JP2000309808A - Metal parts, and its manufacture - Google Patents
Metal parts, and its manufactureInfo
- Publication number
- JP2000309808A JP2000309808A JP11113121A JP11312199A JP2000309808A JP 2000309808 A JP2000309808 A JP 2000309808A JP 11113121 A JP11113121 A JP 11113121A JP 11312199 A JP11312199 A JP 11312199A JP 2000309808 A JP2000309808 A JP 2000309808A
- Authority
- JP
- Japan
- Prior art keywords
- shape
- base
- metal
- die
- complicated
- 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
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、各種機器に用いる
複雑な形状の金属部品及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal part having a complicated shape used for various devices and a method for manufacturing the same.
【0002】[0002]
【従来の技術】この種の金属部品の一つに、軸部の一端
に異形状の加工部を備えたものがある。このような部品
は、従来、精密旋盤の機械加工により、又は精密鋳造に
より、又は粉末冶金法により作られている。2. Description of the Related Art As one of such metal parts, there is a metal part provided with a deformed portion at one end of a shaft portion. Such parts are conventionally made by machining a precision lathe or by precision casting or by powder metallurgy.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、一般
に、小型の金属部品の一部に例えば3次元的複雑形状を
設けることは非常に難しく、またこのような金属部品を
製造する場合、従来の加工技術では、量産性に適さない
ためコスト高になるという問題がある。However, in general, it is very difficult to provide, for example, a three-dimensional complicated shape in a part of a small metal part, and when manufacturing such a metal part, a conventional processing technique is used. However, there is a problem that the cost is high because the method is not suitable for mass production.
【0004】本発明は、このような従来の問題を解決す
るものであり、複雑な異形状の加工が容易で、量産性に
優れ、製造コストの低減を図ることのできる金属部品及
びその製造方法を提供することを目的とする。[0004] The present invention is to solve such a conventional problem, and it is easy to process complicated irregular shapes, is excellent in mass productivity, and can reduce the manufacturing cost, and a method of manufacturing the same. The purpose is to provide.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明においては、金属部品を、基本形状を有する
基部と、この基部にメタルインジェクション成形を用い
て一体的に形成する加工部とにより構成し、加工部に複
雑な異形状を形成する。In order to achieve the above object, the present invention provides a metal part having a base having a basic shape, and a processing part formed integrally with the base by metal injection molding. And form a complicated irregular shape in the processed part.
【0006】これにより、金属部品に複雑な異形状の加
工を容易にするとともに、優れた量産性により製造コス
トの低減を図る。[0006] This facilitates the processing of complicated and differently shaped metal parts and reduces the manufacturing cost due to excellent mass productivity.
【0007】[0007]
【発明の実施の形態】本発明の請求項1に記載の金属部
品は、基本形状を有する基部と、前記基部に一体的に形
成されたメタルインジェクション成形品からなる加工部
とを備えたものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A metal part according to a first aspect of the present invention includes a base having a basic shape, and a processed part formed of a metal injection molded article integrally formed with the base. is there.
【0008】上記構成により、金属部品に複雑な異形状
の加工を容易にする。[0008] With the above configuration, it is possible to easily process a complicated irregular shape on a metal part.
【0009】本発明の請求項2に記載の金属部品は、請
求項1の構成において、基本形状を有する基部に仕上が
り品を用いたものである。According to a second aspect of the present invention, there is provided the metal part according to the first aspect, wherein a finished product is used for a base having a basic shape.
【0010】上記構成により、金属部品の複雑な異形状
の加工とともに、金属部品全体の加工を容易にする。[0010] With the above configuration, the machining of the entire metal part is facilitated as well as the processing of the complicated different shape of the metal part.
【0011】本発明の請求項3に記載の金属部品の製造
方法は、基本形状を有する基部材料を金型にインサート
し、インジェクション成形により基部材料に加工部を形
成するものである。According to a third aspect of the present invention, there is provided a method of manufacturing a metal part, comprising inserting a base material having a basic shape into a mold, and forming a processed portion in the base material by injection molding.
【0012】上記製造方法により、金属部品に複雑な異
形状の加工を容易にして量産性を高め、製造コストを低
減する。According to the above-described manufacturing method, it is possible to easily process a complicated irregular shape on a metal part, to enhance mass productivity, and to reduce the manufacturing cost.
【0013】以下、図を用いて本発明の一実施例につい
て説明する。 (実施例)図1は本発明の一実施例における小型の金属
部品の構成を示すものである。図1において、1は金属
部品の基本形状の基部であり、2は金属部品の加工部で
ある。An embodiment of the present invention will be described below with reference to the drawings. (Embodiment) FIG. 1 shows the configuration of a small metal part according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a base of a basic shape of a metal part, and reference numeral 2 denotes a processed part of the metal part.
