JPH0660313A - Magnetic head processing method and magnetic head cutting dicing saw - Google Patents

Magnetic head processing method and magnetic head cutting dicing saw

Info

Publication number
JPH0660313A
JPH0660313A JP21614492A JP21614492A JPH0660313A JP H0660313 A JPH0660313 A JP H0660313A JP 21614492 A JP21614492 A JP 21614492A JP 21614492 A JP21614492 A JP 21614492A JP H0660313 A JPH0660313 A JP H0660313A
Authority
JP
Japan
Prior art keywords
magnetic head
base material
mounting table
dicer
respect
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.)
Withdrawn
Application number
JP21614492A
Other languages
Japanese (ja)
Inventor
Masaru Mizuochi
優 水落
Fusao Hoshino
房雄 星野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Seimitsu Co Ltd
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Tokyo Seimitsu Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd, Tokyo Seimitsu Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP21614492A priority Critical patent/JPH0660313A/en
Publication of JPH0660313A publication Critical patent/JPH0660313A/en
Withdrawn legal-status Critical Current

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  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To improve the production efficiency of a dicing saw by changing the range of reciprocation along the angle, at which a base material like a bar is held, at the time of cutting out a magnetic head from the base material by the dicing saw. CONSTITUTION:A grinding blade 11 is supported by supporting parts 111 and 112, and base material of magnetic head as material to be worked is arranged with the inclination of an azimuth angle on a placing base 12 and are held. The placing base can be moved in directions of three axes to the grinding blade 11 by a moving mechanism 13. The moving mechanism 13 calculates its own locus in accordance with the work instruction inputted from the external by a control part 14, and a driving signal is so outputted that it is moved along this locus. Thus, the production efficiency of the rotary head cutting dicing saw is improved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、回転する砥石刃で溝加
工又は切断加工を行なう加工方法及びダイサに関し、特
にVTR,HDD,FDD等の磁気ヘッドを母材から切
り出す磁気ヘッド加工方法及び磁気ヘッド切り出し用ダ
イサに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing method and a dicer for performing a groove processing or a cutting processing with a rotating grindstone blade, and particularly to a magnetic head processing method and a magnetic head for cutting a magnetic head such as VTR, HDD, FDD from a base material. The present invention relates to a head cutting dicer.

【0002】[0002]

【従来の技術】回転する砥石刃で精密な溝加工や切断加
工を行なうダイサと呼ばれる加工装置が利用されてい
る。この代表的な例が、半導体ウエアよりチップを切り
出すための溝加工を行なうダイシングソーである。図4
はダイサの基本的な全体構成を示す斜視図である。
2. Description of the Related Art A processing device called a dicer is used which performs precise groove processing and cutting processing with a rotating grindstone blade. A typical example of this is a dicing saw that performs groove processing for cutting chips from semiconductor wear. Figure 4
FIG. 3 is a perspective view showing a basic overall structure of a dicer.

【0003】図4において、41は砥石刃であり、41
1と412は砥石刃41の支持部である。42は被加工
物400を保持する載置台である。載置台42を砥石刃
41に対して移動させる機構がある。図では載置台42
がX軸方向に移動し、その移動機構全体が第2移動台4
22に保持されている。第2移動台422はY軸方向に
移動可能である。通常は更にZ軸方向の移動機構も設け
られており、載置台42は砥石刃41に対して垂直な3
軸方向に移動可能である。
In FIG. 4, 41 is a grindstone blade, and 41
Reference numerals 1 and 412 are support portions of the grindstone blade 41. Reference numeral 42 is a mounting table that holds the workpiece 400. There is a mechanism for moving the mounting table 42 with respect to the grindstone blade 41. In the figure, the mounting table 42
Moves in the X-axis direction, and the entire moving mechanism moves to the second moving table 4
It is held at 22. The second moving table 422 is movable in the Y axis direction. Normally, a moving mechanism in the Z-axis direction is also provided, and the mounting table 42 is a unit that is perpendicular to the grindstone blade 41
It is movable in the axial direction.

