CN104353898A - Method for preparing stainless steel cutting cold saw and saw blade of cold saw - Google Patents
Method for preparing stainless steel cutting cold saw and saw blade of cold saw Download PDFInfo
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- CN104353898A CN104353898A CN201410521180.8A CN201410521180A CN104353898A CN 104353898 A CN104353898 A CN 104353898A CN 201410521180 A CN201410521180 A CN 201410521180A CN 104353898 A CN104353898 A CN 104353898A
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Abstract
The invention provides a method for preparing a stainless steel cutting cold saw and a saw blade of a cold saw. The method comprises the following steps: performing stress treatment on a circular saw blade base body; controlling the welding precision of a specially-shaped tool bit; processing a low-friction-coefficient chip guiding slot, a chip breakage slot, a tipping prevention edge, a cutting edge and a low-friction-coefficient side surface on the tool bit; performing cutting edge passivation and TiAlN coating treatment after the tool bit is processed. The saw blade prepared according to the method comprises a saw blade base body, sawteeth arranged on the circumference of the saw blade base body and a mounting hole formed in the saw blade base body, a chip breakage slot is formed in a rear tool face of a sawtooth tool bit, a tipping prevention edge is cut at the intersection of the rear tool face and an upper end main side surface of the sawtooth tool bit, a cutting edge is formed at the junction part of the front tool face and the rear tool face, and a chip guiding slot is formed in the front tool face connected with the cutting edge. The saw blade has the benefits of wear resistance and heat resistance; the chip sticking resistance is improved and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of preparation method and saw blade thereof of cutting stainless steel cold saw, belong to technical field of surface coating.
Background technology
General gradually with the application in metal cutting field of the cold saw of the first-born product of profiled metal Stupalox, but difficulty is cut off to the stainless steel high-quality high life be not resolved always, be mainly at present cut to master at a slow speed with bands for band.
The development and apply of surface-coating technology serves very crucial effect to the improvement of cutting performance and the progress of Machining Technology for Cutting, and coated cutting tool has become the important symbol of modern high end cutter.The principle of coating is the infusible compound applying one or more layers high-wearing feature on cutter hub, promotes cutting performance, reaches lifting working (machining) efficiency, extends cutter life, reduces the object of production cost.Coated cutting tool can develop into cutter important in cutting-resistant metal material manufacture field gradually.
Conventional saw blade coating material mainly contains TiN, TiAlN, TiCN, CrN etc.After TiAlN coating achievement in research delivers, professional person represents great concern to the anti-high oxidative capacity of its excellence and good serviceability, has multiple PVD method can prepare TiAlN coating at present.Along with the progress of science and technology, the multiple stratification of coating and nanometer, make the performance of TiAlN coating in continuous lifting.
TiAlN coating has the good characteristics such as hardness is high, oxidizing temperature is high, thermohardening is good, strong adhesion, coefficient of friction are little, and it can ensure that cutter still possesses these excellent properties when high-speed cutting, is the coating that current International Tool industry is promoted mainly the most.Developed country in overseas, the application of TiAlN coated cutting tool is very general.But the spraying effect of existing technology on saw blade is limited, the Stress non-homogeneity of saw blade own, and existing saw blade causes greatly the service life that heat production in use procedure is too many, affect saw blade owing to rubbing.
Summary of the invention
The saw blade spraying effect that the present invention is directed to current technical finesse is limited, the Stress non-homogeneity of saw blade own, heat production causes the life-span short more in saw blade use procedure problem, proposes a kind ofly to reduce coefficient of friction, make on saw blade upper stress evenly thus improve preparation method and the saw blade thereof of the cutting stainless steel cold saw of saw blade lifetime.
