CN1308568A - Method for producing a cutting plate for the chip-cutting Machining of metallic tools - Google Patents
Method for producing a cutting plate for the chip-cutting Machining of metallic tools Download PDFInfo
- Publication number
- CN1308568A CN1308568A CN99808227A CN99808227A CN1308568A CN 1308568 A CN1308568 A CN 1308568A CN 99808227 A CN99808227 A CN 99808227A CN 99808227 A CN99808227 A CN 99808227A CN 1308568 A CN1308568 A CN 1308568A
- Authority
- CN
- China
- Prior art keywords
- cutting
- cutting plate
- plate
- blank
- seamed edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
- B23B27/065—Thread-turning tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/12—Boron nitride
- B23B2226/125—Boron nitride cubic [CBN]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/31—Diamond
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Drilling Tools (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a method for producing a cutting plate for the chip-cutting machining of metallic workpieces, comprising the following steps: application of a powder layer containing crystals of diamond and/or cubic boron nitride or such like on a metal plate, preferably a hard metal plate; sintering of the powder layer on the metal plate; and grinding of at least one lateral face of the coated metal plate to produce at least one cutting edge. In a first step a cutting plate blank without cutting edge is produced. In a subsequent second step the cutting plate blank in the region in which the cutting plate(s) are to be situated is given a desired shape appropriate for the intended application. In this region the plate is then ground to produce at least one cutting edge.
Description
The present invention addresses the manufacture method according to the cutting plate that is used for the metal tools machining of the total implication of claim 1, also has in addition by the cutting plate blank of the total implication of claim 6 and the cutting plate of pressing the total implication of claim 9.
The cutting plate and the manufacture method thereof that are used for the metal tools machining are known, address cutting plate below here earlier, and it has a metal carrier is carrier, for example metallic plate, and the wearing layer of a crystallization that combines with this carrier.Wearing layer comprise Jin Gang bore crystallization (polycrystalline gold steel bores/PKD) and/or cubic boron nitride (CBN) crystallization.This layer preferably is coated with the basal layer of forming with carbide alloy, and the method with sintering can not combine with metallic carrier basically dividually then.For example known, the powder bed of kind described here is combined with cemented carbide substrate under 1500 ℃ and 50 to 60 kilobars and form.
In order to make a cutting seamed edge, will be furnished with a side adjoining land of the metallic plate of wearing layer and polish.When cutting plate will have a plurality of cutting seamed edge, then need the side of respective number is made it to polish.
Here in the known method of Miao Shuing, the metallic plate of coating or directly make by the shape that later cutting plate should have.But also can use, the bigger metallic plate that is called as circular blank goes to make by method as described herein, and cut or cut and make cutting plate, the side that will form simultaneously makes it to polish at this position then, so just makes desired cutting seamed edge afterwards.
What this method was relative is somewhat expensive, and is related to warehouse storage and also expends very big.
Therefore task of the present invention is to prepare to provide to start mentioned method, and this method does not have these shortcomings.
In order to finish this task, recommend a kind of method that includes the described step of claim 1.The feature of this method is: produce a cutting plate blank in the first step of method, this blank does not also have its net shape.Blank does not particularly also have specifically created this seamed edge in the position that should have one or several cutting seamed edge when the cutting plate after the completion.For such cutting plate blank being used as cutting plate, require at first privileged sites described here are made it to become desired shape in second step of method afterwards, this shape is adapted to special operating position.For example cutting plate blank position, square termination at first should make it to become triangle or have a tip, becomes a threads turn instrument so that can achieve.The appearance at the position of setting for the machining of cutting plate blank can draw by the form of any appropriate.Only in this way could on cutting seamed edge position afterwards, polish to finished cutting plate blank in this manner.
The cutting plate blank is made the also improper machining that directly is used in metal tools in back at them.This shows as shortcoming at first basically, because will in second step of method, can produce the cutting plate of completion just now, before the processing of cutting seamed edge by the side can create, this position that this cutting seamed edge should be in also requires special processing, and must form the shape of a requirement.Confirm that the cutting plate blank of kind described here can produce in a large number, and without freight house in the middle of further classification just can be supplied.Can obtain from the warehouse stock of unspecific cutting plate blank arbitrarily that blank is used for special cutting plate manufacturing, this blank is made the shape of requirement in last processing, and the mat polishing process makes it to have at least one cutting seamed edge.