【0004】図4では載置台42が砥石刃41に対して
移動するように示したが、砥石刃41の方が移動する場
合も、両方が移動可能のものもある。VTR等の回転シ
リンダには回転ヘッドと呼ばれる部品が使用される。図
5はVTR用回転シリンダを示す図であり、501が上
ローラ、502が下ローラ、503が回転ヘッド、50
4が回転軸、505がテープである。回転ヘッド503
は磁気ヘッドであり、走行するテープ505に対して高
速に回転することにより、テープ上に図6に示すような
トラック606と呼ばれる接触部分の軌跡が形成され、
その部分に対して磁気記録及び読み出しを行なう。
In FIG. 4, the mounting table 42 is shown to move with respect to the grindstone blade 41. However, there are cases where both the grindstone blade 41 and the grindstone blade 41 are movable. Parts called rotary heads are used for rotary cylinders such as VTRs. FIG. 5 is a view showing a VTR rotary cylinder, in which 501 is an upper roller, 502 is a lower roller, 503 is a rotary head, and 50 is a rotary head.
4 is a rotary shaft, and 505 is a tape. Rotating head 503
Is a magnetic head, which rotates at a high speed with respect to the running tape 505 to form a locus of a contact portion called a track 606 on the tape, as shown in FIG.
Magnetic recording and reading are performed on that portion.

【0005】上記のようなVTR等の記録及び再生では
隣接するトラックに記録される情報を識別するため、図
6に示すように隣接するトラック間で磁気記録の方向に
±20°程度変えている。この角度はアジマス角とい
う。磁気ヘッドは、縦方向と横方向が2mmから3mm程度
で厚みが0.2mmから0.3mm程度の大きさであり、精
密な加工精度が要求される。磁気ヘッドの製作は、図7
に示すように磁気ヘッドの断面を有する棒状の母材から
薄い板状の磁気ヘッドを切り出すことによって行ってい
る。この加工にダイサが使用される。
In the recording and reproducing of the VTR or the like as described above, in order to identify the information recorded in the adjacent tracks, the magnetic recording direction is changed by about ± 20 ° between the adjacent tracks as shown in FIG. . This angle is called the azimuth angle. The magnetic head has a size of about 2 mm to 3 mm in the lengthwise direction and the widthwise direction and a thickness of about 0.2 mm to 0.3 mm, and requires a precise processing accuracy. The magnetic head is manufactured as shown in Fig. 7.
As shown in FIG. 3, a thin plate-shaped magnetic head is cut out from a rod-shaped base material having a cross section of the magnetic head. A dicer is used for this processing.

【0006】切り出された磁気ヘッドは図5に示すよう
な形で回転シリンダに取り付けられるが、母材710の
長軸に対して垂直方向で切り出した時には、磁気記録の
方向は回転シリンダの軸に垂直な方向になる。しかし前
述のようにテープへの磁気記録の方向はトラックの方向
に対してアジマス角だけ傾いていることが必要である。
そのため図7に示すように母材からの磁気ヘッドの切り
出しは、母材の長軸に対してアジマス角だけ傾いた方向
で行なう。
The cut out magnetic head is attached to the rotary cylinder in the form as shown in FIG. 5, but when cut out in the direction perpendicular to the long axis of the base material 710, the direction of magnetic recording is the axis of the rotary cylinder. In the vertical direction. However, as described above, the direction of magnetic recording on the tape needs to be inclined by the azimuth angle with respect to the track direction.
Therefore, as shown in FIG. 7, the magnetic head is cut out from the base material in a direction inclined by the azimuth angle with respect to the long axis of the base material.

【0007】[0007]

【発明が解決しようとする課題】磁気ヘッドの実際の加
工は、加工作業の効率を向上させるため図8に示すよう
に複数の母材810を平行に保持した上でダイサを往復
移動させて行っている。母材はダイサの載置台、又は加
工用補助板に接着されており、加工終了後取り外してい
る。
In order to improve the efficiency of the machining operation, the magnetic head is actually machined by holding a plurality of base materials 810 in parallel and reciprocating the dicer as shown in FIG. ing. The base material is adhered to the mounting table of the dicer or a processing auxiliary plate, and is removed after the processing is completed.

