KR960004237B1 - Drawaway tip - Google Patents
Drawaway tip Download PDFInfo
- Publication number
- KR960004237B1 KR960004237B1 KR1019900016390A KR900016390A KR960004237B1 KR 960004237 B1 KR960004237 B1 KR 960004237B1 KR 1019900016390 A KR1019900016390 A KR 1019900016390A KR 900016390 A KR900016390 A KR 900016390A KR 960004237 B1 KR960004237 B1 KR 960004237B1
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- KR
- South Korea
- Prior art keywords
- chip
- cutting edge
- less
- sintered body
- high hardness
- 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.)
- Expired - Lifetime
Links
- 238000005520 cutting process Methods 0.000 claims description 42
- 230000003746 surface roughness Effects 0.000 claims description 13
- 238000005498 polishing Methods 0.000 description 11
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B23B27/22—Cutting tools with chip-breaking equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
내용 없음.No content.
Description
제 1 도 내지 제 2 도는 본 발명의 제 1 실시예를 나타내는 도면,1 to 2 show a first embodiment of the present invention,
제 1 도는 드로우어웨이팁의 평면도.1 is a plan view of the drawaway tip.
제 2 도는 제 1 도의 화살표(Ⅱ) 방향에서 본 도면.2 is a view seen from the direction of arrow II in FIG. 1;
제 3 도는 제 1 도의 화살표(Ⅱ) 방향에서 본 다른 예를 나타내는 도면.3 is a diagram showing another example seen from the direction of arrow II in FIG. 1;
제 4 도는 제 1 실시예의 드로우어웨이팁의 다른 예를 나타내는 평면도.4 is a plan view showing another example of the drawaway tip of the first embodiment.
제 5 도는 드로우어웨이팁의 또 다른 예를 나타내는 평면도.5 is a plan view showing still another example of the drawaway tip.
제 6 도 내지 제 7 도는 본 발명의 제 2 실시예를 나타내는 도면.6 to 7 show a second embodiment of the present invention.
제 7 도는 제 6 도의 화살표(Ⅶ)방향에서 본 도면.FIG. 7 is a view from the arrow direction of FIG. 6; FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 대금 2,11 : 절삭날부재,1: price 2,11: cutting edge member,
3, 12 : 고경도소결체 4,13 : 초고경도소경체3, 12: high hardness sintered body 4,13: ultra high hardness small body
5 : 칩크레이커 5q : 연마부5: chip cracker 5q: polishing unit
본 발명은 대금(台金)의 각부(角部)에 다이아몬드 등의 초고경도소결체 절삭 날부재를 배치한 드로우어웨이팁에 관한 것이다.This invention relates to the drawaway tip which arrange | positioned the ultra-high hardness sintered cutting edge member, such as a diamond, in the corner part of a base.
종래의 이러한 종류의 드로우어웨어팁은 칩의 배출성을 양호하게 하기 위하여 칩브레이커의 표면조도를 극히 양호하게 다듬질하고 있다. 그러나, 상기한 종래의 드로우어웨이팁에 있어서는, 칩브레이커에 의하여 칩이 와권(渦卷)형상으로 말아감겨지기 어렵다는 결점이 있다.This type of drawer wear tip in the prior art has extremely good surface roughness of the chipbreaker in order to improve chip evacuation. However, in the above conventional drawaway tip, there is a drawback that the chip is difficult to be wound in a spiral shape by the chip breaker.
상기한 결점을 해결하기 위하여, 여러 가지 실험을 반복한 결과, 초고경도소결체를 사용한 경우, 절삭성이 향상되어 절삭저항이 저하되며 또한, 칩브레이커의 표면조도가 극히 작게 형성되어 칩이 칩브레이커 위를 극히 원할하게 흐르며, 이 때문에 칩이 칩브레이커 상에서 말려감기지 않고 배출되어 버리는, 즉 커얼(curl)하기 어렵다는 결론을 얻었다.In order to solve the above-mentioned drawbacks, various experiments have been repeated. As a result, when ultra-high hardness sintered bodies are used, cutting properties are improved, cutting resistance is reduced, and the surface roughness of the chip breaker is extremely small, so that the chip is formed on the chip breaker. It flowed extremely smoothly, which led to the conclusion that the chip is not curled up on the chipbreaker and is ejected, that is, difficult to curl.
