JPH04195706A - Manufacture of magnetic head - Google Patents
Manufacture of magnetic headInfo
- Publication number
- JPH04195706A JPH04195706A JP32190290A JP32190290A JPH04195706A JP H04195706 A JPH04195706 A JP H04195706A JP 32190290 A JP32190290 A JP 32190290A JP 32190290 A JP32190290 A JP 32190290A JP H04195706 A JPH04195706 A JP H04195706A
- Authority
- JP
- Japan
- Prior art keywords
- hard
- wire saw
- core block
- saw
- magnetic head
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 abstract description 13
- 238000007747 plating Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 becomes softer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/18—Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
- B23D61/185—Saw wires; Saw cables; Twisted saw strips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気ヘッドの製造方法に係り、さらに詳しくは
チッピングなどが生じることなく、切断面が平滑で高品
質の磁気ヘッドのヘッドチップを作製する方法に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method of manufacturing a magnetic head, and more specifically, to a method of manufacturing a magnetic head, and more specifically, a method for manufacturing a head chip of a magnetic head with a smooth cut surface and high quality without chipping. Regarding how to.
従来、磁気ヘッドのヘッドチップを作製する場合に、ヘ
ッドのコアブロックをマルチワイヤソーによりスライス
（薄片に切断）して複数のヘッドチップを作製していた
。このマルチワイヤソーは。Conventionally, when producing a head chip for a magnetic head, a plurality of head chips have been produced by slicing (cutting into thin pieces) a core block of the head using a multi-wire saw. This multi wire saw.
例えば、第２図に示すごとく、ピアノ線などの硬質の高
張力鋼線からなるワイヤソー１を、多溝滑車４に巻き、
ワイヤソー１を往復運動させ、このワイヤソー１に砥粒
液をかけながら被加工物（コアブロック）５を、下から
上へ持ち上げるように押し当てながら切断してヘッドチ
ップを作製する方法であるが、ワイヤソー１にピアノ線
という硬質の高張力鋼線を用いているため、スライスす
る硬脆材料からなる被加工物への当りが強く、チッピン
グが生じたり、また切断面が粗くなるという問題があっ
た。For example, as shown in FIG. 2, a wire saw 1 made of hard high-tensile steel wire, such as piano wire, is wound around a multi-groove pulley 4.
In this method, a head chip is produced by reciprocating the wire saw 1 and cutting the workpiece (core block) 5 while applying an abrasive solution to the wire saw 1 while pressing the workpiece (core block) 5 upward from the bottom. Because the wire saw 1 uses a hard, high-tensile steel wire called piano wire, it comes into contact with the workpiece made of hard and brittle material to be sliced strongly, causing problems such as chipping and rough cut surfaces. .
上述したごとく、従来の磁気ヘッドのコアブロックをマ
ルチワイヤソーでスライスしてヘッドチップを作製する
方法において、マルチワイヤソーに用いられているピア
ノ線は硬質の高張力鋼線であるため、スライスする硬脆
材料からなるコアブロックへの当りが強く、チッピング
が生じたり、また切断面が粗くなるという問題があった
。As mentioned above, in the conventional method of slicing the core block of a magnetic head with a multi-wire saw to create a head chip, the piano wire used in the multi-wire saw is a hard, high-strength steel wire, so it is hard and brittle to slice. There were problems in that the material hit the core block strongly, causing chipping and rough cut surfaces.
本発明の目的は、上記従来技術における問題点を解消す
るものであって、硬脆材料からなる磁気ヘッドのコアブ
ロックを、マルチワイヤソーを用いてスライスしヘッド
チップを作製する場合において、チッピングが生じるこ
となく、切断面が平滑で高品質のヘッドチップが得られ
る方法を提供することにある。An object of the present invention is to solve the above-mentioned problems in the prior art, and when a core block of a magnetic head made of a hard and brittle material is sliced using a multi-wire saw to produce a head chip, chipping occurs. The object of the present invention is to provide a method by which a head chip with a smooth cut surface and high quality can be obtained without causing any damage.
