JP3117423U - Aluminum alloy housing shape material structure - Google Patents
Aluminum alloy housing shape material structure Download PDFInfo
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- JP3117423U JP3117423U JP2005005003U JP2005005003U JP3117423U JP 3117423 U JP3117423 U JP 3117423U JP 2005005003 U JP2005005003 U JP 2005005003U JP 2005005003 U JP2005005003 U JP 2005005003U JP 3117423 U JP3117423 U JP 3117423U
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Abstract
【課題】プレスフォージング加工作業によって精密なサイズ、細部及び外観が美しいアルミ合金筐体の素形材構造を提供する。
【解決手段】アルミ合金筐体の素形材構造は、既定形状の金型によって、少なくとも一回の前成型プレスフォージング工程を行い、軟化したアルミ合金板材を筐体製品凡その外形の素形材構造に鍛造する。その素形材構造は既定部位に少なくとも嵌合部位、ボス、凸条部位、陥没部位、デザイン部位等の構造形体を設置し、製品の要求に従って最後の切辺、加工処理を行い、表面品質に優れ、サイズ精度が高く、良好な放熱性を具える。
【選択図】図1
The present invention provides an aluminum alloy housing shape material structure that is beautiful in precision size, detail and appearance by press forging processing work.
The shape of the aluminum alloy casing is determined by performing at least one pre-molding press-forging process using a predetermined-shaped mold, and using the softened aluminum alloy sheet to form the outline of the casing product. Forging into a material structure. The shape of the material structure is at least a fitting part, a boss, a ridge part, a depression part, a design part, etc. in the predetermined part. Excellent size accuracy and good heat dissipation.
[Selection] Figure 1
Description
本考案は、アルミ合金筐体の素形材構造に関するもので、プレスフォージング加工作業によって精度の高いサイズ、細部及び表面品質に優れたものである。 The present invention relates to a base material structure of an aluminum alloy housing, and is excellent in high-precision size, details and surface quality by press forging work.
今日、携帯電話、PDA,ノート型PC等3C携帯電子機器は、軽量、強度、防電磁波性に優れた商品が求められ、製品の筐体は、プラスチック材から軽金属へと移行している。加えて環境保護意識が高まり、欧州、日本では近年電子機器に関する回収法令が実施されている(例として欧州同盟では電子製品は75%の回収材の要求がある)。回収性を具えた軽金属は3C製品の筐体としてプラスチック材から取って代わろうとしている。 Today, 3C portable electronic devices such as mobile phones, PDAs, and notebook PCs require products that are lightweight, strong, and have excellent anti-electromagnetic properties, and the housing of products is shifting from plastic materials to light metals. In addition, awareness of environmental protection has increased, and in Europe and Japan, collection laws and regulations on electronic devices have been implemented in recent years (for example, the European Union requires 75% of recovered materials for electronic products). Light metal with recoverability is going to replace plastic material as the case of 3C products.
一般的な金属材は、プラスチック材より重いが、強度は強い。アルミニウム、マグネシウム、チタン等の金属材を使用すれば、軽量、高強度の製品となる。アルミ合金は軽量で、放熱性がよく、防電磁性も高く、硬さ、可塑性も高く、各産業が注目している。 A general metal material is heavier than a plastic material, but is stronger. If a metal material such as aluminum, magnesium, or titanium is used, the product becomes light and strong. Aluminum alloys are light and have good heat dissipation, high anti-electromagnetic properties, high hardness, and high plasticity.
一般的にアルミ合金の成型は、ダイカスト成形、チクソモールティング成形、鍛造、プレス及び機械切削等の技術があるが、目下アルミ合金はダイカスト成形、チクソモールティング成形が主流である。そのうち、ダイカスト成形の加工品質は材料自身の流動性を採用しているため、薄肉の部品成形は難度が高くなり、不良率も上がる、そのため、補修等の人件費がかかり、コストが高くなる。 Generally, aluminum alloy molding includes techniques such as die casting, thixo molding, forging, pressing, and machine cutting. Currently, die casting and thixo molding are mainly used for aluminum alloys. Among them, since the processing quality of die casting adopts the fluidity of the material itself, the molding of thin-walled parts becomes more difficult and the defect rate also increases. Therefore, labor costs such as repairs are required and the cost increases.
しかしながら、3C機器の筐体は、どんどん薄くなっているのは明らかである。
アルミ合金は、鍛造によって材料を大きく変化させることができ、局部を薄くしたり、厚くしたりして、変化の多い欠切面及びボスや凸条部位を成形できる。更に鍛造製品の表面は非常に光沢があり、製品の表面処理がしやすい。そのため、アルミ合金(もしくはマグネシウム合金、アルミマグネシウム合金)の筐体製品の加工について言うと、応用価値を具える。例として日本のソニー、日立金属及び東京精鍛所が共同で開発したマグネシウム合金鍛造のMDプレイヤーの筐体は前述した凸条部位及び変化の多い欠切面部位に優位を示す、しかし、マグネシウム合金鍛造には、成型性が不足しており(例として筐体の接合は、ネジによって固定する方式にしなければならない)、変形しやすく、素形材表面の鍛造による陥没等の問題が発生している。
However, it is clear that the casing of 3C equipment is getting thinner and thinner.
