cold multiple agent to be polyisobutene and the EPDM mixture that forms of 2:1 in mass ratio.
(5) corase grind of flat dise knife and smoothing:
Two planes of the flat dise knife of corase grind after step (4) heat treatment, then carry out smoothing and ensure that its depth of parallelism meets the demands;
(6) tempering:
Flat dise knife after smoothing in step (5) is carried out temper, and temperature is 350 DEG C, carries out second time tempering after air cooling to room temperature, and temperature is 260 DEG C, after air cooling at 180 DEG C ageing strengthening 10h;
(7) deep processing of flat dise knife:
By the flat dise knife after temper in step (6), further deep processing, the steps include:
A, look for benchmark;
B, centre bore chamfering;
C, the cutterhead plane of refining flat dise knife and edge bevel;
D, fine grinding edge;
The detection of F, flat dise knife, whether detection blade angle, the depth of parallelism, surface roughness be qualified.
The hardness of the flat dise knife manufactured in the present embodiment is 63HRC, the cutterhead surface depth of parallelism is high, stable performance in working angles, edge is sharp wear-resistant, when manufacturing flat dise knife of the present invention according to the manufacture method provided in the present embodiment, the edge rate of bursting apart is only 3%, long service life is (compared with existing flat dise knife, service life extends about 55%), the flat dise knife interior tissue form obtained is manufactured homogeneous under the strict process conditions controlled, even if also not easily ftracture by force unbalance in working angles, there is very strong toughness; Flat dise knife in use cutting resistance is little, and efficiency is high.
Embodiment 2
As depicted in figs. 1 and 2, a kind of flat dise knife, its shape is circular blade, comprise centre bore 1, cutterhead 2 and blade 3, centre bore 1 is positioned at the center of cutterhead 2, and blade 3 is positioned on the outer shroud of cutterhead 2, and the outer shroud of blade 3 is provided with edge 4, the blade angle δ of edge 4 is 13 °, and edge length is 3mm; The angle γ of blade 3 is 1.25 °; The depth of parallelism≤0.001 of cutterhead 2.Cutterhead 2 is provided with screwed hole 5, first installing hole 6 and the second installing hole 7, and screwed hole 5 has four, is 101mm apart from the length at flat dise knife center; First installing hole 6 has eight, is 53.5mm apart from the length at flat dise knife center, and the second installing hole 7 has four, is 50.5mm apart from the length at flat dise knife center, screwed hole 5, first installing hole 6 and being uniformly distributed on cutterhead 2.The angle α of the line at screwed hole 5 peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole 7 is 45 °; The angle β of the line at described first installing hole 6 peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole 7 is 25 °.The surface roughness of cutterhead 2 and edge 4 is 0.4; The surface roughness of described blade 3 is 0.8.
The method manufacturing above-mentioned flat dise knife is:
(1) the raw-material preparation of blank:
Forging rough forging is adopted to obtain, the mass percent of this rough forging component is: C:1.05%, Mn:0.50%, Si:0.32%, Cr:12.50%, W:1.50%, V:0.15%, Mo:0.60%, Ni:0.50%, S :≤0.020%, P :≤0.027%, and surplus is Fe;
(2) the isothermal spheroidizing process of rough forging:
The rough forging obtained in step (1) is carried out annealing in process, and firing rate is 90 DEG C/h, and holding temperature is 860 DEG C, and temperature retention time is 2.5h, isothermal 3.5h when cooling to 730 DEG C with the furnace;
(3) preliminary working of rough forging:
Rough forging Vehicle Processing after Quenching Treatment is become the primary shape of flat dise knife and smooth, retain the surplus of 1mm;
(4) heat treatment of flat dise knife:
Through the flat dise knife of step (3) Vehicle Processing, will first be heated to 610 DEG C of insulation 2h, then be heated to 820 DEG C of insulation 1h, and then quench after being heated to 1010 DEG C of insulation 40min, again through subzero treatment after cooling, the temperature of subzero treatment is-200 DEG C, keep 1.5h, air cooling is to normal temperature; The mass fraction of quenching liquid constituent and each component is: waterglass 10 parts, 1 part, NaOH, urge cold multiple agent 0.5 part, 18 parts, sodium chloride, and surplus is water, wherein urges cold multiple agent to be polyisobutene and the EPDM mixture that forms of 2:1 in mass ratio
(5) corase grind of flat dise knife and smoothing:
Two planes of the flat dise knife of corase grind after step (4) heat treatment, then carry out smoothing and ensure that its depth of parallelism meets the demands;
(6) tempering:
Flat dise knife after smoothing in step (5) is carried out temper, and temperature is 370 DEG C, carries out second time tempering after air cooling to room temperature, and temperature is 240 DEG C, after air cooling at 170 DEG C ageing strengthening 12h;
(7) deep processing of flat dise knife:
By the flat dise knife after temper in step (6), further deep processing, the steps include:
A, look for benchmark;
B, centre bore chamfering;
C, the cutterhead plane of refining flat dise knife and edge bevel;
D, fine grinding edge;
The detection of F, flat dise knife, whether detection blade angle, the depth of parallelism, surface roughness be qualified.
