CN104647404A - Tool and manufacture method thereof - Google Patents
Tool and manufacture method thereof Download PDFInfo
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- CN104647404A CN104647404A CN201510078503.5A CN201510078503A CN104647404A CN 104647404 A CN104647404 A CN 104647404A CN 201510078503 A CN201510078503 A CN 201510078503A CN 104647404 A CN104647404 A CN 104647404A
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Abstract
The invention provides a tool and a manufacture method thereof. The tool comprises a base body, a blade inclined face and a cladding alloy hardened layer, wherein one side of the base body is a blade side; the cladding alloy hardened layer is arranged at the first side of the base body along the blade side; the blade inclined face is arranged at the second side of the base body along the blade side; the blade inclined face and the cladding alloy hardened layer are intersected to form a blade edge. According to the tool, the problem that a tool in the prior art has short service life can be solved.
Description
Technical field
The present invention relates to cutter field, in particular to the manufacture method of a kind of cutter and this cutter.
Background technology
Cutter is indispensable instrument in all trades and professions and people's lives, as various cutters such as ripper cutter, process hides tailoring cutter, military cutter, Kitchen knife, table knife, fruit knives.
In prior art, cutter adopts Technology for Heating Processing to make, the cutter of prior art exist edge hardness not high, be not durable, need often to whet a knife and service life shorter problem.
Summary of the invention
Main purpose of the present invention is the manufacture method providing a kind of cutter and this cutter, to solve shorter problem cutter life of the prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of cutter, cutter comprises: matrix, and a limit of matrix is sword limit; The alloy hardening layer of cladding, is arranged on the first side of matrix along sword limit; Edge bevel, is arranged on the second side of matrix along sword limit, edge bevel is crossing with the alloy hardening layer of cladding forms cutting edge.
Further, the alloy hardening layer of cladding adopts ferrous alloy and ceramic material cladding to make.
Further, ceramic material comprises one or more in tungsten carbide, titanium carbide, carborundum boron carbide material.
Further, the alloy hardening layer of cladding covers matrix and its cover width is more than or equal to the width of edge bevel.
Further, the position at edge bevel place from outward appearance to inner essence comprises alloy hardening layer, hardened layer and matrix successively, and wherein, alloy hardening layer and hardened layer form the alloy hardening layer of cladding.
Further, the width H of the alloy hardening layer of cladding is for being more than or equal to 9mm and being less than or equal to 10mm, and the thickness of alloy hardening layer is for being more than or equal to 0.08mm and being less than or equal to 0.3mm.
Further, the hardness of alloy hardening layer is greater than the hardness of hardened layer, and the hardness of hardened layer is greater than the hardness of matrix.
According to a further aspect in the invention, provide a kind of manufacture method of cutter, cutter comprises the alloy hardening layer of matrix, edge bevel and cladding, a limit of matrix is sword limit, the alloy hardening layer of cladding is arranged on the first side of matrix along sword limit, edge bevel is arranged on the second side of matrix along sword limit, and edge bevel is crossing with the alloy hardening layer of cladding forms cutting edge, wherein, manufacture method comprises the following steps: the method for S1, employing laser melting coating forms the alloy hardening layer of cladding; S2, one side is carried out to cutter put the first edge on a knife or a pair of scissors to form edge bevel.
Further, laser cladding of material is the composite powder of ferrous alloy and ceramic material composition, and step S1 is further comprising the steps of: S11, maintenance melt temperature are more than or equal to 1150 DEG C and are less than or equal to 1250 DEG C.
Further, ceramic material comprises one or more in tungsten carbide, titanium carbide, carborundum, boron carbide material.
Further, laser cladding of material meets following condition: the hardness of laser cladding of material is for being more than or equal to HV713 and being less than or equal to HV1037; The powder size of laser cladding of material is for being more than or equal to 60 orders and being less than or equal to 150 orders.
