CN107127535A - A kind of bimetallic cutter and its manufacture method - Google Patents
A kind of bimetallic cutter and its manufacture method Download PDFInfo
- Publication number
- CN107127535A CN107127535A CN201710400755.4A CN201710400755A CN107127535A CN 107127535 A CN107127535 A CN 107127535A CN 201710400755 A CN201710400755 A CN 201710400755A CN 107127535 A CN107127535 A CN 107127535A
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- China
- Prior art keywords
- cutter
- blade
- cutter hub
- steel
- bimetallic
- 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.)
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Classifications
-
- 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
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Knives (AREA)
Abstract
The present invention discloses a kind of bimetallic cutter, including cutter hub and blade, and described blade is weldingly fixed on cutter hub, and the cutter hub uses stainless steel or stainless iron material, and at least a portion of the blade is powder steel material.Invention additionally discloses the manufacture method of above-mentioned bimetallic cutter, cutter hub is processed into using stainless steel or stainless iron, blade is processed into using powder steel；Described blade is quenched under vacuum and temper, hardening heat scope is at 1150~1210 DEG C, and tempering range is at 530~560 DEG C；The cutter hub and blade of shaping are fixed in fixture, and carry out laser welding；The cutter of welding fabrication is tempered under 530~560 DEG C and nitrogen protection, the time is 0.5~1H, then obtains finished tools after polishing, polishing and put the first edge on a knife or a pair of scissors.In the cutter of the present invention, knife edge part uses powder Steel material, and with good rustless property, the distribution of carbides of its steel is highly uniform, without segregation, has the advantages that hardness is high, wear-resisting, tipping, non-corrosive, toughness is not high.
Description
Technical field
The present invention relates to tooling cost field, more particularly, to a kind of manufacture method of bimetallic cutter.
Background technology
Cutter includes kitchen knife, scissors, cutter, scalpel, survival knife and military dagger etc., and traditional cutting tool choice is suitable
Steel (high-carbon steel formula stainless steel) postforming of being cut, forged, be heat-treated and polished, the disadvantage of these cutters is：
(1) by the use of high-carbon steel as cutter hub material, the hardness after heat treatment can reach HRC65 or so, but encounter hardness
The easy tipping of higher article, service life is shorter, and the edge of a knife easily weares and teares, got rusty, for requiring higher food service industry or doctor
Treating industry can not use, and receive the limitation of industry；
(2) using stainless steel or the cutter of stainless iron, although the problem of solving antirust, but the hardness of cutter
Undesirable (stainless carbon content of steel is below 0.5), after the quenching of general stainless steel or stainless iron hardness HRC40~
Between 55, hardness in the data area easily occurs turned phenomenon when cutting harder article, thus exist hardness and
Toughness can not be taken into account.
The content of the invention
For problems of the prior art, the invention provides a kind of bimetallic cutter and its manufacture method.
Bimetallic cutter in the present invention uses bimetallic material, and cutter hub is common stainless steel or stainless iron, blade part
Divide and use nanometer grade powder steel, lift the hardness and cutting force of blade, it is to avoid whole cutter is dropped using the higher powder steel of cost
The production cost of low cutter, the edge of a knife is not easy to wear or gets rusty, and be particularly suitable for use in the higher food service industry of requirement and medical industry, is beneficial to
Extend cutting-tool's used life.
The present invention in a manufacturing method, carries out independent machine-shaping to cutter hub and blade first, is then welded into cutter, weld
The overall hardness and toughness for being heat-treated, lifting welding portion after connecing.
To realize above-mentioned goal of the invention, concrete technical scheme of the present invention is as follows：
A kind of bimetallic cutter, including cutter hub and blade；
Described blade is weldingly fixed on cutter hub, and the cutter hub uses stainless steel or stainless iron material, the blade
At least a portion is powder steel material.
In the bimetallic cutter of the present invention, knife edge part material is powder steel, with good rustless property, due to being to receive
The powder steel of meter level, the distribution of carbides of its steel is highly uniform, without segregation, is not the powder steel capital in segregation and appearance
Easily broken, the toughness and abrasion resistance properties of steel are very outstanding, are more than 5 times of common stainless steel, the hardness after vacuum heat can
To HRC63~69, have the advantages that hardness it is high, wear-resisting, not tipping, non-corrosive, toughness it is high, that is, save substantial amounts of powder
Steel, while cutting-tool's used life is substantially improved.
It is divided into three layers as preferred, described blade, both sides are stainless steel layer or stainless iron layer, and middle part is powder steel
Layer.
Three layers are used in knife edge part, powder steel is only used in intermediate layer, both sides top layer uses stainless steel, Neng Goujin
One step reduces the consumption of powder steel, reduces the production cost of cutter.
As preferred, fin is provided with the middle part of the solder side of the cutter hub, the solder side of blade is provided with the recessed of cooperation fin
Groove, and thickness of the width equal to the powder steel layer of groove.