The aluminum alloy can greatly change the material by forging, and the cut-out surface and the boss and the ridge portion with many changes can be formed by making the local portion thinner or thicker. Furthermore, the surface of the forged product is very glossy, and the surface treatment of the product is easy. Therefore, when it comes to processing of aluminum alloy (or magnesium alloy, aluminum magnesium alloy) housing products, it has application value. As an example, the case of a magnesium alloy forged MD player jointly developed by Sony Japan, Hitachi Metals, and Tokyo Seikosho, shows superiority in the above-mentioned convex part and various notched parts, but magnesium alloy forging Has insufficient formability (for example, the case must be fixed with screws), is easily deformed, and has problems such as depression due to forging of the surface of the material. .
純アルミニウムは広い温度範囲内で、複雑な形状に鍛造できる。ほとんどのアルミ合金もまた鍛造しやすい性質を具える。主な原因としてアルミ合金の構造は面心立法構造(FCC)で、最も多くの滑動システムを具え、マグネシウム合金のHCP構造と比較して鍛造成型の材料として適している。しかし、アルミ合金の合金元素添加量を増やすと流変強度が高まり、高すぎる鍛造温度もまた過熱を引き起こし、結晶粒が急速に成長し、結晶溶解等の問題が発生した場合、困難になる。そのうち、アルミ合金の流変強度増加の主要元素は、Cu、Mg、Si等で、端架け金:属はCr、Mn、Ti、V、Zr等である。 Pure aluminum can be forged into a complex shape within a wide temperature range. Most aluminum alloys are also easy to forge. The main cause is that the aluminum alloy structure is face-centered cubic (FCC), which has the most sliding system and is suitable as a forging material compared to the magnesium alloy HCP structure. However, increasing the alloying element addition amount of the aluminum alloy increases the flow change strength, and a forging temperature that is too high also causes overheating, which becomes difficult when crystal grains grow rapidly and problems such as crystal dissolution occur. Among them, the main elements for increasing the flow strength of aluminum alloys are Cu, Mg, Si and the like, and the metal clasps: the genus is Cr, Mn, Ti, V, Zr and the like.
解決しようとする問題点は、これらの合金元素を多く含むアルミ合金が組織中、不連続相を形成し、可塑性が分断され、鍛造性が弱まる。鍛造変形過程において、材料の強度は明らかに下がり、必要な圧力も高くなり、不均衡化や劣化現象が発生する点である。 The problem to be solved is that an aluminum alloy containing a large amount of these alloy elements forms a discontinuous phase in the structure, the plasticity is divided, and the forgeability is weakened. In the forging deformation process, the strength of the material is clearly reduced, the required pressure is also increased, and imbalance and deterioration phenomenon occur.
本考案は、既定形状の金型によって、少なくとも一回の前成型プレスフォージング工程を行い、軟化したアルミ合金板材を筐体製品凡その外形の素形材構造に鍛造する。その素形材構造は既定部位に少なくとも嵌合部位、ボス、凸条部位、陥没部位、デザイン部位等の構造形体を設置し、製品の要求に従って最後の切辺、加工処理を行い、外観が精緻で、サイズの精度が高く、良好な放熱性を具えることを最も主要な特徴とする。 In the present invention, at least one pre-molding press forging process is performed by a mold having a predetermined shape, and a softened aluminum alloy sheet is forged into a shape material structure having an outline of a casing product. The shape of the material structure is a predetermined part with at least a fitting part, boss, ridge part, depression part, design part, etc. Therefore, the main features are high accuracy of size and good heat dissipation.
本考案のアルミ合金筐体の素形材構造は、プレスフォージング加工作業によって精密なサイズ、細部及び表面品質に優れるという利点がある。 The base material structure of the aluminum alloy housing of the present invention has the advantage that it is excellent in precision size, detail and surface quality due to press forging work.
本考案のアルミ合金筐体の素形材構造の基本構造は、図1に示すとおり、既定形状の金型、例として各種携帯電子機器1携帯電話、PDA等を、少なくとも一回の前成型プレスフォージング工程を行い、軟化したアルミ合金板を製品筐体の凡その外形である素形材構造10にプレス鍛造する。その素形材構造10は、既定部位に少なくとも嵌合部位11、ボス12、凸条部位13、陥没部位14、デザイン部位14等の構造形体を設置する。 As shown in Fig. 1, the basic structure of the aluminum alloy casing of the present invention is a mold with a predetermined shape, such as various portable electronic devices, 1 mobile phone, PDA, etc. A forging process is performed, and the softened aluminum alloy plate is press-forged into the raw material structure 10 which is the approximate outer shape of the product housing. In the raw material structure 10, structural features such as at least a fitting portion 11, a boss 12, a ridge portion 13, a depressed portion 14, and a design portion 14 are installed in a predetermined portion.
