JPS6384813A - Cutting method for long-sized ingot - Google Patents

Cutting method for long-sized ingot

Info

Publication number
JPS6384813A
JPS6384813A JP61230980A JP23098086A JPS6384813A JP S6384813 A JPS6384813 A JP S6384813A JP 61230980 A JP61230980 A JP 61230980A JP 23098086 A JP23098086 A JP 23098086A JP S6384813 A JPS6384813 A JP S6384813A
Authority
JP
Japan
Prior art keywords
ingot
long
cutting
peripheral groove
circumferential groove
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.)
Granted
Application number
JP61230980A
Other languages
Japanese (ja)
Other versions
JPH0565284B2 (en
Inventor
Yoshitaka Nagai
永井 嘉隆
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.)
YKK Corp
Original Assignee
YKK Corp
Yoshida Kogyo KK
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 YKK Corp, Yoshida Kogyo KK filed Critical YKK Corp
Priority to JP61230980A priority Critical patent/JPS6384813A/en
Publication of JPS6384813A publication Critical patent/JPS6384813A/en
Publication of JPH0565284B2 publication Critical patent/JPH0565284B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C33/00Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • B21C33/006Consecutive billets, e.g. billet profiles allowing air expulsion or bonding of billets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Extrusion Of Metal (AREA)

Abstract

PURPOSE:To prevent the occurrence of deformation and burrs by forming a peripheral groove with a cutter of a 20 deg. or less cutting edge angle pressed to the external surface of a long-sized ingot, and cutting the ingot at the peripheral groove with the application of a shear force via movable and fixed dies. CONSTITUTION:A long-sized ingot 1 of circular cylinder type is fed with a feed roller 19 until the contact thereof with a stopper 20 via a penetration hole 3, and clamped with a claw 5. Then, a motor 7 is operated, the ingot 1 is turned and a cutter 10 is lowered, thereby forming a peripheral groove on the external surface of the ingot 1. Thereafter, the feed roller 19 is again rotated, the ingot 1 is thereby passed through penetration holes 13 and 15, a movable die 17 is moved downward and the ingot 1 is sheared at the peripheral groove between the movable die 17 and a fixed die 14. According to the aforesaid constitution, the occurrence of deformation and burrs is prevented and a long-sized ingot having a smooth sectional surface can be cut efficiently.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、アルミニウムまtはアルミニウム合金等の金
属からなる長尺インゴットの切断方法に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for cutting long ingots made of metal such as aluminum or aluminum alloy.

従来の技術 従来の長尺インゴットの切断方法としては、ホットシャ
ーを用いて剪断するシャーリング法が一般に知られてお
シ、また他の方法としては、特開昭5.1−10569
3号公報に示すように、長手方向を軸心として回転する
円形長尺物の周囲に受はローラを配し、該円形長尺物の
外周にダイスを押しつけて周溝を形成し、この周溝を深
めていって円形長尺物を切断するところのダイス法が知
られてい友。
BACKGROUND OF THE INVENTION As a conventional method for cutting long ingots, a shearing method in which shearing is performed using a hot shear is generally known.
As shown in Publication No. 3, a roller is arranged around a circular elongated object that rotates with the longitudinal direction as the axis, and a die is pressed against the outer periphery of the circular elongated object to form a circumferential groove. The die method, which cuts long circular objects by deepening the groove, is well known.

発明が解決しようとする問題点 ところで、従来のンヤーリング法で切断し之長尺インゴ
ットの切断面は、第6図に示すように、だれa1凹凸状
の破断面b1かえシc等の変形部やパリの発生が避けら
れず、このような変形部やパリは、例えば押出用ビレッ
トとして用い友場合に、押出機のコンテナ内にセットし
友時に、パリが送り込みの障害となり、また変形部内に
閉じ込められ7i(空気が押出加工の際に、押出形材に
巻き込まれて押出形材の外観を損う原因となり部類とな
ってい友。
Problems to be Solved by the Invention Incidentally, as shown in FIG. 6, the cut surface of a long ingot cut by the conventional yarning method has deformed parts such as droop a1, uneven fractured surface b1 barb c, etc. The occurrence of debris is unavoidable, and such deformed parts and debris can become an obstacle to feeding when used as a billet for extrusion, for example, and are trapped in the deformed part when set in the container of an extruder. 7i (During the extrusion process, air gets caught up in the extruded shape and causes damage to the external appearance of the extruded shape.)