The hardness of the flat dise knife manufactured in the present embodiment is 61HRC, the cutterhead surface depth of parallelism high (depth of parallelism is 0.001), stable performance in working angles, edge is sharp wear-resistant, flat dise knife is after employing 3 days, edge wear extent is only 10%, when manufacturing flat dise knife of the present invention according to the manufacture method provided in the present embodiment, the edge rate of bursting apart is only 2.6%, long service life is (compared with existing flat dise knife, service life extends about 60%), the flat dise knife interior tissue form obtained is manufactured homogeneous under the strict process conditions controlled, even if also not easily ftracture by force unbalance in working angles, there is very strong toughness, flat dise knife in use cutting resistance is little, and efficiency is high.
Embodiment 3
As depicted in figs. 1 and 2, a kind of flat dise knife, its shape is circular blade, comprise centre bore 1, cutterhead 2 and blade 3, centre bore 1 is positioned at the center of cutterhead 2, and blade 3 is positioned on the outer shroud of cutterhead 2, the outer shroud of blade 3 is provided with edge 4, and the blade angle δ of edge 4 is 18 °; The angle γ of blade 3 is 1.60 °; The depth of parallelism≤0.002 of cutterhead 2.Cutterhead 2 is provided with screwed hole 5, first installing hole 6 and the second installing hole 7, and screwed hole 5 has four, is 102mm apart from the length at flat dise knife center; First installing hole 6 has eight, is 54.5mm apart from the length at flat dise knife center, and the second installing hole 7 has four, is 51.5mm apart from the length at flat dise knife center, screwed hole 5, first installing hole 6 and being uniformly distributed on cutterhead 2.The angle α of the line at screwed hole 5 peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole 7 is 45 °; The angle β of the line at described first installing hole 6 peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole 7 is 25 °.The surface roughness of cutterhead 2 and edge 4 is 0.4; The surface roughness of described blade 3 is 0.4.