A preparation method for cutting stainless steel cold saw, comprises the following steps:
(1) circular saw blade substrate stress process: first tempering is heat-treated to matrix, German import HRC level(l)ing machine is utilized to carry out leveling process to the matrix after process, intrinsic silicon residual stress is fully discharged, then after without the process of distortion table mill, employing is rolled waist technique and is carried out autofrettage at intrinsic silicon, makes it in use resist thermal stress;
(2) special-shaped cutter head welding precision is controlled: after toothholder de-black skin, on Korea S import HANA Full-automatic high frequency bonding machine, carry out high-frequency welding, and bonding piece Product jointing precision;
(3) on cutter head, process low-friction coefficient dregs guiding groove: dregs guiding groove radial rake 7 °, dregs guiding groove angle 140 °, dregs guiding groove R angle is greater than R0.7;
(4) processed broken chip groove on cutter head: the width 0.35 ~ 0.45mm of chip-breaker, groove center, apart from 0.55 ~ 0.85mm, groove depth 0.15 ~ 0.30mm, can play good chip breaking effect;
(5) on cutter head, anti-tipping blade corner angle are processed: anti-tipping blade corner angle are 45 ° of oblique angles, symmetrical, and width is between 0.75 ~ 0.11mm, and symmetrical amount is less than 0.03mm;
(6) on cutter head, cutting edge is processed: the width of cutting edge is 0.15 ~ 0.25mm, angle-25 ° ~-20 °;
(7) on cutter head, low-friction coefficient side is processed: the processing of oil cooling milling apparatus is carried out in side, roughness Ra≤0.20, flank angle must be processed, side overhang, near rake face place relative solder side tooth depth place surmount between 0.02 ~ 0.03mm; Facewidth place bottom the relative solder side in point of a knife place, surmount is between 0.07 ~ 0.10mm.
(8) after cutter head processing, cutting edge passivation process is carried out: utilize the full-automatic cutter head paralysis facility of Japanese import to carry out cutting edge passivation process, process frequency 3 ~ 5 circle/piece;
(9) TiAlN coating process after cutter head grinding also Passivation Treatment.
Further, according to the preparation method of the TiAlN coating in the preparation method of cutting stainless steel cold saw of the present invention described in step (9), step is as follows:
1) all cold saws clean in strict accordance with industry cleaning link standard;
2) saw blade is spaced apart with suitable large small circular plate more than pieces, prevent cutter head from wounding in process;
3) put into stove after saw blade is clamping, be evacuated down to 5.0 × 10
-3~ 9.0 × 10
-3pa;
4) the multi sphere technology adopting electron gun plasma to strengthen, carries out cleaning bottoming to sample jointly by Ar ion and Ti ion;
5) reduction is biased into-600V ~-200V gradually, passes into nitrogen, and the Ti/TiN of deposition 0.002mm meets transition zone (being transitioned into TiN gradually by pure Ti);
6) the non-balance magnetically controlled sputter deposition techniques TiAlN coating adopting electron gun plasma asistance to strengthen.
Further, in the process of TiAlN coating Ti and Al atomic ratio be the high temperature insostatic pressing (HIP) titanium-aluminum alloy target of 60:40 as sputtering target material, pure Ti target is as multi sphere target, and gas adopts industrial high-purity argon gas and nitrogen.
Further, TiAlN coated substrate is ceramet bit.
Further, the deposition of TiAlN coating adopts the unbalanced magnetron sputtering technology of electron gun plasma asistance enhancing, wherein, and electron gun current 110 ~ 145A, magnetic control target electric current 13 ~ 20A; Vacuum: 0.08 ~ 0.45Pa during coating deposition, nitrogen flow: 35 ~ 80cm
3/ min, substrate bias :-50V ~-80V, sedimentation time 13 ~ 60min.
According to the saw blade that the preparation method of cutting stainless steel cold saw of the present invention builds, comprise saw bit matrix, be arranged on saw bit matrix sawtooth circumferentially and be arranged on the installing hole on saw bit matrix, saw bit matrix between adjacent sawtooth is arranged chip pocket at the bottom of the tooth be connected with the sawtooth back of tooth, described sawtooth is met and install saw-tooth tool bit on the saw bit matrix toothholder of cutting direction, and the cutting edge of saw-tooth tool bit is met to cutting direction, it is characterized in that: the rear knife face of described saw-tooth tool bit arranges chip-breaker, after described saw-tooth tool bit, knife face and major opposing side intersection, upper end cut out anti-tipping blade corner angle, described cutting edge is arranged on the junction of rake face and rear knife face, and the rake face be connected with cutting edge arranges dregs guiding groove.
Be alternately arranged about the chip-breaker after the saw-tooth tool bit on adjacent two sawtooth, knife face arranged, the plane at adjacent chip-breaker place be parallel to each other and all with the central axis of saw bit matrix.
Chip-breaker copline on the sawtooth adjacent with same sawtooth.
Described saw-tooth tool bit adopts ceramet bit, and described saw-tooth tool bit applies TiAlN coating.
The present invention, mainly on ceramet bit, adopts low-temperature physics vapour deposition (PVD) to send out the TiAlN coating of coating high rigidity.The TiAlN coating surface that a process for preparing generates the oxide of high strength, and the Ti content in coating controls to control between 12 ~ 14% at 28 ~ 38%, Al content, has packed the sharpness of cutting edge.
