CN102922038B - Rip cutting cutter - Google Patents
Rip cutting cutter Download PDFInfo
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- CN102922038B CN102922038B CN201210480421.XA CN201210480421A CN102922038B CN 102922038 B CN102922038 B CN 102922038B CN 201210480421 A CN201210480421 A CN 201210480421A CN 102922038 B CN102922038 B CN 102922038B
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- steel
- cutting cutter
- rip cutting
- intermediate layer
- rip
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Abstract
The present invention relates to a kind of rip cutting cutter, it is characterized in that: be the discoid rip cutting cutter formed through Overheating Treatment, be made up of the clad steel formed with the first steel and the second steel less than the first steel crystallization particle diameter, comprise the intermediate layer be made up of the first steel, be arranged at the pair of outer layer of both sides, described intermediate layer respectively, described skin is made up of the second steel, aligns with two skins in intermediate layer, and described at least one, outer place is provided with cutting blade.First steel in rip cutting cutter intermediate layer of the present invention is more cheap than outer field second steel, and the second steel then has better wearability, therefore, and the not only cheapness but also can be life-extending of words as a whole.
Description
Technical field
The present invention relates to the cutter relevant with rip cutting cutter.
Background technology
Rip cutting cutter is usually used to cut the edge compared with thin material, such as banded long edges of plate, and in fact rip cutting cutter is also widely used in continuous cutting material.Publication number be 2983118 Japanese Patent document disclose a kind of edge waste cutter sweep, be a pair rip cutting cutter up and down, around disc-shaped body, place is configured to relative cutting blade and rotates.Material is placed between two rip cutting cutteves, cuts off material according to upper and lower cutting blade.Rip cutting cutter can wear and tear to some extent along with the cutting cutting blade of material, and gradually the knife edge also will become not sharp.Therefore, need to select the reasonable high-speed tool steel grade of some wearabilities.But the good steel grade of wearability, price also can be higher, if use this high abrasion steel grade material to the whole of rip cutting cutter or large portion, will improve the cost of rip cutting cutter.Unexamined Patent 10-146714 publication discloses a kind of rip cutting cutter, covers the hard layer that one deck diamond-like is formed primarily of carbon at the circumference place of disc-shaped body.Now there are some researches show that this hard layer can suppress the wearing and tearing of cutting blade, and relative to using the steel of high abrasion, what reduce rip cutting cutter to a certain extent uses material cost.But the rip cutting cutter of capped hard layer, can not form cutting blade by grinding when wear occurs again.So just have to change cutter entirety, expense can be caused so again to rise, and increase the trouble degree of cutter use.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, provide a kind of with low cost, the rip cutting cutter of long service life.
For achieving the above object, the technical solution used in the present invention is: a kind of rip cutting cutter, it is characterized in that: be the discoid rip cutting cutter formed through Overheating Treatment, be made up of the clad steel formed with the first steel and the second steel less than the first steel crystallization particle diameter, comprise the intermediate layer be made up of the first steel, be arranged at the pair of outer layer of both sides, described intermediate layer respectively, described skin is made up of the second steel, intermediate layer and two skins
alignment, described at least one, outer place is provided with cutting blade.
In a preferred embodiment of the present invention, comprising described pair of outer layer further, is the symmetric shape clamping described intermediate layer, and two described outer places are respectively equipped with cutting blade.
In a preferred embodiment of the present invention, comprising described second steel is further powder high-speed tool steel.
In a preferred embodiment of the present invention, comprising described first steel is further founding high-speed tool steel or mechanical realization steel alloy.
In a preferred embodiment of the present invention, the toughness comprising described first steel is further better than the toughness of the second steel.
The invention solves the defect existed in background technology, there is following beneficial effect:
(1) form intermediate layer than the first steel of the second steel cheapness, better than the first steel wearability the second steel forms outer, and outer place arranges cutting blade, the not only cheapness but also can be life-extending of words as a whole.
(2) pair of outer layer presses intermediate layer and forms symmetrical shape, is conducive to the balance of stress distribution, can suppresses the generation of the bad phenomenon such as distortion.
(3) second steel adopt possesses high tenacity, and the material of the high-quality characteristic of high strength and strong wearability, can improve processability and the durability of cutting blade.
(4) first steel adopt founding high-speed tool steel or mechanical realization steel alloy, can guarantee the necessary intensity of rip cutting cutter entirety on the basis of cheapness.
