JPH01216706A - Small-diameter drill for boring - Google Patents
Small-diameter drill for boringInfo
- Publication number
- JPH01216706A JPH01216706A JP4149688A JP4149688A JPH01216706A JP H01216706 A JPH01216706 A JP H01216706A JP 4149688 A JP4149688 A JP 4149688A JP 4149688 A JP4149688 A JP 4149688A JP H01216706 A JPH01216706 A JP H01216706A
- Authority
- JP
- Japan
- Prior art keywords
- drill
- small
- diameter
- diameter drill
- gold plating
- 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
Landscapes
- Drilling Tools (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、紡糸口金用ステンレス板に紡糸孔を孔明けす
る為の直径１．０鴎以下の小径ドリルの改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a small diameter drill having a diameter of 1.0 mm or less for drilling spinning holes in a stainless steel plate for a spinneret.
（従来の技術とその問題点）
通常、紡糸口金用のステンレス板に紡糸孔を孔明けする
には、ＳＫＨ材のツイストドリルで切削油をかけながら
孔明は加工している。(Prior art and its problems) Normally, to drill a spinning hole in a stainless steel plate for a spinneret, a twist drill made of SKH material is used while applying cutting oil.
ところで、斯かる方法で、例えば直径０．５鵬で深さ５
ａｍまで孔明は加工すると、切削油が入りさらになくな
ってドリル先端が焼き付いたり、また切屑が排出しにく
くなってドリルが折れ易くなる等の問題点があった。By the way, with this method, for example, a diameter of 0.5 and a depth of 5
When a hole is machined up to AM, there are problems such as cutting oil entering and running out, causing the tip of the drill to seize up, and making it difficult to remove chips and making the drill more likely to break.
（発明の目的）
本発明は、上記問題点を解決すべくなされたもので、直
径０．５閣以下で深さ５ｍ以上孔明は加工してもドリル
先端が焼き付（ことが無く、またドリルが折れに＜（シ
た孔明は用小径ドリルを提供することを目的とするもの
である。(Purpose of the Invention) The present invention has been made to solve the above-mentioned problems. Even when drilling a hole with a diameter of 0.5 mm or less and a depth of 5 m or more, the tip of the drill does not seize (seize), and the drill The purpose of this drill is to provide a small diameter drill for use.
（問題点を解決するための手段）
上記問題点を解決するための本発明の孔明は用小径ドリ
ルは、直径１．０ｍｍ以下の孔明は用小径ドリルに於い
て、その切刃部に０．２ａａｍ以下の金めつきが施され
ていることを特徴とするものである。(Means for Solving the Problems) To solve the above-mentioned problems, the present invention provides a small-diameter drill for drilling holes with a diameter of 1.0 mm or less. It is characterized by being plated with gold of 2 aam or less.
（作用）
本発明の孔明は用小径ドリルは、上述の如く切刃部に金
めつきが施されているので、切削時ドリル先端が焼き付
くことが無く、また切屑が金めつきの潤滑作用により抵
抗無く切屑排出用の溝部を通って外部に円滑に排出され
、ドリルが折れにくくなる。(Function) The small-diameter drill for drilling of the present invention has gold plating on the cutting edge as described above, so the tip of the drill does not seize during cutting, and chips are prevented by the lubricating action of the gold plating. The chips are smoothly discharged to the outside through the groove for discharging chips, making the drill less likely to break.
（実施例）
本発明の孔明は用小径ドリルの゛一実施例について説明
すると、直径０．５ａｍ、長さ３０１ｍのＳＫＨ材より
成るツイストドリルの長さ５ｍｍの切刃部に０．１μｍ
の金めつきが施されている。(Example) To explain one example of a small diameter drill for drilling of the present invention, a twist drill made of SKH material with a diameter of 0.5 am and a length of 301 m has a cutting edge of 0.1 μm on a 5 mm long cutting edge.
It is decorated with gold plating.
この実施例の孔明は用小径ドリルと、切刃部に金めつき
の施されていない実施例と同一寸法の従来例の孔明は用
小径ドリルとにより、夫々直径３００閤、板厚５０Ｉｆ
ｌｌの円形ステンレス板に、３０，０００個の紡糸孔を
孔明は加工した処、従来例の孔明は用小径ドリルは、紡
糸孔５０個で焼付きにより交換し、孔明は加工終了まで
に１８７本の折損が発生したが、実施例の孔明は用小径
ドリルは、紡糸孔１００個で金めつきの消耗により交換
し、孔明は加工終了までに１８本しか折損の発生を見な
かった。これはひとえに実施例の孔明は用小径ドリルが
切刃部に金めつきが施されている為、焼き付きが防止さ
れ、切屑が金めつきの潤滑作用により円滑に排出されて
、折損しにくくなるからに他ならない。The holes in this example were made using a small-diameter drill, and the holes in the conventional example, which had the same dimensions as the example without gold plating on the cutting edge, were made using a small-diameter drill with a diameter of 300 mm and a plate thickness of 50 If.
