JP2874727B2 - Manufacturing method of plate-shaped material - Google Patents
Manufacturing method of plate-shaped materialInfo
- Publication number
- JP2874727B2 JP2874727B2 JP20419594A JP20419594A JP2874727B2 JP 2874727 B2 JP2874727 B2 JP 2874727B2 JP 20419594 A JP20419594 A JP 20419594A JP 20419594 A JP20419594 A JP 20419594A JP 2874727 B2 JP2874727 B2 JP 2874727B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- concave
- shaped material
- dummy
- convex
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/023—Work treatment directly following extrusion, e.g. further deformation or surface treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は板状形材の製造方法に
関するもので、更に詳細には、断面形状が例えば櫛歯状
のように一方の面に凹凸条を有する板状形材の製造方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a plate-shaped material, and more particularly, to a method for manufacturing a plate-shaped material having a cross-sectional shape having, for example, a comb-like shape and having a concave and convex portion on one surface. It is about the method.
【０００２】[0002]
【従来の技術】例えば半導体デバイスの製造に使用され
る強制空冷用のヒートシンクは、図５に示すように、対
峙して配置される伝熱性を有する板体２の対向する面に
適宜間隔をおいて複数の溝条３を形成し、対向する溝条
３内にフィン４を嵌合すると共に、溝条３の突壁部７を
かしめ結合した構造となっている。2. Description of the Related Art As shown in FIG. 5, for example, a heat sink for forced air cooling used in the manufacture of a semiconductor device is provided with a suitable space on the opposing surface of a plate 2 having heat conductivity disposed opposite to the heat sink. In this structure, a plurality of grooves 3 are formed, fins 4 are fitted into the opposed grooves 3, and the protruding wall portions 7 of the grooves 3 are caulked and connected.
【０００３】このように構成されるヒートシンクにおい
て、板体２とフィン４との固定を確実にし、熱交換効率
の向上を図るために、発明者等はヒートシンク及びその
製造方法を開発した（特願平５−１２７７３５号）。こ
のヒートシンクは、図５ないし図７に示すように、アル
ミニウム合金製の押出形材にて形成される板体２に設け
られた溝条３間に、かしめ部５と、このかしめ部５と共
にフィン４を挾持する固定壁部６とを交互に形成して、
溝条３内にフィン４を嵌合した後、押圧治具をもって溝
条３の突壁部７をフィン側に圧潰してフィン４をかしめ
るようにしたものである。In order to secure the fixing of the plate body 2 and the fins 4 and to improve the heat exchange efficiency in the heat sink configured as described above, the inventors have developed a heat sink and a method of manufacturing the same. Hei 5-127735). As shown in FIGS. 5 to 7, the heat sink includes a caulked portion 5 and fins together with the caulked portion 5 between grooves 3 provided on a plate 2 formed of an extruded shape member made of an aluminum alloy. 4 are formed alternately with fixed wall portions 6 for holding
After the fins 4 are fitted into the grooves 3, the protruding wall portions 7 of the grooves 3 are crushed to the fin side by a pressing jig, and the fins 4 are caulked.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記ヒ
ートシンクに使用される板体２は断面が略櫛歯状をな
し、表裏面の断面形状が被対称であるため、ダイスを用
いて押出し成形する際、ダイスを通過するメタルの流速
や流量、摩擦抵抗あるいは温度に差が生じるため、図８
に示すように、板体２が溝条３を有する面側に湾曲する
現象が生じる。この湾曲は、例えば板体２の幅が４００
ｍｍ、板体２の厚みが１４ｍｍ、溝条３の深さが３ｍｍ
のものにおいては、撓みが約３ｍｍも生じる。そのた
め、溝条３間の寸法及び溝条３間の平行度が不揃いとな
り、隣接するフィン４同士が接触したり、かしめ部が不
十分となり、ひいては製品歩留まりが低下するという問
題があった。また、上記ヒートシンクの板体２以外の一
方の面に凹凸条を有する板状形材においても同様な問題
があった。However, since the cross section of the plate 2 used for the heat sink has a substantially comb-like shape and the cross-sectional shape of the front and back surfaces is symmetrical, the plate 2 is extruded using a die. Since there is a difference in the flow velocity, flow rate, frictional resistance or temperature of the metal passing through the die, FIG.
As shown in (1), a phenomenon occurs in which the plate body 2 curves toward the surface having the groove 3. This curvature is, for example, when the width of the plate 2 is 400
mm, the thickness of the plate 2 is 14 mm, and the depth of the groove 3 is 3 mm
, About 3 mm of deflection occurs. For this reason, the dimensions between the grooves 3 and the parallelism between the grooves 3 are not uniform, so that the adjacent fins 4 come into contact with each other or the caulked portion becomes insufficient, and the product yield is reduced. In addition, there is a similar problem in a plate-shaped material having unevenness on one surface other than the plate 2 of the heat sink.
