JPH04180505A - Porous metal panel and its manufacture - Google Patents

Porous metal panel and its manufacture

Info

Publication number
JPH04180505A
JPH04180505A JP30816190A JP30816190A JPH04180505A JP H04180505 A JPH04180505 A JP H04180505A JP 30816190 A JP30816190 A JP 30816190A JP 30816190 A JP30816190 A JP 30816190A JP H04180505 A JPH04180505 A JP H04180505A
Authority
JP
Japan
Prior art keywords
porous metal
stud
metal body
welding
metal panel
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
Application number
JP30816190A
Other languages
Japanese (ja)
Inventor
Shunsuke Suzuki
俊輔 鈴木
Hiroyoshi Kikuchi
菊地 宏佳
Hiroto Kosuge
小菅 弘人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NDC Co Ltd
Nippon Dia Clevite Co Ltd
Original Assignee
NDC Co Ltd
Nippon Dia Clevite Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NDC Co Ltd, Nippon Dia Clevite Co Ltd filed Critical NDC Co Ltd
Priority to JP30816190A priority Critical patent/JPH04180505A/en
Publication of JPH04180505A publication Critical patent/JPH04180505A/en
Pending legal-status Critical Current

Links

Landscapes

  • Building Environments (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE:To easily fit the obtd. porous metal panel to a bed material by providing projection to joining surface of stud-like member, generating arc between this and the porous metal body and conducting electric current to the direction intersecting orthogonally with the plate thickness direction of the porous metal body. CONSTITUTION:The stud 3 of male screw type, etc., is set to a chuck 8a in a welding gun 8 and pressed to welding position in the porous metal body 2. Voltage is impressed at between the stud 3 and the porous metal body 2 as base material and at the same time, the stud 3 is pulled up to generate the arc at between the projection 3b provided on the stud 3 and the base material 2. The arc melts the projection 3b in the stud 3 and a part in the base material 2 corresponding to the stud. After the lapse of the preset time, the current is off, the stud 3 is pressed into molten pond and welded to obtain the porous metal panel. At this time, since the current is conducted toward the direction intersecting orthogonally with the plate thickness direction of the porous metal body 2, enlargement of molten pond is little.

Description

【発明の詳細な説明】[Detailed description of the invention] 【発明の目的】[Purpose of the invention]

(産業上の利用分野) 本発明は、例えは吸音パネルとして各種機械装置あるい
は建築に利用される多孔質金属パネルに関し、とくに機
械装置や下地材への装着か容易な多孔質金属パネルおよ
びその製造方法に関するものである。 (従来の技術) 多孔質金属体は、吸音効果、フィルタ効果を有し、金属
のもつ優れた耐久性と併せて各種機械装置、建築などの
防音、吸音に広く利用されている。 このうち、とくにアルミニウム(アルミニウム合金も含
む)からなる多孔質金属体は、例えば、特公昭56−1
1375号公報に開示されてい乙ように、アルミニウム
粉末を焼結すること、繊維状アルミニウムを圧縮成形す
ること、あるいは溶融アルミニウムを発砲させることな
どによって製造され、軽量であること、および曲げ等の
加工が比較的容易であることなどから、とくに板状にし
て建築材料に多用され、建屋内の吸音壁や屋外での防音
壁の表面材に用いられている。 そして、このような多孔質金属体を建物の内外壁、天井
等に取り付けるにあたっては、ビスや接着剤を用いて下
地材に直接、あるいは取付部を才を介して固定するよう
にしていた。 (発明が解決しようとする課題) しかしながら、接着剤を用いる場合には十分な強度が得
られなかったり、経時劣化を起したりする問題点があり
、ビス止めの場合には、アルミニウムからなる多孔質金
属体の表面にこれとは異質なビス頭部が露出することに
なるので、とくに内装用の吸音パネルとして用いるには
外観を損なうばかりでなく、多孔質金属体に下穴を開け
る際に該多孔質金属体に割れが入りやすいという問題点
があって、これら問題点の解消が多孔質アルミニウム吸
音板の施工上の課題となっていた。 (発明の目的) 本発明は、上記のような従来の課題に着目してなされた
ものであって、建築用の下地材や機械装置類に取付ける
に際し、外観を損うことなく、確実しかも容易に取付け
ることができる多孔質金属パネルおよびその製造方法を
提供することを目的としている。
(Field of Industrial Application) The present invention relates to porous metal panels used in various mechanical devices or constructions, for example as sound-absorbing panels, and in particular to porous metal panels that can be easily attached to mechanical devices or base materials, and the production thereof. It is about the method. (Prior Art) Porous metal bodies have a sound absorption effect and a filter effect, and in addition to the excellent durability of metal, they are widely used for soundproofing and sound absorption in various mechanical devices, buildings, etc. Among these, porous metal bodies made of aluminum (including aluminum alloys) are used, for example, in
As disclosed in Publication No. 1375, it is manufactured by sintering aluminum powder, compression molding fibrous aluminum, or foaming molten aluminum, and is lightweight and can be processed by bending etc. Because it is relatively easy to clean, it is often used as a building material, especially in the form of plates, and is used as a surface material for sound-absorbing walls inside buildings and sound-proofing walls outdoors. When attaching such a porous metal body to the interior and exterior walls, ceiling, etc. of a building, it has been fixed either directly to the base material using screws or adhesives, or by fixing the attachment part through a trick. (Problems to be solved by the invention) However, when using adhesives, there are problems such as insufficient strength and deterioration over time. Since the screw head, which is different from the screw head, will be exposed on the surface of the porous metal body, it will not only spoil the appearance, especially when used as an interior sound absorbing panel, but also be difficult to use when drilling pilot holes in the porous metal body. There is a problem in that the porous metal body is susceptible to cracking, and solving these problems has been an issue in the construction of porous aluminum sound absorbing plates. (Purpose of the Invention) The present invention has been made by focusing on the above-mentioned conventional problems, and it is possible to reliably and easily attach the product to a building base material or mechanical equipment without damaging the appearance. The object of the present invention is to provide a porous metal panel that can be attached to a metal panel and a method for manufacturing the same.