본 발명은, 상기한 결론에 의거하여 이루어진 것으로, 칩의 흐름에 저항을 부여함에 의하여 칩이 말아감겨지기 쉽게 한 것이다.The present invention has been made on the basis of the above conclusions, and makes the chip easier to be rolled up by giving resistance to the flow of the chip.
즉, 본 발명은, (1) 다각형으로 형성된 대금의 상면각부(角部)에 절삭날부재를 설치하여 이루어지며, 전기한 절삭부재는 초경합급 등의 고경도소결체와, 다이몬드나 입방정계 질화붕소 등을 주성분으로 하여 소결되는 초고경도소결체를 층형상으로 형성한 것으로 상기한 초고경도소결체를 전기한 대금의 상면에 노출시킨 상태에서 그 대금에 납땜되어 있고, 적어도 상기한 초고경도소결체의 상면에, 표면조도가 0.5S 이상 3.0S이하인 칩브레이커를 형성한 것이다.That is, the present invention is achieved by (1) providing a cutting edge member at an upper surface angle portion of a bill formed of a polygon, and the aforementioned cutting member includes a high hardness sintered body such as cemented carbide and diamond or cubic nitride An ultra-high hardness sintered body sintered with boron or the like as a main component is formed in a layered form, and the ultra-high hardness sintered body is soldered to the base in the state where the ultra-high hardness sintered body is exposed to the upper surface of the aforementioned bill, and at least on the upper surface of the ultra-high hardness sintered body. And chipbreakers having a surface roughness of 0.5S or more and 3.0S or less.
여기서, 칩브레이커의 표면조도를 0.5S 이상 3.0S이하로 설정하고 있는 것은, 0.5S 미만에서의, 칩브레이커를 미끄럼이동하는 칩의 미끄럼 저항이 작아져서 칩이 말아감겨지기 어렵게 되기 때문이며, 3.0S 이상에서는, 칩의 미끄럼저항이 커져서 칩의 배출성이 악화되기 때문이다.Here, the surface roughness of the chip breaker is set to 0.5S or more and 3.0S or less because the sliding resistance of the chip that slides the chipbreaker at less than 0.5S becomes small and the chip is hardly rolled up. This is because the slip resistance of the chip increases, which leads to deterioration of the chip dischargeability.
(2) 또, 칩브레이커의 표면조도는, 그 칩브레이커의 폭에 대하여 절삭날로부터 최소한 5%이상 50%이하의 폭부분을 0.8S이하로 형성하고, 그 이외의 부분을 0.5S 이상 3.0S이하로 형성하는 것이 바람직하다.(2) The surface roughness of the chipbreaker is at least 5% and 50% or less from the cutting edge with respect to the width of the chipbreaker, and the width of the chipbreaker is 0.8S or less, and the other portions are 0.5S or more and 3.0S. It is preferable to form below.
여기서, 표면조도를 0.8S 이하로 가공하여도 칩핑 등의 방지효과가 적기 때문이다.This is because even if the surface roughness is processed to 0.8S or less, there is little prevention effect such as chipping.
본 발명에 있어서는, 칩브레이커의 표면조도를 0.5S 이상 3.0S이하로 형성하고 있으므로, 칩이 칩브레이커에서 미끄럼저항을 받아서 말려감기도록 된다.In the present invention, since the surface roughness of the chip breaker is formed at 0.5 S or more and 3.0 S or less, the chip is subjected to a slip resistance at the chip breaker and rolled up.
또, 칩브레이커의 절삭날측 부분을 0.8S 이하로 형성된 경우에는, 절삭날에 용착이 발생하기 어렵게 됨과 아울러, 칩핑도 발생하기 어려우므로, 절삭날 모서리의 각도를 예리하게 형성할 수 있어, 절삭저항의 저감이 가능하게 된다.In addition, when the cutting edge side portion of the chip breaker is formed at 0.8 S or less, welding is less likely to occur on the cutting edge, and chipping is less likely to occur, so that the angle of the cutting edge edge can be sharply formed, resulting in cutting resistance. Can be reduced.
이하, 제 1 도 내지 제 7 도를 참조하여 본 발명의 실시예를 설명한다.Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 7.