The method manufacturing above-mentioned flat dise knife is:
(1) the raw-material preparation of blank:
Forging rough forging is adopted to obtain, the mass percent of this rough forging component is: C:1.40%, Mn:0.40%, Si:0.40%, Cr:11.00%, W:2.50%, V:0.30%, Mo:0.40%, Ni:0.47%, S :≤0.020%, P :≤0.027%, and surplus is Fe;
(2) the isothermal spheroidizing process of rough forging:
The rough forging obtained in step (1) is carried out annealing in process, and firing rate is 70 DEG C/h, and holding temperature is 890 DEG C, and temperature retention time is 1.5h, isothermal 2.5h when cooling to 750 DEG C with the furnace;
(3) preliminary working of rough forging:
Rough forging Vehicle Processing after Quenching Treatment is become the primary shape of flat dise knife and smooth, retain the surplus of 1mm;
(4) heat treatment of flat dise knife:
Through the flat dise knife of step (3) Vehicle Processing, will first be heated to 630 DEG C of insulation 1h, then be heated to 800 DEG C of insulation 1h, and then quench after being heated to 1030 DEG C of insulation 20min, again through subzero treatment after cooling, the temperature of subzero treatment is-215 DEG C, keep 1h, air cooling is to normal temperature; The mass fraction of quenching liquid constituent and each component is: waterglass 15 parts, 1.5 parts, NaOH, urge cold multiple agent 0.9 part, 25 parts, sodium chloride, and surplus is water, wherein urges cold multiple agent to be polyisobutene and the EPDM mixture that forms of 2:1 in mass ratio
(5) corase grind of flat dise knife and smoothing:
Two planes of the flat dise knife of corase grind after step (4) heat treatment, then carry out smoothing and ensure that its depth of parallelism meets the demands;
(6) tempering:
Flat dise knife after smoothing in step (5) is carried out temper, and temperature is 400 DEG C, carries out second time tempering after air cooling to room temperature, and temperature is 270 DEG C, after air cooling at 190 DEG C ageing strengthening 8h;
(7) deep processing of flat dise knife:
By the flat dise knife after temper in step (6), further deep processing, the steps include:
A, look for benchmark;
B, centre bore chamfering;
C, the cutterhead plane of refining flat dise knife and edge bevel;
D, fine grinding edge;
The detection of F, flat dise knife, whether detection blade angle, the depth of parallelism, surface roughness be qualified.
The hardness of the flat dise knife manufactured in the present embodiment is 62HRC, the cutterhead surface depth of parallelism high (depth of parallelism is 0.002), stable performance in working angles, edge is sharp wear-resistant, flat dise knife is after employing 4 days, edge wear extent is only 15%, when manufacturing flat dise knife of the present invention according to the manufacture method provided in the present embodiment, the edge rate of bursting apart is only 3.3%, long service life is (compared with existing flat dise knife, service life extends about 57%), the flat dise knife interior tissue form obtained is manufactured homogeneous under the strict process conditions controlled, even if also not easily ftracture by force unbalance in working angles, there is very strong toughness, flat dise knife in use cutting resistance is little, and efficiency is high.
Claims (8)
1. a flat dise knife, its shape is circular blade, comprise centre bore (1), cutterhead (2) and blade (3), described centre bore (1) is positioned at the center of cutterhead (2), described blade (3) is positioned on the outer shroud of cutterhead (2), the outer shroud of described blade (3) is provided with edge (4), it is characterized in that: the blade angle δ of described edge (4) is 13 ~ 18 °; The angle γ of described blade (3) is 1.25 ~ 1.60 °; The depth of parallelism≤0.002 of described cutterhead (2).
2. the flat dise knife of one according to claim 1, it is characterized in that: described cutterhead (2) is provided with screwed hole (5), the first installing hole (6) and the second installing hole (7), described screwed hole (5) has four, is 101 ~ 102mm apart from the length at flat dise knife center; First installing hole (6) has eight, be 53.5 ~ 54.5mm apart from the length at flat dise knife center, second installing hole (7) has four, be 50.5 ~ 51.5mm apart from the length at flat dise knife center, screwed hole (5), the first installing hole (6) and be uniformly distributed on cutterhead (2).
3. the flat dise knife of one according to claim 2, is characterized in that: the angle α of the line at described screwed hole (5) peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole (7) is 45 °; The angle β of the line at described first installing hole (6) peaceful dise knife center and the line at the peaceful dise knife center of the second installing hole (7) is 25 °.
4. the flat dise knife of one according to claim 3, is characterized in that: surface roughness≤0.8 of described cutterhead (2) and edge (4); Surface roughness≤1.6 of described blade (3).