【０００５】この発明は上記事情に鑑みなされたもの
で、一方の面に凹凸条を有する板状形材を平坦状に成形
でき、かつ製品歩留まりの向上を図れるようにした板状
形材の製造方法を提供することを目的とするものであ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made in view of the above circumstances, and is intended to manufacture a plate-shaped material having a flat shape with an uneven strip on one surface and capable of improving the product yield. It is intended to provide a method.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
にこの発明の板状形材の製造方法は、一方の面に凹凸条
を有する板状形材の製造方法において、上記凹凸条を有
する面と反対面にダミー用凹凸条を有する板状形材を押
出し成形する工程と、上記ダミー用凹凸条を平坦状に切
削する工程とを有することを特徴とするものである。In order to achieve the above-mentioned object, a method for producing a plate-shaped material according to the present invention is directed to a method for producing a plate-shaped material having irregularities on one surface. The method is characterized by comprising a step of extruding a plate-shaped material having a concave and convex strip for dummy on a surface opposite to a surface thereof, and a step of cutting the dummy concave and convex strip into a flat shape.
【０００７】この発明において、上記ダミー用凹凸条は
凹凸条と反対側面に設けられていれば任意でよいが、好
ましくはダミー用凹凸条の表面積を凹凸条の表面積と等
しくする方がよい。[0007] In the present invention, the dummy concavo-convex strip may be arbitrarily provided as long as it is provided on the side opposite to the concavo-convex strip. Preferably, the surface area of the dummy concavo-convex strip is equal to the surface area of the uneven strip.
【０００８】[0008]
【作用】この発明によれば、凹凸条を有する面と反対面
にダミー用凹凸条を有する板状形材を押出し成形した
後、ダミー用凹凸条を平坦状に切削することにより、一
方の面に凹凸条を有する板状形材を平坦状に成形するこ
とができる。According to the present invention, one surface is extruded by extruding a plate-shaped material having the concave and convex ridges on the surface opposite to the surface having the concave and convex ridges, and then cutting the concave and convex ridges into a flat shape. A plate-shaped member having an uneven strip can be formed into a flat shape.
【０００９】また、凹凸条の表面積とダミー用凹凸条の
表面積を等しくすることにより、板状形材の押出し成形
時の押出し成形用ダイスのベアリングにおける凹凸条側
とダミー用凹凸条側のメタルの摩擦抵抗及びメタルの流
速等を等しくすることができるので、平坦精度の高い押
出し形材を得ることができ、その後の切削精度の向上を
図ることができる。Further, by making the surface area of the concave and convex strips equal to the surface area of the dummy concave and convex strips, the metal on the concave and convex strip side and the dummy concave and convex strip side in the bearing of the extrusion die at the time of extrusion molding of the plate-shaped material. Since the frictional resistance, the flow velocity of the metal, and the like can be made equal, it is possible to obtain an extruded profile with high flatness accuracy and to improve the subsequent cutting accuracy.
【００１０】[0010]
【実施例】以下、この発明の実施例を添付図面に基づい
て詳細に説明する。ここでは、板状形材がヒートシンク
に使用される溝条を有する板状形材の場合について説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Here, the case where the plate-shaped material has a groove used for a heat sink will be described.
【００１１】図１はこの発明の製造方法に使用される押
出し成形用ダイスの正面図、図２は押出し成形の状態の
断面図である。FIG. 1 is a front view of an extrusion die used in the manufacturing method of the present invention, and FIG. 2 is a cross-sectional view of the extrusion die.