【0014】ここで基部1は、円筒状の軸部になってい
て、予め軸部仕上がり品が用いられている。なお、この
軸部の基端部側にフランジを備えている。The base 1 is a cylindrical shaft, and a shaft-finished product is used in advance. In addition, a flange is provided on the base end side of the shaft portion.
【0015】また、加工部2は基部1の基端部側フラン
ジ上に一体的に形成されたメタルインジェクション成形
品であり、ここに複雑な異形状の頭部が形成されてい
る。なお、この頭部は図示のような3次元的複雑形状に
なっている。The processing portion 2 is a metal injection molded product integrally formed on the base end side flange of the base portion 1, and has a complicated and irregularly shaped head. The head has a complicated three-dimensional shape as shown.
【0016】この金属部品の加工部2は、次のようなメ
タルインジェクション成形による製造プロセスにより形
成されている。 (射出成形の工程)まず、基部材料、すなわち軸部仕上
がり品を金型内の所定位置に配置しておき、この金型へ
金属粉末と特殊な合成樹脂の混練材料を高圧で充填し
て、射出成形を行う。The processed part 2 of the metal part is formed by the following manufacturing process by metal injection molding. (Injection molding process) First, a base material, that is, a shaft finished product is arranged at a predetermined position in a mold, and a kneading material of a metal powder and a special synthetic resin is filled into the mold at a high pressure. Perform injection molding.
【0017】なお、ここで、金型には当該3次元的複雑
形状を形成するための型形状を刻設された雄型と雌型と
を備える。また、混練材料の金属粉末は鉄ニッケル系
(FE−NI)及びステンレス系(SUS)がそれぞれ
約40%、純鉄(FE)が約10%、その他が約10%
になっている。SUS系は合金(SUS304、SUS
316、SUS630など)そのものを溶解、合金粉と
して使用され、その他の粉末はそれぞれの用途に応じ、
種々の元素粉を粉末混合機により混合され、混合粉とし
て使用される。粉末の製法には、水アトマイズ法、ガス
アトマイズ法、カーボニール法などがある。混練材料の
合成樹脂はバインダであり、結合剤、可塑剤、滑剤から
なる。これら金属粉末、バインダは、真空混練機、加圧
混練機などが使用され、加熱されながら混練される。混
練材料はそのまま連続して造粒機にかけてPELLET状にさ
れるか、又は塊のまま自然温度で固めて保存される。塊
のままで保存した場合は、成形機に入れる前に、粉砕す
るか、又は造粒機でPELLET状にする。Here, the mold includes a male mold and a female mold engraved with a mold shape for forming the three-dimensional complicated shape. The metal powder of the kneading material is about 40% each of iron-nickel (FE-NI) and stainless steel (SUS), about 10% of pure iron (FE), and about 10% of others.
It has become. SUS alloys (SUS304, SUS
316, SUS630 etc.) itself is used as an alloy powder, and other powders are used according to the respective applications.
Various element powders are mixed by a powder mixer and used as a mixed powder. Powder production methods include a water atomization method, a gas atomization method, and a carbonyl method. The synthetic resin of the kneading material is a binder and comprises a binder, a plasticizer, and a lubricant. These metal powders and binders are kneaded while being heated using a vacuum kneader, a pressure kneader or the like. The kneaded material is continuously put into a granulator to form PELLET or solidified at natural temperature and stored as a mass. When stored as a lump, pulverize or pelletize with a granulator before entering the molding machine.
【0018】(脱脂、焼結の工程)続いて、射出成形に
よる成形品を脱脂、焼結炉に入れて、樹脂分を焼き飛ば
し、金属だけの焼結品に仕上げる。脱脂の工程で、成形
品から保形のための一部のバインダを残すだけで大部分
のバインダが除去される。焼結の工程で、各種金属が必
要とする所定の温度に昇温され、成形品が95〜99%
程度の密度に焼結され、同時にその収縮、硬化により焼
結物が基部材料である軸部仕上がり品の基端部側に固く
結合される。(Steps of degreasing and sintering) Subsequently, the molded product obtained by injection molding is degreased and put into a sintering furnace, where the resin component is burned off and finished into a metal-only sintered product. In the degreasing step, most of the binder is removed from the molded product by leaving only a part of the binder for shape retention. In the sintering process, the temperature of the various metals is raised to the required temperature, and the molded product is 95-99%
The sintered product is sintered to a certain density, and at the same time, the sintered product is firmly bonded to the base end side of the finished shaft part as the base material by the shrinkage and hardening.