[제 1 실시예][First Embodiment]
제 1 도, 제 2 도를 참조하여 본 발명의 제 1 실시예를 설명한다.A first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
도면에 있어서 부호(1)는, 강철이나 초경합금 등으로 형성된 삼각형상의 드로우어웨이팁의 대금(台金)으로, 이 대금(1)에는, 그 하나의 각부상면(角部上面)에 절삭날부재(2)를 설치하기 위한 절결(1a)이 형성되어 있다.In the drawing, reference numeral 1 denotes a price of a triangular drawaway tip formed of steel, cemented carbide, or the like, and on the price 1, a cutting edge member (on one upper face) is used. The notch 1a for providing 2) is formed.
절삭날부재(2)는, 텅스턴카아바이트(WC)를 주성분으로 하는 초경합금으로 이루어지는 경도소결체(3)와, 다이아몬드나 입방정계 질화붕소(CBN)등을 주성분으로 하는 초고경도소결체(4)를 상하로 층형상으로 형성한 것이다. 이 절삭날부재(2)는 그 초고경도소결체(4)의 상면에 대금(1)의 상면에 면이 일치되도록 노출되어 있고, 그 초고경도소결체(4)의 상면으로부터 대금(1)의 상면에 걸쳐서 칩브레이크(5)가 형성되어 있다.The cutting edge member 2 includes a hardness sintered body 3 composed of a cemented carbide including tungsten carbide bite (WC) as a main component, and an ultra-hardness sintered body 4 composed mainly of diamond or cubic boron nitride (CBN). It is formed in a layer shape up and down. The cutting edge member 2 is exposed on the upper surface of the ultra-high hardness sintered body 4 so that the surface coincides with the upper surface of the base 1, and from the upper surface of the ultra-high hardness sintered body 4 to the upper surface of the price 1 The chip brake 5 is formed over it.
이 칩브레이크(5)는, 절삭날(E)로부터 그 절삭날(E)을 따라 폭(A)의 범위로 평행하게 형성된 것으로, 절삭날(E)로부터 폭(B)부분이 연마되어서 연마부(5a)가 형성되어 있다. 연마부(5a)는, 표면조도가 0.8S 이하로 형성되어 있고, 그 이외의 부분은, 방전가공 혹은 연마에 의해서 0.5S 이상 3.0이하로 형성되어 있다. 단, 연마부(5a) 이외의 부분에 대해서는, 바람직하게도 0.5S 이상 2.0S이하의 범위가 좋다. 또 연마부(5a)의 폭(B)은, 칩브레이크(5)의 폭(A)의 적어도 5%이상 50%이하로 형성하는 것이 바람직하다.The chip brake 5 is formed parallel to the width A along the cutting edge E from the cutting edge E, and the width B portion is polished from the cutting edge E so as to be polished. (5a) is formed. The polishing part 5a is formed with surface roughness of 0.8 S or less, and the other part is formed in 0.5 S or more and 3.0 or less by electric discharge machining or grinding | polishing. However, about parts other than the grinding | polishing part 5a, Preferably, the range of 0.5S or more and 2.0S or less is good. The width B of the polishing portion 5a is preferably formed at least 5% or more and 50% or less of the width A of the chip brake 5.
다음에, 상기한 바와같이 구성된 드로우어웨이팁의 제조순서에 대하여 설명한다.Next, the manufacturing procedure of the drawaway tip comprised as mentioned above is demonstrated.
우선, 절삭날부재(2)는, 고경도소결체(3) 및 초고경도소결체(4)를 동시에 소결하는 과정에서 양자를 화학 결합시키고, 이것에 의햐여 어느 정도의 넓이를 보유하는 부재를 형성하여, 이 부재로부터 삼각형상으로 잘라내어서 형성한다.First, the cutting edge member 2 chemically bonds both in the process of simultaneously sintering the high hardness sintered body 3 and the ultra high hardness sintered body 4, thereby forming a member having a certain extent. It cuts out from this member to triangular shape, and forms it.