Apply technical scheme of the present invention, cutter comprises the alloy hardening layer of matrix, edge bevel and cladding, a limit of matrix is sword limit, the alloy hardening layer of cladding is arranged on the first side of matrix along sword limit, edge bevel is arranged on the second side of matrix along sword limit, edge bevel is crossing with the alloy hardening layer of cladding forms cutting edge.In aforesaid way, edge bevel is arranged on the side that the alloy hardening layer of cladding is not set of matrix, the wearing and tearing of the alloy hardening layer of cladding can be avoided, after cutter uses rust simultaneously, what whet a knife polishing is the alloy hardening layer segment of matrix surface instead of cladding, and therefore this cutter easily grinds and more durable.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the main TV structure schematic diagram of the embodiment of cutting tool according to the present invention;
Fig. 2 shows the structural representation in another direction of the embodiment of cutting tool according to the present invention;
Fig. 3 shows the perspective view of the embodiment of cutting tool according to the present invention; And
Fig. 4 shows the C place structure for amplifying schematic diagram of Fig. 3.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
1, matrix; 2, the alloy hardening layer of cladding; 21, alloy hardening layer; 22, hardened layer; 3, edge bevel; 4, grip part.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
In the present invention and embodiments of the invention, A face refers to the one side that cutter arranges the alloy hardening layer 2 of cladding, and B face refers to the one side that cutter arranges edge bevel 3.The hardness of the alloy hardening layer 2 of cladding is greater than the hardness of matrix 1.
As depicted in figs. 1 and 2, the invention provides a kind of cutter.Cutter comprises matrix 1, the alloy hardening layer 2 of cladding and edge bevel 3.A limit of matrix 1 is sword limit, and the alloy hardening layer 2 of cladding is arranged on the first side of matrix 1 along sword limit; Edge bevel 3 is arranged on the second side of matrix 1 along sword limit, edge bevel 3 is crossing with the alloy hardening layer of cladding 2 forms cutting edge.
Above-mentionedly to arrange, edge bevel 3 is arranged on the side that the alloy hardening layer 2 of cladding is not set of matrix 1, the wearing and tearing of the alloy hardening layer 2 of cladding can be avoided, after cutter uses rust simultaneously, what whet a knife polishing is matrix 1 surface instead of cladding alloy hardening layer 2 part, and therefore this cutter easily grinds and more durable.
Further, the alloy hardening layer 2 of cladding can be protected better in later stage sharpening process, make cutter more durable.
In the embodiment of the present invention, the alloy hardening layer 2 of cladding adopts ferrous alloy and ceramic material cladding to make.
By above-mentioned setting, hardness and wearability that the alloy hardening layer 2 of cladding can improve cutter are set along sword limit in the side of matrix 1.
Certainly, in the alternate embodiment that the present invention does not provide, other special laser cladding of material can also be adopted as required to form the alloy hardening layer 2 of above-mentioned cladding.
In the present invention and embodiments of the invention, owing to have employed the alloy hardening layer 2 of cladding, the combination that the alloy hardening layer of cladding 2 can be good with matrix 1, therefore, not only makes sharp, durable but also cladding alloy hardening layer 2 flawless of cutting edge, hardness high.
In the present invention and embodiments of the invention, ferrous alloy material has higher hardness, good wearability and meet cooker sanitary standard; On the other hand, because matrix is steel, adopt ferrous alloy can increase the conjugation of laser cladding of material and matrix, there will not be the situation that the alloy hardening layer 2 of cladding comes off.
In the embodiment of the present invention, ceramic material comprise in tungsten carbide, titanium carbide, carborundum, boron carbide material one or more.
By above-mentioned setting, add in the materials such as tungsten carbide, titanium carbide, carborundum, boron carbide one or more, improve hardness and anti-corrosion because tungsten carbide can improve wear-resisting and hardness, boron carbide, therefore can improve the serviceability of cutter.
As shown in Figure 3 and Figure 4, in the embodiment of the present invention, due to the heat affecting of laser scanning, from the cross section of edge bevel 3, Metallographic Analysis shows, the position at edge bevel 3 place from outward appearance to inner essence comprises alloy hardening layer 21, hardened layer 22 and matrix 1 successively, and wherein, alloy hardening layer 21 and hardened layer 22 form the alloy hardening layer 2 of cladding.
Wherein, alloy hardening layer 21 has hard high-wearing feature, can increase substantially cutter serviceability; Hardened layer 22 also has higher hardness due to grain refinement and becomes gradient to distribute, and from outward appearance to inner essence hardness reduces; Hardened layer 22 is lower due to the part hardness near alloy hardening layer 21, alloy hardening layer 21 therefore can better be made to combine, prevent alloy hardening layer 21 from ftractureing in grinding process process.