The invention has the beneficial effects as follows: ceramet bit cold saw cuts Heat stability is good, has extraordinary wearability and heat endurance; Be greatly improved in conjunction with anti-stick bits performance after advanced TiAlN coating, the life-span is significantly promoted thereupon.
Accompanying drawing explanation
Fig. 1 is the structure chart of cold saw of the present invention.
Fig. 2 is the local structural graph of cold saw of the present invention.
Fig. 3 is the cutter head structure schematic diagram of cold saw of the present invention.
Detailed description of the invention
The present invention is further illustrated below in conjunction with accompanying drawing
Embodiment 1 a kind of cutting stainless steel cold saw preparation method process of the present invention is (with 285mm external diameter, 2.0mm sword is thick, 1.7mm platform is thick, 32mm endoporus, 80Z tooth is example): the processing of oil cooling milling apparatus is carried out in ceramet bit side 43, and roughness Ra≤0.20 μm, processes flank angle, side overhang, near rake face place relative solder side tooth depth place surmount between 0.02 ~ 0.03mm; Facewidth place bottom the relative solder side in point of a knife place, surmount is between 0.07 ~ 0.10mm; Dregs guiding groove 441 aspect, radial rake 7 °, dregs guiding groove angle 140 °, dregs guiding groove R angle is greater than R0.7mm; Chip-breaker 421 aspect, width 0.35mm, groove center is apart from 0.80mm, groove depth 0.18mm; Anti-tipping blade corner angle 431 aspect, 45 ° of oblique angles, symmetrical, width is at 0.95mm, and symmetrical amount is less than 0.03mm; Cutting edge 41 width 0.15mm, angle-25 °, encloses through grinding post-passivation process 4; Adopt ceramet bit as coated substrates, after cleaning, put into stove, be evacuated to 8.0 × 103Pa.The multi sphere technology adopting electron gun plasma to strengthen, carries out cleaning bottoming to sample jointly by Ar ion and Ti ion.Reduce and be biased into-400V, pass into nitrogen.The non-balance magnetically controlled sputter technology adopting electron gun plasma asistance to strengthen carries out the deposition of TiAlN coating, electron gun current 130A, magnetic control target electric current 17A.Vacuum: 0.23Pa during coating deposition, nitrogen flow: 60cm
3/ min, substrate bias :-50V ~-80V, sedimentation time: 30min.
The saw blade that embodiment 2 builds according to the preparation method of the cutting stainless steel cold saw described in embodiment 1, comprise saw bit matrix 1, be arranged on saw bit matrix 1 sawtooth 2 circumferentially and the installing hole 3 be arranged on saw bit matrix, saw bit matrix 1 between adjacent sawtooth 2 is arranged chip pocket 22 at the bottom of the tooth be connected with sawtooth 2 back of tooth 21, described sawtooth 2 is met and install saw-tooth tool bit 4 on saw bit matrix 1 toothholder of cutting direction, and the cutting edge 41 of saw-tooth tool bit 4 is met to cutting direction, the rear knife face 42 of described saw-tooth tool bit 4 arranges chip-breaker 421, after described saw-tooth tool bit 4, knife face 42 and upper end major opposing side 43 intersection cut out anti-tipping blade corner angle 431, described cutting edge 41 is arranged on the junction of rake face 44 and rear knife face 42, and the rake face 44 be connected with cutting edge 41 arranges dregs guiding groove 441.
The chip-breaker about 421 knife face 42 arranged after saw-tooth tool bit 4 on adjacent two sawtooth 2 is alternately arranged, the plane at adjacent chip-breaker 421 place be parallel to each other and all with the central axis of saw bit matrix.
Chip-breaker 421 copline on the sawtooth adjacent with same sawtooth.
Described saw-tooth tool bit adopts ceramet bit, and described saw-tooth tool bit applies TiAlN coating.
Content described in this description embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also comprises those skilled in the art and conceives the equivalent technologies means that can expect according to the present invention.
