JP2014151343A - Metal plate drawing method - Google Patents
Metal plate drawing method Download PDFInfo
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- JP2014151343A JP2014151343A JP2013023011A JP2013023011A JP2014151343A JP 2014151343 A JP2014151343 A JP 2014151343A JP 2013023011 A JP2013023011 A JP 2013023011A JP 2013023011 A JP2013023011 A JP 2013023011A JP 2014151343 A JP2014151343 A JP 2014151343A
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- Prior art keywords
- metal plate
- synthetic resin
- resin film
- drawing method
- aluminum alloy
- 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.)
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 47
- 239000002184 metal Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 22
- 239000000057 synthetic resin Substances 0.000 claims abstract description 22
- 239000011888 foil Substances 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 9
- 239000000314 lubricant Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 6
- 230000037303 wrinkles Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000005025 cast polypropylene Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
本発明は、金属板の絞り成形法に関する。 The present invention relates to a drawing method of a metal plate.
なお、この明細書において、金属板には箔も含まれるものとする。 In this specification, the metal plate includes a foil.
金属板を成形するのに、金型による絞り成形は従来からよく知られている。ところで、製品の深さを深く成形したい場合、つぎの２つの方法のうち何れかが採用されている。その１つは、成形するさいに潤滑剤を使用するとともに絞り工程を多段にするものであり、他の１つは、成形性の向上を図るため、材料である金属板の厚さを厚くしてその強度を上げるものである。 For forming a metal plate, drawing with a mold has been well known. By the way, when it is desired to form the product deeply, one of the following two methods is employed. One is to use a lubricant for forming and a multi-stage drawing process, and the other is to increase the thickness of the metal plate as a material in order to improve the formability. To increase its strength.
しかしながら、上記の方法には，つぎの問題点がある。すなわち、潤滑剤を使用して多段成形を行う場合は、製品の内面にショックラインが発生して平滑性を害し、外観が悪くなる。さらに、潤滑剤を使用すると、製品に潤滑剤成分が残るので、食品、化粧品、医薬品の容器として使用されるものや絞り成形の後工程で成型品に塗装を施すものでは、必然的に成形後洗浄工程が必要になり、コストアップを招くことになる。また、成形が多段になるに伴って必要な金型数が増加し、そのため金型の管理や段取り替えの手間が増えるという不利がある。材料である金属板の厚さを厚くする場合は、当然のことながら、材料コストが増加し、製品の重量も増えるという不利がある。 However, the above method has the following problems. That is, when multistage molding is performed using a lubricant, a shock line is generated on the inner surface of the product, the smoothness is impaired, and the appearance is deteriorated. In addition, if a lubricant is used, the lubricant component remains in the product. Therefore, if the product is used as a container for foods, cosmetics, or pharmaceuticals, or if the molded product is coated in the post-drawing process, it must be formed after molding. A cleaning process is required, resulting in an increase in cost. In addition, as the number of molding steps increases, the number of necessary dies increases, and there is a disadvantage in that the time required for die management and changeover increases. When the thickness of the metal plate as the material is increased, it is a matter of course that the material cost increases and the weight of the product also increases.
また、傾斜側壁を有する製品を絞り成形する場合、側壁に深さ方向の折れ皺が発生して平滑な側面が得られず、傾斜が大きくなるにしたがい、また深さが深くなるに伴い、重なり皺が発生して破断してしまうという問題もある。さらに、金型による絞り成形では、材料である金属板が必ず金型と直接接するので、製品に傷が生じるという問題もある。 In addition, when a product having an inclined side wall is formed by drawing, a crease in the depth direction is generated on the side wall so that a smooth side surface cannot be obtained, and as the inclination increases, the overlap increases as the depth increases. There is also a problem that wrinkles occur and break. Further, in the drawing molding using a mold, the metal plate as a material always comes into direct contact with the mold, so that there is a problem that the product is damaged.
