CN108396112A - A kind of high intensity steel wire cutting device short route manufacturing method - Google Patents
A kind of high intensity steel wire cutting device short route manufacturing method Download PDFInfo
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- CN108396112A CN108396112A CN201810191766.0A CN201810191766A CN108396112A CN 108396112 A CN108396112 A CN 108396112A CN 201810191766 A CN201810191766 A CN 201810191766A CN 108396112 A CN108396112 A CN 108396112A
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- steel wire
- cutting device
- wire cutting
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- blade
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- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
-
- 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
-
- 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
- C21D2261/00—Machining or cutting being involved
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to a kind of high intensity steel wire cutting device short route manufacturing method, this method specific steps include：Steel wire cutting device is integrally heat-treated first with laser, then by steel wire cutting device pulling mouth, by adjusting laser output power, defocusing amount and sweep speed, quenching treatment is carried out to steel wire edge.The present invention can realize the in-situ control to steel wire cutting device institutional framework, and the hardness and wearability to make steel wire cutting device are improved, and realize the quick manufacture of the excellent steel wire cutting device of obdurability.
Description
Technical field
The present invention relates to a kind of preparation method of steel wire cutting device, especially a kind of high intensity steel wire cutting device short route manufacturing method,
Belong to laser surface modification field.
Background technology
Steel wire cutting device (also known as die-cutting rule) refers to being formed from steel, and there is the flaky material of row's mold cutting plate processed of sword on top, can be used to
The very wide material of cut coverage, such as cardboard, corrugated board, plastics, adhesive label, gasket.Wherein, cut common cardboard, watt
The packaging industry of corrugated paper board and molding paperboard is the key industry using steel wire cutting device.Steel wire cutting device performance requirement steel quality is equal
The hardness combination of even, blade and the knife edge is appropriate, specification is accurate, the knife edge it is quenched processing etc..Its knife edge hardness of good steel wire cutting device
Generally significantly higher then blade hardness is not only convenient for molding, but also provides the longer cross cutting service life in this way.The production process of existing steel wire cutting device
Include mainly：Metallurgical technology, hot rolling, annealing, cold rolling, quenching, slitting and knife spine planing operation, blade planing or grinding,
Blade quenching processing, forming processes.Must select appropriate iron and steel component first, so as to hardening process in can obtain hardness with
The good combination of toughness.In quenching technical link, lead patenting is mainly used, it is control blade hardness, structure, decarburization, curved
Song rebound, surface and flatness, blade quenching technical generally by cutting edge carry out local high-frequency quenching control edge hardness,
The depth of quenching and bendability.Steel band processing uses lead patenting and steel strip surface decarbonization method, makes the quenched gold of steel band
Phase constitution is that lower bainite has higher moulding, not easy to break, blade hardness HRC35 when bending, bending hexagonal angle are not split.
It is not broken that HRC40 is bent 100 ° of angles；By carrying out local high-frequency quenching to steel wire edge, (high-frequency quenching frequency is 25 megahertzs
Hereby), edge hardness is made to reach HRC56, quench-hardened case concentrates on the surface of cutting edge, and the service life of steel wire cutting device is made to greatly improve, domestic steel
Line cutter die cutting number reaches 10,000 times, and external high-quality steel wire cutter die cutting number can reach 40,000 times.
Main problem existing for existing technique steel wire cutting device
(1) steel wire cutting device is bent 180 ° of angles and produces fracture, and country's steel wire cutting device largely uses T50 steel rollings Cheng Gang at present
Band, T50 are common carbon tool steels, and quenching distortion tearing tendency is big, and the carbide after quenching and tempering belongs to carburizing build,
Although hardness, up to 40HRC, wearability is insufficient；
(2) bend by pressure at steel wire cutting device blade, the cutter that has by avalanche when judder or impact one piece (i.e. tipping),
The small-sized cutlery having can integrally fracture.
Currently, for the stiffened technology of steel wire edge, most production commercial cities uses high-frequency quenching, quenching only office
It is limited to workpiece surface, and keeps basic stitch form inside blade, this is because alternating magnetic field produces same frequency in workpiece
Induced current is unevenly distributed workpiece, on surface strong, and internal very weak, to center portion close to 0, workpiece surface is fast
Speed heating, surface temperature rises to 800-1000 DEG C in seconds, and center portion temperature increases very little.Due to this work original
Reason, the blade depth of quenching is shallow, and hardness is low, easy to wear；At the same time, cutting edge quenching is uneven, cutting edge be easy by judder or
Tipping phenomenon occurs when impact, part cutting edge finds ruckbildung in use.