Because cutter hub and blade are welding, the structural strength of weld also influences the performance of whole cutter.Cutter hub and knife
The solder side of sword sets fin and groove respectively, by both cooperations, is conducive to two parts welding contraposition to fix, can be lifted
Weld structural strength.
It is used as preferred, one kind in model M390, S290, S390, ASP60 and HAP40 of the powder steel.
Powder steel M390 is a kind of the most widely used material.
Powder steel S290 has high rigidity, high abrasion, main chemical analysis (%)：C carbon：2.01；W tungsten：13.0；Co
Cobalt：11.0；Cr chromium：3.75；Mo molybdenums：2.45；V vanadium：5.05.Hardness can reach HRC66-68 after quenching.
Powder steel S390, weares and teares with high abrasion grain, high tenacity, high compressive strength；Chemical analysis (%)：C carbon：1.64；W
Tungsten：10.40；Co cobalts：7.98；Cr chromium：4.75；Mo molybdenums：2.00；V vanadium：4.80.Heat treatment：Quenching, 730~840 DEG C of preheatings,
1150~1230 DEG C of heating, 520~550 DEG C of temperature, 65~69HRC of tempering hardness.
Powder steel ASP60 originates from Sweden, is a kind of superelevation alloy powder high-speed steel, and the content of its cobalt and vanadium is very high, and
Technology through powder metallurgy is manufactured, and can so allow steel to be very uniform and possess consistent characteristic；Main chemical
Analyze (%)：C：2.3、Cr：4.2、Mo：7.0、W：6.5、Co：10.5；HRC:67~69 DEG C.
Powder steel HAP40, Hitachi Metals HAP40 are the Powder High-speed Steels of CO containing cobalt of Hitachi's development ＆ production.High hardness,
The general-using type high-speed steel that wearability and toughness have both, is adapted to all cutting elements of manufacture, and HAP40 steel grades have fabulous wear-resisting
Property and toughness, better than the cold-working steel of other high alloys.
The present invention chooses 520~550 DEG C of the powder steel temperature of above-mentioned model, and the stainless steel and stainless iron with cutter hub are big
Identical, bulk heat treatmet after welding is caused, technique is adapted.
In the present invention, described bimetallic cutter includes but is not limited to for kitchen knife, scissors, cutter, scalpel, sought survival
Knife, icking tool and military dagger, other any stage properties, as long as meeting the bimetallic material feature of the present invention, i.e. cutter hub and blade
Stainless steel and powder steel is respectively adopted, in protection scope of the present invention etc, institute on lathe and milling machine is further can be extended to
Lathe tool, reamer etc..
In addition, a kind of manufacture method for bimetallic cutter that the present invention is provided, including：
Cutter hub is processed into using stainless steel or stainless iron, blade is processed into using powder steel；
Described blade is quenched under vacuum and temper, hardening heat scope is 1150~1210
DEG C, tempering range is at 530~560 DEG C；
The cutter hub and blade of shaping are fixed in fixture, and carry out laser welding；
The cutter of welding fabrication is tempered under 530~560 DEG C and nitrogen protection, the time is 0.5~1H, then through beating
Finished tools are obtained after grinding, polish and putting the first edge on a knife or a pair of scissors.
As preferred, the time of quenching and temper is carried out under vacuum for 1~2 hour, is repeated 2~3 times.
It is used as preferred, one kind in model M390, S290, S390, ASP60 and HAP40 of the powder steel.
As preferred, the part of counteredge is made using copper in the fixture, heat dispersion during lifting welding, prevents
Only blade is annealed, and can not have gap between blade and cutter hub material.
As preferred, when carrying out laser welding, the Ni-based of 5~10 μ m-thicks should be plated on the solder side of cutter hub and blade
Alloy coat, speed of welding was controlled at 25~35mm/ seconds.
In cutter in the present invention, knife edge part uses powder Steel material, with good rustless property, the carbonization of its steel
Thing distributes very evenly, without segregation, has the advantages that hardness is high, wear-resisting, tipping, non-corrosive, toughness is not high.
Brief description of the drawings
Fig. 1 is scissors (a), dagger (b), scalpel (c), the structure chart of icking tool (d) and cutter (e) in the present invention；
Fixture installation diagram when Fig. 2 is Welding of cutters.
Embodiment
Describe the present invention in detail with reference to embodiment and accompanying drawing, but the present invention is not limited to this.
Cutter as shown in Figure 1, respectively scissors a, dagger b, scalpel c, icking tool d and, in above-mentioned cutter, including
Cutter hub 1 and blade 2.Blade 2 is weldingly fixed on cutter hub 1, wherein, cutter hub 1 uses stainless steel or stainless iron material, blade 2
At least a portion is powder steel material.