(5) first steel are higher than the toughness of the second steel, and along with heat treated expansion, contraction, skin can control intermediate layer neatly, also can relax inner stress.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.Fig. 1 is the front view of embodiment of the present invention 1-2;
Fig. 2 is the side view of the embodiment of the present invention 1;
Fig. 3 is embodiment 1 A-A sectional drawing in FIG;
Fig. 4 is the side view of the embodiment of the present invention 2;
Fig. 5 is embodiment 2 A-A sectional drawing in FIG;
Fig. 6 is a kind of front view being different from the rip cutting cutter of embodiment 1,2 of the present invention;
Fig. 7 is the side view of Fig. 6 rip cutting cutter;
Fig. 8 is the ideograph cutting off test;
In figure: 10, rip cutting cutter, 12, axis hole, 14, intermediate layer, 16, outer, 18, cutting blade, 20, rip cutting cutter, 30, rip cutting cutter, 21, material, 22, forward burr, reverse burr, 24, shortcoming portion.
Detailed description of the invention
The present invention is further detailed explanation in conjunction with the accompanying drawings and embodiments now, and these accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1: as Figure 1-3, the rip cutting cutter 10 of embodiment 1, is formed at discoid place, and through is in the conglobate axis hole 12 of thickness direction shape simultaneously.Embed supporting axis at this axis hole 12 place and arrange shearing device.Rip cutting cutter 10 carries out rotary actuation or is driven to rotate centered by axis hole 12, and at the cutting blade 18 of circumferential edges place design, be crushed on tabular processing material and cut, this tabular processing material can be thin plate, such as papery thin plate, resin sheet, sheet metal.
Rip cutting cutter 10, is made up of clad steel, then manufactures through the heat treatment such as quenching and other process of comprising necessary grinding.Described clad steel is fitted by various metals and forms, and form 3-tier architecture, wherein, centre is the first steel, and the first steel both sides configure the second steel respectively.Comparatively speaking, what the first steel adopted is than the second steel grade that steel crystallization particle diameter is large, quality preservation is low, intensity and wearability poor, what the second steel adopted is the steel grade that quality preservation is high, better, the crystallization particle diameter of the second steel reaches more than 10 by austinite grain size test method(s) (JISG05501) and also can be utilized for intensity and wearability.
Above-mentioned first steel can select mechanical realization steel alloy, or founding high-speed steel, such as chromium steel (SCr), manganese steel (SMn), Mn-Cr steel (SMnC), chrome-molybdenum steel (SCM), nickel chromium molybdenum steel (SNCM) or Al-Cr-Mo steel (SACM), used cheap material compared with the second steel.The carbon element content of the first steel is between 0.4%-1.0%, when its carbon is less than 0.4%, necessary intensity can not be obtained time heat treated, toughness can be caused during more than 1.0% not enough and internal stress residue problem can occur, therefore, carbon element content suitable in the first steel, be able to make it heat treated time, obtain necessary intensity and very high toughness, particularly compared with the second steel, the toughness of the first steel wants high.
Above-mentioned second steel also adopts high-speed tool steel, is generally founding high-speed tool steel or powder high-speed tool steel, preferably uses powder high-speed tool steel.Powder high-speed tool steel obtains according to powder metallurgic method, has the steel grade of homogeneous miniaturization tissue.Founding high-speed tool steel be by powder metallurgy beyond method obtain, namely thick than powder high-speed tool structure of steel general high-speed tool steel.When founding high-speed tool steel selected by the second steel, the first steel need select the steel grade larger than the founding high-speed tool steel crystallization particle diameter of the second steel, to ensure that the second steel is more superior than the first steel in intensity and wearability.The carbon element content of the high-speed tool steel that the second steel is selected, in 1.0% ~ 2.2% scope, can obtain necessary toughness, intensity and wearability.When the carbon that the second steel contains less than 1.0% time, wearability will reduce; When more than 2.2%, toughness will be not enough, and the problem of sword breach also likely occurs.
Rip cutting cutter 10, comprises the intermediate layer 14 be made up of the first steel, the pair of outer layer 16 be made up of the second steel of the both sides configuration of interbed 14 hereinto.At least one-sided in intermediate layer 14 skin 16 place arranges cutting blade 18, and cutting blade 18 aligns with outer 16.Particularly, in the present embodiment, two outer 16 places are provided with cutting blade 18 respectively.As Figure 2-3, in rip cutting cutter 10, the skin 16 be made up of the second steel is positioned at outer fix place, and the first steel and the second steel mutually stagger and overlap to form 3 layers of structure in a thickness direction.Rip cutting cutter 10, still by pair of outer layer 16, clamps the symmetric shape of intermediate layer 14 and formation.The intermediate configurations of two skins 16 has intermediate layer 14 can obtain the good degree of balance.More concrete word, rip cutting cutter 10, by clamping the central intermediate layer 14 of its thickness direction, its profile and thickness will form same symmetric figure.Meanwhile, pair of outer layer 16, by clamping the central authorities of thickness direction, profile and thickness will form same symmetric shape.