In the embodiment of the present invention, particularly, the position hardness at edge bevel 3 place order is from high to low: alloy hardening layer 21, hardened layer 22 and matrix 1.Namely the hardness of matrix 1 is less than the hardness of hardened layer 22, and the hardness of hardened layer 22 is less than the hardness of alloy hardening layer.
As shown in Figure 1, in the embodiment of the present invention, the width H of the alloy hardening layer 2 of cladding is for being more than or equal to 9mm and being less than or equal to 10mm, and the thickness of alloy hardening layer 21 is for being more than or equal to 0.08mm and being less than or equal to 0.3mm.
By above-mentioned setting, not only cutting edge is sharp after polishing for cutter, durability is comparatively strong but also larger distortion not easily occurs cutter in the process forming the alloy hardening layer of cladding 2, and the satisfaction of client is higher.
In the embodiment of the present invention, the alloy hardening layer 2 of cladding covers matrix 1 and its cover width equals the width of edge bevel 3.
Above-mentionedly to arrange, on the one hand, the demand of cutter hardness and wearability can be met, can production cost be reduced on the other hand.
Certainly, in alternative embodiments of the present invention, as required alloy hardening for cladding layer 2 can also be covered matrix 1 and its cover width is greater than the width of edge bevel 3.
As shown in Figure 1, in the embodiment of the present invention, cutter also comprises grip part 4.Grip part 4 is connected with matrix 1, is convenient to grip cutter by arranging grip part 4.
Present invention also offers a kind of manufacture method of cutter, cutter comprises the alloy hardening layer 2 of matrix 1, edge bevel 3 and cladding, a limit of matrix 1 is sword limit, the alloy hardening layer 2 of cladding is arranged on the first side of matrix 1 along sword limit, edge bevel 3 is arranged on the second side of matrix 1 along sword limit, edge bevel 3 is crossing with the alloy hardening layer of cladding 2 forms blade, and wherein, manufacture method comprises the following steps:
The method of S1, employing laser melting coating forms the alloy hardening layer 2 of cladding;
S2, one side is carried out to cutter put the first edge on a knife or a pair of scissors to form edge bevel 3.
In embodiments of the invention, one side alloying process and one side is adopted to put the first edge on a knife or a pair of scissors mode.Put the first edge on a knife or a pair of scissors in the one side not arranging the alloy hardening layer 2 of cladding, avoid the alloy hardening layer 2 of cladding to wear and tear, after cutter uses rust simultaneously, that whets a knife and polish is the matrix 1 of non-Laser Cladding Treatment and can not polishes off cladding alloy hardening layer 2 part, cutter is easily ground, Reusability, more lastingly durable.
In the embodiment of the present invention, laser cladding of material is the composite powder of ferrous alloy and ceramic material composition, and step S1 is further comprising the steps of:
S11, maintenance melt temperature are more than or equal to 1150 DEG C and are less than or equal to 1250 DEG C.
Above-mentionedly arrange, the cladding alloy hardening layer 2 adopting above-mentioned composite powder and temperature cladding to be formed does not have slight crack, can meet requirement for anticorrosion; On the other hand, the adhesion of composite powder and matrix is better, not easily comes off, thus makes cutter more durable.
In the embodiment of the present invention, laser cladding of material meets following condition:
The hardness of laser cladding of material is for being more than or equal to HV713 and being less than or equal to HV1037; The powder size of laser cladding of material is for being more than or equal to 60 orders and being less than or equal to 150 orders.
By above-mentioned setting, utilize the method for laser melting coating to be formed in the process of cladding alloy hardening layer 2, the adhesion of laser cladding of material and matrix 1 comparatively by force, thus improves the hardness of cutter, wearability and sharpness.Laser cladding of material and matrix 1 form metallurgical binding, therefore adhesion is very strong, owing to have employed the alloy material of high abrasion high rigidity, and put the first edge on a knife or a pair of scissors at the opposite side (i.e. the side not arranging the alloy hardening layer 2 of cladding of cutter) of non-alloyed layer, thus improve sharpness and the durability of cutter.
Below with reference to specific embodiment, further illustrate beneficial effect of the present invention.