The powder steel pattern number used can be one kind in M390, S290, S390, ASP60 and HAP40.Above-mentioned model
520~550 DEG C of powder steel temperature, the stainless steel and stainless iron with cutter hub be roughly the same, bulk heat treatmet after welding, work
Skill is adapted.
Specifically in the present embodiment, scissors a cutter hub 1 is stainless steel, and blade 2 uses M390；Dagger b cutter hub 1 is not
Become rusty iron, and blade 2 uses S390；Scalpel c cutter hub 1 is stainless steel, and blade 2 uses M390；Icking tool d cutter hub 1 is steel alloy,
Blade 2 uses S290；Cutter e cutter hub 1 is stainless steel, and blade 2 uses S290.
In the present embodiment, the portion of material of blade 2 is powder steel, with good rustless property, due to being nano level powder
Last steel, the distribution of carbides of its steel is highly uniform, without segregation, and toughness and abrasion resistance properties are very outstanding, be it is common not
More than 5 times of rust steel, the hardness after vacuum heat can arrive HRC63~69.
In the present embodiment, blade 2 can integrally use powder steel material.In addition, blade 2, which also can be set, is divided into three layers, two
Side is stainless steel layer or stainless iron layer, and middle part is powder steel layer, i.e., powder steel is only used in intermediate layer, both sides top layer is using stainless
Steel matter, can further reduce the consumption of powder steel, reduce the production cost of cutter.
In the present embodiment, the flow of manufacture bimetallic cutter is：Blanking-heat treatment-welding-polishing-finished product.Specific system
Make technique as follows：
First, a kind of powder steel of model is selected to be processed into the shape of required blade；, blade is carried out under vacuum
Quenching and temper, hardening heat scope is at 1150~1210 DEG C, and tempering range is in 530~560 DEG C, the time of processing
For 1~2 hour, repeat 2~3 times；
Secondly, selection stainless steel or stainless iron are as cutter hub material, and process the shape in required cutter hub；
Finally, as shown in Fig. 2 the cutter hub and blade of shaping are fixed in fixture 3, and laser welding is carried out；In fixture
The part 4 of counteredge is made using copper, heat dispersion during lifting welding, prevents blade from annealing, and blade and cutter hub material
Between can not have gap；When carrying out laser welding, the nickel-base alloy of 5~10 μ m-thicks should be plated on the solder side of cutter hub and blade
Coating, speed of welding was controlled at 25~35mm/ seconds；
The cutter of welding fabrication is tempered under 530~560 DEG C and nitrogen protection, the time is 0.5~1H, prevents weld seam from opening
Split, then obtain finished tools after polishing, polishing and put the first edge on a knife or a pair of scissors.
The foregoing is only the preferable implementation example of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of bimetallic cutter, including cutter hub and blade, it is characterised in that：
Described blade is weldingly fixed on cutter hub, and the cutter hub uses stainless steel or stainless iron material, and the blade is at least
A part is powder steel material.
2. bimetallic cutter as claimed in claim 1, it is characterised in that：Described blade is divided into three layers, and both sides are stainless steel
Layer or stainless iron layer, middle part are powder steel layer.
3. bimetallic cutter as claimed in claim 2, it is characterised in that：Fin, knife are provided with the middle part of the solder side of the cutter hub
Groove of the solder side of sword provided with cooperation fin, and thickness of the width equal to the powder steel layer of groove.
4. bimetallic cutter as claimed in claim 3, it is characterised in that：The model M390 of the powder steel, S290,
One kind in S390, ASP60 and HAP40.
5. bimetallic cutter as claimed in claim 1, it is characterised in that：Described bimetallic cutter is kitchen knife, scissors, art designing
One kind in knife, scalpel, survival knife, icking tool and military dagger.
6. a kind of manufacture method of bimetallic cutter, it is characterised in that including：
Cutter hub is processed into using stainless steel or stainless iron, blade is processed into using powder steel；
Described blade is quenched under vacuum and temper, hardening heat scope is returned at 1150~1210 DEG C
Fiery temperature range is at 530~560 DEG C；
The cutter hub and blade of shaping are fixed in fixture, and carry out laser welding；
The cutter of welding fabrication is tempered under 530~560 DEG C and nitrogen protection, the time is 0.5~1H, then through polishing, throwing
Light and finished tools are obtained after putting the first edge on a knife or a pair of scissors.
7. manufacture method as claimed in claim 6, it is characterised in that：Under vacuum carry out quenching and temper when
Between be 1~2 hour, repeat 2~3 times.
8. manufacture method as claimed in claim 7, it is characterised in that：The model M390 of the powder steel, S290, S390,
One kind in ASP60 and HAP40.
9. manufacture method as claimed in claim 8, it is characterised in that：The part of counteredge uses copper in the fixture
Make.
