JPH03106521A - Joining method for two parts - Google Patents
Joining method for two partsInfo
- Publication number
- JPH03106521A JPH03106521A JP1245461A JP24546189A JPH03106521A JP H03106521 A JPH03106521 A JP H03106521A JP 1245461 A JP1245461 A JP 1245461A JP 24546189 A JP24546189 A JP 24546189A JP H03106521 A JPH03106521 A JP H03106521A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- outer part
- press
- joining
- plastically
- 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
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005304 joining Methods 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、例えば、インナ部品としてのボス部と、ア
ウタ部品としてのドラム部とをプレス加圧により塑性結
合して、自動変速機用多板クラッチのクラッチドラムを
形成するような２部品の結合方法に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention is capable of plastically bonding, for example, a boss part as an inner part and a drum part as an outer part by pressurization, thereby producing a multi-purpose material for automatic transmissions. This invention relates to a method of joining two parts such as those forming a clutch drum of a plate clutch.
（従来技術）
従来、上述例の２部品の結合方法としては、例えば、特
開昭６０−１２４４２３号公報に記載の塑性結合方法が
ある。(Prior Art) Conventionally, as a method for joining the two parts of the above-mentioned example, there is, for example, a plastic joining method described in Japanese Patent Application Laid-open No. 124423/1983.
すなわち、円形状結合部材をリング状部材周面の凹凸部
と塑性結合させる際、リング状部材のパンチの加圧方向
と反対方向への変形を相殺するように、リング状部材の
変形を許容しつつ押圧部材によりリング状部材を加圧方
向と同方向から押圧する塑性結合方法である。That is, when the circular coupling member is plastically coupled to the uneven portion on the circumferential surface of the ring-shaped member, the ring-shaped member is allowed to deform so as to offset the deformation of the ring-shaped member in the direction opposite to the pressing direction of the punch. This is a plastic bonding method in which a ring-shaped member is pressed from the same direction as the pressing direction using a pressing member.
この従来方法によれば、上述のリング状部材の加圧方向
と反対方向への変形を抑制することができる利点がある
反面、上述のパンチによる円形状結合部材の加圧時に、
上述の凹凸部とは反対の側にも肉流れが生ずるため、円
形状結合部材の充分な圧縮残留応力を得ることができな
い問題点があった。This conventional method has the advantage of being able to suppress deformation of the ring-shaped member in the opposite direction to the pressing direction, but on the other hand, when pressing the circular coupling member with the punch,
Since flesh flow also occurs on the side opposite to the above-mentioned uneven portion, there is a problem that sufficient compressive residual stress cannot be obtained in the circular connecting member.
（発明の目的）
この発明の第１発明は、塑性結合工程の前に圧大または
焼きばめ等により締りばめを行なう予備工程を付加する
ことで、何等プレス加圧力を高めることなく、また上述
の反対側への若干の肉流れが生じてもアウタ部品の内向
きの圧縮残留応力を充分に向上させることができ、２部
品の結合強度を強化することができる２部品の結合方法
の提供を目的とする。(Object of the Invention) The first aspect of the present invention is to add a preliminary process of performing tight fit by compression or shrink fit before the plastic bonding process, thereby eliminating the need to increase the pressing force in any way. To provide a method for joining two parts, which can sufficiently improve the inward compressive residual stress of the outer part even if the meat flows slightly to the opposite side as described above, and can strengthen the joint strength of the two parts. With the goal.
この発明の第２発明は、アウタ部品として例えばアルミ
ニウム製の熱膨張係数が大きい部品を用い、結合される
２部品の軽量化を図りつつ該結合２部品を温間雰囲気中
で使用して、アウタ部品がインナ部品に対して半径方向
外方に膨張しても、上述の締りばめによる締めしろで、
結合強度の低下を抑え、結合力を安定させることができ
る２部品の結合方法の提供を目的とする。A second aspect of the present invention is to use a component made of aluminum with a large coefficient of thermal expansion as the outer component, reduce the weight of the two components to be joined, and use the two joined components in a warm atmosphere. Even if the part expands radially outward relative to the inner part, the tightness provided by the interference fit described above will
The purpose of the present invention is to provide a method for joining two parts that can suppress a decrease in joint strength and stabilize the joint force.