上記本発明の目的を達成するために、硬質の高張力鋼線
により構成されるマルチワイヤソーを用いてコアブロッ
クをスライスし、磁気ヘッドのヘッドチップを切断加工
する場合に、マルチワイヤソーに用いられるピアノ線な
どの硬質の高張力鋼線は、切断加工時にコアブロック等
の硬脆材料に対スる当りが強く、これがチッピングおよ
び切断面の粗さを生じさせる原因となることを知見し、
マルチワイヤソーを構成するピアノ線などの高張力鋼線
の表面に、硬脆材料に対する当りをやわらげる緩衝材と
して、軟質の銅メツキ等の被覆層を形成させるものであ
る。このように、マルチワイヤソーを構成する高張力鋼
線の表面に銅メツキ等の被覆層を形成させることにより
、被加工物に対する当り方が柔らかくなるのでチッピン
グが生じ難くなり、また銅メツキ等の被覆層の部分に砥
粒が埋め込まれ、ラップされるように切削加工されるた
め切断面が平滑になると同時に、切断抵抗が小さくなる
という効果が生じる。In order to achieve the above object of the present invention, a piano used in a multi-wire saw is used when slicing a core block and cutting a head chip of a magnetic head using a multi-wire saw made of hard high-tensile steel wire. It was discovered that hard high-tensile steel wire such as wire hits hard and brittle materials such as core blocks during cutting, and this causes chipping and roughness of the cut surface.
A soft coating layer such as copper plating is formed on the surface of high-tensile steel wire such as piano wire that constitutes a multi-wire saw as a buffer material to soften contact with hard and brittle materials. In this way, by forming a coating layer such as copper plating on the surface of the high tensile strength steel wire that makes up the multi-wire saw, the contact with the workpiece becomes softer, making chipping less likely to occur. Since abrasive grains are embedded in the layer and the cutting process is performed in a lapping manner, the cutting surface becomes smooth and at the same time the cutting resistance is reduced.
以下に本発明の実施例を挙げ、図面を用いてさらに詳細
に説明する。Examples of the present invention will be given below and will be explained in more detail using the drawings.
第１図に示すごとく、直径が約０．１〜０．３閣のピア
ノ線２の表面に、銅の電気メツキを施して厚さが約２０
〜５０−の銅メツキ層３を形成したワイヤソー１を作製
した。この銅メッキを施したワイヤソー１を用いて、第
２図に示すごとく。As shown in Figure 1, the surface of the piano wire 2 with a diameter of about 0.1 to 0.3 mm is electroplated with copper to a thickness of about 20 mm.
A wire saw 1 was manufactured in which a copper plating layer 3 of ~50- was formed. Using this copper-plated wire saw 1, as shown in FIG.
多数の溝を０．３〜０．６膿のピッチ間隔で形成した多
溝滑車４を３個、３角形状に配設して多溝滑車４の溝部
にワイヤソー１を巻き付けてマルチワイヤソーを構成し
た。Three multi-groove pulleys 4 each having a large number of grooves formed at pitch intervals of 0.3 to 0.6 mm are arranged in a triangular shape, and the wire saw 1 is wound around the grooves of the multi-groove pulleys 4 to form a multi-wire saw. did.
被加工物として、幅が約５■、高さが約４■、長さが約
１５閣の大きさのコアブロック５を用意し、多溝滑車４
を矢印の方向に往復回転させて７ マルチワイヤソー
を往復運動させ、その下部にコアブロック５を保持して
、砥粒液をかけながらコアブロック５をマルチワイヤソ
ーの下から上へ持ち上げるように押し当て、ワイヤソー
に荷重をかけながらコアブロック５をスライスして、３
０ないし４０個のヘッドチップを作製した。得られたヘ
ッドチップには、いずれもチッピングが生じることなく
、かつ切断面が平滑で、表面粗さを０．２−以下に低減
させることができ、高品質のヘッドチップを得ることが
できた。As a workpiece, a core block 5 with a width of about 5 cm, a height of about 4 cm, and a length of about 15 cm is prepared, and a multi-groove pulley 4 is prepared.