【発明の構成】[Structure of the invention]

(課題を解決するための手段) 本発明の第(1)請求項に係わる多孔質金属パネルは、
アルミニウムもしくはアルミニウム合金からなる多孔質
金属体の少なくとも1個所に、同じくアルミニウム合金
もしくはアルミニウム合金からなり一端側に他部材への
装着手段を備えたスタッド状部材の他端側を溶接してな
る構成としたものである。また、本発明の第(2)請求
項に係わる多孔質金属パネルの製造方法は、多孔質金属
体にスタッド状部材を溶接するに際し、前記スタッド状
部材の他端側接合面に突起を設け、該突起と前記多孔質
金属体との間にアークを瞬間的に発生させると共に、こ
のときの電流を前記多孔質金属体の板厚方向と直角をな
す方向に流す構成としたものであって、多孔質金属パネ
ルおよびその製造方法におけるこれらの構成を前述した
従来の課題を解決するための手段としたことを特徴とし
ている。 本発明に係わる多孔質金属パネルおよびその製造方法は
、上記のような構成を有するものであり、これに用いる
多孔質金属体はその軽量性、加工性、さらには良好な吸
音性能を確保する意味からアルミニウムもしくはアルミ
ニウム合金からなるものとしているが、その化学組成、
形状、気孔率など′においては特に限定されるものでは
なく、該多孔質金属体の製造方法についても、前述のよ
うな粉末焼結、圧縮成形、溶融発泡などいずれによるも
のであってもよい。   ・ 前記多孔質金属体との溶接の相手材であるスタッド状部
材の材質についても、同様にアルミニウムもしくはアル
ミニウム合金とする。これは、例えば鉄、銅などの異種
材を用いた場合には融点および熱伝導率の差によって、
良好な溶接部の形成が困難であること、および湿潤環境
下にあっては異種材料間に電位差を生じ、腐食の原因と
なることによる。 なお、アルミニウム合金であれば化学成分を前記多孔質
金属体の化学成分と完全に一致させる必要はないか、極
端な成分差は避けることか望ましい。 また、前記スタッド状部材の形状1寸法についても特に
限定はされず、例えば第2図(a)(b)に示すような
おねじ型のものあるいは円筒状で内部にめねじを設けた
めねし型のもの、さらには、ねじのないストレート状の
部材であって、該ストレート部にかしめワッシャを嵌合
するようにしたストレート型のものなどを用いることが
できる。 すなわち、第2図(a)(b)は、スタッド状部材の形
状例を示すもので、図に示すおねじ型スタッド3および
めねじ型スタッド4は、一端側に他部材への装着手段で
あるおねし部3aおよびめねじ部4aを備えると共に、
他端側接合面には突起3bおよび4bをそれぞれ設けて
いる。 多孔質金属体へのスタッド状部材の取り付は位置及びそ
の数についても特に限定されることはなく、多孔質金属
体およびスタッド状部材の形状。 寸法などによって適宜選択される。 そして、本発明に係わる多孔質金属パネルの製遣方法に
おいて、多孔質金属体にスタッド状部材を溶接するに際
しては、例えば市販のスタッド溶接装置を利用して行う
ことかできる。 すなわち、第3図(a)  (b)は、スタッド溶接方
法の概略を説明するもので、多孔質金属体2は、その両