【0008】上記の加工は自動化されており、載置台が
所定のピッチで変化しながら往復移動を繰り返すことで
行っている。この往復移動は、図8に示すように往復移
動の範囲を定め、端まで、移動すると所定ピッチシフト
することを繰り返している。この加工は精密な加工精度
が要求されるため加工速度は1mm/S程度であり、長さ
が50mmから100mm程度の母材を数十本で並べて加工
する時にはかなりの加工時間を要している。そのため加
工時間を短縮して生産効率を向上することが求められて
いる。
The above processing is automated and is performed by repeating the reciprocating movement of the mounting table while changing the mounting table at a predetermined pitch. This reciprocating movement defines a reciprocating movement range as shown in FIG. 8, and repeats a predetermined pitch shift when the movement reaches the end. Since this processing requires precise processing accuracy, the processing speed is about 1 mm / S, and a considerable processing time is required when arranging several dozen base materials with a length of about 50 mm to 100 mm in parallel. . Therefore, it is required to shorten the processing time and improve the production efficiency.

【0009】本発明は、磁気ヘッド切り出し用ダイサの
生産効率を向上することを目的とする。
An object of the present invention is to improve the production efficiency of a dicer for cutting out a magnetic head.

【0010】[0010]

【課題を解決するための手段】本発明の磁気ヘッド加工
方法は、磁気ヘッドを棒状の母材からダイサで切り出す
磁気ヘッド加工方法であって、母材をダイサの載置台の
移動方向に対して長軸が斜めになるように載置台に保持
する工程と、回転するダイサの砥石刃に対して載置台を
繰り返し所定ピッチ変化させながら往復移動させる工程
とを備えるが、上記目的を達成するため、往復移動の範
囲が母材の保持される角度に沿って変化される。
A magnetic head processing method of the present invention is a magnetic head processing method of cutting a magnetic head from a rod-shaped base material with a dicer, and the base material is moved in a moving direction of a mounting table of the dicer. The step of holding the mounting table so that the long axis is inclined, and the step of reciprocating while moving the mounting table repeatedly with respect to the grindstone blade of the rotating dicer while changing the predetermined pitch, in order to achieve the above object, The range of reciprocating movement is varied along the angle at which the base material is held.

【0011】本発明の回転ヘッド切り出し用ダイサは、
砥石刃と、被加工物を保持する載置と、砥石刃に対する
載置台の相対位置を変化させる移動機構と、移動機構を
制御する制御部とを備え、棒状の磁気ヘッドの母材を移
動機構の移動方向に対して長軸が斜めになるように載置
台上に保持した上で、回転する砥石刃に対して載置台の
往復移動を繰り返して磁気ヘッドの切り出しを行なうも
のである。そして上記目的を達成するため、制御部は移
動機構による往復移動の範囲を母材が移動方向に対して
保持される角度に沿って変化させることを特徴とする。
The rotary head cutting dicer of the present invention comprises:
A whetstone blade, a mount for holding a workpiece, a moving mechanism for changing the relative position of the mounting table with respect to the whetstone blade, and a control unit for controlling the moving mechanism, and a mechanism for moving the base material of the rod-shaped magnetic head. The magnetic head is cut out by holding it on the mounting table so that its major axis is inclined with respect to the moving direction, and then reciprocally moving the mounting table with respect to the rotating grindstone blade. In order to achieve the above-mentioned object, the control unit changes the range of reciprocal movement by the moving mechanism along the angle at which the base material is held with respect to the moving direction.