First, the sharpness numerical value of test tool and durability numerical value.Tested cutting edge roundness is upwards horizontally fixed on cutter holder, by additional weight, cutting medium is pressed on blade with the pressure of 50N.Cutting medium keeps static, and by motor-driven knife fixture, carry its tools moves back and forth with the cutting speed of 50mm/s and cuts cutting medium, and cutting stroke is 40mm, cuts 30 weeks back and forth altogether.Draw by sensor the vertical height that each cutting stroke cutting medium falls, machine statistics draws test data as calculated.Front 3 all depth of cut sums of cutting are the sharp angle value of cutter, and 30 all depth of cut sums of cutting are tool life value.
First carry out sharpness and the test of durability numerical value to the cutter of prior art, concrete test result is in table 1.In embodiments of the invention one, the cutter with different-alloy thin hardened layer choosing embodiment one is tested the sharpness of cutter and durability, and concrete test result is in table 2.
Table 1
Can draw according to table 1, the sharpness of the cutter of prior art is 103.3mm, and durability is 373.7mm.
Table 2
According to shown in table 2, in embodiments of the invention one, adopt the mixed-powder of ferrous alloy, tungsten carbide and boron carbide as laser cladding of material, utilize the method for laser melting coating to form the alloy hardening layer 2 of cladding.Be 103.3mm with the sharpness not arranging the cutter of the alloy hardening layer 2 of cladding of prior art, durability numerical value is that 373.7mm compares, when alloy hardening layer thickness is more than or equal to 0.08mm and is less than 0.3mm, along with the increase of alloy hardening layer 21 thickness, sharpness and the durability numerical value of cutter are all higher, namely the cutter of the embodiment of the present invention one is sharper, and wear life is also longer.
And when alloy hardening layer 21 thickness is less than 0.08mm, when being such as 0.07mm, tool life numerical value is 450mm, and wear life is longer but sharpness is poor; When alloy hardening layer 21 thickness is greater than 0.3mm, easily there is obvious distortion in cutter, affects following process and use.
Above-mentionedly to arrange, to adopt tungsten carbide and boron carbide two kinds of composite materials, because laser cladding of material and matrix are under the effect of laser high temperature, fusing, heavily solidifying, define good metallurgical state to combine, therefore adhesion is very strong, there will not be situation about coming off.In the test of obtained cutter, alloy hardening layer 21 can reach the hardness of 1100HV.Further, owing to have employed the mode of putting the first edge on a knife or a pair of scissors at cladding alloy hardening layer 2 offside, well protect the alloy hardening layer 2 of cladding not to be worn, because alloy hardening layer compactness is good, hardness is high, so keen edge degree test value reaches 168mm, be far longer than the sharpness numerical value 103.3mm of prior art cutter; In durability test, because laser cladding of material durability improves about 2 times than conventional stainless steel, so durability cutting value is up to 800-900mm.
In the present invention, also have chosen some and have same alloy thin hardened layer, the cutter that laser cladding of material comprises ferrous alloy and one or more ceramic materials has carried out sharpness and durability test, and concrete test result is in table 3.
Table 3
Can draw according to table 3, when alloy hardening layer thickness is identical, the composite powder of the composition of one or more ceramic materials in ferrous alloy and tungsten carbide, titanium carbide, carborundum, boron carbide is adopted all to be greater than the sharpness numerical value (103.3mm) of prior art cutter as the sharpness numerical value of the cutter of laser cladding of material manufacture, durability numerical value is also far longer than prior art cutting wear numerical value (373.7mm), and sharpness and the durability of the cutter adopting the manufacture method of the application to manufacture are all higher.
From above description, can find out, the above embodiments of the present invention achieve following technique effect: cutter comprises matrix, the alloy hardening layer of cladding and edge bevel, and a limit of matrix is sword limit, and the alloy hardening layer of cladding is arranged on the first side of matrix along sword limit; Edge bevel is arranged on the second side of matrix along sword limit, edge bevel is crossing with the alloy hardening layer of cladding forms cutting edge, above-mentionedly to arrange, edge bevel is arranged on the side that the alloy hardening layer of cladding is not set of matrix, the wearing and tearing of the alloy hardening layer of cladding can be avoided, after simultaneously cutter uses rust, what whet a knife polishing is the alloy hardening layer segment of matrix surface instead of cladding, and therefore this cutter easily grinds and more durable;
Further, the method of laser melting coating is utilized to be formed in the process of the alloy hardening layer of cladding, the adhesion of laser cladding of material and matrix is stronger, thus improve the hardness of cutter, wearability and sharpness, laser cladding of material and matrix form metallurgical binding, therefore adhesion is very strong, owing to have employed the alloy material of high abrasion high rigidity, and put the first edge on a knife or a pair of scissors at the opposite side (i.e. the side not arranging the alloy hardening layer of cladding of cutter) of non-alloyed layer, thus improve sharpness and the durability of cutter.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a cutter, is characterized in that, described cutter comprises:
Matrix (1), a limit of described matrix (1) is sword limit;
The alloy hardening layer of cladding (2), is arranged on the first side of described matrix (1) along described sword limit;
Edge bevel (3), is arranged on the second side of described matrix (1) along described sword limit, described edge bevel (3) is crossing with the alloy hardening layer of described cladding (2) forms cutting edge.