Laser quenching is that material surface is heated to transformation temperature or more using laser, as material itself cools down, austenite
It is changed into martensite, to make the quenching technology of material surface hardened.The power density of laser quenching is high, and cooling velocity is fast, no
It needs water or oil etc. to cool down medium, is cleaning, quick quenching technical.The depth of laser quench-hardened case is generally in 0.3~2.0mm models
Between enclosing.Compared with impewdance matching, flame hardening, carburizing quenching process, laser quenching quench-hardened case is uniform, high (the general ratio of hardness
The high 1-3HRC of impewdance matching), workpiece deformation is small, and heating layer depth and heating track are easy to control, it is easy to accomplish automation.For
The stringent situation of some steel wire cutting device requirements, can be used laser melting quenching technology, be heated substrate surface using laser beam
To more than fusion temperature, fusing layer surface is made to be quickly cooled down the technique mistake of simultaneously solidification and crystallization due to heat conduction cooling inside base material
Journey.The consolidation quenching structure of acquisition is very fine and close, and fusing-solidification layer, Hardened Case, heat are followed successively by along the tissue of depth direction
The zone of influence and base material.Laser melting layer is deeper than the hardening depth of Laser Hardened Layer, hardness is high, and wearability is also more preferable.
Invention content
The purpose of the present invention is to provide a kind of method of quick preparation high intensity steel wire cutting device, with more low energy consumption and higher
Production efficiency prepares the steel wire cutting device with excellent in strength.
Realize that the object of the invention technical solution is：By adjusting the output power of laser, defocusing amount and sweep speed
To carry out laser heat treatment to the blade and blade of steel wire cutting device, to realize the control to steel wire cutting device institutional framework and then improve steel
Line knife intensity and wearability.
This approach includes the following steps：
(1) pre-process, use wire cutting machine that steel band is cut into the steel bar of 200 × 24 × 0.72mm first, using acetone and
Alcohol carries out cleaning oil removing to material surface；
(2) steel wire cutting device blade is heat-treated using laser-processing system (YLR-200-AC types), by adjusting laser
Output power (150-200) W, sweep speed (200-300) mm/min, defocusing amount (80-100) mm are realized to blade knot of tissue
The control of structure；
(3) steel wire edge is heat-treated using laser-processing system (YLR-200-AC types), about because of cutting edge size
0.6mm selectes 50mm defocusing amounts, by adjusting laser output power (100-200) W and sweep speed by previous experiments
(1200-1600) mm/min realizes the control to cutting edge institutional framework, to make edge hardness and wearability be improved.
Further, its ingredient of high intensity steel wire cutting device is as follows, the chemical composition of steel wire cutting device, by mass fraction %：
1 high intensity steel wire cutting device its ingredient of table
Further, hanging quenching treatment is used in heat treatment process, is cooled down in air.
Compared with prior art, the present invention its remarkable advantage is：1, it can quickly prepare with high rigidity, wear-resistant
Steel wire cutting device and low energy consumption, equipment is simple, environmental-friendly.2, standard metallographic specimen is made in the material handled by the present invention,
Polishing, polishing, analyze steel wire cutting device institutional framework using light microscope after corrosion.
Description of the drawings
Fig. 1 steel wire cutting device original structures (a)；Blade tissue (b) and blade tissue (c) schematic diagram after laser quenching；
Fig. 2 is hardness test dot method figure；
Fig. 3 is commercially available steel wire cutting device and laser heat treatment steel wire cutting device blade material hardness testing comparison diagram；
Fig. 4 is hardness test dot method schematic diagram；
Fig. 5 laser quenchings edge hardness and commercially available standard specimen A, B comparison diagram.
Specific implementation mode
It is further elaborated below in conjunction with the accompanying drawings：
The present invention controls the knot of tissue of steel wire cutting device by adjusting laser technical parameters based on the concept of laser processing
Structure, hardness and wearability to make steel wire cutting device are improved.It is as follows：
1. pair cold-rolled steel band uses alcohol washes；
2. the steel band cleaned is placed on laser work platform, adjustment laser output power, defocusing amount and scanning speed
Degree, quenches steel strip surface；
3. then carrying out blade planing to steel band with pulling mouth machine, adjustment laser output power, defocusing amount and sweep speed are right
Blade is quenched.