本発明の目的は、上記のような問題のある潤滑剤の使用をなくするとともに、多段成形を廃しかつ不必要に厚さの厚い材料の金属板を使用することなく所望の成形製品を得ることができ、さらに傾斜側壁を有する製品を成形するさいも側壁に皺が生じないばかりか、金型との接触傷も生じない金属板の絞り成形法を提供することにある。 The object of the present invention is to eliminate the use of the above-mentioned problematic lubricants and to obtain a desired molded product without using multi-stage molding and without using an unnecessarily thick metal plate. Further, it is an object of the present invention to provide a drawing method of a metal plate which not only causes wrinkles on the side wall but also does not cause contact damage with the mold when forming a product having an inclined side wall.
請求項１の発明による金属板の絞り成形法は、金属板を絞り成形するに当たり、この金属板の上下両面を合成樹脂フイルムまたは金属箔の表裏両面を合成樹脂フイルムで被覆接合した積層体で挟むか、或いは金属板の上下両面のうち一方を合成樹脂フイルムで、他方を積層体で挟んで成形することを特徴とするものである。 In the drawing forming method of the metal plate according to the first aspect of the invention, when the metal plate is drawn, the upper and lower surfaces of the metal plate are sandwiched with a synthetic resin film or a laminate in which both front and back surfaces of the metal foil are coated and bonded with a synthetic resin film. Alternatively, the metal plate is formed by sandwiching one of the upper and lower surfaces of the metal plate with a synthetic resin film and the other with a laminate.
上記において、強度が小さいか薄い金属板や金属箔を絞り成形する場合は、合成樹脂フイルムを使用する。強度が大きいか厚い金属板の場合は、合成樹脂フイルムでは相対的に強度が不足するため、搾り成形時に合成樹脂フイルムが破れ、その結果絞り成形時に金属板に皺が生じるからである。したがって、この場合は、積層体を使用する。 In the above, when a low-strength or thin metal plate or metal foil is formed by drawing, a synthetic resin film is used. In the case of a metal plate having a high strength or a thick metal plate, the strength of the synthetic resin film is relatively insufficient, so that the synthetic resin film is torn during squeeze molding, resulting in wrinkling of the metal plate during drawing. Therefore, in this case, a laminate is used.
請求項２の発明は、請求項１記載の金属板の絞り成形法において、合成樹脂フイルムまたは積層体の厚さが、金属板の厚さの０．５〜３．５倍であることを特徴とするものである。 The invention of claim 2 is characterized in that, in the drawing method of the metal plate according to claim 1, the thickness of the synthetic resin film or the laminate is 0.5 to 3.5 times the thickness of the metal plate. It is what.
上記金属板は、１０%〜６０%の伸び率を有しかつ５０MPa以上の引っ張り強さを有するものであり、金属の具体例としては、アルミニウム、銅、鉄、銀、ニッケル、ステンレス、モリブデン、チタン、マグネシウム、タンタルおよびこれらの合金を挙げることができる。 The metal plate has an elongation of 10% to 60% and a tensile strength of 50 MPa or more. Specific examples of the metal include aluminum, copper, iron, silver, nickel, stainless steel, molybdenum, Mention may be made of titanium, magnesium, tantalum and their alloys.
また、上記金属板は、０．０３mm〜３．５mmの厚さを有するものである。 The metal plate has a thickness of 0.03 mm to 3.5 mm.
上記の合成樹脂フイルムおよび積層体に用いられる合成樹脂フイルムにおける合成樹脂の具体例としては、CPP, ナイロン、ポリエチレンおよびポリプロピレンを挙げることができる。 Specific examples of the synthetic resin in the synthetic resin film and the synthetic resin film used for the laminate include CPP, nylon, polyethylene and polypropylene.