（発明の構成）
この発明の第１発明は、インナ部品外周の凹凸部にアウ
タ部品を塑性結合する２部品の結合方法であって、上記
インナ部品の凹凸部外周に対して上記アウタ部品を締り
ばめする工程と、上記アウタ部品を加圧してインナ部品
の凹凸部にアウタ部品を塑性流動させる工程とを備えた
２部品の結合方法であることを特徴とする。(Structure of the Invention) A first invention of the present invention is a method for joining two parts, which plastically joins an outer part to an uneven part on the outer periphery of the inner part, the outer part being tightened to the outer periphery of the uneven part of the inner part. The present invention is characterized in that it is a method for joining two parts, comprising a step of fitting together, and a step of pressurizing the outer part to cause the outer part to plastically flow into the uneven portion of the inner part.
この発明の第２発明は、上記第１発明の構成に加えて、
アウタ部品の熱膨張係数をインナ部品の熱膨張係数に対
して大きくした２部品の結合方法であることを特徴とす
る。A second invention of the present invention includes, in addition to the configuration of the first invention,
The present invention is characterized by a method of joining two parts in which the coefficient of thermal expansion of the outer part is larger than that of the inner part.
（発明の効果）
この発明の第１発明によれば、アウタ部品を圧入または
焼きばめ等の手段によりインナ部品の凹凸部外周に締り
ばめした後に、アウタ部品をプレス加圧して塑性結合す
るので、上述の締りばめによる締めしろで、アウタ部品
の内向きの圧縮残留応力を高めることができ、この結果
、２部品の結合強度の大幅な向上を図ることができる効
果がある。(Effects of the Invention) According to the first aspect of the present invention, after the outer component is tight-fitted to the outer periphery of the uneven portion of the inner component by means such as press-fitting or shrink-fitting, the outer component is press-pressed and plastically bonded. Therefore, the inward compressive residual stress of the outer component can be increased by the interference caused by the above-mentioned interference fit, and as a result, the bonding strength between the two components can be significantly improved.
また、上述の締りばめ工程は塑性結合工程前段の予備工
程で行なうので、締りばめとして例えば圧入手段を用い
た場合においても、塑性結合工程で用いるプレス装置の
プレス加圧力いわゆるプレスｔｏｎ数は何等高める必要
がない。In addition, since the above-mentioned interference fit process is performed in a preliminary process before the plastic bonding process, even when a press-fitting means is used as the interference fit, the press force of the press device used in the plastic bonding process, so-called press ton number, is There is no need to raise it in any way.
この発明の第２発明によれば、上記第１発明の効果と併
わせで、アウタ部品として熱膨張係数が大きい部品を用
いるので、結合される２部品の軽量化を図りつつ該結合
２部品を温間雰囲気で使用し、上述のアウタ部品がイン
ナ部品に対して半径方向外方に熱膨張しても、上述の締
りばめによる締めしろで、結合強度の低下を抑え、結合
力を安定させることができる効果がある。According to the second aspect of the present invention, in addition to the effects of the first aspect, since a component having a large coefficient of thermal expansion is used as the outer component, the two components to be joined can be lightened and the two components can be joined together. When used in a warm atmosphere, even if the above-mentioned outer part thermally expands radially outward relative to the inner part, the interference provided by the above-mentioned interference fit prevents the decrease in bonding strength and stabilizes the bonding force. There is an effect that can be done.
（実施例） この発明の一実施例を以下図面に基づいて詳述する。(Example) An embodiment of the present invention will be described in detail below based on the drawings.