As Figure 2-3, the ratio that is designed of the thickness in the intermediate layer 14 of rip cutting cutter 10 is outer 16 large.The thickness occurrence of intermediate layer 14 and skin 16, sets according to cutting material and processing conditions.When such as the thickness in intermediate layer 14 is set within the scope of 2mm-30mm, the thickness of outer 16 will be set in 0.lmm-1.5mm, so just can guarantee the general purposes performance of rip cutting cutter 10.
The general purposes of above-mentioned rip cutting cutter 10 refers at least can cut off the lamellar machining object that the thickness be made up of paper, resin or metal is below 0.lmm, is the metal tabular machining object of 3.2mm to multipotency shearing thickness.When the thickness of outer 16 is less than 0.lmm, the cutting blade 18 arranging a pair rip cutting cutter, 10, two rip cutting cutteves 10 face-to-face contacts with each other and cuts, now, even if cutting object is softer resinous lamellar machining object, rip cutting cutter 10 can not obtain practical durability.When cutting the metal tabular processing material of 3.2mm thickness, the thickness of outer 16 is preferably greater than 1.lmm.The thickness of outer 16 can be greater than 1.5mm, but the first steel forming intermediate layer 14 will become large with the thickness proportion of the skin 16 be made up of the second steel of high price, and adopt clad steel, the value in expense will tail off.When outer 16 thick equal 1.5mm time, durability is better.
As Figure 2-3, in rip cutting cutter 10, the edge part of the outer peripheral face formed by outer 16 becomes cutting blade 18 with the dihedral that smooth end face is reported to the leadship after accomplishing a task.The overall through-thickness straight line of rip cutting cutter 10 outer peripheral face extends to form, and being designed angle at outer 16 places is the 85-95 ° of cutting blade 18 being preferably right angle.
Next the preparation method of simple illustratively rip cutting cutter 10.Clad steel is at the overlapping laminating of the both sides of the first steel difference the second steel, by laminated material calendering after heating furnace heating, the first steel and the second steel just can be made to be bonded by metallurgy.At clad steel place, clamp the first steel and make the second steel form symmetrical style.For the clad steel cut out at circular place, distort again after the normalizing, annealing of necessity, then carry out further quenching or tempering, make the first steel and the second hardening of steel.And, grind if desired, cutting blade 18 will be made when grinding to align, then carry out last process.Clamped the intermediate layer 14 be made up of the first steel by the skin 16 of the symmetric figure be made up of the second steel, just obtain rip cutting cutter 10.
The cutting blade 18 that rip cutting cutter 10 is formed, because outer 16 is be made up of, so can extend the life-span of product wearability and all good second steel of intensity.The price of powder high-speed tool steel is more than 4 times of founding high-speed tool steel, but the entirety of rip cutting cutter 10 is not merely made up of the second steel, intermediate layer 14, without the need to reaching the quality of the second steel, is therefore be made up of the first steel of cheapness, this makes it possible to suppression expense.And the rip cutting cutter 10 formed by clad steel be press against by atomic level instrument by the first steel and the second steel, be to not come off such as ensuring coverage film in the aft-loaded airfoil of fitting being carried out in intermediate layer 14 and outer 16.Make the intensity enhancing of rip cutting cutter 10 cutting blade 18 can avoid carrying out the aft-loaded airfoil of such as cover layer, the cutting blade 18 of wearing and tearing can regenerate after grinding again, and the life-span also can extend again.Particularly the tissue of powder high-speed tool steel is fine, homogeneous, and has both high tenacity, high strength, permanent wearability, so utilize powder high-speed tool steel to form outer 16, just can form the miniature circular cutting blade 18 connecting nick shaped closely.Therefore, processability and the durability of cutting blade 18 is improved.Further, founding high-speed tool steel or mechanical realization steel alloy are employed for the first steel, like this can either be cheap, can guarantee again all necessary intensity of rip cutting cutter 10.
Rip cutting cutter 10, be made up of outer 16 and the outer 16 high intermediate layers 14 of Toughness Ratio, expand after outer 16 quench hardenings, shrink, but the change of this expansion, contraction can be prevented by the flexibility in intermediate layer 14 self, and the generation of internal stress can be relaxed.Further, the pair of outer layer 16 of rip cutting cutter 10 clamps intermediate layer 14, and because outer 16 is symmetric designs, intermediate layer 14 is jammed, and can produce and balance with the above-mentioned expansion of two skins 16, contraction change, just can suppress the generation distorted.