本発明による金属板の絞り成形法は、金属板を絞り成形するに当たり、この金属板の上下両面を合成樹脂フイルムまたは金属箔の表裏両面を合成樹脂フイルムで被覆接合した積層体で挟むか、或いは金属板の上下両面のうち一方を合成樹脂フイルムで、他方を積層体で挟んで成形する金属板を絞り成形するものであるから、成形する際、金型に接するのは、金属板より滑りの良い合成樹脂フイルムであり、上記問題のある潤滑剤の使用が不必要となりかつ多段成形の必要もないし、不必要に金属板の厚さを厚くすることもない。また、金属板が直接金型に接しないので、金属板に傷がつくことはない。さらに、傾斜側壁を有する製品を絞り成形する場合も金属板は合成樹脂フイルムと接するので、重なり皺が発生することもない。そして、本発明によれば、成形性が向上するので、従来よりも多くの製品形状のものを設計できるし、従来であれば絞りにくい材料でもより深く成形できるし、薄い材料を用いることが可能となるので、製品を軽量化できる。しかも、多段成形しなくても１段成形で所望の製品が得られるので、ショックラインの発生がなく、金型費用も低減できる。 The drawing method of the metal plate according to the present invention, when the metal plate is drawn, is sandwiched between the upper and lower surfaces of the metal plate with a synthetic resin film or a laminate in which both front and back surfaces of the metal foil are coated and bonded with a synthetic resin film, or Since the metal plate is formed by drawing one of the upper and lower surfaces of the metal plate with a synthetic resin film and the other with a laminate, the metal plate is more slippery than the metal plate. It is a good synthetic resin film, the use of the above-mentioned problematic lubricant is unnecessary, multistage molding is not required, and the thickness of the metal plate is not unnecessarily increased. Moreover, since the metal plate does not directly contact the mold, the metal plate is not damaged. Further, when a product having an inclined side wall is drawn, the metal plate is in contact with the synthetic resin film, so that no overlapping wrinkles occur. In addition, according to the present invention, since the moldability is improved, it is possible to design products having more product shapes than before, and it is possible to mold deeper even with materials that are difficult to squeeze conventionally, and it is possible to use thin materials Therefore, the product can be reduced in weight. In addition, since a desired product can be obtained by one-stage molding without performing multi-stage molding, there is no occurrence of a shock line and the mold cost can be reduced.
まず、アルミニウム合金箔(１)の上下両面を２枚の積層体(２)で挟む。この積層体(２)はアルミニウム合金箔(３)の上下両面を合成樹脂フイルム(４) (５)で被覆接合したものである。つぎに、両積層体(２)の金型と接する面に潤滑油を塗布する。このようにしてから、２枚の積層体(２)で挟まれたアルミニウム合金箔(１)を最初下型(７)と同一高さに位置する中央の皺押さえ(６)の上に置き、上型(８)を降下して中央の皺押さえ(６)とで挟んできらに降下せしめて、図１に示すように、下型(７)とでフランジ(９)付き外向き傾斜壁(１０)を備えた容器(１１)を絞り成形する。 First, the upper and lower surfaces of the aluminum alloy foil (1) are sandwiched between two laminates (2). This laminate (2) is obtained by covering and joining the upper and lower surfaces of an aluminum alloy foil (3) with a synthetic resin film (4) (5). Next, lubricating oil is applied to the surfaces of both laminates (2) in contact with the mold. After that, the aluminum alloy foil (1) sandwiched between the two laminates (2) is first placed on the center punch (6) located at the same height as the lower die (7). The upper die (8) is lowered and lowered between the center heel presser (6), and as shown in FIG. 1, the lower die (7) and the outward inclined wall with flange (9) ( The container (11) provided with 10) is drawn.
図１は、アルミニウム合金箔(１)の上下両面を積層体(２)で挟んだものであるが、アルミニウム合金箔(１)の上下両面を合性樹脂フイルムで挟んでもよいし、さらにはアルミニウム合金箔(１)の上下両面のうち片面に１枚の積層体を配し、同他面に１枚の合性樹脂フイルムを配してもよい。 In FIG. 1, the upper and lower surfaces of the aluminum alloy foil (1) are sandwiched between the laminates (2). However, the upper and lower surfaces of the aluminum alloy foil (1) may be sandwiched with a compatible resin film, or aluminum. One laminated body may be arranged on one side of the upper and lower surfaces of the alloy foil (1), and one compatible resin film may be arranged on the other side.