図面は２部品の結合装置およびその方法を示し、第１図
において、下型取付板ボルスタを介してベッドに固定さ
れる受け部材１を設け、この受け部材１の上部中央には
ボルト２を用いてインナガイド３を取付け、このインナ
ガイド３に案内されるインナ部品４を上述の受け部材１
上面に載置すべく構成している。The drawings show a device and method for joining two parts, and in FIG. The inner guide 3 is attached to the inner part 4 guided by the inner guide 3, and the inner part 4 guided by the inner guide 3 is attached to the receiving member 1 described above.
It is configured to be placed on the top surface.
また、リング状のノックアウト部材５の上面にアウタ部
品６を配設し、このアウタ部品６の外周スプライン形状
部６ａに対応したスプライン内周部７ａを有するダイス
７を設け、このダイス７を上述のアウタ部品６外周部に
配設すると共に、このダイス７をダイスホルダを介して
下型取付板に固定している。Further, an outer part 6 is disposed on the upper surface of the ring-shaped knockout member 5, and a die 7 having a spline inner peripheral part 7a corresponding to the outer peripheral spline shaped part 6a of the outer part 6 is provided. The die 7 is disposed on the outer periphery of the outer part 6 and is fixed to the lower die mounting plate via a die holder.
なお、上述のノックアウト部材５は受け部材１の下部に
設けたノックアウト装置に連結されている。Note that the above-mentioned knockout member 5 is connected to a knockout device provided at the lower part of the receiving member 1.
一方、上型取付板を介してプレス装置のスライドに連動
されるリング状のパンチ８を設け、このパンチ８でアウ
タ部品６の所定部を加圧すべく構成すると共に、上述の
パンチ８の外周に設けたリング状の押え部材９でアウタ
部品６の所定部外周上面を押圧すべく構成している。On the other hand, a ring-shaped punch 8 is provided which is interlocked with the slide of the press device via the upper mold mounting plate, and is configured to apply pressure to a predetermined portion of the outer part 6 with this punch 8. The ring-shaped pressing member 9 is configured to press the upper surface of the outer periphery of a predetermined portion of the outer component 6.
ここで、上述のインナ部品４の外周結合部には、第２図
に示すように環状溝の底部にローレット状の凹凸ｉ４ａ
・・・を予め形成している。Here, as shown in FIG. 2, the outer peripheral joint portion of the inner component 4 has knurling-like unevenness i4a at the bottom of the annular groove.
...is formed in advance.
上述のインナ部品４は自動変速機用多板クラッチのクラ
ッチドラムにおけるボス部となる部品で、この実施例で
は鉄製のインナ部品４を用いている。The above-mentioned inner part 4 is a part that becomes a boss part of a clutch drum of a multi-disc clutch for an automatic transmission, and in this embodiment, the inner part 4 is made of iron.
また、上述のアウタ部品６は自動変速機用多板クラッチ
のクラッチドラムにおけるドラム部となる部品で、この
実施例ではインナ部品に対して熱膨張係数の大きいアル
ミニウム製のアウタ部品６を用いている。Further, the above-mentioned outer part 6 is a part that becomes a drum part in a clutch drum of a multi-disc clutch for an automatic transmission, and in this embodiment, the outer part 6 made of aluminum, which has a larger coefficient of thermal expansion than the inner part, is used. .
第３図は常温時におけるインナ部品４とアウタ部品６と
の寸法関係を示す断面図で、インナ部品４の外径に対し
てアウタ部品６の穴部の内径を小さくして、所定の焼き
ばめ代ｈを得る寸法関係に設定している。FIG. 3 is a cross-sectional view showing the dimensional relationship between the inner part 4 and the outer part 6 at room temperature. The dimensional relationship is set to obtain the margin h.
ここで、上述の焼きばめ代ｈは次式により設定する。Here, the above-mentioned shrink fit allowance h is set by the following formula.
ｈ≧（ｔ２−ｔｌ ） Ｘ Ｉα１ −α２ １×Ｒ
ここにｔ２は製品の最高使用温度
ｔｌは２部品の結合時の温度（常温）
α１はアウタ部品の熱膨張係数
α２はインナ部品の熱膨張係数
Ｒは結合部の半径
次に上述の２部品の結合方法について説明する。h≧(t2−tl) X Iα1 −α2 1×R
Here, t2 is the maximum operating temperature of the product tl is the temperature when the two parts are joined (room temperature) α1 is the coefficient of thermal expansion of the outer part α2 is the coefficient of thermal expansion of the inner part R is the radius of the joint part The joining method will be explained.