그리고, 이 삼각형상의 절삭날부재(2)를, 그 상면을 대금(1)의 상면에 대략 일체시켜서 그 공구본체(1)의 절결(1a)에 납땜한 후, 드로우어웨이팁의 상하면 및 둘레면을 연마한다.Then, the triangular cutting edge member 2 is approximately integrated with the upper surface of the base 1 and soldered to the notch 1a of the tool body 1, and then the upper and lower surfaces of the drawaway tip. Polish it.
그후, 칩브레이크(5)를 방전가공 또는 연마에 의하여 형성하고, 최후로 칩브레이크(5)의 절지날(ER)을 따라 0.8S이하의 연마부(5a)를 형성한다. 단, 칩브레이크(5)의 가공시에, 전체가 0.8S 이하로 되어 있으면, 별도로 연마부(5a)를 가공할 필요가 없다.Thereafter, the chip brake 5 is formed by electric discharge machining or polishing, and finally, the polishing portion 5a of 0.8 S or less is formed along the cutting edge ER of the chip brake 5. However, at the time of processing the chip brake 5, if the whole is 0.8 S or less, it is not necessary to process the polishing part 5a separately.
상기한 바와 같이, 구성된 드로우웨이팁에 의하면, 칩브레이크(5)의 절삭날(E)을 따라 표면조도가 0.8S 이하인 연마부(5a)를 형성하고 있으므로, 특히 알루미늄 등을 절삭할 경우에도 절삭날(E)에 용착이나 칩핑등의 발생을 억제할 수 있다. 더욱이, 절삭날(E)의 칩핑 등의 발생을 억제할 수 있으므므로 경사면과 여유면으로 이루어지는 각도, 즉 절삭날 모서리 각도를 예리하게 형성할 수 있다.As described above, according to the constructed drawway tip, the polishing portion 5a having a surface roughness of 0.8 S or less is formed along the cutting edge E of the chip brake 5, and therefore, even when cutting aluminum or the like, The generation | occurrence | production of welding, chipping, etc. can be suppressed on the blade E. Furthermore, since the occurrence of chipping or the like of the cutting edge E can be suppressed, the angle formed by the inclined surface and the clearance surface, that is, the cutting edge edge angle can be sharply formed.
그리고, 연마부(5a)의 폭(B)이 칩브레이크(5)의 폭(A)의 적어도 5%이상 50%이하로 형성되고, 연마부(5a) 이오의 칩브레이크(5)부분의 표면조도가 0.5S 이상 3.0S 이하로 형성되어 있으므로, 그 칩브레이크(5)의 표면에서 칩에 미끄럼저항을 부여하여, 그 칩을 와권형상으로 말아감을 수 있다.And the width B of the grinding | polishing part 5a is formed in at least 5% or more and 50% or less of the width A of the chip brake 5, and the surface of the chip brake 5 part of the grinding | polishing part 5a ion. Since roughness is formed in 0.5 S or more and 3.0 S or less, a slip resistance is given to a chip | tip on the surface of the chip brake 5, and the chip can be rolled up in a spiral winding shape.
또한, 상기한 실시예에 있어서는, 초경합금으로 이루어지는 고경도소결체(4)를 나타내었지만, 예를 들어 서멧(cermat) 등의 다른 소결합금을 사용해도 좋다. 단, 초경합금과 같이 납땜에 의하여 대금에 확실하게 고정할 수가 있으며, 또한, 초고경도소결체와 확실하게 화학결합할 수 있는 재료를 선택할 필요가 있다.In addition, in the above-mentioned embodiment, although the high hardness sintered compact 4 which consists of cemented carbides was shown, you may use other small bonds, such as cermat, for example. However, it is necessary to select a material that can be reliably fixed to the price by soldering, such as cemented carbide, and that can be reliably chemically bonded to the ultrahigh hardness sintered body.
또, 칩브레이크(5)의 단면형상으로서는, 제2도시에 도시하듯이, 경사각(rake angle)을 크게 취한 것 외에 제 3 도에 도시하듯이 드로우어웨이팁의 상면과 평행하게 형성된 것이어도 무방하다.In addition, the cross section shape of the chip brake 5 may be formed in parallel with the upper surface of the drawaway tip as shown in FIG. 3, in addition to having a large rake angle as shown in FIG. .