1九ダイス法で長尺インボラトラ切断した場合には、切
断端に第7図に示すように肉の盛り上りdが生じ、これ
をなくすため受はローラ等により押しつぶして外周を平
らにしても第8図に示すように軸方向に突出した変形部
eが発生し、これが押出用ビレットとして用いた場合に
シャーリング法で発生した変形部と同様に押出機のコン
テナー内にセットした時に変形部内に空気が閉じ込めら
れて、押出加工の際に押出形材に巻き込まれて押出形材
の外観を損う原因となり問題となってい比。
When cutting a long inbola tiger using the 19 die method, a bulge of meat d appears at the cut end as shown in Figure 7. As shown in Figure 8, a deformed part e that protrudes in the axial direction occurs, and when this billet is used as an extrusion billet, air is trapped inside the deformed part when it is set in the extruder container, similar to the deformed part that occurs in the shearing method. This is a problem as it becomes trapped and gets caught up in the extruded shape during extrusion processing, causing damage to the appearance of the extruded shape.

そこで本発明は、従来の問題点を解消して長尺インゴッ
トの切断面に押出加工の際に障害となるような変形部や
パリを発生させずに、しかも効率良く長尺インゴットを
切断することができる切断方法を提供することを目的と
したものである。
SUMMARY OF THE INVENTION Therefore, the present invention solves the conventional problems and efficiently cuts a long ingot without generating deformed parts or cracks on the cut surface of the long ingot that would be an obstacle during extrusion processing. The purpose is to provide a cutting method that allows for

問題点を解決するための手段 本発明は、従来の問題点を解消する九めに、第1図乃至
第4図に示すように、長尺インゴット1の外周に、20
° 以下の刃先角θを有するカッター10を押しつけて
、深さhが一;D<h<−Ln (Dはインゴットの直
径)となる周溝21を形成し、次いでこの形成した周溝
21に固定ダイ14と可動ダイ17とにより剪断力を与
えて、長尺インゴット1を周溝21の部分で切断するよ
うにしたもので、これにより切断面に変形部やパリを発
生させずに、効率よく長尺インゴットを切断するように
したものである。
Means for Solving the Problems The present invention solves the problems of the conventional art by adding 20
° A cutter 10 having the following cutting edge angle θ is pressed to form a circumferential groove 21 with a depth h of 1; D<h<-Ln (D is the diameter of the ingot), and then the formed circumferential groove 21 is The fixed die 14 and the movable die 17 apply shearing force to cut the long ingot 1 at the circumferential groove 21. This allows efficient cutting without causing deformation or cracks on the cut surface. It is designed to cut long ingots.

実施例 以下本発明の長尺インゴットの切断方法の実施例を図面
に基いて説明する。
EXAMPLE Hereinafter, an example of the method for cutting a long ingot according to the present invention will be described with reference to the drawings.

第1図乃至第4図は本発明の長尺インゴットの切断方法
を順に示した説明図である。
FIGS. 1 to 4 are explanatory diagrams sequentially showing a method for cutting a long ingot according to the present invention.

本発明を2実施するための装置は、長尺イン;。2. A device for carrying out the present invention is a long-length one;

ット1を挾持固定する支持装置Aと、長尺インゴット1
の外周に特定の深さの周溝21を形成する周溝形成装置
Bと、形成した周溝21に剪断力を付与して長尺インゴ
ット1を切断する切vrr装置Cとから構成されており
、第1図乃至第4図に示す装置は、本発明の切断方法を
説明するLめにその概略を示し友ものである。
A support device A that clamps and fixes the ingot 1, and a long ingot 1.
It is composed of a circumferential groove forming device B that forms a circumferential groove 21 of a specific depth on the outer periphery of the ingot, and a cutting vrr device C that applies shearing force to the formed circumferential groove 21 to cut the long ingot 1. The apparatus shown in FIGS. 1 to 4 is schematically shown in Section L for explaining the cutting method of the present invention.

そこで本発明の切断方法を、押出用ビレットとして用い
る短尺インゴットを長尺インゴットよ多切断する例につ
いて説明する。
Therefore, the cutting method of the present invention will be explained with reference to an example in which a short ingot used as an extrusion billet is cut more than a long ingot.