Claims (9)
1. a preparation method for cutting stainless steel cold saw, comprises the following steps:
(1) circular saw blade substrate stress process: first tempering is heat-treated to matrix, German import HRC level(l)ing machine is utilized to carry out leveling process to the matrix after process, intrinsic silicon residual stress is fully discharged, then after without the process of distortion table mill, employing is rolled waist technique and is carried out autofrettage at intrinsic silicon, makes it in use resist thermal stress;
(2) special-shaped cutter head welding precision is controlled: after toothholder de-black skin, on Korea S import HANA Full-automatic high frequency bonding machine, carry out high-frequency welding, and bonding piece Product jointing precision;
(3) on cutter head, process low-friction coefficient dregs guiding groove: dregs guiding groove radial rake 7 °, dregs guiding groove angle 140 °, dregs guiding groove R angle is greater than R0.7;
(4) processed broken chip groove on cutter head: the width 0.35 ~ 0.45mm of chip-breaker, groove center is apart from 0.55 ~ 0.85mm, groove depth 0.15 ~ 0.30mm;
(5) on cutter head, anti-tipping blade corner angle are processed: anti-tipping blade corner angle are 45 ° of oblique angles, symmetrical, and width is between 0.75 ~ 0.11mm, and symmetrical amount is less than 0.03mm;
(6) on cutter head, cutting edge is processed: the width of cutting edge is 0.15 ~ 0.25mm, angle-25 ° ~-20 °;
(7) on cutter head, low-friction coefficient side is processed: the processing of oil cooling milling apparatus is carried out in side, roughness Ra≤0.20, flank angle must be processed, side overhang, near rake face place relative solder side tooth depth place surmount between 0.02 ~ 0.03mm; Facewidth place bottom the relative solder side in point of a knife place, surmount is between 0.07 ~ 0.10mm;
(8) after cutter head processing, cutting edge passivation process is carried out: utilize the full-automatic cutter head paralysis facility of Japanese import to carry out cutting edge passivation process, process frequency 3 ~ 5 circle/piece;
(9) TiAlN coating process after cutter head grinding also Passivation Treatment.
2. the preparation method of cutting stainless steel cold saw as claimed in claim 1, is characterized in that: the TiAlN coating treatment step in (9) is:
1) all cold saws clean according to industry cleaning link standard;
2) by spaced apart for saw blade plectane more than pieces, in process, prevent cutter head from wounding;
3) put into stove after saw blade is clamping, be evacuated down to 5.0 × 10
-3~ 9.0 × 10
-3pa;
4) the multi sphere technology adopting electron gun plasma to strengthen, carries out cleaning bottoming to sample jointly by Ar ion and Ti ion;
5) reduction is biased into-600V ~-200V gradually, passes into nitrogen, and the Ti/TiN of deposition 0.002mm meets transition zone (being transitioned into TiN gradually by pure Ti);
6) the non-balance magnetically controlled sputter deposition techniques TiAlN coating adopting electron gun plasma asistance to strengthen.
3. the preparation method of cutting stainless steel cold saw as claimed in claim 2, it is characterized in that: in the process of TiAlN coating, Ti and Al atomic ratio is that the high temperature insostatic pressing (HIP) titanium-aluminum alloy target of 60:40 is as sputtering target material, pure Ti target is as multi sphere target, and gas adopts industrial high-purity argon gas and nitrogen.
4. the preparation method of cutting stainless steel cold saw according to claim 3, is characterized in that: TiAlN coated substrate is ceramet bit.
5. the preparation method of cutting stainless steel cold saw as claimed in claim 3, is characterized in that: the deposition of TiAlN coating adopts the unbalanced magnetron sputtering technology of electron gun plasma asistance enhancing, electron gun current 110 ~ 145A, magnetic control target electric current 13 ~ 20A; Vacuum: 0.08 ~ 0.45Pa during coating deposition, nitrogen flow: 35 ~ 80cm
3/ min, substrate bias :-50V ~-80V, sedimentation time 13 ~ 60min.
6. according to the saw blade that the preparation method of cutting stainless steel cold saw according to claim 1 builds, comprise saw bit matrix, be arranged on saw bit matrix sawtooth circumferentially and be arranged on the installing hole on saw bit matrix, saw bit matrix between adjacent sawtooth is arranged chip pocket at the bottom of the tooth be connected with the sawtooth back of tooth, described sawtooth is met and install saw-tooth tool bit on the saw bit matrix toothholder of cutting direction, and the cutting edge of saw-tooth tool bit is met to cutting direction, it is characterized in that: the rear knife face of described saw-tooth tool bit arranges chip-breaker, after described saw-tooth tool bit, knife face and major opposing side intersection, upper end cut out anti-tipping blade corner angle, described cutting edge is arranged on the junction of rake face and rear knife face, and the rake face be connected with cutting edge arranges dregs guiding groove.
7. the saw blade of preparation method's structure of cutting stainless steel cold saw as claimed in claim 6, it is characterized in that: be alternately arranged about the chip-breaker after the saw-tooth tool bit on adjacent two sawtooth, knife face arranged, the plane at adjacent chip-breaker place be parallel to each other and all with the central axis of saw bit matrix.
8. the saw blade of preparation method's structure of cutting stainless steel cold saw as claimed in claim 7, is characterized in that: the chip-breaker copline on the sawtooth adjacent with same sawtooth.
9. the saw blade of preparation method's structure of cutting stainless steel cold saw as claimed in claim 8, is characterized in that: described saw-tooth tool bit adopts ceramet bit, and described saw-tooth tool bit applies TiAlN coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410521180.8A CN104353898B (en) | 2014-09-30 | 2014-09-30 | The preparation method of a kind of cutting stainless steel cold saw and saw blade thereof |
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|---|---|---|---|
| CN201410521180.8A CN104353898B (en) | 2014-09-30 | 2014-09-30 | The preparation method of a kind of cutting stainless steel cold saw and saw blade thereof |
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| CN104353898B CN104353898B (en) | 2016-08-31 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149686A (en) * | 2015-09-21 | 2015-12-16 | 杭州博野精密工具有限公司 | Polymeric diamond saw blade and manufacturing process thereof |
| CN106141311A (en) * | 2016-07-18 | 2016-11-23 | 成都市壹佰刀具有限公司 | A kind of production technology of band alloy cutter head saw blade |
| CN108555392A (en) * | 2018-06-11 | 2018-09-21 | 杭州和源精密工具有限公司 | The preparation method of oversize cold saw |
| CN109317752A (en) * | 2018-11-23 | 2019-02-12 | 成都壹佰科技有限公司 | A kind of processing technology of cold saw blade |
| CN109963677A (en) * | 2016-10-18 | 2019-07-02 | 兼房株式会社 | Annular saw knife with point of a knife piece |
| CN110640216A (en) * | 2019-08-14 | 2020-01-03 | 杭州博野精密工具有限公司 | Cold saw circular saw blade manufacturing process |
| WO2020210812A1 (en) * | 2019-04-12 | 2020-10-15 | The M.K. Morse Company | Improved circular saw |
| CN114247935A (en) * | 2021-11-25 | 2022-03-29 | 罗泾熊 | Circular saw blade with good chip removal performance |
| CN114901411A (en) * | 2020-02-28 | 2022-08-12 | 兼房株式会社 | Circular saw blade |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149686A (en) * | 2015-09-21 | 2015-12-16 | 杭州博野精密工具有限公司 | Polymeric diamond saw blade and manufacturing process thereof |
| CN106141311A (en) * | 2016-07-18 | 2016-11-23 | 成都市壹佰刀具有限公司 | A kind of production technology of band alloy cutter head saw blade |
| CN106141311B (en) * | 2016-07-18 | 2017-12-22 | 成都市壹佰刀具有限公司 | A kind of production technology with alloy cutter head saw blade |
| CN109963677A (en) * | 2016-10-18 | 2019-07-02 | 兼房株式会社 | Annular saw knife with point of a knife piece |
| CN108555392A (en) * | 2018-06-11 | 2018-09-21 | 杭州和源精密工具有限公司 | The preparation method of oversize cold saw |
| CN109317752A (en) * | 2018-11-23 | 2019-02-12 | 成都壹佰科技有限公司 | A kind of processing technology of cold saw blade |
| WO2020210812A1 (en) * | 2019-04-12 | 2020-10-15 | The M.K. Morse Company | Improved circular saw |
| CN110640216A (en) * | 2019-08-14 | 2020-01-03 | 杭州博野精密工具有限公司 | Cold saw circular saw blade manufacturing process |
| CN114901411A (en) * | 2020-02-28 | 2022-08-12 | 兼房株式会社 | Circular saw blade |
| CN114901411B (en) * | 2020-02-28 | 2023-11-07 | 兼房株式会社 | circular saw blade |
| CN114247935A (en) * | 2021-11-25 | 2022-03-29 | 罗泾熊 | Circular saw blade with good chip removal performance |
| CN114247935B (en) * | 2021-11-25 | 2024-05-31 | 江西铜业集团（余干）锻铸有限公司 | Circular saw blade with good chip removal performance |
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