まず、上述のアウタ部品６をインナ部品４に対して塑性
結合させる前段の予備工程として、アウタ部品６をイン
ナ部品４の凹凸部４ａ外周に焼きばめする。First, as a preliminary step before plastically bonding the outer component 6 to the inner component 4, the outer component 6 is shrink-fitted to the outer periphery of the uneven portion 4a of the inner component 4.
すなわち、第４図に示す如くアウタ部品６のみを所定温
度に加熱して、該アウタ部品６の穴部の径をインナ部品
４の外径に対して同等もしくはそれ以上に加熱膨張させ
、この状態でアウタ部品６を第５図に示す如くインナ部
品４の凹凸部４ａ外周に嵌め込むと、アウタ部品６は温
度降下による常温時に同図に仮想線で示す如く収縮して
所定の焼きばめ代ｈを得ることができる。That is, as shown in FIG. 4, only the outer part 6 is heated to a predetermined temperature, and the diameter of the hole in the outer part 6 is heated and expanded to be equal to or greater than the outer diameter of the inner part 4, and this state is When the outer part 6 is fitted onto the outer periphery of the uneven portion 4a of the inner part 4 as shown in FIG. 5, the outer part 6 shrinks as shown by the imaginary line in the same figure at room temperature due to a temperature drop, and a predetermined shrink fit allowance is achieved. h can be obtained.
次に、上述の焼きばめ完了後の２部品４．６を第１図に
示す如く、受け部材１およびノックアウト部材５上に載
置する。Next, the two parts 4.6 after the completion of the shrink fitting described above are placed on the receiving member 1 and the knockout member 5, as shown in FIG.
次に、第６図に示すように、パンチ８による加圧に先行
して、プレス装置のスライドを駆動し、上述の押え部材
９でアウタ部品６の所定部外周上面を押圧保持する。Next, as shown in FIG. 6, prior to pressurization by the punch 8, the slide of the press device is driven, and the above-mentioned pressing member 9 presses and holds the upper surface of the outer periphery of a predetermined portion of the outer component 6.
次に、第７図に示すように、上述の押え部材９によるア
ウタ部品６の押圧を保持した状態で、プレス装置のスラ
イドを降下させ、上述のパンチ８でアウタ部品６の所定
部を加圧すると、このアウタ部品６の結合部は同図に示
す如くインナ部品４外周のに凹凸部４ａ方向に塑性流動
して、インナ部品４とアウタ部品６との２部品を塑性結
合することができる。Next, as shown in FIG. 7, the slide of the press device is lowered while the presser member 9 is kept pressing the outer part 6, and a predetermined portion of the outer part 6 is pressed by the punch 8. Then, the connecting portion of the outer component 6 plastically flows in the direction of the uneven portion 4a on the outer periphery of the inner component 4, as shown in the figure, so that the two components, the inner component 4 and the outer component 6, can be plastically bonded.
このように、アウタ部品６を焼きばめ手段によりインナ
部品４の凹凸部４ａ外周に締りばめした後に、アウタ部
品６をプレス加圧して塑性結合するので、上述の締りば
めによる締めしろ即ち焼きばめ代ｈで、アウタ部品６の
内向きの圧縮残留応力を高めることができ、この結果、
アウタ部品６とインナ部品４との２部品の結合強度の大
幅な向上を図ることができる効果がある。In this way, after the outer part 6 is tightly fitted to the outer periphery of the concavo-convex portion 4a of the inner part 4 by the shrink fit means, the outer part 6 is press-pressed and plastically bonded. The shrink fit allowance h can increase the inward compressive residual stress of the outer part 6, and as a result,
This has the effect of significantly improving the bonding strength between the two parts, the outer part 6 and the inner part 4.