(１) アルミニウム合金箔
(２) 積層体
(３) 積層体のアルミニウム合金箔
(４)(５) 合成樹脂フイルム
(６) 皺押さえ
(７) 下型
(８) 上型
(１０) 傾斜壁
(１１) 容器
(1) Aluminum alloy foil
(2) Laminate
(3) Laminated aluminum alloy foil
(4) (5) Synthetic resin film
(6) Reed holder
(7) Lower mold
(8) Upper mold
(10) Inclined wall
(11) Container
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013023011A JP6155037B2 (en) | 2013-02-08 | 2013-02-08 | Drawing process for metal sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013023011A JP6155037B2 (en) | 2013-02-08 | 2013-02-08 | Drawing process for metal sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2014151343A true JP2014151343A (en) | 2014-08-25 |
| JP6155037B2 JP6155037B2 (en) | 2017-06-28 |
Family
ID=51573744
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013023011A Active JP6155037B2 (en) | 2013-02-08 | 2013-02-08 | Drawing process for metal sheet |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170049410A (en) * | 2015-10-27 | 2017-05-10 | 쇼와 덴코 패키징 가부시키가이샤 | Small electronic apparatus case and aluminum alloy rolling laminated plate for small electronic apparatus case |
| US11633769B2 (en) | 2015-10-27 | 2023-04-25 | Resonac Packaging Corporation | Chassis for small electronic device and method for forming same, and rolled aluminum alloy laminated sheet material for chassis for small electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149727A (en) * | 1979-05-11 | 1980-11-21 | Furukawa Alum Co Ltd | Press forming method for sheet of aluminum or aluminum-alloy |
| JPH0189814U (en) * | 1987-11-30 | 1989-06-13 | ||
| JPH0335824A (en) * | 1989-07-03 | 1991-02-15 | Nippon Steel Corp | Method for deep drawing titanium sheet |
| JP2004338218A (en) * | 2003-05-15 | 2004-12-02 | Mitsubishi Steel Mfg Co Ltd | Composite material and plastically-processed article using the same |
| JP2006015385A (en) * | 2004-07-02 | 2006-01-19 | Showa Denko Packaging Co Ltd | Lubricant for aluminum foil press forming, and method for manufacturing container by using the same |
-
2013
- 2013-02-08 JP JP2013023011A patent/JP6155037B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55149727A (en) * | 1979-05-11 | 1980-11-21 | Furukawa Alum Co Ltd | Press forming method for sheet of aluminum or aluminum-alloy |
| JPH0189814U (en) * | 1987-11-30 | 1989-06-13 | ||
| JPH0335824A (en) * | 1989-07-03 | 1991-02-15 | Nippon Steel Corp | Method for deep drawing titanium sheet |
| JP2004338218A (en) * | 2003-05-15 | 2004-12-02 | Mitsubishi Steel Mfg Co Ltd | Composite material and plastically-processed article using the same |
| JP2006015385A (en) * | 2004-07-02 | 2006-01-19 | Showa Denko Packaging Co Ltd | Lubricant for aluminum foil press forming, and method for manufacturing container by using the same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170049410A (en) * | 2015-10-27 | 2017-05-10 | 쇼와 덴코 패키징 가부시키가이샤 | Small electronic apparatus case and aluminum alloy rolling laminated plate for small electronic apparatus case |
| KR102500876B1 (en) * | 2015-10-27 | 2023-02-21 | 가부시키가이샤 레조낙·패키징 | Small electronic apparatus case and aluminum alloy rolling laminated plate for small electronic apparatus case |
| US11633769B2 (en) | 2015-10-27 | 2023-04-25 | Resonac Packaging Corporation | Chassis for small electronic device and method for forming same, and rolled aluminum alloy laminated sheet material for chassis for small electronic device |
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| JP6155037B2 (en) | 2017-06-28 |
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