JPS6330420U - - Google Patents
Info
- Publication number
- JPS6330420U JPS6330420U JP12025186U JP12025186U JPS6330420U JP S6330420 U JPS6330420 U JP S6330420U JP 12025186 U JP12025186 U JP 12025186U JP 12025186 U JP12025186 U JP 12025186U JP S6330420 U JPS6330420 U JP S6330420U
- Authority
- JP
- Japan
- Prior art keywords
- end mill
- cutting edge
- twisted
- main cutting
- blade
- 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
- 230000001154 acute effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
Description
第１図は本考案の実施例を示すニツク付きエン
ドミルの要部正面図、第２図はニツクの配列を示
す説明図、第３図はニツク加工の形態を示す要部
正面図、第４図は本実施例のニツク付きエンドミ
ルの切削刃の一部断面形状を示す横断断面図、第
５図はニツク及び切削刃の拡大縦断断面図、第６
図は切削状態を示す説明図、第７図及び第８図は
従来のニツク付きエンドミルのニツクの加工形態
を示す要部正面図、第９図は従来のニツク付きエ
ンドミルによる切削状態を示す説明図である。
２０…ニツク付きエンドミル、２１…ねじれ刃
、２２…ニツク、２３…ねじれ溝、２４…主切削
刃コーナー、２９…刃先部、α…フランク角。
Fig. 1 is a front view of the essential parts of an end mill with nicks showing an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the arrangement of the nicks, Fig. 3 is a front view of the essential parts showing the form of nick machining, and Fig. 4. 5 is a transverse cross-sectional view showing a partial cross-sectional shape of the cutting blade of the end mill with a punch according to this embodiment, FIG. 5 is an enlarged longitudinal cross-sectional view of the punch and the cutting blade, and FIG.
The figure is an explanatory diagram showing the cutting state, FIGS. 7 and 8 are front views of main parts showing the machining form of the nicks of a conventional end mill with nicks, and FIG. 9 is an explanatory diagram showing the cutting state by the conventional end mill with nicks. It is. 20...End mill with a knurl, 21...Twisted blade, 22...Nick, 23...Twisted groove, 24...Main cutting blade corner, 29...Blade tip, α...Flank angle.
Claims (1)
刃には多数のニツクがエンドミルの回転軸に対し
垂直方向に刻設されたニツク付きエンドミルにお
いて 前記ニツクとねじれ溝とが交差してできるコー
ナーのうち鋭角側が主切削刃となるようニツクを
配設し、該主切削刃に３０°以上のフランク角を
設けるとともにサイド逃げ角を形成し、かつ主切
削刃の刃先部側縁に前記回転軸に対して垂直方向
に二番落量を有する直線またはアール面取りを施
したことを特徴とするニツク付きエンドミル。[Claims for Utility Model Registration] An end mill with a nick, which has a plurality of twisted blades and a twisted groove, and each twisted blade has a large number of nicks carved in a direction perpendicular to the rotation axis of the end mill. The cutting edge is arranged so that the acute angle side of the corner formed by intersecting the two becomes the main cutting edge, and the main cutting edge is provided with a flank angle of 30° or more, a side relief angle is formed, and the cutting edge of the main cutting blade is 1. An end mill with a knurled end mill, characterized in that a side edge of the cutter is chamfered in a straight line or in a radius having a second drop in a direction perpendicular to the rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025186U JPS6330420U (en) | 1986-08-04 | 1986-08-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025186U JPS6330420U (en) | 1986-08-04 | 1986-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6330420U true JPS6330420U (en) | 1988-02-27 |
Family
ID=31008393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12025186U Pending JPS6330420U (en) | 1986-08-04 | 1986-08-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6330420U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531107U (en) * | 1976-06-24 | 1978-01-07 |
-
1986
- 1986-08-04 JP JP12025186U patent/JPS6330420U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531107U (en) * | 1976-06-24 | 1978-01-07 |
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