Embodiment 2: as illustrated in figures 4-5, rip cutting cutter 20, is with the difference of embodiment 1, outer peripheral face has the radian outside an oblique radius to end face from thickness direction center side, and this radian is designed to the cutting blade 18 of slightly angie type sample at outer 16 places.
In embodiment 1,2, the outer peripheral face of rip cutting cutter 10,20 can be flat condition, and also can be the mediad inner sides of radius bending from thickness direction or picture V shape concave shape, the angle of cutting blade 18 carries out corresponding adjustment according to rapidoprint or condition.
Utilize the rip cutting cutter 10 of embodiment 1 to carry out cut-out test below, concrete materials and structures, the shape of rip cutting cutter 10 used are as follows:
Test example 1: choosing JIS specification is that the chrome-molybdenum steel of SCM440 makes the first steel, choose Hitachi Metals Co., Ltd, powder high-speed tool steel that commodity are called HAP40 as the second steel, the two ends of the first steel are lived by two piece of second steel clamp, produce clad steel.After clad steel cuts out circle, carry out the heat treatment specified, diameter 235mm will be obtained, rip cutting cutter that thickness is 5mm.Above-mentioned heat-treat condition is heat 12 minutes at the temperature of 1160 DEG C again through tempering, finally cools.Rip cutting cutter intermediate layer thickness is 4mm, and two outer layer thickness are respectively 0.5mm.In addition, the shaft hole diameter that rip cutting cutter is formed is 120mm.
Test example 2: choosing JIS specification is that the founding high-speed tool steel of SKH2 makes the first steel, choose Hitachi Metals Co., Ltd, powder high-speed tool steel that commodity are called HAP40 is as the second steel, the two ends of the first steel are lived by two piece of second steel clamp, produce clad steel.Rip cutting cutter 10 in test example 2, except being formed by the clad steel of test example 2, with test example 1 with same shape manufacture.
Comparative example 1: the powder high-speed tool steel that the material manufacturing rip cutting cutter 10 is all the Hitachi Metals Co., Ltd of the second steel use in test example 1-2, commodity are called HAP40.
Comparative example 2: the founding high-speed tool steel that the material manufacturing rip cutting cutter 10 is all the first steel uses in test example 2 JIS specification is SKH2.
Rip cutting cutter 10 in comparative example 1 and comparative example 2, apart from the materials with the condition in test example 1 and shape identical.
Test method: as shown in Figure 8, carries out material 21 with the feeding speed of 100m/min respectively by the rip cutting cutter 10 in above-mentioned test example 1-2 and comparative example 1-2 and cuts off, and tests the life expectancy of each rip cutting cutter 10, and material 21 is the stainless-steel sheet of thick 2mm.Cut off in test, as shown in the expanded view of Fig. 8, forward no matter this wherein which kind of is bad burr, reverse burr 22 or shortcoming portion 24 is just judged as life expectancy when occurring and terminates.
Result of the test: the rip cutting cutter of test example 1 and test example 2, while displaying is than comparative example 2 high-durability, and can judge the durability no less than comparative example 1.At this moment, the result that the rip cutting cutter of test example 1 is more such than the poor durability of the rip cutting cutter of test example 2 can be drawn.Here it is, compared with founding high-speed tool steel, in test example 1, the quench hardening ability of the constituent material chrome-molybdenum steel in rip cutting cutter intermediate layer is low, so the bulk strength of rip cutting cutter will be poorer than test example 2 in test example 1, active force during cut-out will cause plastic deformation a little, and the toe joint place of the rip cutting cutter of test example 2 easily gap occurs.
It should be noted that rip cutting cutter of the present invention is not limited only to aforesaid formation, following change is also possible.
(1) as shown in fig. 6-7, the outer peripheral face of rip cutting cutter 30 is formed slopely inclined plane to opposite side to radial direction from the side of thickness direction.Skin 16 place of extending side is laterally provided with cutting blade 18 and is also fine.Even if like this, clamp the skin 16 of a pair symmetry in intermediate layer 14, often will there is balanced internal stress when heat-treating, even if formed when grinding outer peripheral face after heat treatment to tilt also to be fine.In other words, if the symmetry of the thickness direction of two skins 16 is guaranteed heat treated time, even if it is also feasible for obtaining asymmetrical rip cutting cutter shape in a thickness direction.
