CN208162762U - A kind of cutting part - Google Patents

A kind of cutting part Download PDF

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Publication number
CN208162762U
CN208162762U CN201820044443.4U CN201820044443U CN208162762U CN 208162762 U CN208162762 U CN 208162762U CN 201820044443 U CN201820044443 U CN 201820044443U CN 208162762 U CN208162762 U CN 208162762U
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CN
China
Prior art keywords
metal portion
cutting part
steel
blade
metal
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Expired - Fee Related
Application number
CN201820044443.4U
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Chinese (zh)
Inventor
王伟毅
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Hangzhou Great Star Industrial Co Ltd
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Hangzhou Great Star Industrial Co Ltd
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Priority to CN201820044443.4U priority Critical patent/CN208162762U/en
Application granted granted Critical
Publication of CN208162762U publication Critical patent/CN208162762U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of cutting part, cutting part includes matrix, blade and weld part;Matrix is made of the first metal portion, and the first metal portion has first side;For blade by the second metal portion and for the laminating formation of third metal portion of cutting edge, the second metal portion is high strength alloy steel, and has second side;Third metal portion is high-speed tool steel, and has third side;Weld part connects the first metal portion and the second metal portion, the cutting part of the utility model uses three metal structures, using lower-cost medium and high carbon steel or low-alloy steel as basis material, its cost applied to larger size panel saw when can be reduced, panel saw tooth tip has used the high speed steel materials such as M2, M42, M35, wearability is significantly got a promotion, and saw service life improves.