実施時、まずアルミ合金板材に少なくとも一回の前成型プレスフォージング、一回の主成型プレスフォージング工程を実施する。そのうち、先ずアルミ合金基材をアルミ合金板材にし、続いてアルミ合金板材を加熱方式によって軟化固体にする。
同時に既定形状の金型に入れて少なくとも一回の前成型プレスフォージング工程を行い、軟化アルミ合金板材を製品の凡そ外形のアルミ合金半製品にプレス加工する。実施時、アルミ合金材料を規定された鍛造温度で成型する為、アルミ合金板材は強制空気循環及び自動温度調節機能が設置された抵抗炉内で過熱し、炉内の温度平均度を厳しく管理する。この他鍛造用金型にも予熱を施し、金属の流動性を高めて型孔を充填しやすくする。
At the time of implementation, first, at least one pre-molding press forging and one main molding press forging process are performed on the aluminum alloy sheet. Among them, first, the aluminum alloy base material is made into an aluminum alloy plate, and then the aluminum alloy plate is made into a softened solid by a heating method.
At the same time, it is put into a mold having a predetermined shape and subjected to at least one pre-molding press forging process, and the softened aluminum alloy sheet is pressed into an aluminum alloy semi-finished product having a roughly outer shape of the product. At the time of implementation, the aluminum alloy material is molded at the specified forging temperature, so the aluminum alloy sheet is overheated in a resistance furnace equipped with forced air circulation and automatic temperature control function, and the temperature average degree in the furnace is strictly controlled. . In addition to this, the forging die is also preheated to enhance the fluidity of the metal and make it easier to fill the mold hole.
次に主成型プレスフォージング工程を実施する前に、先ず熱くなっているアルミ合金半製品を冷ます。そして前成型工程の加工温度より下がったら、既定形状の金型にアルミ合金半製品を入れ、最後に主成型プレスフォージング工程に進む。製品の嵌合部位、陥没部位、ボス、凸条部位等細部構造を成形して前述の筐体素形材構造が完成する。鍛造が完成した筐体素形材構造は最良の硬さを形成する。 Next, the hot aluminum alloy semi-finished product is first cooled before performing the main molding press forging process. And when it falls from the processing temperature of a pre-molding process, an aluminum alloy semi-finished product is put into the metal mold | die of a predetermined shape, and finally it progresses to the main molding press forging process. A detailed structure such as a fitting part, a depression part, a boss, and a ridge part of the product is formed to complete the above-described case element structure. The forged body structure forms the best hardness.
最後に製品の必要に応じて辺切、各種加工処理を行う。これらによって、表面品質に優れ、サイズ精度が高く、且つ放熱性の高いアルミ合金筐体構造が完成する。 Finally, cutting and various types of processing are performed as necessary for the product. As a result, an aluminum alloy housing structure having excellent surface quality, high size accuracy, and high heat dissipation is completed.
本考案は成型の必要な製品の形に基づき、先ず前成型の暫定型プレスフォージング、続いて前成型の一時プレスフォージングを行い、次に前成型プレスフォージングを行い、筐体の予定形式を形成し、加工処理後に色づけ工程に入り、色づけ工程は噴射式もしくは陽極処理法で行う。 The present invention is based on the shape of the product that needs to be molded. First, pre-molding provisional press forging, followed by pre-molding temporary press forging, then pre-molding press forging, and the expected form of the housing. After the processing, the coloring process is performed. The coloring process is performed by a spraying method or an anodizing method.
10 素形材構造
11 嵌合部位
12 ボス
13 凸条部位
14 陥没部位
15 デザイン部位
10 Material structure
11 Mating part
12 Boss
13 Convex part
14 Depression site
15 Design site
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005005003U JP3117423U (en) | 2005-06-29 | 2005-06-29 | Aluminum alloy housing shape material structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005005003U JP3117423U (en) | 2005-06-29 | 2005-06-29 | Aluminum alloy housing shape material structure |
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| Publication Number | Publication Date |
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| JP3117423U true JP3117423U (en) | 2006-01-05 |
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| JP2005005003U Expired - Fee Related JP3117423U (en) | 2005-06-29 | 2005-06-29 | Aluminum alloy housing shape material structure |
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| JP (1) | JP3117423U (en) |
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2005
- 2005-06-29 JP JP2005005003U patent/JP3117423U/en not_active Expired - Fee Related
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