また、上述のアウタ部品６として熱膨張係数の大きいア
ルミニウム製の部品を用いると、結合された２部品の軽
量化を図ることができ、この２部品を例えば、自動変速
機での温間（１５０℃程度）で使用した際に熱膨張係数
の相違に伴ない、アウタ部品６がインナ部品４に対して
半径方向外方に膨張しても、上述の焼きばめ代ｈで結合
強度の低下を抑え、結合力を安定させることができる効
果がある。Further, by using an aluminum part with a large coefficient of thermal expansion as the outer part 6, it is possible to reduce the weight of the two joined parts. Even if the outer part 6 expands radially outward with respect to the inner part 4 due to the difference in thermal expansion coefficient when used at a temperature of about It has the effect of suppressing and stabilizing the bonding force.
上述のアウタ部品６を締りばめする工程としては、焼き
ばめ工程に代えて、焼きばめ代ｈと同等の圧入代を有す
る圧人工程であってもよく、温間塑性結合法すなわち冷
間時において必要とする締めしるが得られるように、温
間時にパンチ加圧力を制御して塑性結合する方法であっ
てもよい。The process of tightly fitting the outer parts 6 described above may be a pressing process having a press-fitting allowance equivalent to the shrink-fitting allowance h instead of the shrink-fitting process, or a warm plastic bonding method, that is, a cold-fitting process. A method may also be used in which the punching force is controlled during the warm period to perform plastic bonding so that the required tightening is obtained during the warm period.
第８図はアウタ部品６単体の他の実施例を示し、ダイカ
スト遠心鋳造により穴部周辺６ｂに熱膨張係数が２．８
〜７．３Ｘ１０’で、かつアルミニウムの比重２．７に
対して比重が２．４と低いケイ素Ｓｉを高密度に、他側
６ｃにケイ素Ｓｉを低密度に偏折させた偏折部品をアウ
タ部品６として用いてもよく、ケイ素粉末を含有させた
発泡樹脂製の消失模型を、ダイカスト鋳造型における上
述の穴部周辺６ｂ形成用のキャビティに配設し、該穴部
周辺６ｂにケイ素Ｓｔを偏折させた偏折部品をアウタ部
品６として用いてもよい。FIG. 8 shows another embodiment of the outer part 6 alone, in which the coefficient of thermal expansion is 2.8 around the hole 6b by die-casting and centrifugal casting.
~7.3X10' and has a low specific gravity of 2.4 compared to aluminum's specific gravity of 2.7, with high density silicon Si, and the other side 6c has a polarized component with low density polarized silicon. It may be used as the part 6, and a disappearing model made of foamed resin containing silicon powder is placed in a cavity for forming the above-mentioned hole periphery 6b in a die-casting mold, and silicon St is placed in the hole periphery 6b. A polarized component may be used as the outer component 6.
このように、上述の穴部周辺６ｂのケイ素含有率が高い
偏折部品をアウタ部品６として用いると、ケイ素Ｓｉの
低熱膨張率により、アウタ部晶６の熱膨張を低下させて
、温間使用時における同部品６とインナ部品４との充分
な結合強度を維持する・ことができる効果がある。In this way, when the deflection component having a high silicon content around the hole 6b is used as the outer component 6, the low coefficient of thermal expansion of silicon Si reduces the thermal expansion of the outer crystal 6, making it suitable for warm use. This has the effect of being able to maintain sufficient bonding strength between the same part 6 and the inner part 4 at the same time.