2. cutter according to claim 1, is characterized in that, the alloy hardening layer of described cladding (2) adopts ferrous alloy and ceramic material cladding to make.
3. cutter according to claim 2, is characterized in that, described ceramic material comprise in tungsten carbide, titanium carbide, carborundum boron carbide material one or more.
4. cutter according to claim 1, is characterized in that, the alloy hardening layer of described cladding (2) covers described matrix (1) and its cover width is more than or equal to the width of described edge bevel (3).
5. cutter according to any one of claim 1 to 4, it is characterized in that, the position at described edge bevel (3) place from outward appearance to inner essence comprises alloy hardening layer (21), hardened layer (22) and described matrix (1) successively, wherein, described alloy hardening layer (21) and described hardened layer (22) form the alloy hardening layer of described cladding (2).
6. cutter according to claim 5, it is characterized in that, the width H of the alloy hardening layer of described cladding (2) is for being more than or equal to 9mm and being less than or equal to 10mm, and the thickness of described alloy hardening layer (21) is for being more than or equal to 0.08mm and being less than or equal to 0.3mm.
7. cutter according to claim 5, it is characterized in that, the hardness of described alloy hardening layer (21) is greater than the hardness of described hardened layer (22), and the hardness of described hardened layer (22) is greater than the hardness of described matrix (1).
8. the manufacture method of a cutter, it is characterized in that, described cutter comprises matrix (1), edge bevel (3) and the alloy hardening layer of cladding (2), a limit of described matrix (1) is sword limit, the alloy hardening layer of cladding (2) is arranged on the first side of described matrix (1) along described sword limit, edge bevel (3) is arranged on the second side of described matrix (1) along described sword limit, described edge bevel (3) is crossing with the alloy hardening layer of described cladding (2) forms cutting edge, wherein, described manufacture method comprises the following steps:
The method of S1, employing laser melting coating forms the alloy hardening layer of described cladding (2);
S2, one side is carried out to described cutter put the first edge on a knife or a pair of scissors to form described edge bevel (3).
9. manufacture method according to claim 8, is characterized in that, described laser cladding of material is the composite powder of ferrous alloy and ceramic material composition, and described step S1 is further comprising the steps of:
S11, maintenance melt temperature are more than or equal to 1150 DEG C and are less than or equal to 1250 DEG C.
10. manufacture method according to claim 9, is characterized in that, described ceramic material comprise in tungsten carbide, titanium carbide, carborundum, boron carbide material one or more.
11. manufacture methods according to claim 10, is characterized in that, described laser cladding of material meets following condition:
The hardness of described laser cladding of material is for being more than or equal to HV713 and being less than or equal to HV1037;
The powder size of described laser cladding of material is for being more than or equal to 60 orders and being less than or equal to 150 orders.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078503.5A CN104647404A (en) | 2015-02-13 | 2015-02-13 | Tool and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078503.5A CN104647404A (en) | 2015-02-13 | 2015-02-13 | Tool and manufacture method thereof |
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| CN104647404A true CN104647404A (en) | 2015-05-27 |
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| CN106077584A (en) * | 2016-06-23 | 2016-11-09 | 奇男子五金制品（浙江）有限公司 | The preparation method of superhard wear composite blade |
| WO2019056227A1 (en) * | 2017-09-20 | 2019-03-28 | 杭州巨星科技股份有限公司 | Tool having cutting blade and manufacturing method therefor |
| CN110066994A (en) * | 2018-01-23 | 2019-07-30 | 武汉苏泊尔炊具有限公司 | The processing method of cutter and the cutter |
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Application publication date: 20150527 |