まず第1図に示すように、押出用に550℃〜500℃
に昇温さ九九円柱状のアルミニウムの長尺インゴット(
以下単に長尺インゴットという)1を、送り込みローラ
19によシ支持装置Aのチャック4の中央の円形の挿通
孔3f、貫通して送9込み、長尺インゴット1の先端が
、所定の位置に配置した第1ストツパー20に当接する
ことにより送り込みローラ19が停止し、長尺インゴッ
トの送り込みが停止される。そしてチャック4に並設し
た複数の爪5が、油圧ユニット6によって作動され、長
尺インゴットを挾持固定する。と同時に第1ストツパー
20は上方に後退する。次いで支持装置Aのモーター7
が作動し、ベルト8を駆動してチャック4を回転し、こ
れにより爪5によって挟持固定されている長尺インゴッ
ト1を第2図に示すように矢印方向に回転させる。続い
て周溝形成装置Bの、コ字状外枠9に回転自在に軸支し
た円板状のカッター10を、シリンダー11の作動によ
シ下降させ、回転している長尺インゴット1の切断所定
位置に刃先を押しつけて、長尺インゴット1の外周に第
5図の拡大図に示すような所定の深さhの周溝21を形
成する。この周溝形成において重要なことは、刃先角θ
が20° 以下のカッターを用いることと周溝の深さh
が一D<h<−D(Dは長尺インゴットの直径)の範囲
内にあるように形成することである。刃先角が20゛以
上のカッターを用いると、形成する周溝の外周に肉が盛
シ上るいわゆるフクレ現象が生じ易くなる几め、これを
防止する几めに刃先角が20゛以下のカッターを用い、
また形成する周溝の深さhは、長尺インゴットの直径の
i以下のように浅い場合には、次の切断工程で剪断する
時に、その切断面にだれ、凹凸状の破断面、かえり等に
よる変形部やパリが生じ易くなシ、そして長尺インゴッ
トの直径の1以上のように深い場合には、周溝の外周に
肉の盛シ上るいわゆるフクレ現象が生じ易くなるため、
これらを防止する之めに形成する周溝の深さhを一D<
h<−Dの範囲内にあるように限定したものである。
First, as shown in Figure 1, the temperature is 550°C to 500°C for extrusion.
A long cylindrical aluminum ingot (99) heated to
(hereinafter simply referred to as a long ingot) 1 is passed through the central circular insertion hole 3f of the chuck 4 of the support device A by the feed roller 19, and the tip of the long ingot 1 is placed in a predetermined position. The feeding roller 19 is stopped by coming into contact with the first stopper 20, and feeding of the elongated ingot is stopped. A plurality of claws 5 arranged in parallel on the chuck 4 are operated by a hydraulic unit 6 to clamp and fix the long ingot. At the same time, the first stopper 20 retreats upward. Then the motor 7 of the support device A
is activated to drive the belt 8 and rotate the chuck 4, thereby rotating the long ingot 1 held and fixed by the claws 5 in the direction of the arrow as shown in FIG. Next, the disc-shaped cutter 10 of the circumferential groove forming device B, which is rotatably supported on the U-shaped outer frame 9, is lowered by the operation of the cylinder 11, and the rotating long ingot 1 is cut. By pressing the cutting edge into a predetermined position, a circumferential groove 21 having a predetermined depth h as shown in the enlarged view of FIG. 5 is formed on the outer periphery of the long ingot 1. What is important in forming this circumferential groove is the cutting edge angle θ
Use a cutter with a diameter of 20° or less and the depth h of the circumferential groove.
The ingot is formed so that D<h<-D (D is the diameter of the long ingot). If a cutter with a cutting edge angle of 20° or more is used, the so-called blistering phenomenon, in which meat builds up on the outer periphery of the circumferential groove to be formed, is likely to occur.To prevent this, use a cutter with a cutting edge angle of 20° or less. use,
In addition, if the depth h of the circumferential groove to be formed is shallow, such as less than i of the diameter of the long ingot, the cut surface will have droop, uneven fracture surfaces, burrs, etc. when shearing in the next cutting process. If the groove is deep, such as one or more of the diameter of the long ingot, the so-called blistering phenomenon, in which the meat builds up on the outer periphery of the circumferential groove, is likely to occur.
To prevent these, the depth h of the circumferential groove formed is 1D<
It is limited to be within the range h<-D.