図面はこの発明の一実施例を示し、
第１図は２部品の結合方法に用いる結合装置の断面図、
第２図はインナ部品の凹凸部形状を示す斜視図、第３図
は常温時における２部品の寸法関係を示す断面図、
第４図は焼きばめ工程におけるアウタ部品の加熱状態を
示す断面図、
第５図は焼きばめ工程における２部品の嵌合状態を示す
断面図、
第６図は塑性結合工程における押圧状態を示す断面図、
第７図は塑性結合工程におけるプレス加圧状態を示す断
面図、
第８図はアウタ部品の他の実施例を示す説明図である。
４・・・インナ部品 ４ａ・・・凹凸部６・・・
アウタ部品
第２図
第３図
ム
６・・・アウクｆｌ５Ｊｏ
第４図
第５図
６
アウタ舶品The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional view of a joining device used in a method for joining two parts; FIG. 2 is a perspective view showing the shape of an uneven part of an inner part; and FIG. 4 is a sectional view showing the heating state of the outer part in the shrink fitting process; FIG. 5 is a sectional view showing the fitted state of the two parts in the shrink fitting process; FIG. 6 is a cross-sectional view showing a pressurized state in the plastic bonding step, FIG. 7 is a cross-sectional view showing the press press state in the plastic bonding step, and FIG. 8 is an explanatory view showing another embodiment of the outer part. 4... Inner part 4a... Uneven part 6...
Outer parts Fig. 2 Fig. 3 M6...Auku fl5Jo Fig. 4 Fig. 5 Fig. 6 Outer marine parts
Claims (2)
する２部品の結合方法であって、上記インナ部品の凹凸
部外周に対して上記アウタ部品を締りばめする工程と、 上記アウタ部品を加圧してインナ部品の凹凸部にアウタ
部品を塑性流動させる工程とを備えた ２部品の結合方法。(1) A method for joining two parts, in which an outer part is plastically joined to an uneven part on the outer periphery of the inner part, comprising the steps of tightly fitting the outer part to the outer periphery of the uneven part of the inner part; A method for joining two parts, comprising a step of applying pressure to plastically flow the outer part into the uneven portion of the inner part.
係数が大であることを特徴とする特許請求の範囲第１項
記載の２部品の結合方法。(2) The method for joining two parts according to claim 1, wherein the outer part has a larger coefficient of thermal expansion than the inner part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1245461A JPH03106521A (en) | 1989-09-20 | 1989-09-20 | Joining method for two parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1245461A JPH03106521A (en) | 1989-09-20 | 1989-09-20 | Joining method for two parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03106521A true JPH03106521A (en) | 1991-05-07 |
Family
ID=17134008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1245461A Pending JPH03106521A (en) | 1989-09-20 | 1989-09-20 | Joining method for two parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03106521A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7489056B2 (en) | 2002-10-04 | 2009-02-10 | Hitachi, Ltd. | Method of bonding metallic members by plastic-flow bonding and plastic-flow bonded body |
| US7667360B2 (en) | 2006-04-06 | 2010-02-23 | Nidec Corporation | Rotor unit, bearing mechanism, motor, and data storage disk drive device |
| JP2018520748A (en) * | 2016-03-17 | 2018-08-02 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司Ｆｏｓｈａｎ Ｓｈｕｎｄｅ Ｍｉｄｅａ Ｅｌｅｃｔｒｉｃａｌ Ｈｅａｔｉｎｇ Ａｐｐｌｉａｎｃｅｓ Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｃｏ．，Ｌｉｍｉｔｅｄ | Inner pot for cooking utensils, method for manufacturing the same, cooking utensils |
-
1989
- 1989-09-20 JP JP1245461A patent/JPH03106521A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7489056B2 (en) | 2002-10-04 | 2009-02-10 | Hitachi, Ltd. | Method of bonding metallic members by plastic-flow bonding and plastic-flow bonded body |
| US7667360B2 (en) | 2006-04-06 | 2010-02-23 | Nidec Corporation | Rotor unit, bearing mechanism, motor, and data storage disk drive device |
| JP2018520748A (en) * | 2016-03-17 | 2018-08-02 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司Ｆｏｓｈａｎ Ｓｈｕｎｄｅ Ｍｉｄｅａ Ｅｌｅｃｔｒｉｃａｌ Ｈｅａｔｉｎｇ Ａｐｐｌｉａｎｃｅｓ Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｃｏ．，Ｌｉｍｉｔｅｄ | Inner pot for cooking utensils, method for manufacturing the same, cooking utensils |
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