Description

A kind of cutting part
Technical field
The utility model relates to a kind of cutting part more particularly to a kind of cutting members formed by Metal Material Welding.
Background technique
Common bladed saw tip materials mostly use whole medium and high carbon steel or low-alloy steel, such as 65Mn, SK5,50# etc., but by It limits in material, is worn no resistance with the tooth tip of the bladed saw of the material as a whole.
If entire panel saw uses ultra-wide bimetallic composite steel band, width is in 90mm or more, because of bimetallic clad steel Band saw blade backing generally uses high strength alloy steel, and alloying element total content is more than 5.0%, and cost is excessively high, and the market competitiveness is not Greatly.
Also, using after ultra-wide bimetallic composite steel band, high-speed steel steel wire, such as M2, M42 etc., and as backing After the docking such as high strength alloy steel, such as D6A, X32 weld, heat treatment process later will be according to high-speed steel technique overall thermal at Reason, need to carry out high tempering, and it is low to will lead to saw bit matrix hardness, only HRC30 or so, intensity difference, and saw blade deformation is big and is not easy Control.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide one kind have both it is wear-resisting The cutting part of property, toughness and high rigidity.
The utility model provides a kind of cutting part,
Cutting part includes matrix, blade and weld part;
Matrix is made of the first metal portion, and the first metal portion is medium and high carbon steel or low-alloy steel, has first side;
For blade by the second metal portion and for the laminating formation of third metal portion of cutting edge, the second metal portion is high-strength alloy Steel, and there is second side;Third metal portion is high-speed tool steel, and has third side;
Weld part connects the first metal portion and the second metal portion.
Further, blade is the composite steel band of the laminating formation of third metal portion by the second metal portion and for cutting edge.
Further, the hardness of high-speed tool steel is 58-72HRC.
Further, the hardness of high strength alloy steel is 38-52HRC.
Further, the hardness of medium and high carbon steel or low-alloy steel is 38-52HRC.
Further, the phosphorus content of the second metal portion is 0.30-0.60%, and alloying element total content is 2.0-8.0%.
Further, alloying element includes any one or more in Cr, V, Mo, Ni, W, Ti, Si and Mn.
Further, high strength alloy steel includes any one or more in D6A, X32 and 50CrV.
Further, third metal portion is the high-speed tool steel that phosphorus content is not less than 0.70%.
Further, high-speed tool steel includes M2, M42 or M35.
Further, the hardness of medium and high carbon steel or low-alloy steel is 38-52HRC.
Further, the first metal portion includes 65Mn, SK5 and 50# steel.
Further, the width of third metal portion is 1.0-4.0mm.
Further, the width of the second metal portion is 2.0-30.0mm.
Further, the width of the first metal portion is in 30.0-100.0mm.
The utility model also provides a kind of panel saw, comprising cutting part as described above.
The utility model also provides a kind of manufacturing method of cutting part, and manufacturing method includes will be by the second metal portion and the The composite steel band of three metal portions composition is soldered to the idiosome that cutting part is formed on matrix, and welding process occurs in the second metal portion Between the first metal portion of matrix, weld part, then butt welding are formed after welding between the second metal portion and the first metal portion Socket part carries out lonneal processing, to eliminate the welding stress of weld part.
Further, the tempering temperature of lonneal processing is 180-450 DEG C, and soaking time is 60-240 minutes.
Further, after lonneal processing, the hardness of third metal portion, which reduces, is no more than 1.0HRC, the first metal portion It is reduced with the hardness of the second metal portion and is no more than 2.0HRC.
Further, it is welded using high energy beam current and welds the composite steel band being made of the second metal portion and third metal portion The idiosome of cutting part is formed on to matrix.
Further, high energy beam current welding includes laser welding, electron beam welding or ion-beam welding.
Further, the second metal portion is cryptocrystalline martensite and partially carbonized object tissue close to the structure of weld part.
Further, the first metal contains martensite, ferrite and carbide tissue close to the structure of weld part.
Further, the welding heat affected zone depth of the first metal portion and the second metal portion is no more than 3.0mm.
Further, using the pulsed laser welding of wavelength 1064nm, the movement velocity of welding gun is in 5~50mm/s.
Further, when being welded using the continuous laser for the wavelength 1070nm ± 10nm for supporting by the arm rare earth, the fortune of laser welding head Speed is moved in 5~50mm/s.
The utility model has the advantages that:
1. the cutting part of the utility model uses three metal structures, using lower-cost medium and high carbon steel or low-alloy steel As basis material, it is possible to reduce its be applied to larger size panel saw when cost, panel saw tooth tip used M2, M42, The high speed steel materials such as M35, wearability are significantly got a promotion, and saw service life improves.
2. the cutting part of the utility model can be using the mature bimetallic composite steel band commercially produced, bimetallic is multiple It is welded again after closing steel band heat treatment, has ensured saw blade and teeth portion hardness, so that tooth tip is obtained high-wearing feature, while having ensured saw The high tenacity of piece.
3. doing matrix using conventional saw blade, narrow bimetallic composite steel band does teeth portion material, and saw sexual valence is relatively high.
Detailed description of the invention
Fig. 1 is a kind of a kind of schematic diagram of cutting part provided by the utility model;
Fig. 2 is the partial sectional view of Fig. 1;
Fig. 3 is the partial enlargement diagram of Fig. 2;
Fig. 4 is a kind of process flow chart of the manufacturing method of cutting part provided by the utility model.
In figure, matrix 1, the first metal portion 11, blade 2, the second metal portion 21, third metal portion 22.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and referring to data.It should be understood that embodiment is intended merely to lift Example illustrates the present invention, rather than limits the range of invention in any way.
As shown in Figure 1-3, the utility model provides a kind of cutting part,
Cutting part includes matrix, blade and weld part;It uses three metal structures, i.e., by the metal of three kinds of different performances Material cladding is formed.
Matrix is made of the first metal portion, and the first metal portion is medium and high carbon steel or low-alloy steel, has first side;
For blade by the second metal portion and for the laminating formation of third metal portion of cutting edge, the second metal portion is high-strength alloy Steel, and there is second side;Third metal portion is high-speed tool steel, and has third side;
Weld part connects the first metal portion and the second metal portion.
The matrix of medium and high carbon steel or low-alloy steel as cutting part is selected, the most of backing for assuming responsibility for cutting part is used Material, is greatly reduced cutting part overall cost.
Select high strength alloy steel as the transition portion of welding, welding generation the first metal portion and the second metal portion it Between, lonneal is directlyed adopt after welding to eliminate the welding stress of the first metal portion and the second metal portion commissure, therefore this The structure of product, which realizes low-temperature treatment, can be realized the welding stress elimination of the first metal portion and the second metal portion, and obtain into This lower, cutting part that tool edge wear-proof is had excellent performance.
Wherein the hardness of high-speed tool steel is 58-72HRC, and phosphorus content is not less than 0.70% high-speed tool steel.At one In preferred embodiment, high-speed tool steel includes M2, M42, M35.
The hardness of high strength alloy steel is 38-52HRC.The phosphorus content of the high strength alloy steel of second metal portion is 0.30- 0.60%, and alloying element total content is 2.0-8.0%.Alloying element include but is not limited to Cr, V, Mo, Ni, W, Ti, Si and Mn.In a preferred embodiment, high strength alloy steel can select D6A, X32 and 50CrV.
The hardness of medium and high carbon steel or low-alloy steel is 38-52HRC, and the hardness of the first metal portion is 38-52HRC.At one In preferred embodiment, the first metal portion includes 65Mn, SK5 and 50#.Preferably, the width of the first metal portion is in 30.0- 100.0mm。
In one embodiment, the narrower width of blade, the specially width of third metal portion be 1.0-4.0mm, second The width of metal portion is 2.0-30.0mm.
In one embodiment, blade is the compound of the laminating formation of third metal portion by the second metal portion and for cutting edge Steel band.The composite steel band can select the mature clad steel band commercially produced.
In one embodiment, the utility model provides a kind of panel saw comprising cutting part described above, it is excellent Choosing, the width of the first metal portion of the panel saw is in 30.0-100.0mm.
As described in Figure 4, the utility model additionally provides a kind of manufacturing method of cutting part, and manufacturing method includes will be by the The composite steel band of two metal portions and third metal portion composition is soldered to the idiosome that cutting part is formed on matrix, and welding process occurs Between the second metal portion and the first metal portion as matrix, formed between the second metal portion and the first metal portion after welding Then weld part carries out lonneal processing to weld part, to eliminate the welding stress of weld part.
Welding procedure is specially:
It is welded using high energy beam current and the composite steel band being made of the second metal portion and third metal portion is soldered on matrix Form the idiosome of cutting part.After welding, the second metal portion contains cryptocrystalline martensite and part carbon close to the structure of weld part Compound tissue.First metal contains martensite, ferrite and carbide tissue close to the structure of weld part.First metal portion and The welding heat affected zone depth of second metal portion is no more than 3.0mm.Preferably, using the pulse laser welding of wavelength 1064nm It connects, the movement velocity of welding gun is in 5~50mm/s;Or when being welded using the continuous laser for the wavelength 1070nm ± 10nm for supporting by the arm rare earth, The movement velocity of laser welding head is in 5~50mm/s.
In one embodiment, using bladed saw saw blade as matrix.
In one embodiment, high energy beam current welding uses laser welding, electron beam welding, ion-beam welding.
Lonneal is handled:
The tempering temperature of lonneal processing is 180-450 DEG C, and soaking time is 60-240 minutes.
After lonneal processing, the hardness of third metal portion, which reduces, is no more than 1.0HRC, the first metal portion and the second gold medal The hardness in category portion, which reduces, is no more than 2.0HRC.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain Available technical solution is tested, it all should be within the scope of protection determined by the claims.

