JPS6226090B2 - - Google Patents
Info
- Publication number
- JPS6226090B2 JPS6226090B2 JP16257979A JP16257979A JPS6226090B2 JP S6226090 B2 JPS6226090 B2 JP S6226090B2 JP 16257979 A JP16257979 A JP 16257979A JP 16257979 A JP16257979 A JP 16257979A JP S6226090 B2 JPS6226090 B2 JP S6226090B2
- Authority
- JP
- Japan
- Prior art keywords
- head material
- head
- cutting blade
- rotary cutting
- angle
- 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
Links
- 239000000463 material Substances 0.000 claims description 26
- 238000003672 processing method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910001047 Hard ferrite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1272—Assembling or shaping of elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
【発明の詳細な説明】
本発明は磁気ヘツドのヘツド材料加工法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for processing head materials for magnetic heads.
従来、第１図に図示する如く磁気ヘツドを用い
るヘツド材料１を回転切削刃２で切削加工する場
合、ヘツド材料１が硬質のフエライト材であるた
め、その切削加工面にカケが生じ磁気ヘツドの寸
法精度及び特性上非常に悪影響を与えていた。 Conventionally, when a head material 1 using a magnetic head is cut with a rotary cutting blade 2 as shown in FIG. 1, since the head material 1 is a hard ferrite material, chips occur on the cut surface and damage the magnetic head. This had a very negative effect on dimensional accuracy and characteristics.
このカケの発生部位を詳細に検討した結果、第
２図に図示するように回転切削刃２がヘツド材料
１に対して下向きに進む進入側のＡ部においては
カケは発生せず、回転切削刃２がヘツド材料１に
対して上向きに進む退出側のＢ部において主に発
生していることが確認できた。また、ヘツド材料
の切削加工においては切削加工面のうち片面だけ
精度の高さが要求される場合が多い。 As a result of a detailed study of the location where this chipping occurs, as shown in FIG. It was confirmed that 2 was mainly generated in part B on the exit side that advances upward with respect to the head material 1. Furthermore, when cutting head materials, high precision is often required on only one of the cutting surfaces.
本発明は上述の点に鑑みなされたもので磁気ヘ
ツドのヘツド材料を回転切削加工するヘツド材料
加工法において、ヘツド材料の進行方向と回転切
削刃の回転軸とのなす角度を90゜よりθだけ傾け
てヘツド材料を切削加工することにより、ヘツド
材料の両加工面のうちカケを生じてほしくない面
に対しては回転切削刃の進入側のみが当接するよ
うにしたヘツド材料加工法を提供するものであ
る。 The present invention has been made in view of the above points, and in a head material processing method in which the head material of a magnetic head is rotary cut, the angle between the advancing direction of the head material and the rotation axis of the rotary cutting blade is changed by θ from 90°. To provide a head material processing method in which only the entry side of a rotary cutting blade comes into contact with a surface where chipping is not desired among both processing surfaces of the head material by cutting the head material at an angle. It is something.
以下、図面に従つて本発明の一実施例について
説明する。第３図はヘツド材料の切削加工法の説
明図であり、磁気ヘツドのヘツド材料（単結晶フ
エライト）１の進行方向Ｃと回転切削刃２の回転
軸３とのなす角度を90゜より少し傾けて、すなわ
ち90゜±θ（実線の位置或いは点線の位置）と
し、回転切削刃２を第１図の矢印方向と同一方向
に回転させて切削によつてできる２面のうちカケ
が生じてほしくない所望の面４に対しては回転切
削刃２が下向きに進む進入側Ａのみがヘツド材料
１に当接し、カケが生じてもよい面５に対しては
回転切削刃２が上向きに進む退出側Ｂのみがヘツ
ド材料１に当接するように回転切削刃２とヘツド
材料１の相対位置を保ちながらヘツド材料１をＣ
方向に移動させて切削する。 An embodiment of the present invention will be described below with reference to the drawings. Figure 3 is an explanatory diagram of the cutting method for the head material, and the angle between the traveling direction C of the head material (single crystal ferrite) 1 of the magnetic head and the rotation axis 3 of the rotary cutting blade 2 is tilted slightly more than 90 degrees. In other words, set the angle to 90°±θ (solid line position or dotted line position), and rotate the rotary cutting blade 2 in the same direction as the arrow direction in Fig. 1, so that there is no chipping between the two surfaces created by cutting. For the desired surface 4 where the rotary cutting blade 2 does not exist, only the entry side A in which the rotary cutting blade 2 advances downward contacts the head material 1, and for the surface 5 where chipping may occur, the exit side where the rotary cutting blade 2 advances upward. C
Cut by moving in the direction.