5. the manufacture method of a kind of flat dise knife according to claim 1, the steps include:
(1) the raw-material preparation of blank:
Forging rough forging is adopted to obtain, the mass percent of this rough forging component is: C:1.05-1.40%, Mn:0.40-0.65%, Si:0.32-0.40%, Cr:11.00-12.50%, W:1.50-2.50%, V:0.15-0.30%, Mo:0.40-0.60%, Ni:0.40-0.50%, S :≤0.020%, P :≤0.027%, and surplus is Fe;
(2) the isothermal spheroidizing process of rough forging:
The rough forging obtained in step (1) is carried out annealing in process, and holding temperature is 860-890 DEG C, and temperature retention time is 1.5-2.5h, isothermal 2.5-3.5h when cooling to 730 ~ 750 DEG C with the furnace;
(3) preliminary working of rough forging:
Rough forging Vehicle Processing after annealing in process is become the primary shape of flat dise knife and smooth, retain the surplus of 1mm;
(4) heat treatment of flat dise knife:
Will through the flat dise knife of step (3) Vehicle Processing, first be heated to 610-630 DEG C of insulation 1-2h, then 800-820 DEG C of insulation 1-2h is heated to, and then quench after being heated to 1010-1030 DEG C of insulation 20-40min, again through subzero treatment after cooling, the temperature of subzero treatment is-200 to-215 DEG C, and keep 1-1.5h, air cooling is to normal temperature;
(5) corase grind of flat dise knife and smoothing:
Two planes of the flat dise knife of corase grind after step (4) heat treatment, then carry out smoothing and ensure that its depth of parallelism meets the demands;
(6) tempering:
Flat dise knife after smoothing in step (5) is carried out temper, and temperature is 350-400 DEG C, carries out second time tempering after air cooling to room temperature, and temperature is 240-270 DEG C, after air cooling at 170-190 DEG C ageing strengthening 8-12h;
(7) deep processing of flat dise knife:
By the flat dise knife after temper in step (6), further deep processing, the steps include:
A, look for benchmark;
B, centre bore chamfering;
C, the cutterhead plane of refining flat dise knife and edge bevel;
D, fine grinding edge;
The detection of F, flat dise knife, whether detection blade angle, the depth of parallelism, surface roughness be qualified.
6. the manufacture method of a kind of flat dise knife according to claim 5, it is characterized in that: component and the mass percent thereof of the middle rough forging of described step (1) are: C:1.15%, Mn:0.65%, Si:0.36%, Cr:12.00%, W:1.70%, V:0.23%, Mo:0.46%, Ni:0.40%, S :≤0.020%, P :≤0.027%, surplus is Fe.
7. the manufacture method of a kind of flat dise knife according to claim 5, is characterized in that: firing rate≤100 DEG C/h in described step (2).
8. the manufacture method of a kind of flat dise knife according to claim 5, it is characterized in that: in described step (4), the heat treatment of flat dise knife is first heated to 620 DEG C of insulation 1.5h, then 815 DEG C of insulation 1.5h are heated to, and then quench after being heated to 1020 DEG C of insulation 30min, again through subzero treatment after cooling, the temperature of subzero treatment is-210 DEG C, and keep 1.2h, air cooling is to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400137.0A CN104942879B (en) | 2015-07-08 | 2015-07-08 | A kind of flat round knife and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400137.0A CN104942879B (en) | 2015-07-08 | 2015-07-08 | A kind of flat round knife and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104942879A true CN104942879A (en) | 2015-09-30 |
| CN104942879B CN104942879B (en) | 2017-03-01 |
Family