【００１２】上記押出し成形用ダイス１０に設けられる
ベアリング１１は、細長長方形状の基孔１２と、この基
孔１２の一方の辺（図１の上辺側）に連続して連なる凹
凸条１３と、基孔１２の他方の辺（図１の下辺側）に連
続して連なる波形状のダミー用凹凸条１４とで構成され
ている。この場合凹凸条１３は、具体的には、溝条３間
にかしめ部５と、このかしめ部５と共にフィン（図示せ
ず）を挾持する固定壁部６とを交互に設けた形状となっ
ている。また、ダミー用凹凸条１４の表面積は可及的に
凹凸条１３の表面積に等しく形成されている。その理由
は、押出し成形時の押出し成形用ダイス１０のベアリン
グ１１における凹凸条１３側とダミー用凹凸条１４側の
メタルの摩擦抵抗及びメタルの流速等を等しくすること
ができ、平坦精度の高い押出し形材２０ａを得ることが
できからである。したがって、ダミー用凹凸条１４の形
状は必ずしも波形状にする必要はなく、例えば凹凸条１
３の形状と同形状にしてもよい。A bearing 11 provided in the extrusion molding die 10 has an elongated rectangular base hole 12 and an uneven strip 13 continuously connected to one side of the base hole 12 (upper side in FIG. 1). It is composed of a wavy dummy concavo-convex strip 14 continuously connected to the other side (lower side of FIG. 1) of the base hole 12. In this case, the concavo-convex strip 13 has a shape in which caulking portions 5 and fixing wall portions 6 for holding fins (not shown) together with the caulking portions 5 are alternately provided between the grooves 3. I have. Further, the surface area of the concave / convex ridges 14 is formed as equal to the surface area of the concave / convex ridges 13 as much as possible. The reason is that the frictional resistance and the metal flow rate of the metal on the side of the concave and convex strips 13 and the dummy concave and convex strips 14 in the bearing 11 of the extrusion molding die 10 at the time of extrusion molding can be made equal, and the extrusion with high flatness precision can be achieved. This is because the shape member 20a can be obtained. Therefore, the shape of the concave / convex stripes 14 does not necessarily have to be corrugated.
The shape may be the same as the shape of No. 3.
【００１３】上記のように形成される押出し成形用ダイ
ス１０を用いて形材２０ａを押出し成形する場合は、ま
ず、上記のように形成された押出し成形用ダイス１０
を、図２に示す押出し成形機のコンテナ３０の前方側に
取り付ける。そして、コンテナ３０内に挿入された加熱
されたビレット３１をステム３２でダイス１０方向へ押
圧すると、ビレットすなわちメタルが、上述した形状の
ダイス１０のベアリング１１を通過して一方の面に凹凸
条１３を、他方の面にダミー用凹凸条１４を有する形状
の形材２０ａを成形する。When extruding the shape member 20a using the extrusion die 10 formed as described above, first, the extrusion die 10 formed as described above is used.
Is mounted on the front side of the container 30 of the extruder shown in FIG. When the heated billet 31 inserted into the container 30 is pressed in the direction of the die 10 by the stem 32, the billet, that is, the metal, passes through the bearing 11 of the die 10 having the above-described shape, and the uneven strip 13 is formed on one surface. Is formed into a shape member 20a having the dummy concavo-convex strip 14 on the other surface.
【００１４】上記のようにして押出し成形された形材２
０ａから板状形材２０を得るためには、上記形材２０ａ
を図示しないフライス装置にセットした後、図３に示す
ように、形材２０ａを水平移動すると共に、フライス刃
４０を垂直方向に移動調整すると共に、垂直軸を中心に
回転せてダミー用凹凸条１４を平坦状に切削して行う
（図４参照）。The profile 2 extruded as described above
In order to obtain the plate-shaped profile 20 from 0a,
3 is set in a milling device (not shown), and as shown in FIG. 3, the profile 20a is moved horizontally, the milling blade 40 is moved and adjusted in the vertical direction, and the dummy projections and depressions are rotated about the vertical axis. 14 is cut into a flat shape (see FIG. 4).
【００１５】上記のようにして凹凸条１３とダミー用凹
凸条１４を有する形材２０ａを押出し成形した後、ダミ
ー用凹凸条１４をフライス加工によって平坦状に切削す
ることにより、板状形材２０の凹凸条１３、具体的には
溝条３、かしめ部５及び固定壁部６は互いに平行に形成
されるので、フィン（図示せず）を平行にかつ確実にか
しめ固定することができる。After extruding the profile 20a having the ridges 13 and the ridges 14 for the dummy as described above, the ridges 14 for the dummy are cut into a flat shape by milling. Since the uneven ridges 13, specifically, the groove 3, the caulked portion 5 and the fixed wall portion 6 are formed in parallel with each other, the fins (not shown) can be caulked and fixed in parallel and reliably.
【００１６】なお、上記実施例では、板状形材がヒート
シンクに使用される溝条を有する板体の場合について説
明したが、一方の面に凹凸条を有する板状形材であれば
ヒートシンク以外に使用される板状形材についても同様
に押出し成形することができる。In the above embodiment, the case where the plate-shaped material has a groove used for a heat sink has been described. Extrusion molding can be similarly performed for the plate-shaped material used in the above.
【００１７】[0017]
【発明の効果】以上に説明したようにこの発明によれ
ば、凹凸条を有する面と反対面にダミー用凹凸条を有す
る板状形材を押出し成形した後、ダミー用凹凸条を平坦
状に切削するので、一方の面に凹凸条を有する板状形材
を容易に平坦状に成形することができると共に、製品歩
留まりの向上を図ることができる。As described above, according to the present invention, after extruding and forming a plate-shaped material having irregularities for dummy on the surface opposite to the surface having irregularities, the irregularities for dummy are flattened. Since the cutting is performed, it is possible to easily form the plate-shaped material having the irregularities on one surface into a flat shape and improve the product yield.
【００１８】また、凹凸条の表面積とダミー用凹凸条の
表面積を等しくすることにより、板状形材の押出し成形
時の押出し成形用ダイスのベアリングにおける凹凸条側
とダミー用凹凸条側のメタルの摩擦抵抗及びメタルの流
速等を等しくすることができるので、平坦精度の高い押
出し形材を得ることができ、その後の切削精度の向上を
図ることができる。Further, by making the surface area of the concave and convex strips equal to the surface area of the dummy concave and convex strips, the metal on the concave and convex strip side and the dummy concave and convex strip side in the bearing of the extrusion die at the time of extrusion molding of the plate-shaped material is formed. Since the frictional resistance, the flow velocity of the metal, and the like can be made equal, it is possible to obtain an extruded profile with high flatness accuracy and to improve the subsequent cutting accuracy.
【図１】この発明の製造方法に使用される押出し成形用
ダイスの正面図である。FIG. 1 is a front view of an extrusion die used in the manufacturing method of the present invention.
【図２】押出し成形状態を示す断面図である。FIG. 2 is a sectional view showing an extruded state.
【図３】ダミー用凹凸条の切削状態を示す斜視図であ
る。FIG. 3 is a perspective view showing a cutting state of the dummy concave and convex strips.
【図４】板状形材の概略断面図である。FIG. 4 is a schematic sectional view of a plate-shaped member.
【図５】ヒートシンクの正面図である。FIG. 5 is a front view of a heat sink.
【図６】ヒートシンクの板体とフィンとの取付状態を示
す拡大断面図である。FIG. 6 is an enlarged cross-sectional view showing a mounting state of a plate and a fin of a heat sink.
【図７】ヒートシンクの板体のかしめ部を示す拡大断面
図である。FIG. 7 is an enlarged sectional view showing a caulked portion of a plate of a heat sink.
【図８】従来の板状形材の概略断面図である。FIG. 8 is a schematic sectional view of a conventional plate-shaped member.
１０ 押出し成形用ダイス １１ ベアリング １２ 基孔 １３ 凹凸条 １４ ダミー用凹凸条 ２０ 板状形材 ２０ａ 押出し形材 ４０ フライス刃 REFERENCE SIGNS LIST 10 Extrusion die 11 Bearing 12 Base hole 13 Irregular stripe 14 Irregular stripe for dummy 20 Plate-shaped member 20 a Extruded member 40 Milling blade
Claims (2)
造方法において、 上記凹凸条を有する面と反対面にダミー用凹凸条を有す
る板状形材を押出し成形する工程と、 上記ダミー用凹凸条を平坦状に切削する工程とを有する
ことを特徴とする板状形材の製造方法。1. A method for producing a plate-shaped material having an uneven stripe on one surface, comprising: extruding a plate-shaped material having a dummy uneven stripe on a surface opposite to the surface having the uneven stripe; Cutting the concave and convex strips for dummy into a flat shape.
積を等しくしたことを特徴とする請求項１記載の板状形
材の製造方法。2. The method for producing a plate-shaped material according to claim 1, wherein the surface area of the concave and convex strips and the surface area of the dummy concave and convex strips are made equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20419594A JP2874727B2 (en) | 1994-08-08 | 1994-08-08 | Manufacturing method of plate-shaped material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20419594A JP2874727B2 (en) | 1994-08-08 | 1994-08-08 | Manufacturing method of plate-shaped material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0847713A JPH0847713A (en) | 1996-02-20 |
| JP2874727B2 true JP2874727B2 (en) | 1999-03-24 |
Family
ID=16486412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20419594A Expired - Fee Related JP2874727B2 (en) | 1994-08-08 | 1994-08-08 | Manufacturing method of plate-shaped material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2874727B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITVR20040115A1 (en) * | 2004-07-14 | 2004-10-14 | Gianfranco Natali | METHOD OF OPTIMIZATION OF AN EXTRUSION PROCEDURE OF AN ALUMINUM PROFILE |
| AT503550B1 (en) * | 2006-05-31 | 2007-11-15 | Amag Extrusion Gmbh | EXTRUDED PROFILE, ESPECIALLY FLOOR PROFILE |
| CN103586515A (en) * | 2013-11-15 | 2014-02-19 | 中航飞机股份有限公司西安飞机分公司 | Numerically-controlled milling method for skin-covered components |
-
1994
- 1994-08-08 JP JP20419594A patent/JP2874727B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0847713A (en) | 1996-02-20 |
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