The feature of the best form of implementation of method is that the cutting plate blank makes it to form the shape of requirement by polishing process in a cutting seamed edge position should be arranged at least.When the suitable enforcement of polishing process, the processing at this position can be carried out like this, when promptly moulding is polished in the side that generates at the same time, can directly make at least one cutting seamed edge.Therefore this is possible, with additional method second portion and the bruting process that is used to cut the seamed edge manufacturing combine, and can reduce to minimum the process time that is used for cutting plate manufacturing requirement.
Other form of implementation of method can draw from remaining dependent claims.
In addition, task of the present invention is to prepare to be provided for the cutting plate blank that cutting plate is made, and seems owing to manufacturing price is suitable and to make a conspicuous figure.
In order to finish this task, recommend a kind of cutting plate blank with the described feature of claim 6, it is characterized in that it at first has unspecific shape.Therefore, the cutting plate blank is not emphasized consistent on a specific processing mode, in other words, is not to be specific instrument form.Warehousing storage to non-special like this blank does not have special institutional framework requirement, and therefore simple and suitable a surname of price is attainable.
Further specifying by remaining dependent claims of other of cutting plate blank provides.
The present invention is with reference to being further elaborated below with reference to the accompanying drawings:
Fig. 1 is the vertical view of cutting plate;
Fig. 2 be cutting plate among Fig. 1 front view and
Fig. 3 is the side view of the cutting plate shown in Fig. 1.
Fig. 1 represents the vertical view of cutting plate 1, and it has rectangular base shape basically.Vertically one of side above vertical side 3, is provided with projection 5 and groove 7 here, and both are leg-of-mutton shapes for example basically here, is to prepare to make sawtooth in order to be used for, and cutting plate 1 is fixed on reliably becomes possibility in the instrument.Because projection 5 and the groove 7 that on vertical side 3, is provided with here, make cutting plate 1 can be in instrument different positions tightened thereby guaranteed cutting plate after be processed into possibility.Therefore, if the cutting plate rust, just can make it like this to be reentered into to tighten in the instrument and carry out back processing, thereby can continue to use.
Cutting plate 1 is to be made by cutting plate blank 9, and this blank has the outline of cutting plate 1 basically, but it is rectangular at the cutting seamed edge 13 of cutting plate 1 and 15 residing positions 11 when initial basically, and this shows with ruling in Fig. 1.
In the embodiments described herein of cutting plate 1, cutting seamed edge 13 and 15 is that the center line 17 that is symmetrical in imagination is provided with in position 11, and and for example about 30 ° angle of each formation of this center line.Show by dotted line 19, also can set a cutting seamed edge 13 ' that passes the whole height h stretching, extension of cutting plate 1, it here is to give an example and the about 40 ° angle of center line 17 formation purely.Certainly this is conceivable, and this cutting seamed edge 13 ' also extends into the mirror image mapping with center line 17 and extends.
Basically the rectangular position 11 of cutting plate blank 9, it is attainable being adjusted to desired cutting seamed edge by special machining mode, this situation will be without difficulty very clearly according to the explanation of repeated description here.
Fig. 2 shows the front view of cutting plate 1, just the view at position 11.
This is described clearly to express cutting plate 1 and has a metal carrier is carrier, is metallic plate 21, preferably a carbide alloy board here.On metallic plate, with N-C hard material coating, promptly powder bed 23 basically not disengageably sintering get on.This powder bed comprises Jin Gang and bores crystallization and/or cubic boron nitride crystallization or analog.This layer is hard especially, and is wear-resisting and resistance arranged, and it is put with point and is illustrated.
In the embodiments described herein of cutting plate 1, an inclined-plane 27 is arranged on the back side 25 of powder bed 23 relative positions, this inclined-plane is used for the certain installation of cutting plate 1 on instrument.