【0012】[0012]

【作用】従来のダイサでは、母材が移動機構の移動軸に
対して斜めに保持されていても、往復移動の移動範囲は
固定であった。そのため実際には母材が存在せず、加工
を行なわない部分も往復移動していた。これに比べて本
発明では、往復移動の範囲を母材が移動軸に対して保持
される角度、すなわちアジマス角に沿って変化されるた
め、上記の母材が存在しない部分の往復移動がなくな
り、その分の加工時間の短縮が図れる。
In the conventional dicer, the moving range of the reciprocating movement is fixed even if the base material is held obliquely with respect to the moving shaft of the moving mechanism. Therefore, the base material did not actually exist, and the part that was not processed also moved back and forth. On the other hand, in the present invention, the range of the reciprocating movement is changed along the angle at which the base material is held with respect to the moving axis, that is, the azimuth angle, so that the reciprocating movement of the portion where the base material does not exist is eliminated. Therefore, the processing time can be shortened accordingly.

【0013】[0013]

【実施例】図1は本発明の実施例の構成を示す図であ
る。本実施例は、図4で説明したダイサと同様の機能を
有している。図1において、11は砥石刃である。11
1と112は砥石刃11を支持する部分であり、被加工
物を設置するため砥石刃11を上方に移動又は回転して
退避する機構を有しているが、ここでは省略している。
FIG. 1 is a diagram showing the configuration of an embodiment of the present invention. This embodiment has the same function as the dicer described with reference to FIG. In FIG. 1, 11 is a grindstone blade. 11
Reference numerals 1 and 112 denote portions that support the grindstone blade 11, and have a mechanism for moving or rotating the grindstone blade 11 upward to set a workpiece, but the mechanism is omitted here.

【0014】12は載置台であり、その上に被加工物、
ここでは図8に示したような磁気ヘッドの母材をアジマ
ス角だけ傾けて配列したものが保持されている。13は
載置台12を砥石刃11に対して移動させる機構であ
り、3軸方向の移動が可能である。この移動機構13
は、砥石刃を移動させるものであってもよい。
Reference numeral 12 is a mounting table on which a work piece,
Here, the base material of the magnetic head as shown in FIG. 8 which is arranged with being inclined by the azimuth angle is held. Reference numeral 13 denotes a mechanism that moves the mounting table 12 with respect to the grindstone blade 11, and can move in three axial directions. This moving mechanism 13
May move the grindstone blade.

【0015】14は移動機構13を制御する制御部であ
り、実際にはマイクロコンピュータ等で構成される。制
御部14は、外部より入力される加工指示内容に従って
移動機構13の軌跡を算出し、この軌跡に従って移動機
構13が移動するように駆動信号を出力する。図2は本
実施例における砥石刃11と載置台12の位置関係の変
化を、載置台12上に配列された母材に対する砥石刃1
1の中心位置の軌跡を水平面上に投影して表わした図で
ある。図8と比べると明らかなように、往復移動の範囲
が母材210の配列に沿って変化している。これにより
加工が行なわれない部分の往復移動が省かれるため全体
の移動距離が短かくなり、加工時間が短縮される。
Reference numeral 14 is a control unit for controlling the moving mechanism 13, which is actually composed of a microcomputer or the like. The control unit 14 calculates the trajectory of the moving mechanism 13 according to the processing instruction content input from the outside, and outputs a drive signal so that the moving mechanism 13 moves according to the trajectory. FIG. 2 shows the change in the positional relationship between the grindstone blade 11 and the mounting table 12 in the present embodiment, with respect to the base material arranged on the mounting table 12
It is the figure which projected and represented the locus | trajectory of the center position of 1 on the horizontal plane. As is clear from comparison with FIG. 8, the range of reciprocating movement changes along the arrangement of the base material 210. As a result, the reciprocating movement of the portion which is not processed is omitted, so that the total movement distance becomes short and the processing time is shortened.