Komei machined 30,000 spinning holes on a circular stainless steel plate.The conventional small-diameter drill used for Komei had to be replaced due to seizure after 50 spinning holes, and 187 holes were machined by the time the process was completed. However, Komei's small-diameter drill in the example was replaced due to wear of the gold plating after 100 spinning holes, and only 18 Komei drills were broken by the end of processing. This is because the small-diameter drill used in this example has gold plating on the cutting edge, which prevents seizing and allows chips to be smoothly discharged due to the lubrication effect of the gold plating, making it less likely to break. Nothing but.
尚、上記実施例は金めつきが１μｍ施されている場合で
あるが、２μｍあればドリル１本による紡糸孔の孔明は
個数を増加できる。しかし、それ以上増えてもドリルの
折損数は減少せず、また切屑の排出がそれ以上の格別に
良好となるわけでもないので、金めつきはコスト的にも
２μｍ以下が良い。In the above example, the gold plating is applied to a thickness of 1 μm, but if the gold plating is 2 μm, the number of spinning holes can be increased with one drill. However, if the number of drill bits is increased further than that, the number of broken drills will not decrease, and the evacuation of chips will not be particularly improved. Therefore, from the viewpoint of cost, the gold plating should preferably be 2 μm or less.
（発明の効果）
以上の説明で判るように本発明の孔明は用小径ドリルは
、切刃・部に金めつきが施されているので、直径０．５
閣以下、長さ５ｍｎ＋以上の紡糸孔を孔明けしても焼き
付くことが無く、切屑が金めつきの潤滑作用により円滑
に排出されて折損しにくくなって、著しく寿命が増長す
るという効果を奏する。(Effects of the Invention) As can be seen from the above explanation, the small diameter drill for drilling according to the present invention has a diameter of 0.5 mm because the cutting edge is gold-plated.
Even if a spinning hole with a length of 5 mm+ or more is drilled, it will not seize, and chips will be smoothly discharged due to the lubricating action of the gold plating, making it difficult to break, resulting in a significantly longer life.
出願人 田中貴金属工業株式会社Applicant: Tanaka Kikinzoku Kogyo Co., Ltd.
Claims (1)
その切刃部に０．２μｍ以下の金めっきが施されている
ことを特徴とする孔明け用小径ドリル。For small diameter drills for drilling holes with a diameter of 1.0 mm or less,
A small diameter drill for drilling, characterized in that its cutting edge is plated with gold of 0.2 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4149688A JPH01216706A (en) | 1988-02-24 | 1988-02-24 | Small-diameter drill for boring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4149688A JPH01216706A (en) | 1988-02-24 | 1988-02-24 | Small-diameter drill for boring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01216706A true JPH01216706A (en) | 1989-08-30 |
Family
ID=12609963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4149688A Pending JPH01216706A (en) | 1988-02-24 | 1988-02-24 | Small-diameter drill for boring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01216706A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5599144A (en) * | 1995-06-23 | 1997-02-04 | International Business Machines Corporation | Low friction flute tungsten carbon microdrill |
| US6213692B1 (en) * | 1995-03-30 | 2001-04-10 | Vilab Ag | Cutting tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4972777A (en) * | 1972-11-16 | 1974-07-13 |
-
1988
- 1988-02-24 JP JP4149688A patent/JPH01216706A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4972777A (en) * | 1972-11-16 | 1974-07-13 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6213692B1 (en) * | 1995-03-30 | 2001-04-10 | Vilab Ag | Cutting tool |
| US5599144A (en) * | 1995-06-23 | 1997-02-04 | International Business Machines Corporation | Low friction flute tungsten carbon microdrill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6113321A (en) | Roll-forged drill bit | |
| US4826365A (en) | Material-working tools and method for lubricating | |
| DE181841T1 (en) | DRILL. | |
| JP4415485B2 (en) | Small drill | |
| US7922428B2 (en) | Coated bore cutting tools | |
| JPH01216706A (en) | Small-diameter drill for boring | |
| JP3461538B2 (en) | Super hard drill | |
| SU1276446A2 (en) | Twist drill | |
| JP2004141970A (en) | Drill | |
| JPS5943246B2 (en) | Surface-coated cemented carbide miniature drill | |
| JP2564700B2 (en) | Hard film coated drill | |
| JPH0355104A (en) | Drill | |
| JPS6021135Y2 (en) | Circular saw with oil hole | |
| CN213869863U (en) | A large hole drill | |
| JP2005246577A (en) | Deburring drill | |
| CN214365891U (en) | Drill bit suitable for hard rock | |
| CN1064105C (en) | Stainless steel padlock and its making process | |
| JPH01306112A (en) | Small diameter drill for machining printedboard | |
| JP2001170810A (en) | Twist drill | |
| Trost | Carbide Drills Produce Uniform Holes and Improve Tool Life | |
| JP2000015512A (en) | Coating twist drill | |
| JPS63267108A (en) | Drill for deep hole drilling | |
| JP2001096413A (en) | Twist drill | |
| JPH04164559A (en) | Ultrasonic drilling tool | |
| JPH0627284Y2 (en) | Compound drill |