The side 29 that is positioned at below Fig. 2 tilts with respect to the median plane E of imagination.It here from the surface 31 of powder bed 23 with respect to median plane E for example about 6 ° of the wedge angle that tilts.Top side 33, it is equivalent to vertical side 3 (Fig. 1), is parallel with median plane E.
From vertical view, the side 35 and 37 that is positioned at the front in position 11 can be seen, in order to make cutting seamed edge 13 and 15, is polished in these two sides.The describing of Fig. 2 represents that the side 35 and 37 of front intersects in the scope of median plane E, therefore, form symmetry.
The side view of Fig. 3 shows vertical side 3 of the top of cutting plate 1 among Fig. 1.Element at the cutting plate described in Fig. 1 and 21 here indicates with identical label, so just can be with reference to the description to Fig. 1 and Fig. 2.
According to the describing and can be clear that of Fig. 3, vertically side 3 is provided with projection 5 and groove 7 fully, and they extend along the gross thickness d of cutting plate 1, and the dorsal surface 39 that is arranged essentially parallel to cutting plate 1 stretches.
Cutting plate 1 includes carrier is carrier 21 and a same powder bed 23 that shows with the some point here, here also is clearly.
Line has shown also that here some of cutting plate blank 9 partly will be removed in order to form the cutting seamed edge here in this position in this position 11 of cutting plate 1.
Below the manufacture method of the cutting plate 1 that is used for the metal tools machining is inquired into.
In the first step of method, a powder bed is coated on the carrier is carrier 21, just be coated on the metallic plate, preferably on the carbide alloy board.This powder bed comprises Jin Gang and bores crystallization and/or cubic boron nitride crystallization or analog.Powder bed with sintering method for example under 1500 ℃ of temperature and pressure 50 to 60 kilobars sintering on carrier is carrier 21, so just form the combination that can not throw off.
Cated metallic plate can have the shape at Fig. 1 and 3 described cutting plate blanks 9 from the beginning.But this also is possible, separates or cut the cutting plate blank 9 of following kind described here from bigger cated metallic plate.Cutting process can pass through caustic solution, preferably realizes by the iron wire caustic solution.Projection 5 and groove 7 may configure in the scope of vertical side 3 at that time.
The position 11 of cutting plate blank is not particular provisions, that is to say that special regulation is not made in 1 later use to cutting plate.Setting this blank here among the embodiment of the cutting plate blank 9 of Xian Shiing 11 is rectangular shape at the position basically.
The cutting plate blank 9 of this kind is not wanted special warehouse consumption, because this blank is not listed special instrument in.
Definite shape can be made in the position 11 of cutting plate blank 9 as required, thereby cutting plate is to turning right or turn left, screw thread cutting plate (see figure 1) or also to drill bit and/or concerning reamer as the thorn cutter, it is applicable changeing cutter.
The position 11 of cutting plate blank 9 can form the shape that requires with cutting method and/or polishing process.Can form a plurality of sides by this way, make it from least one side wherein then to be used to make at least one cutting seamed edge by polishing process.
In a word, because the simple base shape of cutting plate blank 9, its manufacturing is the ten minutes simple possible, and this is very clearly.If abandon the special appearance of vertical seamed edge, refer to vertical seamed edge 3 here, this is effective especially certainly.Therefore, the manufacturing of blank is just fast especially and price is suitably possible.The storehouse reservation of this " neutrality " blank as above said, can be realized the price that suits equally.Last this shows, and 11 processing is simple especially to cutting plate blank 9 at the position.Be the desired additional method step of the manufacturing of cutting plate 1, can realize fast too and price suitable, 11 appearance can realize by cutting method and/or polishing process the cutting plate blank at the position.And latter's method advantageous particularly especially requires making also to have produced desired cutting seamed edge in the shape, thereby just can make it to reduce to minimum from the surcharge that cutting plate blank 9 is made finished product cutting plate 1.