【0016】図2に示すように加工開始時の砥石刃の中
心は母材の端より距離aだけ離れている。加工において
は、この距離aだけ余分に移動することが絶対に必要で
あり、この点について図3を参照して説明する。往復移
動が終了すると、砥石刃と載置台の相対位置を往復移動
に垂直な方向に、磁気ヘッドの厚みと加工溝の幅を加え
た量だけシフトするが、この時砥石刃の側面が母材に接
触しないようにする必要がある。もし接触すると、砥石
刃と母材の両方を損傷する。図3に示すように、砥石刃
31の半径をRとし、母材310の高さをhとすると、
砥石刃31が母材310に接触する限界状態は砥石刃3
1の外周が母材310の上端に接触する時である。従っ
てその時の砥石刃31の垂直方向の中心軸と母材310
の端との距離aは(2Rh−h2 1/2 で表わされる。
As shown in FIG. 2, the center of the grindstone blade at the start of processing is separated from the end of the base material by a distance a. In processing, it is absolutely necessary to move an extra amount by this distance a, and this point will be described with reference to FIG. When the reciprocating movement is completed, the relative position between the grindstone blade and the mounting table is shifted in a direction perpendicular to the reciprocating movement by the amount of the thickness of the magnetic head and the width of the machining groove. Need to avoid contact with. If in contact, it will damage both the grindstone and the base metal. As shown in FIG. 3, when the radius of the grindstone blade 31 is R and the height of the base material 310 is h,
The limit state in which the grindstone blade 31 contacts the base material 310 is the grindstone blade 3
It is when the outer periphery of 1 contacts the upper end of the base material 310. Therefore, at that time, the central axis of the grindstone 31 in the vertical direction and the base material 310
The distance a from the edge of is represented by (2Rh-h 2 ) 1/2 .

【0017】従って図2に示すように、砥石刃の中心の
軌跡は、母材210の端に対して距離a以上離れた位置
から往復移動を開始する必要がある。
Therefore, as shown in FIG. 2, the locus of the center of the grindstone blade needs to start the reciprocating movement from a position separated from the end of the base material 210 by a distance a or more.

【0018】[0018]

【発明の効果】本発明により、回転ヘッド切り出し用ダ
イサの生産効率の向上が可能になる。
According to the present invention, the production efficiency of the rotary head cutting dicer can be improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例の構成を示す図である。FIG. 1 is a diagram showing a configuration of an exemplary embodiment of the present invention.

【図2】実施例における砥石刃の軌跡を示す図である。FIG. 2 is a diagram showing a locus of a grindstone blade in an example.

【図3】加工部分の端で必要な移動範囲の余裕を示す図
である。
FIG. 3 is a diagram showing a margin of a moving range required at an end of a processed portion.

【図4】ダイサの全体を示す斜視図である。FIG. 4 is a perspective view showing the entire dicer.

【図5】VTR回転シリンダを示す図である。FIG. 5 is a diagram showing a VTR rotary cylinder.

【図6】テープ上のトラックとアジマス角の説明図であ
る。
FIG. 6 is an explanatory diagram of tracks on a tape and azimuth angles.

【図7】回転ヘッドとのその母材を示す図である。FIG. 7 is a diagram showing a rotary head and a base material thereof.

【図8】母材より回転ヘッドを切り出す時の母材の配列
と砥石刃の軌跡を示す図である。
FIG. 8 is a diagram showing an array of base materials and a locus of a grindstone blade when a rotary head is cut out from the base material.

【符号の説明】[Explanation of symbols]

11…砥石刃 12…載置台 13…移動機構 14…制御部 100…被加工物 11 ... Whetstone blade 12 ... Mounting table 13 ... Moving mechanism 14 ... Control unit 100 ... Workpiece