ID=54158203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510400137.0A Active CN104942879B (en) | 2015-07-08 | 2015-07-08 | A kind of flat round knife and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104942879B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441789A (en) * | 2016-01-12 | 2016-03-30 | 安徽锋利锐刀片制造有限公司 | Large circular knife and manufacturing method thereof |
| CN105855809A (en) * | 2016-05-31 | 2016-08-17 | 潍坊市高品机械制造有限公司 | Tooth-shaped disc machining process |
| CN106112390A (en) * | 2016-06-27 | 2016-11-16 | 梧州市旺捷机械制造有限公司 | The processing method of Folium Camelliae sinensis cropping knife |
| CN108127710A (en) * | 2017-12-19 | 2018-06-08 | 安徽华天机械股份有限公司 | A kind of self-locking cutting cutting disc is cut and its processing method |
| CN109280860A (en) * | 2018-11-24 | 2019-01-29 | 安庆市芊芊纸业有限公司 | A kind of wear-resistant blade and its processing technology for cutting leaching membrane paper |
| CN109514195A (en) * | 2018-11-26 | 2019-03-26 | 衡阳思迈科科技有限公司 | The mixing blade and its processing method of elargol processing |
| CN110977030A (en) * | 2019-11-26 | 2020-04-10 | 马鞍山市松林刮刀锯有限公司 | Large-diameter disc all-steel cutter and manufacturing process thereof |
| CN112955292A (en) * | 2018-10-31 | 2021-06-11 | 斯多里机械有限责任公司 | Scoring die, scoring die forming system, and related methods |
| CN113950891A (en) * | 2021-11-12 | 2022-01-21 | 东北农业大学 | Novel disc type cutter of potato dicer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436006A (en) * | 1977-12-29 | 1984-03-13 | Matsushita Electric Industrial Co., Ltd. | Method for cutting lead wires |
| CN1811004A (en) * | 2005-01-14 | 2006-08-02 | 大同特殊钢株式会社 | Cold working die steel |
| CN102218567A (en) * | 2011-05-30 | 2011-10-19 | 襄樊博亚精工机器有限公司 | Improved-alloy compound cutting disc blade |
| CN102306557A (en) * | 2011-06-08 | 2012-01-04 | 南京安顺自动化装备有限公司 | Wave cutter for dividing and cutting machine |
| CN103397159A (en) * | 2013-07-26 | 2013-11-20 | 常熟市劲力工具有限公司 | Production process of slitting cutting disc |
| CN103627877A (en) * | 2013-11-27 | 2014-03-12 | 常熟市劲力工具有限公司 | Thermal treatment process for cutting disc |
-
2015
- 2015-07-08 CN CN201510400137.0A patent/CN104942879B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436006A (en) * | 1977-12-29 | 1984-03-13 | Matsushita Electric Industrial Co., Ltd. | Method for cutting lead wires |
| CN1811004A (en) * | 2005-01-14 | 2006-08-02 | 大同特殊钢株式会社 | Cold working die steel |
| CN102218567A (en) * | 2011-05-30 | 2011-10-19 | 襄樊博亚精工机器有限公司 | Improved-alloy compound cutting disc blade |
| CN102306557A (en) * | 2011-06-08 | 2012-01-04 | 南京安顺自动化装备有限公司 | Wave cutter for dividing and cutting machine |
| CN103397159A (en) * | 2013-07-26 | 2013-11-20 | 常熟市劲力工具有限公司 | Production process of slitting cutting disc |
| CN103627877A (en) * | 2013-11-27 | 2014-03-12 | 常熟市劲力工具有限公司 | Thermal treatment process for cutting disc |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441789A (en) * | 2016-01-12 | 2016-03-30 | 安徽锋利锐刀片制造有限公司 | Large circular knife and manufacturing method thereof |
| CN105855809A (en) * | 2016-05-31 | 2016-08-17 | 潍坊市高品机械制造有限公司 | Tooth-shaped disc machining process |
| CN105855809B (en) * | 2016-05-31 | 2018-05-01 | 潍坊市高品机械制造有限公司 | A kind of flute profile disk processing technology |
| CN106112390A (en) * | 2016-06-27 | 2016-11-16 | 梧州市旺捷机械制造有限公司 | The processing method of Folium Camelliae sinensis cropping knife |
| CN108127710B (en) * | 2017-12-19 | 2020-05-05 | 安徽华天机械股份有限公司 | Self-locking type lower cutter of slitting cutting disc cutter and machining method thereof |
| CN108127710A (en) * | 2017-12-19 | 2018-06-08 | 安徽华天机械股份有限公司 | A kind of self-locking cutting cutting disc is cut and its processing method |
| CN112955292A (en) * | 2018-10-31 | 2021-06-11 | 斯多里机械有限责任公司 | Scoring die, scoring die forming system, and related methods |