このようにして長尺インゴット1の外周に所定の深さの
周溝21を形成すると、カッター10の側方に配置し友
光電管等によるリミットスイッチ22が働き、シリンダ
ー11の作動によりカッター10を上方へ後退させると
同時にて長尺インゴット1の挾持を解除する。
When the circumferential groove 21 of a predetermined depth is formed on the outer periphery of the long ingot 1 in this way, a limit switch 22 made of a Yuko tube or the like placed on the side of the cutter 10 is activated, and the cutter 10 is moved upward by the operation of the cylinder 11. At the same time, the holding of the long ingot 1 is released.

次に送シ込みローラー9が再び回転し、第3図に示すよ
うに長尺インゴット1t−切断装置Cの固定ダイ14と
可動ダイ17の夫々の貫通孔13.15内に挿入し、長
尺インゴット1の先端がWJ2ストッパー23に当接し
て送りが停止される。この時固定ダイ14と可動ダイ1
7の剪断面と長尺インゴットの周溝21が一致するよう
に停止される。なお第1ストツパー20および第2スト
ツパー23は、切断長さ設定器24により長尺インゴッ
トを所望の長さに切断できるように設定位置を調節でき
るように構成されている。
Next, the feeding roller 9 rotates again, and as shown in FIG. 3, the long ingot 1t is inserted into the respective through holes 13. The tip of the ingot 1 contacts the WJ2 stopper 23 and the feeding is stopped. At this time, the fixed die 14 and the movable die 1
The ingot is stopped so that the sheared surface 7 and the circumferential groove 21 of the elongated ingot coincide with each other. The first stopper 20 and the second stopper 23 are configured so that the setting positions thereof can be adjusted by a cutting length setting device 24 so that the long ingot can be cut into a desired length.

次いで第4図に示すように第2ストツパー23が上方に
後退し、切断装置Cのジャーシリンダー16が作動して
可動ダイ17が下方に移動して長尺インゴットに形成さ
れた周溝21において、固定ダイ14との間で剪断が行
われる。
Next, as shown in FIG. 4, the second stopper 23 retreats upward, the jar cylinder 16 of the cutting device C operates, and the movable die 17 moves downward in the circumferential groove 21 formed in the long ingot. Shearing is performed between the fixed die 14 and the fixed die 14 .

そして剪断の完了をリミットスイッチ(図示せず)によ
り感知すると、長尺インゴットの残部は送り込みローラ
19の逆回転により後退し、次の切断のための周溝形成
位置に待機する。−方切断された短尺インゴット1′は
、切断装置の下方に設けた突出シリンダー18によって
前方に押出され、次の押出プレス機に送シ込まれる。
When the completion of shearing is sensed by a limit switch (not shown), the remaining part of the long ingot is moved back by reverse rotation of the feed roller 19, and waits at the circumferential groove forming position for the next cutting. The short ingot 1' cut in the - direction is extruded forward by a protruding cylinder 18 provided below the cutting device and fed into the next extrusion press.

短尺インゴット1′の送り出しが完了すると、可動ダイ
17が上方に移動して次の切断の几めに待機する。
When feeding of the short ingot 1' is completed, the movable die 17 moves upward and waits for the next cutting.

以上のような工程を繰返すことにより、長尺インゴット
から所望長さの平滑な切断面を有する短尺インゴツIf
自動的に連続して切断することができるようにし友もの
である。
By repeating the above steps, a short ingot with a smooth cut surface of a desired length is obtained from a long ingot.
It is a companion that allows you to automatically cut continuously.

発明の効果 以上のように本発明は、特定の条件の下に、カッターに
よシ長尺インゴットの外周に周溝を°形成し、この周溝
に剪断力を付与して長尺インゴットを切断することによ
り、ダイス法とシャーリング法を巧みに組合せ、夫々の
切断法に発生する欠点である周溝外周のフクレ現象、切
断面の変形、パリ等の発生を防止して、平滑な切断面を
有する短尺インゴットを効率よく長尺インゴットより切
シ取ることができ、本発明の切断方法で得られた短尺イ
ンゴットは例えば押出用ビレットとして使用すれば、パ
リによる送り込みの支障もなく、押出の際にもフクレや
変形部がない之めコンテナーとビレットの間に空気が滞
留することがないので外観の良好な押出形材を得ること
ができるもので、本発明の切断方法は大変優れた方法で
ある。
Effects of the Invention As described above, the present invention forms a circumferential groove on the outer periphery of a long ingot using a cutter under specific conditions, and applies shearing force to this circumferential groove to cut the long ingot. By skillfully combining the die method and shearing method, it is possible to prevent the occurrence of blistering on the outer periphery of the circumferential groove, deformation of the cut surface, burr, etc., which are disadvantages of each cutting method, and create a smooth cut surface. If the short ingot obtained by the cutting method of the present invention is used, for example, as an extrusion billet, there will be no hindrance to feeding due to paris, and the short ingot can be efficiently cut from a long ingot. Since there are no blisters or deformed parts, there is no accumulation of air between the container and the billet, making it possible to obtain extruded sections with good appearance, making the cutting method of the present invention a very excellent method. .