10. manufacture method as claimed in claim 9, it is characterised in that：, should be in cutter hub and blade when carrying out laser welding
The ni base alloy coating of 5~10 μ m-thicks is plated on solder side, speed of welding was controlled at 25~35mm/ seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400755.4A CN107127535A (en) | 2017-05-31 | 2017-05-31 | A kind of bimetallic cutter and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710400755.4A CN107127535A (en) | 2017-05-31 | 2017-05-31 | A kind of bimetallic cutter and its manufacture method |
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| Publication Number | Publication Date |
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| CN107127535A true CN107127535A (en) | 2017-09-05 |
Family
ID=59735100
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710400755.4A Pending CN107127535A (en) | 2017-05-31 | 2017-05-31 | A kind of bimetallic cutter and its manufacture method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723447A (en) * | 2017-10-12 | 2018-02-23 | 徐州东鹏工具制造有限公司 | A kind of stainless steel blade Technology for Heating Processing |
| WO2019136661A1 (en) * | 2018-01-11 | 2019-07-18 | 杭州巨星科技股份有限公司 | Cutting member and manufacturing method therefor |
| CN110076537A (en) * | 2019-04-29 | 2019-08-02 | 晋江特锐模具有限公司 | A kind of rotary cutter production method |
| CN111041420A (en) * | 2019-12-27 | 2020-04-21 | 采埃孚汽车科技(张家港)有限公司 | Broach tool and preparation method thereof |
| CN112605621A (en) * | 2020-11-19 | 2021-04-06 | 中钢集团邢台机械轧辊有限公司 | Method for manufacturing composite shear blade |
| CN113352353A (en) * | 2021-06-03 | 2021-09-07 | 湖南三泰新材料股份有限公司 | Bimetal composite cutter and manufacturing method thereof |
| CN113770361A (en) * | 2021-08-18 | 2021-12-10 | 北京科技大学 | Preparation method of high-performance blade of speed skating blade |
| CN115256060A (en) * | 2022-08-11 | 2022-11-01 | 宁蒗恒泰农业投资开发有限公司 | Production method of special grafting cutter for fruit trees |
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| CN2541139Y (en) * | 2002-05-19 | 2003-03-26 | 李积回 | Composite stainless steel kitchen knife |
| CN201158043Y (en) * | 2008-01-25 | 2008-12-03 | 重庆邓氏厨具制造有限公司 | Striking-forged kitchen knife with intermediate layer |
| CN102036794A (en) * | 2008-05-27 | 2011-04-27 | 兼房株式会社 | Flat cutting tool |
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| JP2001025585A (en) * | 1999-07-14 | 2001-01-30 | Kimiko Sueda | Diamond-containing blade material for sharp-edged tool, such as kitchen knife |
| CN2541139Y (en) * | 2002-05-19 | 2003-03-26 | 李积回 | Composite stainless steel kitchen knife |
| CN201158043Y (en) * | 2008-01-25 | 2008-12-03 | 重庆邓氏厨具制造有限公司 | Striking-forged kitchen knife with intermediate layer |
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| CN106142144A (en) * | 2016-06-30 | 2016-11-23 | 谢振华 | A kind of compound kitchen knife and assemble method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723447A (en) * | 2017-10-12 | 2018-02-23 | 徐州东鹏工具制造有限公司 | A kind of stainless steel blade Technology for Heating Processing |
| WO2019136661A1 (en) * | 2018-01-11 | 2019-07-18 | 杭州巨星科技股份有限公司 | Cutting member and manufacturing method therefor |
| CN110076537A (en) * | 2019-04-29 | 2019-08-02 | 晋江特锐模具有限公司 | A kind of rotary cutter production method |
| CN110076537B (en) * | 2019-04-29 | 2021-11-19 | 晋江特锐模具有限公司 | Production method of rotary cutter |
| CN111041420A (en) * | 2019-12-27 | 2020-04-21 | 采埃孚汽车科技(张家港)有限公司 | Broach tool and preparation method thereof |
| CN112605621A (en) * | 2020-11-19 | 2021-04-06 | 中钢集团邢台机械轧辊有限公司 | Method for manufacturing composite shear blade |
| CN113352353A (en) * | 2021-06-03 | 2021-09-07 | 湖南三泰新材料股份有限公司 | Bimetal composite cutter and manufacturing method thereof |
| CN113770361A (en) * | 2021-08-18 | 2021-12-10 | 北京科技大学 | Preparation method of high-performance blade of speed skating blade |
| CN115256060A (en) * | 2022-08-11 | 2022-11-01 | 宁蒗恒泰农业投资开发有限公司 | Production method of special grafting cutter for fruit trees |
| CN115256060B (en) * | 2022-08-11 | 2023-12-01 | 宁蒗恒泰农业投资开发有限公司 | Production method of grafting tool special for fruit trees |
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Application publication date: 20170905 |
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