Wherein to the technological parameter of blade laser heat treatment such as table 2, to the process parameter table 3 of blade laser quenching.
In the following Examples and Comparative Examples, the effect of optimization of steel wire cutting device institutional framework is indicated with Rockwell hardness (HRC),
Blade hardness illustrates that organizational structure optimization effect is better within the scope of HRC33-40, the bigger hardness for illustrating blade of edge hardness value
It is better with wearability.
Embodiment 1
Steel wire cutting device blade material is heat-treated using laser-processing system (YLR-200-AC types), sweep speed is chosen
(200-300mm/min), fixed laser power 150w, defocusing amount 90mm later carry out the blade material after laser heat treatment
Hardness test, specific test result are as shown in table 2
The different laser scanning speeds of table 2 handle blade testing of materials result
Embodiment 2
Steel wire cutting device blade material is heat-treated using laser-processing system (YLR-200-AC types), sweep speed is chosen
250mm/min, laser power choose (150-200) w, defocusing amount 90mm, are carried out later to the blade material after laser heat treatment
Hardness test, specific test result are as shown in table 3
The different laser powers of table 3 handle blade testing of materials result
Embodiment 3
Steel wire cutting device blade material is heat-treated using laser-processing system (YLR-200-AC types), chooses sweep speed
250mm/min, laser power 150w, defocusing amount (80-100) mm carry out hardness to the blade material after laser heat treatment later
Test, specific test result are as shown in table 4
The different defocusing amounts of table 4 handle blade testing of materials result
Embodiment 4
Quenching treatment is carried out to steel wire cutting device cutting edge material using laser-processing system (YLR-200-AC types), chooses scanning speed
(1200-1600) mm/min, laser power 150w, defocusing amount 50mm are spent, the cutting edge material after laser quenching is carried out later hard
Degree test, specific test result are as shown in table 5
The different laser scanning speeds of table 5 handle cutting edge material test result
Embodiment 5
Quenching treatment is carried out to steel wire cutting device cutting edge material using laser-processing system (YLR-200-AC types), chooses scanning speed
1400mm/min, laser power (100-200) w, defocusing amount 50mm are spent, hardness is carried out to the cutting edge material after laser quenching later
Test, specific test result are as shown in table 6
The different laser powers of table 6 handle cutting edge material test result
In order to compare laser processing and the difference on commercially available steel wire cutting device blade material property, commercially available steel wire cutting device blade material is taken
Material, carries out 50 μm away from lower surface of hardness test using mode shown in Fig. 2 and makes a call to first point, make a call to a point every 100 μm later.Its
Test result and power 150w, blade material hardness obtained by the laser heat treatment of sweep speed 250mm/min, defocusing amount 90mm into
Row comparison is as shown in figure 3, therefrom can be found that the more commercially available steel wire cutting device blade hardness of blade material obtained by laser heat treatment from following table
Face is more uniform to upper surface and hardness is promoted.
Comparative example 2
In order to compare laser processing and the difference in commercially available steel wire cutting device cutting edge material performance, commercially available steel wire cutting device blade material is taken
Material, Fig. 4 is hardness test dot method, is tested by blade cutting edge, tackles two-winged shots and take every 100 μm along direction as shown in the figure
Mean value obtains the difference of cutting edge material hardness to compare commercially available steel wire cutting device standard specimen and laser quenching.Fig. 5 is laser power 150w, is swept
Retouch speed 1400mm/min, the steel wire obtained under defocusing amount 50mm parameter combinations to blade and commercially available steel wire cutting device standard specimen A and B blades
Hardness balance schemes, it can be seen that high-frequency quenching standard specimen declines comparatively fast from cutting edge to centre hardness, and what laser quenching obtained
Cutting edge material, it is more uniform from cutting edge to centre hardness, in addition to the last one point, in 55HRC or more, meet market to steel wire
Knife cutting edge material hardness requirement has a distinct increment compared to market steel wire cutting device on sale.
Attached drawing 1 (a) show raw material metallographic structure, and raw material tissue is mainly the ferrite of cold rolling state；
Attached drawing 1 (b) show the blade metallographic structure by laser heat treatment, and raw material are organized to turn after laser quenching
Become acicular martensite and retained austenite line and staff control；
Attached drawing 1 (c) show the blade metallographic structure by laser quenching, predominantly acicular martensitic structure.