7. Move the multi-wire saw reciprocatingly in the direction of the arrow, hold the core block 5 at the bottom, and press the core block 5 upward from the bottom of the multi-wire saw while applying abrasive liquid. , slice the core block 5 while applying a load to the wire saw, 3
0 to 40 head chips were produced. The obtained head chips were free from chipping and had smooth cut surfaces, and the surface roughness could be reduced to 0.2- or less, making it possible to obtain high-quality head chips. .
以上詳細に説明したごとく、本発明の銅被覆を施したマ
ルチワイヤソーを用いることにより、硬脆材料であるコ
アブロックへの当りが柔らかくなり、かつマルチワイヤ
ソーの銅被覆部分に砥粒が埋め込まれてラップするよう
に切削加工されるため、ヘッドチップの切断面は滑らか
に研磨されて平滑で高品質のものが得られると同時に、
切断抵抗が著しく低減される効果がある。As explained in detail above, by using the copper-coated multi-wire saw of the present invention, the contact with the core block, which is a hard and brittle material, becomes softer, and abrasive grains are embedded in the copper-coated portion of the multi-wire saw. Since the cutting process is performed in a lap-like manner, the cut surface of the head tip is polished smoothly, resulting in a smooth and high quality product.
This has the effect of significantly reducing cutting resistance.
第１図は本発明の実施例において用いたワイヤソーの断
面形状の一例を示す模式図、第２図はマルチワイヤソー
の構成の一例を示す模式図である。
１・・・ワイヤソー ２・・・ピアノ線３・・・
銅メツキ層 ４・・・多溝滑車５・・・被加工物
（コアブロック）FIG. 1 is a schematic diagram showing an example of the cross-sectional shape of a wire saw used in an embodiment of the present invention, and FIG. 2 is a schematic diagram showing an example of the configuration of a multi-wire saw. 1... Wire saw 2... Piano wire 3...
Copper plating layer 4... Multi-groove pulley 5... Workpiece (core block)
Claims (1)
マルチワイヤソーを往復運動させ、砥粒液をかけながら
上記マルチワイヤソーに磁気ヘッドのコアブロックを押
し当て、該コアブロックをスライスして複数のヘッドチ
ップを作製する工程を含む磁気ヘッドの製造方法におい
て、上記マルチワイヤソーは、その表面に銅被覆を施し
たものを用いることを特徴とする磁気ヘッドの製造方法
。 ２、請求の範囲第１項において、マルチワイヤソーは、
ピアノ線材の表面に銅メッキを施したものであることを
特徴とする磁気ヘッドの製造方法。[Claims] 1. A multi-wire saw made up of a plurality of hard, high-tensile steel wires arranged in parallel is reciprocated, and a core block of a magnetic head is pressed against the multi-wire saw while applying abrasive liquid; A method for manufacturing a magnetic head including the step of slicing the core block to create a plurality of head chips, wherein the multi-wire saw is coated with copper on its surface. . 2. In claim 1, the multi-wire saw comprises:
A method for manufacturing a magnetic head, characterized in that the surface of a piano wire material is plated with copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32190290A JPH04195706A (en) | 1990-11-26 | 1990-11-26 | Manufacture of magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32190290A JPH04195706A (en) | 1990-11-26 | 1990-11-26 | Manufacture of magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04195706A true JPH04195706A (en) | 1992-07-15 |
Family
ID=18137682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32190290A Pending JPH04195706A (en) | 1990-11-26 | 1990-11-26 | Manufacture of magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04195706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6398623B1 (en) | 1999-04-12 | 2002-06-04 | Tdk Corporation | Processing method of device and processing method of slider |
-
1990
- 1990-11-26 JP JP32190290A patent/JPH04195706A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6398623B1 (en) | 1999-04-12 | 2002-06-04 | Tdk Corporation | Processing method of device and processing method of slider |
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