From the above mentioned, it is clearly that cutting plate 1 can generally and use comprehensively, because almost the cutting seamed edge of any geometry can both be made on the position 11 of cutting plate blank 9, simultaneously blank 9 can so usually form, so that can win application in instrument arbitrarily and for different machining.Comprehensively realize becoming possibility for general, projection 5 that shows among Fig. 1 and groove 7 also can be arranged on other the face of cutting plate 1.At last, in order to guarantee that the 9 general application of cutting plate blank also can wholely abandon this moulding.
Be also noted that at last cutting plate 1 can directly stretch tight in the instrument.Cutting plate is welded on the base support, then bearing is stretched tight in the instrument of being fixed on, this also is possible.
Claims (9)
1. be used for the manufacture method of the cutting plate of metal tools machining, have the following step:
---the powder bed that will contain spark crystallization and/or cubic boron nitride crystallization or analog is coated on the metallic plate, carbide alloy board preferably,
---with the powder bed sintering on metallic plate,
---with at least one side polishing of cated metallic plate, so that produce at least one cutting seamed edge,
It is characterized in that:
---in the first step of method, make one not with the cutting plate blank that cuts seamed edge,
---in second step of subsequently method, the cutting plate blank is formed suitable shape by the operating position requirement at the position that cutting plate should be arranged in, and
---in order to make at least one cutting seamed edge, in this position, polish.
2. by the method for claim 1, it is characterized in that the cutting plate blank is by cutting on the cated metallic plate or cutting from cated metallic plate.
3. by the method for claim 2, it is characterized in that shear history with caustic solution preferably the iron wire caustic solution carry out.
4. by the method one of in the claim 1 to 3, it is characterized in that cutting seamed edge should make it to form desired shape by cutting method and/or polishing process at the position that it was positioned at.
5. by the method one of in the aforementioned claim, it is characterized in that being equipped with on the metallic plate powder bed that comprehensively links up.
6. make the cutting plate blank of the cutting plate that is used for the metal tools machining, it is characterized in that having the non-special shape of a relevant machining at the position that the cutting seamed edge should be arranged in.
7. by the cutting plate blank of claim 7, it is characterized in that, this blank is cut and/or polish,, produce at least one cutting seamed edge through polishing from wherein at least one side so that form a plurality of sides.
8. by the cutting plate blank of claim 7, it is characterized in that the surface (vertically side (3)) that has at least to be furnished with projection (5) and groove (7).
9. by the cutting plate that is used for the metal tools machining of the method manufacturing one of in the claim 1 to 5, it is characterized in that cutting seamed edge is such formation, so that these cutting seamed edges can be applicable to change cutter as the thorn cutter, the screw thread cutting plate is as being used for drill bit and/or being used for the cutting plate of reamer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19829924.9 | 1998-07-04 | ||
| DE19829924A DE19829924B4 (en) | 1998-07-04 | 1998-07-04 | Method for producing a cutting plate serving for machining metallic workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1308568A true CN1308568A (en) | 2001-08-15 |
Family
ID=7872977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99808227A Pending CN1308568A (en) | 1998-07-04 | 1999-07-02 | Method for producing a cutting plate for the chip-cutting Machining of metallic tools |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP1109648A1 (en) |