Claims (3)
1. a kind of high intensity steel wire cutting device short route manufacturing method, which is characterized in that include the following steps：
(1) it pre-processes, uses wire cutting machine that steel band is cut into the steel bar of 200 × 24 × 0.72mm first, use acetone and alcohol
Cleaning oil removing is carried out to material surface；
(2) steel wire cutting device blade is heat-treated using laser-processing system, by adjusting laser output power 150-200W, is swept
Speed 200-300mm/min, defocusing amount 80-100mm are retouched, realizes the control to blade institutional framework；
(3) steel wire edge is heat-treated using laser-processing system, because of cutting edge size about 0.6mm, by previous experiments,
Selected 50mm defocusing amounts realize counter blade by adjusting laser output power 100-200W and sweep speed 1200-1600mm/min
The control of mouth institutional framework, to make edge hardness and wearability be improved.
2. high intensity steel wire cutting device short route manufacturing method according to claim 1, which is characterized in that the high strength steel
Its ingredient of line knife is as follows, the chemical composition of steel wire cutting device, by mass fraction %：
3. high intensity steel wire cutting device short route manufacturing method according to claim 1, which is characterized in that adopted in heat treatment process
With hanging quenching treatment, cool down in air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810191766.0A CN108396112A (en) | 2018-03-08 | 2018-03-08 | A kind of high intensity steel wire cutting device short route manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810191766.0A CN108396112A (en) | 2018-03-08 | 2018-03-08 | A kind of high intensity steel wire cutting device short route manufacturing method |
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| CN201810191766.0A Pending CN108396112A (en) | 2018-03-08 | 2018-03-08 | A kind of high intensity steel wire cutting device short route manufacturing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666779A (en) * | 2018-12-06 | 2019-04-23 | 南京理工大学 | A kind of cutting edge martensite strengthening medical operation scissors and production method |
Citations (5)
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|---|---|---|---|---|
| CN1062003A (en) * | 1991-10-21 | 1992-06-17 | 上海工程技术大学 | The heat treatment of medium carbon steel cutter |
| CN1366084A (en) * | 2001-12-07 | 2002-08-28 | 徐路 | Process for quenching cutting edge of steel wire cutter |
| DE102011100735A1 (en) * | 2011-05-06 | 2012-11-08 | Faurecia Autositze Gmbh | Gear wheel, useful for seat adjustable mechanism, comprises gear portion having teeth, where wheel is formed of sheet steel and teeth exhibit different surface finish in regions loaded or loadable on rolling contact than in other regions |
| US20160157423A1 (en) * | 2012-03-06 | 2016-06-09 | Kondex Corporation | Laser clad cutting edge for agricultural cutting components |
| CN106963472A (en) * | 2017-03-27 | 2017-07-21 | 上海理工大学 | The targeting knife optimized using laser surface texture |
-
2018
- 2018-03-08 CN CN201810191766.0A patent/CN108396112A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062003A (en) * | 1991-10-21 | 1992-06-17 | 上海工程技术大学 | The heat treatment of medium carbon steel cutter |
| CN1366084A (en) * | 2001-12-07 | 2002-08-28 | 徐路 | Process for quenching cutting edge of steel wire cutter |
| DE102011100735A1 (en) * | 2011-05-06 | 2012-11-08 | Faurecia Autositze Gmbh | Gear wheel, useful for seat adjustable mechanism, comprises gear portion having teeth, where wheel is formed of sheet steel and teeth exhibit different surface finish in regions loaded or loadable on rolling contact than in other regions |
| US20160157423A1 (en) * | 2012-03-06 | 2016-06-09 | Kondex Corporation | Laser clad cutting edge for agricultural cutting components |
| CN106963472A (en) * | 2017-03-27 | 2017-07-21 | 上海理工大学 | The targeting knife optimized using laser surface texture |
Non-Patent Citations (1)
| Title |
|---|
| 罗启富等: "45 钢刀模带刀的激光", 《江苏工学院学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666779A (en) * | 2018-12-06 | 2019-04-23 | 南京理工大学 | A kind of cutting edge martensite strengthening medical operation scissors and production method |
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Application publication date: 20180814 |