このような方法でヘツド材料１を加工すれば、
カケが生じてもよい面５にはある程度のカケが生
じるが所望の面４にはカケはほとんど生じないこ
とになる。 If head material 1 is processed in this way,
A certain amount of chipping occurs on the surface 5 where chipping is allowed, but almost no chipping occurs on the desired surface 4.
尚、回転軸３とヘツド材料１の進行方向Ｃとの
なす角度90゜±θにおいて、傾斜角θは第４図に
図示する如く刃輻をＷ、刃の直径をφＤとすると
θの最大値を対角線と底辺とのなす角度、すなわ
ち、θ＝tan-1（Ｗ／φＤ）としてθ＝０〜tan-1
（Ｗ／φＤ）の範囲内に設定することが望ましい。 In addition, at an angle of 90°±θ between the rotating shaft 3 and the direction of movement C of the head material 1, the inclination angle θ is the maximum value of θ, where W is the cutting edge and φD is the diameter of the cutting edge, as shown in Fig. 4. It is desirable to set the angle between the diagonal and the base, that is, θ=tan −1 (W/φD), within the range of θ=0 to tan −1 (W/φD).
上述のように本発明の加工法に依れば磁気ヘツ
ドのヘツド材料の切削加工において加工面のうち
所望の面の加工によるカケを大巾に減少すること
ができ精度の高い磁気ヘツドを得ることができ
る。 As described above, according to the processing method of the present invention, it is possible to greatly reduce chips caused by processing on a desired surface of the machined surface during cutting of the head material of a magnetic head, thereby obtaining a highly accurate magnetic head. Can be done.
第１図は従来のヘツド材料加工法を示す斜視
図、第２図はその側面図、第３図は本発明の一実
施例のヘツド材料加工法の説明図、第４図は回転
切削刃の取付け角度の説明図である。
主な図番の説明 １…ヘツド材料、２…回転切
削刃、３…回転軸。
Fig. 1 is a perspective view showing a conventional head material processing method, Fig. 2 is a side view thereof, Fig. 3 is an explanatory diagram of a head material processing method according to an embodiment of the present invention, and Fig. 4 is a diagram of a rotary cutting blade. It is an explanatory view of an attachment angle. Explanation of main drawing numbers 1... Head material, 2... Rotating cutting blade, 3... Rotating shaft.
Claims (1)
加工するヘツド材料加工法において、前記ヘツド
材料もしくは前記回転切削刃の進行方向と前記回
転切削刃の回転軸とのなす角度を90゜よりもθだ
け傾いた角度（90゜±θ）を保ちながらヘツド材
料を切削加工することを特徴としたヘツド材料加
工法。1. In a head material processing method in which the head material of a magnetic head is cut with a rotary cutting blade, the angle between the traveling direction of the head material or the rotary cutting blade and the rotation axis of the rotary cutting blade is less than 90° by θ. A head material processing method characterized by cutting the head material while maintaining an inclined angle (90°±θ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16257979A JPS5687223A (en) | 1979-12-13 | 1979-12-13 | Method of working head material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16257979A JPS5687223A (en) | 1979-12-13 | 1979-12-13 | Method of working head material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5687223A JPS5687223A (en) | 1981-07-15 |
| JPS6226090B2 true JPS6226090B2 (en) | 1987-06-06 |
Family
ID=15757262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16257979A Granted JPS5687223A (en) | 1979-12-13 | 1979-12-13 | Method of working head material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5687223A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6653336B2 (en) | 2016-01-29 | 2020-02-26 | 旭化成エレクトロニクス株式会社 | Angle detecting device and method |
-
1979
- 1979-12-13 JP JP16257979A patent/JPS5687223A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5687223A (en) | 1981-07-15 |
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