Claims (12)

1. a kind of cutting part, which is characterized in that
The cutting part includes matrix, blade and weld part;
Described matrix is made of the first metal portion, and first metal portion is medium and high carbon steel or low-alloy steel, has first side;
For the blade by the second metal portion and for the laminating formation of third metal portion of cutting edge, second metal portion is high intensity Steel alloy, and there is second side;The third metal portion is high-speed tool steel, and has third side;
The weld part connects first metal portion and the second metal portion.
2. a kind of cutting part as described in claim 1, which is characterized in that the blade is by the second metal portion and to be used for sword The composite steel band of the laminating formation of third metal portion of mouth.
3. a kind of cutting part as described in claim 1, which is characterized in that the hardness of the high-speed tool steel is 58- 72HRC。
4. a kind of cutting part as described in claim 1, which is characterized in that the hardness of the high strength alloy steel is 38- 52HRC。
5. a kind of cutting part as described in claim 1, which is characterized in that the hardness of the medium and high carbon steel or low-alloy steel is 38-52HRC。
6. a kind of cutting part as described in claim 1, which is characterized in that the high strength alloy steel include D6A, X32 and Any one or more in 50CrV.
7. a kind of cutting part as described in claim 1, which is characterized in that the high-speed tool steel includes M2, M42 or M35.
8. a kind of cutting part as described in claim 1, which is characterized in that first metal portion include 65Mn, SK5 and 50# steel.
9. a kind of cutting part as described in claim 1, which is characterized in that the width of the third metal portion is 1.0- 4.0mm。
10. a kind of cutting part as described in claim 1, which is characterized in that the width of second metal portion is 2.0- 30.0mm。
11. a kind of cutting part as described in claim 1, which is characterized in that the width of first metal portion is in 30.0- 100.0mm。
12. a kind of panel saw, which is characterized in that the panel saw includes cutting part described in claim 1-11.
CN201820044443.4U 2018-01-11 2018-01-11 A kind of cutting part Expired - Fee Related CN208162762U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820044443.4U CN208162762U (en) 2018-01-11 2018-01-11 A kind of cutting part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820044443.4U CN208162762U (en) 2018-01-11 2018-01-11 A kind of cutting part

Publications (1)

Publication Number Publication Date
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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109465609A (en) * 2018-12-29 2019-03-15 无锡苏嘉法斯特汽车零配件有限公司 A kind of preparation method of automobile abnormal shape door anti-collision joist welded still pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109465609A (en) * 2018-12-29 2019-03-15 无锡苏嘉法斯特汽车零配件有限公司 A kind of preparation method of automobile abnormal shape door anti-collision joist welded still pipe

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Granted publication date: 20181130