(2) shape of cutting blade, is not limited only to aforesaid formation, and the two-edged of blade or two face tilts can be selected.
Above according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, related personnel in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine technical scope according to right.
Claims (5)
1. a rip cutting cutter, it is characterized in that: be the discoid rip cutting cutter formed through Overheating Treatment, be made up of the clad steel formed with the first steel and the second steel less than the first steel crystallization particle diameter, comprise the intermediate layer be made up of the first steel, and be arranged at the pair of outer layer of both sides, described intermediate layer respectively, described skin is made up of the second steel, align with two skins in intermediate layer, described at least one, outer place is provided with cutting blade, described pair of outer layer, is the symmetric shape clamping described intermediate layer;
The toughness of described first steel is better than the toughness of the second steel,
Described skin covers the both sides in described intermediate layer completely.
2. rip cutting cutter according to claim 1, is characterized in that: two described outer places are respectively equipped with cutting blade.
3. rip cutting cutter according to claim 1 and 2, is characterized in that: described second steel is powder high-speed tool steel.
4. rip cutting cutter according to claim 1 and 2, is characterized in that: described first steel is founding high-speed tool steel or mechanical realization steel alloy.
5. rip cutting cutter according to claim 3, is characterized in that: described first steel is the steel alloy of founding high-speed tool steel or mechanical realization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480421.XA CN102922038B (en) | 2012-11-23 | 2012-11-23 | Rip cutting cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480421.XA CN102922038B (en) | 2012-11-23 | 2012-11-23 | Rip cutting cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102922038A CN102922038A (en) | 2013-02-13 |
| CN102922038B true CN102922038B (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210480421.XA Expired - Fee Related CN102922038B (en) | 2012-11-23 | 2012-11-23 | Rip cutting cutter |
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| CN (1) | CN102922038B (en) |
Citations (6)
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| DE2915991A1 (en) * | 1979-04-20 | 1980-10-30 | Salje Ernst | Disc shaped cutting tool - has protective component over edge of vibration reducing cladding and secured to body |
| CN2198060Y (en) * | 1994-01-28 | 1995-05-24 | 武汉钢铁(集团)公司 | Disk shear edge |
| US5578773A (en) * | 1991-08-07 | 1996-11-26 | Erasteel Kloster Aktiebolag | High-speed steel manufactured by powder metallurgy |
| CN2372084Y (en) * | 1999-01-22 | 2000-04-05 | 秦皇岛开发区宏维表面工程技术研究所 | Shear blade |
| CN1360993A (en) * | 2000-12-28 | 2002-07-31 | 富士胶片株式会社 | Cutting knife and cutting method |
| CN1496797A (en) * | 2002-09-27 | 2004-05-19 | 株式会社瑞光 | Cut-off removed device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081787U (en) * | 1990-12-20 | 1991-07-31 | 青岛粉末冶金厂 | Coated blade |
| JPH0788795A (en) * | 1993-09-22 | 1995-04-04 | Mitsubishi Heavy Ind Ltd | Slitter knife |
| JPH10146714A (en) * | 1996-11-12 | 1998-06-02 | Disco Abrasive Syst Ltd | Slitter knife |
| US7194933B2 (en) * | 2002-07-01 | 2007-03-27 | Premark Feg L.L.C. | Composite circular slicer knife |
| CN201592287U (en) * | 2009-10-11 | 2010-09-29 | 襄樊市博亚机械有限公司 | Compound alloy disc knife |
-
2012
- 2012-11-23 CN CN201210480421.XA patent/CN102922038B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2915991A1 (en) * | 1979-04-20 | 1980-10-30 | Salje Ernst | Disc shaped cutting tool - has protective component over edge of vibration reducing cladding and secured to body |
| US5578773A (en) * | 1991-08-07 | 1996-11-26 | Erasteel Kloster Aktiebolag | High-speed steel manufactured by powder metallurgy |
| CN2198060Y (en) * | 1994-01-28 | 1995-05-24 | 武汉钢铁(集团)公司 | Disk shear edge |
| CN2372084Y (en) * | 1999-01-22 | 2000-04-05 | 秦皇岛开发区宏维表面工程技术研究所 | Shear blade |
| CN1360993A (en) * | 2000-12-28 | 2002-07-31 | 富士胶片株式会社 | Cutting knife and cutting method |
| CN1496797A (en) * | 2002-09-27 | 2004-05-19 | 株式会社瑞光 | Cut-off removed device |
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| CN102922038A (en) | 2013-02-13 |
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