JPS6327209U - - Google Patents
Info
- Publication number
- JPS6327209U JPS6327209U JP11856886U JP11856886U JPS6327209U JP S6327209 U JPS6327209 U JP S6327209U JP 11856886 U JP11856886 U JP 11856886U JP 11856886 U JP11856886 U JP 11856886U JP S6327209 U JPS6327209 U JP S6327209U
- Authority
- JP
- Japan
- Prior art keywords
- cutting edge
- rake angle
- utility
- cutting
- carbide drill
- 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
Links
- 238000005452 bending Methods 0.000 claims description 2
- 239000002173 cutting fluid Substances 0.000 claims description 2
Landscapes
- Drilling Tools (AREA)
Description
図はいづれも本考案を説明するために用いたも
ので、第１図は側面図、第２図は正面図である。
１……工具シヤンク部、２……首部、３……溝
部、４……切れ刃部、５……切れ刃屈曲点、６…
…切れ刃部、７……マージン部、８……ランド部
、９……切屑排出溝、１０……切削液供給穴、１
１……切れ刃中心部、１２……切れ刃逃げ部。
The figures are used to explain the present invention; FIG. 1 is a side view and FIG. 2 is a front view. DESCRIPTION OF SYMBOLS 1... Tool shank part, 2... Neck part, 3... Groove part, 4... Cutting edge part, 5... Cutting edge bending point, 6...
...cutting edge part, 7...margin part, 8...land part, 9...chip discharge groove, 10...cutting fluid supply hole, 1
1... Cutting edge center, 12... Cutting edge relief.
Claims (1)
有するドリルにおいて、切れ刃４はラジアル方向
のスクイ角を負の１０〜１５°、アキシヤル方向
のスクイ角を０°とし、切刃６は切れ刃屈曲点５
の位置よりラジアル方向のスクイ角が０°となる
ことを特徴とする３枚刃超硬ドリル。 (2) 切れ刃中心部を構成するためのシンニング
は直線の三角錐とし、その大きさは直径の５〜１
０％の範囲とすることを特徴とする実用新案登録
請求の範囲第１項記載の超硬ドリル。 (3) シヤンク部１を除く首部２と切れ刃部３の
全長にわたつて３本の切削液供給穴を有し、かつ
それぞれが、先端部において開孔していることを
特徴とする実用新案登録請求の範囲第１項及び第
２項記載の超硬ドリル。[Claims for Utility Model Registration] (1) In a drill having three cutting edges and three straight chip discharge grooves, the cutting edge 4 has a rake angle of negative 10 to 15° in the radial direction and a rake angle of negative 10 to 15° in the axial direction. The rake angle is 0°, and the cutting edge 6 is at the cutting edge bending point 5.
A three-flute carbide drill characterized in that the rake angle in the radial direction becomes 0° from the position. (2) The thinning to form the center of the cutting edge is a straight triangular pyramid, and the size of the thinning is 5 to 1 of the diameter.
The carbide drill according to claim 1 of the utility model registration claim, characterized in that the range is 0%. (3) A utility model characterized in that it has three cutting fluid supply holes over the entire length of the neck portion 2 and cutting edge portion 3 excluding the shank portion 1, and each hole is open at the tip. A carbide drill according to registered claims 1 and 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11856886U JPS6327209U (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11856886U JPS6327209U (en) | 1986-07-31 | 1986-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6327209U true JPS6327209U (en) | 1988-02-23 |
Family
ID=31005142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11856886U Pending JPS6327209U (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6327209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068334A1 (en) * | 2000-03-15 | 2001-09-20 | Kabushiki Kaisha Miyanaga | Drill bit |
-
1986
- 1986-07-31 JP JP11856886U patent/JPS6327209U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001068334A1 (en) * | 2000-03-15 | 2001-09-20 | Kabushiki Kaisha Miyanaga | Drill bit |
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