또, 칩브레이크(5)로서는, 제 4 도에 도시하듯이 절삭날(E)에 대하여 경사지게 형성된 것이나, 제 5 도에 도시하듯이 절삭날부재(2)에만 형성된 것이어도 무방하다.The chip brake 5 may be formed to be inclined with respect to the cutting edge E as shown in FIG. 4, or may be formed only on the cutting edge member 2 as shown in FIG.
[제 2 실시예]Second Embodiment
다음에 제 6 도 내지 제 7 도를 참조하여 본 발명의 제 2 실시예를 설명한다.Next, a second embodiment of the present invention will be described with reference to FIGS.
단, 제 1 도에 나타나는 드로우어웨이팁과 공통된 구성요소에는 동일한 부호를 붙여서 그 설명을 생략한다.However, components common to those of the drawaway tip shown in FIG. 1 are denoted by the same reference numerals and description thereof will be omitted.
이들 도면에 있어서, 절삭날부재(2)는, 초경합금으로 이루어지는 고경도소결체(12)와 초고경도소결체(13)를 층형상으로 형성한 것으로, 그 겹쳐지는 방향이 대금(1)의 중심에 대하여 반경방향에 층형상으로 형성되어 있다. 즉, 초고경도소결체(13)는, 고경도소결체(12)에 대하여 반경방향 바깥쪽에 위치함과 아울러, 드로우어웨이팁의 각부(角部) 외주면의 일부를 형성하고 있다. 그리고, 절삭날부재(11)의 상면에는, 초고경도소결체(13)로부터 고경도소결체(12)에 걸쳐서 칩브레이크(5)가 형성되어 있다.In these drawings, the cutting edge member 2 is formed by forming a high hardness sintered body 12 and an ultra high hardness sintered body 13 made of cemented carbide in a layered shape, and the overlapping direction thereof is with respect to the center of the bill 1. It is formed in a layered shape in the radial direction. That is, the ultra-high hardness sintered body 13 is located radially outward with respect to the high hardness sintered body 12, and forms a part of the outer peripheral surface of each part of the drawaway tip. On the upper surface of the cutting member 11, a chip brake 5 is formed from the ultra high hardness sintered body 13 to the high hardness sintered body 12.
상기한 절삭날부재(11)도 제 1 실시예에서 도시한 절삭날부재(11)와 마찬가지로 제조되어서 대금(1)에 납땜하게 된다.The cutting blade member 11 is also manufactured in the same manner as the cutting blade member 11 shown in the first embodiment and soldered to the price 1.
상기한 바와 같이 구성된 드로우어웨이팁에 있어서는, 각부의 선단에만 고사의 초고경도소결체(13)를 배치할 뿐이므로, 드로우어웨이팁의 코스트 저감을 도모할 수가 없다.In the drawaway tip configured as described above, since the ultra-high hardness sintered body 13 of the solid yarn is disposed only at the tip of each part, the cost of the drawaway tip cannot be reduced.
그 외는, 제 1 실시예와 마찬가지 효과를 나타낸다.Others exhibit the same effects as those of the first embodiment.
이상 설명한 바와 같이, 본 발명에 의하면, (1) 다각형으로 형성된 대금의 상면각부(角部)에 절삭날부재를 설치하여 이루어지며, 전기한 절삭날부재는, 초경합금 등의 고경도소결체와, 다이아몬드나 입방정계 질화붕소 등을 주성분으로 하여 소결되는 초고경도소결체를 상하로 층형상으로 형성한 것으로, 전기한 초고경도소결체를 전기한 대금의 상면에 노출시킨 상태에서 그 대금에 납땜되어 있고, 적어도 상기한 초고경도 소결체의 상면에, 표면조도가 0.5S 이상 3.0S 이하인 칩브레이크가 형성되어 있으므로, 칩에 칩브레이크 표면으로부터 미끄럼저항을 부여할 수가 있어, 이것에 의하여 칩을 와권형상으로 말아감을 수가 있다.As described above, according to the present invention, (1) a cutting blade member is provided in an upper surface corner portion of a bill formed in a polygon, and the cutting blade member described above includes a high hardness sintered body such as cemented carbide and diamond. Or a superhard hardness sintered body sintered with a cubic boron nitride or the like as a main component in the form of a layer up and down, and soldered to the bill in a state where the superhard hardness sintered body was exposed to the upper surface of the billed electricity. Since a chip brake having a surface roughness of 0.5 S or more and 3.0 S or less is formed on an upper surface of one ultrahard sintered compact, the chip can be provided with a sliding resistance from the surface of the chip brake, thereby rolling the chip into a spiral winding shape. .