| JP (1) | JP2002519207A (en) |
| KR (1) | KR20010088781A (en) |
| CN (1) | CN1308568A (en) |
| AU (1) | AU4781399A (en) |
| BR (1) | BR9911816A (en) |
| CA (1) | CA2336843A1 (en) |
| CZ (1) | CZ200127A3 (en) |
| DE (1) | DE19829924B4 (en) |
| HU (1) | HU222000B1 (en) |
| IL (1) | IL140548A0 (en) |
| NO (1) | NO20010010D0 (en) |
| PL (1) | PL345188A1 (en) |
| SK (1) | SK42001A3 (en) |
| TR (1) | TR200003805T2 (en) |
| WO (1) | WO2000001508A1 (en) |
| YU (1) | YU83700A (en) |
| ZA (1) | ZA200100059B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304632C (en) * | 2002-09-17 | 2007-03-14 | 湘潭大学 | Cutting fool boron nitride composite coating layer and its preparation method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10034763A1 (en) * | 2000-07-18 | 2002-02-07 | Siegfried Goelz Gmbh & Co | Production of cutting bodies comprises melting a metal powder mixture containing hard material grains and forming the later cutting layer on a base body using a laser beam |
| DE10143301C1 (en) * | 2001-09-04 | 2003-05-08 | Leistritz Produktionstechik Gm | whirling head |
| CN100483011C (en) * | 2002-04-25 | 2009-04-29 | 林原 | Flexiblel ight-emitting unit and its making process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2703610B1 (en) * | 1993-04-06 | 1995-07-07 | Aob | Cutting insert and tool equipped with such inserts. |
| EP0718414A1 (en) * | 1994-12-19 | 1996-06-26 | Ist Innovations Technologiques De Frittage S.A. | Process for making cutting inserts containing diamond particles, and cutting insert made by said process for cutting or grinding tools |
| US5643523A (en) * | 1995-04-18 | 1997-07-01 | Saint-Gobain/Norton Industrial Ceramics Corp. | Method of manufacturing diamond-coated cutting tool inserts |
-
1998
- 1998-07-04 DE DE19829924A patent/DE19829924B4/en not_active Expired - Fee Related
-
1999
- 1999-07-02 WO PCT/EP1999/004608 patent/WO2000001508A1/en not_active Application Discontinuation
- 1999-07-02 YU YU83700A patent/YU83700A/en unknown
- 1999-07-02 EP EP99931243A patent/EP1109648A1/en not_active Withdrawn
- 1999-07-02 HU HU0103594A patent/HU222000B1/en not_active IP Right Cessation
- 1999-07-02 IL IL14054899A patent/IL140548A0/en unknown
- 1999-07-02 CA CA002336843A patent/CA2336843A1/en not_active Abandoned
- 1999-07-02 SK SK4-2001A patent/SK42001A3/en unknown
- 1999-07-02 TR TR2000/03805T patent/TR200003805T2/en unknown
- 1999-07-02 JP JP2000557938A patent/JP2002519207A/en active Pending
- 1999-07-02 AU AU47813/99A patent/AU4781399A/en not_active Abandoned
- 1999-07-02 KR KR1020017000046A patent/KR20010088781A/en not_active Application Discontinuation
- 1999-07-02 CN CN99808227A patent/CN1308568A/en active Pending
- 1999-07-02 PL PL99345188A patent/PL345188A1/en unknown
- 1999-07-02 BR BR9911816-5A patent/BR9911816A/en not_active Application Discontinuation
- 1999-07-02 CZ CZ200127A patent/CZ200127A3/en unknown
-
2001
- 2001-01-02 ZA ZA200100059A patent/ZA200100059B/en unknown
- 2001-01-02 NO NO20010010A patent/NO20010010D0/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304632C (en) * | 2002-09-17 | 2007-03-14 | 湘潭大学 | Cutting fool boron nitride composite coating layer and its preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| HU222000B1 (en) | 2003-03-28 |
| HUP0103594A2 (en) | 2002-01-28 |
| TR200003805T2 (en) | 2001-06-21 |
| YU83700A (en) | 2003-04-30 |
| IL140548A0 (en) | 2002-02-10 |
| NO20010010L (en) | 2001-01-02 |
| AU4781399A (en) | 2000-01-24 |
| SK42001A3 (en) | 2001-10-08 |
| DE19829924B4 (en) | 2005-01-27 |
| WO2000001508A1 (en) | 2000-01-13 |
| CA2336843A1 (en) | 2000-01-13 |
| JP2002519207A (en) | 2002-07-02 |
| HUP0103594A3 (en) | 2002-02-28 |
| ZA200100059B (en) | 2001-07-19 |
| PL345188A1 (en) | 2001-12-03 |
| BR9911816A (en) | 2001-03-27 |
| NO20010010D0 (en) | 2001-01-02 |
| DE19829924A1 (en) | 2000-01-05 |
| EP1109648A1 (en) | 2001-06-27 |
| CZ200127A3 (en) | 2001-09-12 |
| KR20010088781A (en) | 2001-09-28 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |