CN102909536A - Method for producing hard alloy cutter blade - Google Patents
Method for producing hard alloy cutter blade Download PDFInfo
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- CN102909536A CN102909536A CN 201110226304 CN201110226304A CN102909536A CN 102909536 A CN102909536 A CN 102909536A CN 201110226304 CN201110226304 CN 201110226304 CN 201110226304 A CN201110226304 A CN 201110226304A CN 102909536 A CN102909536 A CN 102909536A
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- carbide chip
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Abstract
The invention relates to a method for producing a hard alloy cutter blade, and the method comprises the following steps of firstly utilizing a two-directional oscillation hot-pressing method to produce a hard alloy plate or a hard alloy sheet with high performance, then linearly cutting the plate or the sheet into different cutter blanks with different model specifications, and finally processing the cutter blank through procedures such as electric spark perforating, grinding, edge opening, polishing, titanium coating and the like into a cutter blade. Compared with the cutter blade which is produced by traditional methods, the material tissue structure is compact, the crystal particle is fine, the performance of the material is greatly improved, specially the impact toughness and the wear resistance are greatly improved, and the requirements of a numerical-control machine tool and a machining center on cutting blades can be better met.
Description
Affiliated technical field
The present invention relates to a kind of method of producing carbide chip, be particularly useful for producing high performance insert for metal cutting, this blade can be widely used in the occasions higher to the cutter quality requirement such as Digit Control Machine Tool, machining center.
Background technology
At present; the working system of known carbide chip is: will carry out batch mixing by metal dust adding resin or other binding agents that different formulations prepares; with the material that mixes after powder forming machine or other pressing machine dies are pressed into blade shapes; put into again vacuum sintering furnace or hydrogen shield sintering furnace or vacuum-pressure sintering furnace or hot isostatic press stove and carry out sintering, carry out again grinding after the band blade base substrate cooling, put the first edge on a knife or a pair of scissors, polish and namely obtain the finished product blade.Some blades also will carry out surperficial titanizing and process to improve its antioxygenic property.
With the carbide chip that existing method is produced, its material grains is thicker, and interior tissue is fine and close not, therefore the impact flexibility of blade is relatively poor, and not shock resistance, wearability is bad, and blade weares and teares comparatively fast in use, and service life is short.
Summary of the invention
In order to overcome now methodical deficiency, improve blade service life, the invention provides and a kind ofly produce high performance hard alloy plates or sheet material with the bi-directional oscillating pressure sintering first, after this sheet material or sheet material warp are cut into difform cutter blank, again cutter blank carried out electric-spark drilling, grinding, put the first edge on a knife or a pair of scissors, the operation such as polishing makes blade.The blade that the method is produced compares with the blade of producing that now ins all sorts of ways, materials microstructure is fine and close, and crystal grain is tiny, and the performance of material obtains larger raising, especially impact flexibility and wearability improve a lot, and can satisfy better Digit Control Machine Tool, machining center to the requirement of cutting tip.
The technology used in the present invention solution is: utilize the bi-directional oscillating hot pressing furnace, the powder for preparing is pressed into first certain thickness circle or the polygonal pressing plate base for the treatment of in advance with forcing press, then this is treated that the pressing plate base puts into circular or polygonal graphite jig, the cavity shape of graphite jig is consistent with the shape and size of slab with size, and the height of graphite jig die cavity can be decided according to bi-directional oscillating hot pressing furnace furnace height.Circle or polygonal graphite push-down head are placed the graphite jig bottom, then put one deck and treat the pressing plate base, the above is put the circular or polygonal antiseized interlayer that one deck is made with carbon product or other exotic materials, then put again one deck above and treat the pressing plate base, put again the antiseized interlayer of one deck, alternately laminated like this till the die cavity of graphite jig is piled.Pile the upper back and put again a circle or polygonal graphite seaming chuck, then will pile the burner hearth that the graphite jig for the treatment of the pressing plate base places the bi-directional oscillating hot pressing furnace, close bell, vacuumize, mold heated is heated up and to the slab pressurization of vibrating.The bi-directional oscillating pressure that is applied to upper and lower pressure head between hypothermic phase is very little, gradually rising along with temperature, the bi-directional oscillating pressure that is applied to upper and lower pressure head strengthens gradually, when temperature is elevated to when treating that the pressed compact body liquid phase occurs or is in sintering state, the bi-directional oscillating pressure that is applied to upper and lower pressure head reaches maximum, under this temperature, carry out the insulation of certain hour, and regulate amplitude and the frequency of bi-directional oscillating pressurization by Hydrauservo System, to adapt to the sintering pressing process of heterogeneity material.
Effect of the present invention is, can will treat that the pressed compact body at high temperature fully mixes, and thoroughly eliminates air entrapment, defects i.e.cracks even realizes that defective makes up.Owing to utilizing bi-directional oscillating hot pressing, the comparable normal sintering temperature of its sintering temperature is slightly low, and the material grains that obtains is tiny, and impact flexibility and wearability improve greatly.
With circular or polygonal high-performance rigid sheet alloy or the sheet material of producing in this way, warp cuts into the blade blank of required blade shapes and size again, again through electric-spark drilling, grinding, put the first edge on a knife or a pair of scissors, the operation such as polishing makes blade, also can carry out as required surperficial titanizing and process.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is that the sheet material of bi-directional oscillating pressure sintering production carbide chip of the present invention is produced figure.
Fig. 2 is the rear operation schematic diagram that bi-directional oscillating pressure sintering of the present invention is produced carbide chip.
Metal pressure head on 1. among the figure, 2. vaccum seal ring, 3. go up heat insulation pressure-bearing post, 4. go up the graphite pressure head, 5. treat the pressing plate base, 6. antiseized interlayer, 7. graphite jig, 8. graphite heater, 9. heat screen, 10. furnace shell, 11. lower graphite pressure head, 12. times heat insulation pressure-bearing posts, 13. times metal pressure heads, 14. high-performance rigid sheet alloy, 15. the carbide chip blank that warp cutting obtains, 16. carbide chip semi-finished product behind electric spark-erosion perforation, the 17. carbide chip semi-finished product through the mill two sides, 18. the carbide chip semi-finished product through putting the first edge on a knife or a pair of scissors, 19. through the polishing after the carbide chip finished product.
Specific embodiments
As shown in fig. 1, the powder for preparing is pressed into certain thickness circle first in advance with forcing press treats pressing plate base (5), then this is treated that pressing plate base (5) puts into circular graphite jig (7), the cavity shape of graphite jig (7) is consistent with the shape and size of slab (5) with size, the height of graphite jig (7) die cavity can be the interior Gao Erding of graphite heater (9) according to bi-directional oscillating hot pressing furnace burner hearth, but the graphite heater periphery is thermostable heat insulation screen (8).The graphite push-down head (11) of circle is placed graphite jig (7) bottom, then put one deck and treat pressing plate base (5), then put the circular antiseized interlayer (6) that one deck is made with charcoal cloth in the above, then put again one deck above and treat the pressing plate base, put again the antiseized interlayer of one deck (6) in the above, alternately laminated like this till the die cavity of graphite jig (7) is piled.Pile the upper back and put again the upper graphite pressure head (4) of a circle, then will fill the burner hearth that the graphite jig (7) for the treatment of the pressing plate base places the bi-directional oscillating hot pressing furnace, close bell, vacuumize, to graphite jig (7) heat temperature raising.Between upper graphite pressure head (4) and upper metal pressure head (1), be provided with the upper heat insulation pressure-bearing post (3) for transmission of pressure.Between lower graphite pressure head (11) and lower metal pressure head (13), be provided with the lower heat insulation pressure-bearing post (12) for transmission of pressure.Between upper metal pressure head (1) and lower metal pressure head and furnace shell, be equipped with vaccum seal ring (2).Be applied between hypothermic phase, the bi-directional oscillating pressure of push-down head is very little, gradually rising along with temperature, be applied to, the bi-directional oscillating pressure of push-down head strengthens gradually, when temperature is elevated to when treating that the pressed compact body liquid phase occurs or is in sintering state, be applied to, it is maximum that the bi-directional oscillating pressure of push-down head reaches, under this temperature, carry out the insulation of certain hour, and regulate the force value be applied to the oscillation pressure on upper metal pressure head (1) and the lower metal pressure head (13) by Hydrauservo System, amplitude and frequency are to adapt to the sintering pressing process of this material.Lower the temperature after heat-insulating pressurizing finishes, then to take out and press burned slab namely be high performance hard alloy plates in blow-on.