【図面の簡単な説明】[Brief explanation of the drawing]

第1図乃至第4図は本発明の切断方法を概略的に示し友
説明図、第5図は長尺インゴットの周溝部の断面図、第
6図は公知のシャーリング法による切断部の断面図、第
7図および第8図は公知のダイス法による切断部の断面
図である。 1・・・・・・長尺インゴット 1/・・・・・・短尺インゴット 4・・・・・・チャック 10・・・カッター 14・・・固定ダイ 17・・・可動ダイ 18・・・突出シリンダー 21・・・周溝 A・・・・・・支持装置 B・・・・・・周溝形成装置 C・・・・・・切断装置
1 to 4 are explanatory diagrams schematically showing the cutting method of the present invention, FIG. 5 is a sectional view of the circumferential groove of a long ingot, and FIG. 6 is a sectional view of a section cut by a known shearing method. , FIG. 7, and FIG. 8 are cross-sectional views of a section cut by the known die method. 1...Long ingot 1/...Short ingot 4...Chuck 10...Cutter 14...Fixed die 17...Movable die 18...Protrusion Cylinder 21... Circumferential groove A... Support device B... Circumferential groove forming device C... Cutting device

Claims (1)

【特許請求の範囲】[Claims] 長尺インゴット(1)の外周に、20°以下の刃先角(
θ)を有するカッター(10)を押しつけて、深さ(h
)が(1/8)D<h<(3/8)D(Dはインゴット
の直径)となる周溝(21)を形成する第1工程と、該
第1工程で形成した周溝(21)に剪断力を付与して長
尺インゴット(1)を切断する第2工程とからなること
を特徴とする長尺インゴットの切断方法。
A cutting edge angle of 20° or less (
The cutter (10) having a depth (θ) is pressed against the cutter (10) having a depth (h
) is (1/8)D<h<(3/8)D (D is the diameter of the ingot). A method for cutting a long ingot, comprising: a second step of cutting the long ingot (1) by applying a shearing force to the long ingot (1).
JP61230980A 1986-09-29 1986-09-29 Cutting method for long-sized ingot Granted JPS6384813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61230980A JPS6384813A (en) 1986-09-29 1986-09-29 Cutting method for long-sized ingot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61230980A JPS6384813A (en) 1986-09-29 1986-09-29 Cutting method for long-sized ingot

Publications (2)

Publication Number Publication Date
JPS6384813A true JPS6384813A (en) 1988-04-15
JPH0565284B2 JPH0565284B2 (en) 1993-09-17

Family

ID=16916337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61230980A Granted JPS6384813A (en) 1986-09-29 1986-09-29 Cutting method for long-sized ingot

Country Status (1)

Country Link
JP (1) JPS6384813A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7073420B2 (en) * 2003-04-29 2006-07-11 Hsung Huei Industrial Co., Ltd. Hydraulic cutting device for cutting a raw aluminum material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882617A (en) * 1981-11-09 1983-05-18 Tokai Rika Co Ltd Shearing work
JPS6044139A (en) * 1983-08-22 1985-03-09 Aida Eng Ltd Feeder controlling device
JPS60207712A (en) * 1984-03-29 1985-10-19 Mitsubishi Heavy Ind Ltd Cutting method of slitter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5882617A (en) * 1981-11-09 1983-05-18 Tokai Rika Co Ltd Shearing work
JPS6044139A (en) * 1983-08-22 1985-03-09 Aida Eng Ltd Feeder controlling device
JPS60207712A (en) * 1984-03-29 1985-10-19 Mitsubishi Heavy Ind Ltd Cutting method of slitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7073420B2 (en) * 2003-04-29 2006-07-11 Hsung Huei Industrial Co., Ltd. Hydraulic cutting device for cutting a raw aluminum material

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JPH0565284B2 (en) 1993-09-17

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