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 磁気ヘッドを棒状の母材(100)から
ダイサで切り出す磁気ヘッド加工方法であって、 前記母材(100)を、前記ダイサの載置台(12)の
移動方向に対して、長軸が斜めになるように前記載置台
(12)に保持する工程と、 回転する前記ダイサの砥石刃(11)に対して、前記載
置台を繰り返し所定ピッチ変化させながら往復移動させ
る工程とを備える磁気ヘッド加工方法において、 前記往復移動の範囲が、前記母材(100)の保持され
る角度に沿って変化されることを特徴とする磁気ヘッド
加工方法。
1. A magnetic head processing method for cutting a magnetic head from a rod-shaped base material (100) with a dicer, wherein the base material (100) is moved with respect to a moving direction of a mounting table (12) of the dicer. A step of holding it on the mounting table (12) so that the major axis is inclined; and a step of reciprocating the mounting table repeatedly changing the predetermined pitch with respect to the grindstone blade (11) of the rotating dicer. A magnetic head processing method comprising: a magnetic head processing method, wherein a range of the reciprocating movement is changed along an angle at which the base material (100) is held.
【請求項2】 砥石刃(11)と、 被加工物(100)を保持する載置台(12)と、 前記砥石刃(11)に対する前記載置台(12)の相対
位置を変化させる移動機構(13)と、 該移動機構(13)を制御する制御部(14)とを備
え、 棒状の磁気ヘッドの母材(100)を、前記移動機構
(13)の移動方向に対して長軸が斜めになるように前
記載置台(12)上に保持した上で、回転する前記砥石
刃(11)に対して前記載置台(12)の往復移動を繰
り返して磁気ヘッドの切り出しを行なう磁気ヘッド切り
出し用ダイサにおいて、 前記制御部(14)は、前記移動機構(13)による前
記往復移動の範囲を、前記母材(100)が前記移動方
向に対して保持される角度に沿って変化させることを特
徴とする磁気ヘッド切り出し用ダイサ。
2. A grindstone blade (11), a mounting table (12) for holding a workpiece (100), and a moving mechanism for changing the relative position of the mounting table (12) with respect to the grindstone blade (11). 13) and a control unit (14) for controlling the moving mechanism (13), and the base material (100) of the rod-shaped magnetic head has a major axis oblique to the moving direction of the moving mechanism (13). For holding the above-mentioned mounting table (12) so that the magnetic head is cut out by repeating the reciprocating movement of the mounting table (12) with respect to the rotating grindstone blade (11). In the dicer, the control unit (14) changes a range of the reciprocating movement by the moving mechanism (13) along an angle at which the base material (100) is held with respect to the moving direction. For cutting magnetic head Isa.
JP21614492A 1992-08-13 1992-08-13 Magnetic head processing method and magnetic head cutting dicing saw Withdrawn JPH0660313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21614492A JPH0660313A (en) 1992-08-13 1992-08-13 Magnetic head processing method and magnetic head cutting dicing saw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21614492A JPH0660313A (en) 1992-08-13 1992-08-13 Magnetic head processing method and magnetic head cutting dicing saw

Publications (1)

Publication Number Publication Date
JPH0660313A true JPH0660313A (en) 1994-03-04

Family

ID=16683968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21614492A Withdrawn JPH0660313A (en) 1992-08-13 1992-08-13 Magnetic head processing method and magnetic head cutting dicing saw

Country Status (1)

Country Link
JP (1) JPH0660313A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009054904A (en) * 2007-08-29 2009-03-12 Disco Abrasive Syst Ltd Cutting method and cutting device
US8920086B2 (en) 2005-11-02 2014-12-30 Airbus Operations Gmbh Taper bolt connection and use of a taper bolt connection
CN104647614A (en) * 2013-11-25 2015-05-27 北京国晶辉红外光学科技有限公司 Method for enabling inside diameter slicer to achieve continuous slicing without stop
CN109434191A (en) * 2018-12-13 2019-03-08 彭华斌 Angle pipe automatic cutting machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8920086B2 (en) 2005-11-02 2014-12-30 Airbus Operations Gmbh Taper bolt connection and use of a taper bolt connection
JP2009054904A (en) * 2007-08-29 2009-03-12 Disco Abrasive Syst Ltd Cutting method and cutting device
CN104647614A (en) * 2013-11-25 2015-05-27 北京国晶辉红外光学科技有限公司 Method for enabling inside diameter slicer to achieve continuous slicing without stop
CN109434191A (en) * 2018-12-13 2019-03-08 彭华斌 Angle pipe automatic cutting machine

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