Shown in Fig. 2, the circular high-performance rigid sheet alloy (14) that bi-directional oscillating hot pressing is produced cuts into some carbide chip blanks (15) through work step A line, be processed into carbide chip semi-finished product (16) with holes by step B electric spark-erosion perforation, be processed into carbide chip semi-finished product (17) through work step C plain grinding two sides again, around work step D mill, put the first edge on a knife or a pair of scissors again and be processed into carbide chip semi-finished product (18), preferably become high-performance rigid alloy blade finished product (19) through work step E polishing.
Claims (8)
1. method of producing carbide chip, by high-performance sheet material or sheet material produce and after the operation such as add and form, it is characterized in that: this high-performance sheet material or sheet material are to produce with the bi-directional oscillating pressure sintering, and then this sheet material or sheet material are processed into the blade of various model specifications.
2. carbide chip production method according to claim 1 is characterized in that: this high-performance rigid sheet alloy or sheet material are with the conglobate sheet material of bi-directional oscillating pressure sintering system or sheet material.
3. carbide chip production method according to claim 1, it is characterized in that: this high-performance rigid sheet alloy or sheet material are to make foursquare sheet material or sheet material with the bi-directional oscillating pressure sintering.
4. carbide chip production method according to claim 1, it is characterized in that: this high-performance rigid sheet alloy or sheet material are to make polygonal sheet material or sheet material with the bi-directional oscillating pressure sintering.
5. carbide chip production method according to claim 1 is characterized in that: be that this high-performance rigid sheet alloy or sheet material warp are cut into blade blank, grinding, put the first edge on a knife or a pair of scissors, polish and make carbide chip.
6. carbide chip production method according to claim 1 is characterized in that: be with this high-performance rigid sheet alloy or sheet material warp cut into blade blank, grinding, put the first edge on a knife or a pair of scissors, polishing, titanizing make carbide chip.
7. carbide chip production method according to claim 1 is characterized in that: be that this high-performance rigid sheet alloy or sheet material warp are cut into blade blank, electric spark-erosion perforation, grinding, put the first edge on a knife or a pair of scissors, polish and make carbide chip.
8. carbide chip production method according to claim 1 is characterized in that: be with this high-performance rigid sheet alloy or sheet material warp cut into blade blank, electric spark-erosion perforation, grinding, put the first edge on a knife or a pair of scissors, polishing, titanizing make carbide chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110226304 CN102909536A (en) | 2011-08-01 | 2011-08-01 | Method for producing hard alloy cutter blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110226304 CN102909536A (en) | 2011-08-01 | 2011-08-01 | Method for producing hard alloy cutter blade |
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| CN102909536A true CN102909536A (en) | 2013-02-06 |
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| CN 201110226304 Pending CN102909536A (en) | 2011-08-01 | 2011-08-01 | Method for producing hard alloy cutter blade |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002130A (en) * | 2016-04-08 | 2016-10-12 | 卢志兵 | Tool production method |
| CN108015504A (en) * | 2017-11-30 | 2018-05-11 | 株洲三鑫硬质合金生产有限公司 | A kind of hard alloy V grooves knife and its production technology |
| CN109333172A (en) * | 2018-11-27 | 2019-02-15 | 南通四合不锈钢制品有限公司 | A kind of hand throwing technique of steel cutter |
-
2011
- 2011-08-01 CN CN 201110226304 patent/CN102909536A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002130A (en) * | 2016-04-08 | 2016-10-12 | 卢志兵 | Tool production method |
| CN106002130B (en) * | 2016-04-08 | 2018-07-10 | 卢志兵 | A kind of cutter production method |
| CN108015504A (en) * | 2017-11-30 | 2018-05-11 | 株洲三鑫硬质合金生产有限公司 | A kind of hard alloy V grooves knife and its production technology |
| CN109333172A (en) * | 2018-11-27 | 2019-02-15 | 南通四合不锈钢制品有限公司 | A kind of hand throwing technique of steel cutter |
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Application publication date: 20130206 |