| CN112955292B (en) * | 2018-10-31 | 2024-02-06 | 斯多里机械有限责任公司 | Scoring mold, scoring mold forming system, and related methods |
| US11958205B2 (en) | 2018-10-31 | 2024-04-16 | Stolle Machinery Company, Llc | Score die, score die forming system, and associated method |
| CN109280860A (en) * | 2018-11-24 | 2019-01-29 | 安庆市芊芊纸业有限公司 | A kind of wear-resistant blade and its processing technology for cutting leaching membrane paper |
| CN109514195A (en) * | 2018-11-26 | 2019-03-26 | 衡阳思迈科科技有限公司 | The mixing blade and its processing method of elargol processing |
| CN110977030A (en) * | 2019-11-26 | 2020-04-10 | 马鞍山市松林刮刀锯有限公司 | Large-diameter disc all-steel cutter and manufacturing process thereof |
| CN113950891A (en) * | 2021-11-12 | 2022-01-21 | 东北农业大学 | Novel disc type cutter of potato dicer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104942879B (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104942879A (en) | Flat and round cutter and manufacturing method thereof | |
| CN104908079B (en) | One cuts cutting disc and manufacture method thereof | |
| CN104908071B (en) | A kind of special-shaped slitting blade and manufacture method thereof | |
| CN103753413B (en) | A kind of processing PCB N blade peripheral grinding wheel | |
| CN102172823A (en) | Multi-blade polycrystalline diamond (PCD) milling tool for processing carbon fiber reinforced plastics and manufacturing method thereof | |
| CN102189390B (en) | Method for producing scrape cutter blade | |
| CN104741693B (en) | Pendulum-type concave-convex shear blade | |
| CN104923849B (en) | A kind of longitudinal shearing slitting cylinder blade and its manufacture method | |
| CN105441789B (en) | Large circular knife and manufacturing method thereof | |
| CN101954571B (en) | Manufacturing process of 0.68 mm nonmagnetic alloy balls | |
| CN106862649B (en) | A kind of high-precision disc rolling shearing blade and its manufacturing method | |
| CN104290042A (en) | Anti-cracking and anti-knocking resin grinding wheel | |
| CN104960024B (en) | A kind of manufacture method of disc edge bearing | |
| US10857601B2 (en) | Sawtooth structure with reversed cutting function and its drill series | |
| CN105598859A (en) | Large-pore CBN grinding wheel for machining sliding vanes of compressor | |
| CN103707174B (en) | A kind of flatness method for fine finishing of slitting cylinder blade | |
| CN206536366U (en) | A kind of emery wheel rod | |
| Hood et al. | High-speed ball nose end milling of burn-resistant titanium (BuRTi) alloy | |
| CN102463396A (en) | Method for improving grinding crack of molding gear-grinding machine | |
| CN110014382B (en) | Processing and hardening process for resin cutting sheet | |
| CN108687680A (en) | A kind of forming grinding wheel for roughly grinding hard alloy cutter chip pocket | |
| CN210058531U (en) | Shredder blade | |
| CN102335842A (en) | Grinding method of aluminum alloy workpiece | |
| JP6216676B2 (en) | Manufacturing method of blade for automatic machine | |
| CN110640216A (en) | Cold saw circular saw blade manufacturing process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Flat and round cutter and manufacturing method thereof Effective date of registration: 20200602 Granted publication date: 20170301 Pledgee: Agricultural Bank of China Limited by Share Ltd. Ma'anshan Bo Wang sub branch Pledgor: ANHUI HUATIAN MACHINERY Co.,Ltd. Registration number: Y2020980002685 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230512 Granted publication date: 20170301 Pledgee: Agricultural Bank of China Limited by Share Ltd. Ma'anshan Bo Wang sub branch Pledgor: ANHUI HUATIAN MACHINERY Co.,Ltd. Registration number: Y2020980002685 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |