JP3207376B2 - Metal structural material with shock absorption function - Google Patents
Metal structural material with shock absorption functionInfo
- Publication number
- JP3207376B2 JP3207376B2 JP20445697A JP20445697A JP3207376B2 JP 3207376 B2 JP3207376 B2 JP 3207376B2 JP 20445697 A JP20445697 A JP 20445697A JP 20445697 A JP20445697 A JP 20445697A JP 3207376 B2 JP3207376 B2 JP 3207376B2
- Authority
- JP
- Japan
- Prior art keywords
- structural material
- probe
- impact energy
- metal structural
- substrate
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1275—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding involving metallurgical change
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、自動車、鉄道等
の車両用構造材や建築用構造材等として用いられる衝撃
吸収機能を有する金属製構造材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal structural material having a shock absorbing function used as a structural material for vehicles such as automobiles and railways, and a structural material for buildings.
【０００２】[0002]
【従来の技術】従来、衝撃吸収機能を有する構造材とし
ては、構造材の一部に衝撃吸収機能を有する部材が介在
状態に設けられたものなどが使用されていた。2. Description of the Related Art Heretofore, as a structural material having a shock absorbing function, a material in which a member having a shock absorbing function is interposed in a part of the structural material has been used.
【０００３】例えば、具体的には、図６に示す自動車の
ステアリング用のシャフトを衝撃吸収機能を有する構造
材として例示できる。前記ステアリング用のシャフト
は、軸方向に相対移動可能で周方向には一体に回転する
一組のシャフト本体（１０１）（１０２）の間に、網目
円筒状の衝撃吸収部材（１０３）が、シャフト本体（１
０１）（１０２）の軸線上に介在状態で設けられたシャ
フト（１００）である。このシャフト（１００）は、通
常運転時には全体的に剛性部材として機能するが、自動
車が衝突するなどして大きな衝撃力が発生した場合、衝
撃吸収部材（１０３）が変形することによって当該衝撃
エネルギーを吸収し、運転手を保護することができるも
のである。For example, specifically, a steering shaft of an automobile shown in FIG. 6 can be exemplified as a structural material having a shock absorbing function. The steering shaft has a mesh cylindrical shock absorbing member (103) between a pair of shaft bodies (101) and (102) which are relatively movable in the axial direction and rotate integrally in the circumferential direction. Body (1
01) A shaft (100) provided on the axis of (102) in an interposed state. The shaft (100) functions as a rigid member as a whole during normal operation. However, when a large impact force is generated due to a collision of an automobile or the like, the impact energy is reduced by deformation of the impact absorbing member (103). It can absorb and protect the driver.
【０００４】[0004]
【発明が解決しようとする課題】ところが、ステアリン
グ用のシャフト本来の機能は、一本の棒状部材で発揮し
得るものであるが、前述のステアリング用のシャフトの
ように、衝撃吸収機能を付加するためには、シャフトを
二つに分けてそれぞれに対し特殊な加工を施す必要があ
るとともに、別部材である衝撃吸収部材を必要とし、そ
れらを組み立てる工程等も必要であった。However, the original function of the steering shaft can be exhibited by a single rod-shaped member. However, like the above-described steering shaft, a shock absorbing function is added. In order to do so, it is necessary to divide the shaft into two parts and to perform special processing on each of them, and also requires a separate shock absorbing member, and a step of assembling them.
【０００５】このように、衝撃吸収機能を有する構造材
は、衝撃吸収用の部材やそれを組み込むための部材を多
く必要とし、それぞれの部材に対する特殊な加工や組み
立て工程が必要であるため、構造材全体として重量が増
加するとともに、コストの増加が不可避であった。As described above, a structural material having a shock absorbing function requires many members for absorbing shock and members for incorporating the same, and requires special processing and assembling steps for each member. As the weight of the material as a whole increases, cost increases are inevitable.
【０００６】この発明は、上記問題に鑑みてなされたも
のであり、衝撃吸収用の部材やそれを組み込むための部
材を必要とせず、それぞれの部材の加工や組み立て工程
を省略し得て、軽量かつ低コストを実現し得る衝撃吸収
機能を有する金属製構造材の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and does not require a member for absorbing shock or a member for incorporating the same. Another object of the present invention is to provide a metal structural material having an impact absorbing function that can realize low cost.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、この発明者らは、鋭意研究と努力の結果、金属製構
造材に摩擦撹拌処理を施すことにより、衝撃エネルギー
の吸収値が高くなることを見出だすに至り、この発明を
完成させた。Means for Solving the Problems In order to achieve the above object, the present inventors have made intensive studies and efforts and, as a result, have performed a friction stir processing on a metal structural material so that the impact energy absorption value can be increased. And completed the present invention.
【０００８】即ち、この発明にかかる衝撃吸収機能を有
する金属製構造材は、回転子の端部軸線上に設けられた
プローブを回転させて基材に挿入し、回転子のプローブ
側の端面で基材の表面を押圧しながらプローブ挿入部分
を摩擦攪拌する摩擦撹拌処理が局部的に施されることに
より、衝撃エネルギー吸収部分が設けられてなるもので
ある。That is, the metal structural member having the shock absorbing function according to the present invention is provided on the end axis of the rotor.
Rotate the probe and insert it into the substrate.
Insert the probe while pressing the surface of the substrate with the end face on the side
Is subjected to a friction stir processing of friction stir to locally provide an impact energy absorbing portion.
【０００９】前記摩擦撹拌処理とは、金属製の構造材に
回転するプローブを挿入し、回転するプローブと構造材
との摺擦によって摩擦熱を発生せしめ、当該摩擦熱によ
ってプローブとの接触部分近傍の構造材を局部的に可塑
化軟化するとともに、プローブの回転によって軟化部分
を撹拌した後、当該軟化撹拌部分からプローブを遠ざけ
ることによって摩擦熱を急速に失わせて軟化部分を冷却
固化させる処理である。この処理を行うと、金属組織が
微細となり、エネルギー吸収値が高くなると考えられ
る。[0009] The friction stir processing, insert the probe which rotates in a metal structural member, by which the frictional heat by friction with the rotating probe and the structural member, contact between the probe by the frictional heat After locally plasticizing and softening the structural material in the vicinity of the portion and stirring the softened portion by rotating the probe, the probe is moved away from the softened and stirred portion to rapidly lose frictional heat and cool and solidify the softened portion. Processing. It is considered that when this treatment is performed, the metal structure becomes fine and the energy absorption value increases.
【００１０】上記摩擦撹拌処理が局部的に施され、衝撃
エネルギー吸収部分が設けられた金属製構造材は、衝撃
エネルギーが入力されると、衝撃エネルギー吸収部分に
よって当該衝撃エネルギーが吸収される構造材である。[0010] The metal structural material which is locally subjected to the friction stir processing and provided with the impact energy absorbing portion is a structural material in which when the impact energy is inputted, the impact energy absorbing portion absorbs the impact energy. It is.
【００１１】即ち、この衝撃吸収機能を有する金属製構
造材は、構造材本来の機能を発揮し得る状態のまま衝撃
吸収機能が付加されたものであり、衝撃吸収用の部材や
それを組み込むための部材を必要とすることがなく、そ
れぞれの部材を特殊な形状に加工したりそれらを組み立
てる工程が不要となる。したがって、構造材全体として
軽量化することができるとともに、比較的低コストで製
造され得る。That is, the metal structural material having the shock absorbing function is provided with the shock absorbing function in a state where the structural material can exhibit its original function. The process of processing each member into a special shape and assembling them is not required. Therefore, the structural material as a whole can be reduced in weight and can be manufactured at a relatively low cost.
【００１２】また、衝撃エネルギー吸収部分の形状や配
置状態を設定することで、衝撃エネルギーの吸収値や衝
撃により変形した後の構造材の形状を任意に制御するこ
とが可能である。By setting the shape and arrangement of the impact energy absorbing portion, it is possible to arbitrarily control the absorption value of the impact energy and the shape of the structural material deformed by the impact.
【００１３】[0013]
【発明の実施の形態】次に、この発明を図示実施形態に
基づき説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described based on illustrated embodiments.
【００１４】図１に示す金属製構造材（１）は、横断面
正方形の中空押出材からなる基材（１０）に、全周にわ
たって設けられた帯状の衝撃エネルギー吸収部分（２）
が基材の長さ方向に平行状に複数本並設されたものであ
る。この衝撃エネルギー吸収部分（２）は、金属製構造
材（１）に長さ方向に入力された衝撃エネルギーに対
し、有効にその衝撃エネルギーを吸収し得る配置状態と
なされている。A metal structural material (1) shown in FIG. 1 is a strip-shaped impact energy absorbing portion (2) provided on a base material (10) made of a hollow extruded material having a square cross section over the entire circumference.
Are arranged in parallel in the length direction of the base material. The impact energy absorbing portion (2) is arranged so as to be able to effectively absorb the impact energy input to the metal structural material (1) in the longitudinal direction.
【００１５】次に、金属製構造材（１）を製造方法とと
もに詳細に説明する。Next, the metal structural material (1) will be described in detail together with the manufacturing method.
【００１６】まず、基材（１０）を準備する。基材（１
０）の形状や製造方法は特に限定されるものではなく、
また、その材質もアルミニウムや鉄や銅、またはこれら
の合金等任意に選択し得る。この実施形態の場合、基材
（１０）は、外部形状及び内部形状ともに横断面正方形
となされたパイプ状の押出材とし、その材質はアルミニ
ウム合金とした。First, a substrate (10) is prepared. Substrate (1
The shape and manufacturing method of 0) are not particularly limited.
The material may be arbitrarily selected from aluminum, iron, copper, and alloys thereof. In the case of this embodiment, the base material (10) was a pipe-shaped extruded material having a square cross section in both the outer shape and the inner shape, and the material was an aluminum alloy.
【００１７】次に、図２に示すように、前記基材（１
０）に摩擦撹拌処理を施し、衝撃エネルギー吸収部分を
設ける。Next, as shown in FIG.
0) is subjected to a friction stir treatment to provide an impact energy absorbing portion.
【００１８】図２に示す（３）は摩擦撹拌処理を施す処
理装置である。この処理装置（３）は、径大の円柱状回
転子（３０）の端部軸線上に、径小のピン状プローブ
（３１）が突出して一体に設けられたものである。前記
回転子（３０）、プローブ（３１）ともに、基材（１
０）を構成するアルミニウムよりも硬質の材料によって
製作されている。なお、図示は省略したが、プローブ
（３１）の周面には撹拌用の凹凸が形成されている。(3) shown in FIG. 2 is a processing apparatus for performing a friction stir processing. This processing device (3) has a small-diameter pin-shaped probe (31) provided integrally on the end axis of a large-diameter cylindrical rotor (30). Both the rotor (30) and the probe (31) are made of a substrate (1).
It is made of a material harder than the aluminum constituting 0). Although not shown in the drawings, irregularities for stirring are formed on the peripheral surface of the probe (31).
【００１９】そして、基材（１０）の周壁の外表面か
ら、前記処理装置（３）のプローブ（３１）を回転させ
つつ基材（１０）に厚さ方向に挿入する。挿入は、プロ
ーブ（３１）が基材（１０）の周壁を貫通するまで行
う。また、この状態において、回転子（３０）における
プローブ（３１）側の端面（３２）は基材（１０）の表
面を押圧している。この様に、前記端面（３２）が基材
（１０）の表面を押圧することで、摩擦撹拌処理を施す
際にプローブ（３１）近傍から基材（１０）を構成する
素材の飛散を防止することができるとともに、処理後の
基材（１０）表面を平滑にすることができる。Then, the probe (31) of the processing device (3) is inserted into the substrate (10) in the thickness direction while rotating the probe (31) from the outer surface of the peripheral wall of the substrate (10). The insertion is performed until the probe (31) penetrates the peripheral wall of the substrate (10). In this state, the end face (32) of the rotor (30) on the probe (31) side presses the surface of the base material (10). In this way, the end face (32) presses the surface of the base material (10) to prevent the material constituting the base material (10) from scattering from the vicinity of the probe (31) when performing the friction stir processing. And the surface of the substrate (10) after the treatment can be smoothed.
【００２０】前記プローブ（３１）の挿入状態を維持し
つつ、回転子（３０）及びプローブ（３１）を、移動方
向の後方にわずかに傾けて基材（１０）の全周にわたっ
て相対的に移動させる。While maintaining the inserted state of the probe (31), the rotor (30) and the probe (31) are relatively tilted backward in the moving direction and relatively moved over the entire circumference of the substrate (10). Let it.
【００２１】前記回転するプローブ（３０）と基材（１
０）との摺擦により発生する摩擦熱により、プローブ
（３１）との接触部分近傍において基材（１０）が可塑
化軟化し、かつ、プローブ（３１）により撹拌されると
ともに、プローブ（３１）の移動に伴って軟化撹拌部分
がプローブ（３１）の進行圧力を受けてプローブ（３
１）の通過溝を埋めるようにプローブ（３１）の進行方
向後方へと回り込む態様で塑性流動したのち、摩擦熱を
急速に失って冷却固化される。この現象がプローブ（３
１）の移動に伴って順次繰り返されていき、プローブ
（３１）の軌道に沿っ基材（１０）が摩擦撹拌処理さ
れ、基材（１０）に帯状の衝撃エネルギー吸収部分
（２）が設けられる。この衝撃エネルギー吸収部分
（２）は、他の部分に比べて金属組織が微細となるた
め、衝撃エネルギーを有効に吸収し得るものと推測され
る。The rotating probe (30) and the substrate (1)
The base material (10) is plasticized and softened in the vicinity of the contact portion with the probe (31) due to frictional heat generated by rubbing with the probe (0), and is stirred by the probe (31). The softening and agitating part receives the traveling pressure of the probe (31) with the movement of
After plastically flowing in such a manner as to go backward in the traveling direction of the probe (31) so as to fill the passage groove of 1), frictional heat is rapidly lost, and the solidified material is cooled and solidified. This phenomenon is caused by the probe (3
It is sequentially repeated with the movement of 1), the base material (10) is subjected to friction stir processing along the trajectory of the probe (31), and the band-shaped impact energy absorbing portion (2) is provided on the base material (10). . It is assumed that the impact energy absorbing portion (2) can effectively absorb impact energy because the metal structure is finer than other portions.
【００２２】以上の摩擦撹拌処理を長さ方向に一定間隔
をおいて複数箇所施すことで、衝撃吸収機能を有する金
属製構造材（１）を得る。By performing the above-mentioned friction stir processing at a plurality of locations at a constant interval in the length direction, a metal structural material (1) having a shock absorbing function is obtained.
【００２３】上記金属製構造材（１）への、摩擦撹拌処
理を行う際に、プローブ（３１）の径や軌道を設定し、
また、衝撃エネルギー吸収部分（２）を設ける間隔や数
や位置を設定することにより、金属製構造材（１）全体
としての衝撃エネルギー吸収値を任意に設定することが
できる。もとより、この金属製構造材（１）は、衝撃吸
収用の別部材が組み込まれる訳ではなく、基材（１０）
を特殊な形状や構造に加工する訳ではないため、比較的
軽量となされるとともに、低コストで製造することがで
きる。When friction stir processing is performed on the metal structural material (1), the diameter and trajectory of the probe (31) are set.
Further, by setting the interval, the number, and the position where the impact energy absorbing portions (2) are provided, the impact energy absorption value of the entire metal structural material (1) can be arbitrarily set. Naturally, this metal structural material (1) does not necessarily incorporate a separate member for absorbing shock, but rather a base material (10).
Is not processed into a special shape or structure, so that it can be made relatively lightweight and can be manufactured at low cost.
【００２４】なお、金属製構造材（１）の製造方法は上
記に限定される訳ではなく、任意の方法を採用し得る。
例えば、図３に示すように、横断面形状は前述の基材
（１０）と同形状で短尺パイプ状の基材片（１１）を複
数個準備し、これらを突き合わせ状態として突き合わせ
部を摩擦撹拌接合して前述の実施形態と同様の金属製構
造材（１）を製造するものとしても良い。この場合、前
記接合部分は摩擦撹拌処理が施された部分となり、接合
部分が衝撃エネルギー吸収部分（２）となる。The method for producing the metal structural material (1) is not limited to the above, and any method can be adopted.
For example, as shown in FIG. 3, a plurality of short pipe-shaped base pieces (11) having the same cross-sectional shape as the above-mentioned base material (10) are prepared, and these are put into a butt state, and the butt portion is friction-stirred. The metal structural member (1) similar to the above-described embodiment may be manufactured by joining. In this case, the joined portion becomes the portion subjected to the friction stir processing, and the joined portion becomes the impact energy absorbing portion (2).
【００２５】また、基材（１０）や衝撃エネルギー吸収
部分（２）の形状は上記に限定される訳ではない。例え
ば、図４に示すように、中空円筒状の基材（１０）の周
壁に螺旋状に衝撃エネルギー吸収部分（２）を設けても
良い。この場合、処理装置（３）のプローブ（３１）を
基材（１０）から抜くことなく衝撃エネルギー吸収部分
（２）を基材（１０）の全体にわたって設けることがで
き、金属製構造材（１）の製造が容易となる。さらにま
た、図５に示すように、異形状の基材（１０）の一部に
衝撃エネルギー吸収部分（２）を設けた金属製構造材
（１）としても良い。このような構造材（１）とするこ
とで、衝撃の入力方向に対し、衝撃エネルギーの吸収値
が部分的に異なるものとなり、衝撃を受けた後の構造材
の変形状態を任意に制御することが可能となる。The shapes of the substrate (10) and the impact energy absorbing portion (2) are not limited to the above. For example, as shown in FIG. 4, the impact energy absorbing portion (2) may be spirally provided on the peripheral wall of the hollow cylindrical substrate (10). In this case, the impact energy absorbing portion (2) can be provided over the entire substrate (10) without removing the probe (31) of the processing apparatus (3) from the substrate (10), and the metal structural material (1) can be provided. ) Is easy to manufacture. Further, as shown in FIG. 5, a metal structural material (1) in which an impact energy absorbing portion (2) is provided on a part of a substrate (10) having a different shape may be used. By adopting such a structural material (1), the absorption value of the impact energy is partially different from the impact input direction, and the deformation state of the structural material after the impact is arbitrarily controlled. Becomes possible.
【００２６】[0026]
【実施例】次に、この発明の実施例を説明する。Next, an embodiment of the present invention will be described.
【００２７】まず、試験片として、材質がＪＩＳ６Ｎ０
１アルミニウム合金（Ｔ５調質）で、形状が幅１０ｍｍ
長さ５０ｍｍ厚さ５ｍｍのシャルピー試験用試験片を複
数個準備した。First, the test piece is made of JIS6N0
1 Aluminum alloy (T5 tempered), 10mm wide
A plurality of test pieces for Charpy test having a length of 50 mm and a thickness of 5 mm were prepared.
【００２８】前記試験片の一方の群には、長さ方向中央
部に幅方向及び厚さ方向全体にわたって下記要領で摩擦
撹拌処理を施し、衝撃エネルギー吸収部分を設けた。ま
た、他方の群には何も処理を行わなかった。One group of the test pieces was subjected to a friction stir treatment at the center in the length direction over the entire width and thickness directions in the following manner to provide an impact energy absorbing portion. No treatment was applied to the other group.
【００２９】摩擦撹拌処理条件 回転子 ：径１４ｍｍ プローブ：径６ｍｍ、長さ６ｍｍ 回転数 ：１５００ｒｐｍ 送り速度：６００ｍｍ／ｍｉｎ 上記試験片についてシャルピー衝撃試験を行い、シャル
ピー吸収エネルギーを求めた。この結果、何等処理を施
していない試験片群の平均吸収エネルギーが３．４ｋｇ
・ｍ／ｃｍ2 であるのに対し、摩擦撹拌処理を行って衝
撃エネルギー吸収部分を設けた試験片群の平均吸収エネ
ルギーは６．２ｋｇ・ｍ／ｃｍ2 であった。Friction stir processing conditions Rotor: diameter 14 mm Probe: diameter 6 mm, length 6 mm Number of revolutions: 1500 rpm Feeding speed: 600 mm / min The Charpy impact test was performed on the above test pieces to determine the Charpy absorbed energy. As a result, the average absorbed energy of the test piece group without any treatment was 3.4 kg.
M / cm 2 , whereas the average absorbed energy of the test piece group provided with an impact energy absorbing portion by performing friction stir processing was 6.2 kg · m / cm 2 .
【００３０】以上から、衝撃エネルギー吸収部分を設け
ることにより、シャルピー吸収エネルギーが向上するこ
とが分かる。From the above, it can be seen that the provision of the impact energy absorbing portion improves the Charpy absorbed energy.
【００３１】[0031]
【発明の効果】この発明は、上述の次第であり、回転す
るプローブを用いて摩擦撹拌処理を施すことにより、衝
撃エネルギー吸収部分が設けられた金属製構造材である
から、構造材本来の機能を発揮し得る状態のまま衝撃吸
収機能を有しており、衝撃吸収用の別部材を組み込んだ
り、衝撃吸収用の特殊な形状や構造とする必要がない。
したがって、衝撃吸収機能を有する金属製構造材であり
ながら、軽量かつ低コストで簡易に製造することができ
る。The present invention is dependent on the above, and is a metal structural material provided with an impact energy absorbing portion by performing friction stir processing using a rotating probe. It has a shock absorbing function in a state where it is possible to exhibit, and it is not necessary to incorporate another member for absorbing shock or to adopt a special shape or structure for absorbing shock.
Therefore, although it is a metal structural material having a shock absorbing function, it can be easily manufactured at a low cost and at a low cost.
【００３２】また、衝撃エネルギー吸収部分の形状や配
置状態を設定することで、衝撃エネルギーの吸収値や衝
撃により変形した後の構造材の形状を任意に制御するこ
とが可能となる。By setting the shape and arrangement of the impact energy absorbing portion, it is possible to arbitrarily control the absorption value of the impact energy and the shape of the structural material after being deformed by the impact.
【図１】この発明の実施形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】図１に示す実施形態の製造過程を示す斜視図で
ある。FIG. 2 is a perspective view showing a manufacturing process of the embodiment shown in FIG.
【図３】図１に示す実施形態の他の製造過程を示す斜視
図である。FIG. 3 is a perspective view showing another manufacturing process of the embodiment shown in FIG. 1;
【図４】他の実施形態を示す平面図である。FIG. 4 is a plan view showing another embodiment.
【図５】他の実施形態を示す斜視図である。FIG. 5 is a perspective view showing another embodiment.
【図６】従来例を示す斜視図である。FIG. 6 is a perspective view showing a conventional example.
１…金属製構造材 ２…衝撃エネルギー吸収部分 ３…処理装置 10…基材 31…プローブ DESCRIPTION OF SYMBOLS 1 ... Metal structural material 2 ... Impact energy absorption part 3 ... Processing apparatus 10 ... Base material 31 ... Probe
フロントページの続き (72)発明者 西川 直毅 堺市海山町６丁224番地 昭和アルミニ ウム株式会社内 (72)発明者 橋本 武典 堺市海山町６丁224番地 昭和アルミニ ウム株式会社内 (56)参考文献 特開 平７−145843（ＪＰ，Ａ) 特開 平６−307479（ＪＰ，Ａ) 特開 平８−219216（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16F 7/12 Continuing from the front page (72) Inventor Naoki Nishikawa 6, 224 Kaiyama-cho, Sakai City Inside Showa Aluminum Co., Ltd. (72) Inventor Takenori Hashimoto 6, 224 Kaiyama-cho Sakai City Inside Showa Aluminum Co., Ltd. (56) Reference Document JP-A-7-145843 (JP, A) JP-A-6-307479 (JP, A) JP-A-8-219216 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F16F 7/12
Claims (1)
ブを回転させて基材に挿入し、回転子のプローブ側の端
面で基材の表面を押圧しながらプローブ挿入部分を摩擦
攪拌する摩擦撹拌処理が局部的に施されることにより、
衝撃エネルギー吸収部分が設けられてなる衝撃吸収機能
を有する金属製構造材。1. A probe provided on an end axis of a rotor.
Rotate the probe and insert it into the substrate.
Rubs the probe insertion part while pressing the surface of the substrate with the surface
By friction stir processing of agitation is locally applied,
A metal structural material having an impact absorbing function provided with an impact energy absorbing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20445697A JP3207376B2 (en) | 1997-07-30 | 1997-07-30 | Metal structural material with shock absorption function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20445697A JP3207376B2 (en) | 1997-07-30 | 1997-07-30 | Metal structural material with shock absorption function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1151103A JPH1151103A (en) | 1999-02-23 |
| JP3207376B2 true JP3207376B2 (en) | 2001-09-10 |
Family
ID=16490843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20445697A Expired - Fee Related JP3207376B2 (en) | 1997-07-30 | 1997-07-30 | Metal structural material with shock absorption function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3207376B2 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001234308A (en) * | 2000-02-16 | 2001-08-31 | Kawasaki Heavy Ind Ltd | Metal forming material and method of forming the same |
| US6398883B1 (en) * | 2000-06-07 | 2002-06-04 | The Boeing Company | Friction stir grain refinement of structural members |
| JP3725057B2 (en) * | 2001-09-25 | 2005-12-07 | 株式会社日立製作所 | Rail vehicle |
| JP2003095097A (en) | 2001-09-25 | 2003-04-03 | Hitachi Ltd | Rail vehicle |
| US7637136B2 (en) | 2002-09-30 | 2009-12-29 | Rinascimetalli Ltd. | Method of working metal, metal body obtained by the method and metal-containing ceramic body obtained by the method |
| JP4912614B2 (en) * | 2005-05-09 | 2012-04-11 | 株式会社日立製作所 | Rail vehicle |
| JP2005280704A (en) * | 2005-05-09 | 2005-10-13 | Hitachi Ltd | Railroad car |
| JP5092561B2 (en) * | 2007-06-14 | 2012-12-05 | 日本軽金属株式会社 | Joining method |
| CN103722288B (en) * | 2007-06-14 | 2016-03-16 | 日本轻金属株式会社 | Bonding method |
| CN102814589B (en) * | 2007-08-10 | 2014-06-25 | 日本轻金属株式会社 | Joining method and method for manufacturing joined structure |
| KR101133361B1 (en) | 2007-08-10 | 2012-04-06 | 니폰게이긴조쿠가부시키가이샤 | Joining method, and joined structure manufacturing method |
| JP5023909B2 (en) * | 2007-09-18 | 2012-09-12 | 日本軽金属株式会社 | Joining method |
| KR101133384B1 (en) | 2007-09-14 | 2012-04-09 | 니폰게이긴조쿠가부시키가이샤 | Jointing method |
| JP2010083381A (en) * | 2008-09-30 | 2010-04-15 | Kobe Steel Ltd | Bumper system and method for manufacturing the same |
| US8302450B2 (en) * | 2009-08-13 | 2012-11-06 | The Boeing Company | Incremental forging |
| US8323427B1 (en) | 2009-09-14 | 2012-12-04 | The Boeing Company | Engineered shapes from metallic alloys |
| JP6047951B2 (en) | 2012-06-29 | 2016-12-21 | スズキ株式会社 | Friction stir welding method of metal material and metal material joined body |
| JP6962139B2 (en) * | 2017-11-06 | 2021-11-05 | トヨタ自動車株式会社 | Crash box and its manufacturing method |
-
1997
- 1997-07-30 JP JP20445697A patent/JP3207376B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1151103A (en) | 1999-02-23 |
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