JPS585214A - Method of deep drawing for aluminum three-layer laminate - Google Patents
Method of deep drawing for aluminum three-layer laminateInfo
- Publication number
- JPS585214A JPS585214A JP56103266A JP10326681A JPS585214A JP S585214 A JPS585214 A JP S585214A JP 56103266 A JP56103266 A JP 56103266A JP 10326681 A JP10326681 A JP 10326681A JP S585214 A JPS585214 A JP S585214A
- Authority
- JP
- Japan
- Prior art keywords
- cut plate
- aluminum
- cut
- plate
- pressed
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、合成樹脂板の両面をアルミニウム板で被覆
ｔてなるいわゆるアルミニウム三層積層板のプレスによ
る深絞り方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for deep drawing by pressing a so-called three-layer aluminum laminate, which is a synthetic resin plate whose both sides are covered with aluminum plates.
アルミニウム三層積層板は、軽量でありながら十分な強
度を有する汎用素材として、各分針においてその用途を
急速に拡大しつつあり、ことに、トランク、各種ケース
等の容器の分針において著しいものがある。ところが、
このような％徽を有する三層積層板もプレスによる成形
、特に深く絞る場合には、アルミニウムと合成樹脂との
展張率の違い、あるいはプレス前のプレートの形状等に
起因して亀裂が生じてしまい、通常のプレス方法では深
く絞る必要のある成品の成形は殆んど不可Ｆ７にであっ
た。Three-layer aluminum laminate is a versatile material that is lightweight yet has sufficient strength, and its use in minute hands is rapidly expanding, especially in minute hands for containers such as trunks and various cases. . However,
When forming a three-layer laminate with such a percentage by pressing, especially when drawing deeply, cracks may occur due to the difference in elongation rate between aluminum and synthetic resin, or the shape of the plate before pressing. As a result, it was almost impossible to form a product that required deep drawing using the normal pressing method.
この発明は、上述のような従来の問題点に着目してなさ
れたもので、間車な構成によってアルミニウム三層積層
板のプレスによる深絞り方法を提供することを目的とす
る。The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a method of deep drawing by pressing a three-layer aluminum laminate using a simple construction.
以下、実施例に基づいてこの発明を説明する。The present invention will be explained below based on examples.
この実施例は第１図のような深さのある小判型の容器１
をプレス成形する場合に関するものである。なお、図中
ａはアルミニウム板、ｂは合成樹［）旨板を示す。This embodiment is a deep oval-shaped container 1 as shown in Fig. 1.
This relates to the case of press molding. In the figure, a indicates an aluminum plate, and b indicates a synthetic wood board.
まず、長方形のアルミニウム三層積層側片りの頂角部を
カットして第２図に示すような長へ角形のカットプレー
ト２を形成する。この長へ角形状のカットプレート２は
第１図に示す小判型容器１を展開した場合の形状（はぼ
小判形）より外周がひとまわり大きめのものである。First, the apex corner of a rectangular three-layer aluminum laminated side piece is cut to form a rectangular cut plate 2 having a length as shown in FIG. This rectangular cut plate 2 has an outer circumference slightly larger than the shape of the oval container 1 shown in FIG. 1 when it is unfolded (the oval shape).
次いで、このカットプレート２の少なくとも一側面全面
に合成樹脂シート等からなるいわゆる養生紙３を貼付す
る。この養生紙３はカットプレート２の表裏両面に貼付
しても良いことは勿論である。そして、第３段階として
、上記養生紙３を貼付したカットプレート２をプレス装
置にセットし約２０〜３０秒のストローク時間をもって
プレスする。この際、第４図に示すように赤外線ランプ
６によって赤外線を上型４、下型５およびカットプレー
ト２に照射して適宜加熱する。Next, a so-called curing paper 3 made of a synthetic resin sheet or the like is attached to the entire surface of at least one side of the cut plate 2. Of course, this curing paper 3 may be attached to both the front and back sides of the cut plate 2. Then, in the third step, the cut plate 2 with the curing paper 3 pasted thereon is set in a press and pressed with a stroke time of about 20 to 30 seconds. At this time, as shown in FIG. 4, the upper die 4, the lower die 5, and the cut plate 2 are irradiated with infrared rays by an infrared lamp 6 to heat them appropriately.
この発明は、上記のような工程より構成されるから次の
ような効果を得ることができる。Since the present invention is composed of the steps described above, the following effects can be obtained.
（イ）被プレス材すなわちアルミニウム三層積層板をプ
レスによる完成品の展１形状にほぼ近い形状にプレス前
にカットしておくため、被プレス材のプレス後に形成さ
れる７ランプ部が極〈小さくなり、ポンチ頭部および壁
部に接する箇所の塑性変形に伴う残留応力が７ランプ部
で異方向に複雑に干渉することがなく平均して７ランジ
端部に作用するため製品に亀裂を生じたりすることがな
い。(b) Since the material to be pressed, that is, the three-layer aluminum laminate, is cut into a shape that is almost close to the shape of the finished product by pressing, the 7 ramp portions formed after pressing the material to be pressed are extremely small. The residual stress due to plastic deformation at the point in contact with the punch head and wall does not interfere in a complicated manner in different directions at the 7-ramp portion, and instead acts on the 7-ramp end on average, causing cracks in the product. There is nothing to do.
＋ｏｌ 被プレス材すなわちアルミニウム三層積層板
に養生紙を貼付してプレスを行なうため、プレスの際に
プレス型と被プレス材との間には、微小な弾性層が形成
されるので、プレスの際の波プレス材に生じる不均一な
引張力、圧縮応力等を吸収してほぼ均一なものとなしう
るので、製品に亀裂を生じることがない。+ol Because pressing is performed by pasting curing paper on the material to be pressed, that is, a three-layer aluminum laminate, a minute elastic layer is formed between the press mold and the material to be pressed during pressing, so the press Since the uneven tensile force, compressive stress, etc. that occur in the corrugated pressed material can be absorbed and made almost uniform, no cracks will occur in the product.
（ハ） プレス時に上型、下型および被プレス材である
アルミニウム三層積層板に赤外線を照射して加熱するた
め、アルミニウム板の間に充填されている合成樹脂材が
適度に加熱されて弾性、可塑性、展延性がアルミニウム
材のそれらに近似するようになる゛ので、成器のしわの
発生、あるいは亀裂等の防止を図ることができる。(c) During pressing, the upper mold, lower mold, and aluminum three-layer laminate that is the material to be pressed are heated by irradiating infrared rays, so the synthetic resin material filled between the aluminum plates is heated appropriately and becomes elastic and plastic. Since the malleability becomes similar to that of aluminum material, it is possible to prevent wrinkles or cracks in the finished product.
第１図は本願発明の実施例における成形品の斜視図、第
２ｖ４Ｆｉプレス成形前のカットプレートの斜視図、第
３図はカットプレート面に養生紙を貼付する１暢の説明
図、第４図はプレス工程の説明図である。
２・・・・・・−・カットプレート
３・・・・−・・・養生紙
４・・・・・・・−上型
５・・・・・・・・・下型
６・・・・・・・・−赤外線ランプFig. 1 is a perspective view of a molded product in an embodiment of the present invention, a perspective view of a cut plate before the 2nd v4Fi press molding, Fig. 3 is an explanatory diagram of the process of pasting curing paper on the cut plate surface, Fig. 4 is an explanatory diagram of a pressing process. 2...Cut plate 3...Curing paper 4...Upper die 5...Lower die 6...・・・・－Infrared lamp
Claims (1)
成形による成形品の展開形状より、ひとまわり大きめの
カットプレートに裁断する工程１（２）前記カットプレ
ートに養生紙を貼付する工程、 ＋３１ １１ＪＥを貼付したカットプレートをプレス装
置にセットし、上型、下型およびカットプレートに赤外
線を照射しつつ徐々にプレスする工程、 の三工程からなるアルミニウム三層積層板の深絞りプレ
ス方法。[Claims] fi+ Step 1 of cutting a three-layer aluminum laminate into a cut plate that is slightly larger than the developed shape of the molded product formed by press-molding the laminate (2) Attaching curing paper to the cut plate Deep drawing press of three-layer aluminum laminate consisting of three steps: step, setting the cut plate with +31 11JE affixed on the press equipment, and gradually pressing while irradiating the upper mold, lower mold and cut plate with infrared rays. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56103266A JPS585214A (en) | 1981-07-03 | 1981-07-03 | Method of deep drawing for aluminum three-layer laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56103266A JPS585214A (en) | 1981-07-03 | 1981-07-03 | Method of deep drawing for aluminum three-layer laminate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS585214A true JPS585214A (en) | 1983-01-12 |
Family
ID=14349622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56103266A Pending JPS585214A (en) | 1981-07-03 | 1981-07-03 | Method of deep drawing for aluminum three-layer laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02187298A (en) * | 1989-01-13 | 1990-07-23 | Hitachi Ltd | Pressurizing apparatus |
-
1981
- 1981-07-03 JP JP56103266A patent/JPS585214A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02187298A (en) * | 1989-01-13 | 1990-07-23 | Hitachi Ltd | Pressurizing apparatus |
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