(2) 또, 칩브레이크의 표면조도를, 그 칩브레이크의 폭에 대하여 절삭날로부터 적어도 5% 이상 50%이하의 폭부분에 대하여 0.8S 이하로 형성하며, 그 이외의 부분에 대하여 0.5S 이상 3.0S 이하로 형성한 경우에, 절삭날에 용착이나 칩핑 등의 발생을 억제할 수 있다. 더욱이, 칩핑 등의 발생이 어렵게 되므로, 경사면과 여유면 사이 각도, 즉, 절삭날의 모서리각도를 예리하게 형성할 수가 있으며, 이것에 의하여 절삭저항의 저감을 도모할 수가 있다는 이점이 있다. 또, 절삭날 쪽의 부분을 0.8S 이하의 표면조도로 형성하고 있으므로, 절삭날의 칩핑 등을 보다 안정적으로 방지할 수 있다는 현저한 작용효과를 나타낸다.(2) The surface roughness of the chip brake is formed at 0.8 S or less for the width portion of at least 5% and 50% or less from the cutting edge with respect to the width of the chip brake, and 0.5S or more for the other portions. When formed at 3.0 S or less, generation | occurrence | production of welding, chipping, etc. can be suppressed on a cutting edge. In addition, since chipping is difficult to occur, the angle between the inclined surface and the allowable surface, that is, the corner angle of the cutting edge can be sharply formed, whereby the cutting resistance can be reduced. Moreover, since the part of the cutting edge side is formed with the surface roughness of 0.8 S or less, it shows remarkable effect that the chipping of a cutting edge etc. can be prevented more stably.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2-46689 | 1990-02-27 | ||
JP4668990 | 1990-02-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910015350A KR910015350A (en) | 1991-09-30 |
KR960004237B1 true KR960004237B1 (en) | 1996-03-28 |
Family
ID=12754347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900016390A Expired - Lifetime KR960004237B1 (en) | 1990-02-27 | 1990-10-15 | Drawaway tip |
Country Status (2)
Country | Link |
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JP (2) | JP2623987B2 (en) |
KR (1) | KR960004237B1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6050752A (en) * | 1999-03-19 | 2000-04-18 | Kennametal Inc. | Cutting insert |
JP4704212B2 (en) | 2004-01-14 | 2011-06-15 | 住友電工ハードメタル株式会社 | Throwaway tip |
JP5004487B2 (en) * | 2006-03-29 | 2012-08-22 | 京セラ株式会社 | Cutting insert and cutting tool equipped with the same |
WO2016035490A1 (en) | 2014-09-05 | 2016-03-10 | 住友電工ハードメタル株式会社 | Throwaway tip |
JP2017094467A (en) | 2015-11-26 | 2017-06-01 | 住友電工ハードメタル株式会社 | Rotating tool |
HUE039587T2 (en) * | 2016-05-27 | 2019-01-28 | Untha Shredding Tech Gmbh | Knife for a shredding machine |
US10898958B2 (en) * | 2016-08-29 | 2021-01-26 | Kyocera Corporation | Cutting insert, cutting tool, and method for manufacturing machined product |
JP2018183829A (en) * | 2017-04-25 | 2018-11-22 | 株式会社タンガロイ | Cutting insert and manufacturing method of the same |
WO2019087844A1 (en) * | 2017-10-30 | 2019-05-09 | 京セラ株式会社 | Cutting insert, cutting tool, and method of manufacturing cut workpiece |
-
1990
- 1990-10-15 KR KR1019900016390A patent/KR960004237B1/en not_active Expired - Lifetime
-
1991
- 1991-02-27 JP JP3033243A patent/JP2623987B2/en not_active Expired - Lifetime
- 1991-02-27 JP JP3033245A patent/JP2623989B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH04217406A (en) | 1992-08-07 |
KR910015350A (en) | 1991-09-30 |
JP2623989B2 (en) | 1997-06-25 |
JP2623987B2 (en) | 1997-06-25 |
JPH04217404A (en) | 1992-08-07 |
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