【0019】このようにして複雑な異形状を有する金属
部品が仕上げられる。なお、この仕上がり品に、例えば
ねじ切り、表面研磨、塗装などを施す必要がある場合に
は、さらにこれらの後処理が行われる。In this way, a metal part having a complicated irregular shape is finished. If the finished product needs to be subjected to, for example, thread cutting, surface polishing, painting, or the like, these post-processings are further performed.
【0020】このように上記実施例によれば、金属部品
を基本形状を有する基部1と、基部1に一体的に形成
し、結合するメタルインジェクション成形品からなる加
工部2とにより構成し、加工部2に3次元的複雑形状を
形成しているので、金属部品に3次元的複雑形状を容易
に加工することができる。As described above, according to the above embodiment, the metal part is constituted by the base part 1 having the basic shape and the processing part 2 formed of a metal injection molded product integrally formed with the base part 1 and joined. Since the three-dimensional complicated shape is formed in the part 2, it is possible to easily process the three-dimensional complicated shape on the metal part.
【0021】また、金属部品の基本形状を有する基部1
に仕上がり品を用い、この基部材料を金型にインサート
しておくことにより、基部材料にメタルインジェクショ
ン成形により形成した3次元的複雑形状の加工部2を結
合するので、複雑な異形状を有する金属部品全体を容易
に製造することができる。また量産性に適し、コストダ
ウンを図ることができる。A base 1 having the basic shape of a metal part
By using a finished product and inserting the base material into a mold, the processed part 2 having a complicated three-dimensional shape formed by metal injection molding is joined to the base material, so that a metal having a complicated and different shape can be obtained. The whole part can be easily manufactured. In addition, it is suitable for mass production and can reduce costs.
【0022】[0022]
【発明の効果】上記実施例から明らかなように、本発明
の金属部品においては、基本形状を有する基部と、この
基部にメタルインジェクション成形を用いて一体的に形
成する加工部とにより構成し、加工部に複雑な異形状を
形成するようにしているので、金属部品に複雑な異形状
の加工を容易にするとともに、優れた量産性により製造
コストの低減を図ることができる。As is apparent from the above embodiment, the metal part of the present invention is constituted by a base having a basic shape and a processing part integrally formed on the base by metal injection molding. Since the complicated irregular shape is formed in the processed portion, it is possible to easily process the complicated irregular shape on the metal part, and it is possible to reduce the manufacturing cost by excellent mass productivity.
【0023】また、本発明の金属部品の製造方法におい
ては、基本形状を有する基部材料を金型にインサート
し、インジェクション成形により基部材料に加工部を形
成し、結合するので、複雑な異形状を有する金属部品を
容易に製造することができるとともに、量産性の向上と
製造コストの低減を図ることができる。In the method of manufacturing a metal part according to the present invention, a base material having a basic shape is inserted into a mold, and a processed portion is formed on the base material by injection molding and joined, so that a complicated irregular shape is formed. In addition to being able to easily manufacture metal parts having the same, it is possible to improve mass productivity and reduce manufacturing costs.
【図1】(A)本発明の一実施例における金属部品の平
面図 (B)同金属部品の正面図 (C)同金属部品の側面図FIG. 1A is a plan view of a metal part according to an embodiment of the present invention. FIG. 1B is a front view of the metal part. FIG. 1C is a side view of the metal part.
1 基本形状の基部 2 加工部 1 Basic shape base 2 Processing part
Claims (3)
体的に形成されたメタルインジェクション成形品からな
る加工部とを備えたことを特徴とする金属部品。1. A metal component comprising: a base having a basic shape; and a processed portion formed of a metal injection molded product integrally formed with the base.
いる請求項1に記載の金属部品。2. The metal part according to claim 1, wherein a finished product is used for a base having a basic shape.
サートし、メタルインジェクション成形により前記基部
材料に加工部を形成することを特徴とする金属部品の製
造方法。3. A method for manufacturing a metal part, comprising: inserting a base material having a basic shape into a mold; and forming a processed portion in the base material by metal injection molding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11113121A JP2000309808A (en) | 1999-04-21 | 1999-04-21 | Metal parts, and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11113121A JP2000309808A (en) | 1999-04-21 | 1999-04-21 | Metal parts, and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000309808A true JP2000309808A (en) | 2000-11-07 |
Family
ID=14604064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11113121A Pending JP2000309808A (en) | 1999-04-21 | 1999-04-21 | Metal parts, and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000309808A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111185601A (en) * | 2020-02-18 | 2020-05-22 | 嘉兴精科科技有限公司 | Metal injection molding processing method of special-shaped notebook computer rotating shaft |
-
1999
- 1999-04-21 JP JP11113121A patent/JP2000309808A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111185601A (en) * | 2020-02-18 | 2020-05-22 | 嘉兴精科科技有限公司 | Metal injection molding processing method of special-shaped notebook computer rotating shaft |
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