端部に取り付けた給電クランプ5を介してアースケーブ
ル6に接続され、該アースケーブル6は溶接制御装置7
の一側出力端子に接続されている。 一方、溶接ガン8は、ガンケーブル9を介して前記溶接
制御装置7の+側出力端子に接続されている。また、コ
ントロールケーブル10は、前記溶接ガン8と溶接制御
装置7の間を連結し、溶接ガン8の引金スイッチの投入
やスタッドの圧着などの溶接制御信号を伝達するように
なっている。 このような装置を用いてスタッド溶接を行うには、まず
第2図(a)(b)に示したようなスタッド、例えばお
ねじ型スタッド3を溶接ガン8の先端のチャック8aに
装着し、溶接母材である多孔質金属体2の所定の溶接位
置に押し付ける。このとき、溶接カン8の先端には押え
ロッド8bか取付けられており、該押えロッド8bを溶
接位置に当接させることによって、溶接ガン8と母材2
との間に適正な間隔が保持されるようになっている。 
この状態で、溶接ガン8の引金スイッチを入れると、電
源が投入されて、前記スタッド3と母材(多孔質金属体
)2との間に電圧が印加されると同時に、スタッド3が
母材2の表面から自動的に引き上げられて、スタッド3
の突起3bと母材2との間にアークが発生する。このア
ークはスタッド3の突起3bと母材2のこれに対応する
部分を溶融させ、制御装置によって予め設定したアーク
時間が経過すると自動的に電源が切れ、同時にスタッド
3が溶融池に押し付けられて溶着され、第1図に示すよ
うな多孔質金属パネル1が得られる。 (発明の作用) 本発明に係わる多孔質金属パネルは、多孔質金属体に装
着手段を備えたスタッド状部材を溶接したものであるか
ら、建築用の下地材などにスタット状部材の装着手段に
よって容易かつ確実に取付けられ、しかもビスの頭部な
どが露出することがないので外観を損なうようなことも
ない。 また、本発明に関わる多孔質パネルの製造方法は、スタ
ッド状部材の接合面に突起を設けると共に、電流が多孔
質金属体中を板厚方向と直角をなす方向に流れるように
してスタッド溶接するものであるから、アークは多孔質
金属体の表面とスタッド状部材の突起との間でのみ生じ
ることになり、アーク時間を短かく瞬間的となるように
設定して溶融池が拡大しないうちに溶接を終了させるこ
とによって多孔質金属体の全溶融を防止するようにして
いる。またこのとき電流は第3図(b)中に矢印で示す
ように多孔質金属体の板厚方向と直角をなす方向に流れ
るので、板厚方向に流れる場合に(らべて溶融池の拡大
が少なく、多孔質金属体の全溶融防止に寄与している。 (実施例) 粒径100〜300μmのAl−3%Cu合金粉末、A
l−1%Ni−0,4%Cu合金粉末。 Al−1,5%S i −1%Mn合金粉末をそれぞれ
黒鉛血中に無加圧圧散布し、真空炉中で620〜645
℃で2時間加熱することによって焼結し、1212mm
X606mmX3mmの寸法を持つ気孔率45%の3種
のアルミニウム合金製多孔質金属体2を得た。 次に、第2図(a)に示すように一端側にM4゜M6.
M8のおねじ部3aをそれぞれ備え、他端側に高さ1.
 2mm、径0.5mm、の突起をそれぞれ設けた3種
のおねじ型スタッド3を準備した。そして、第3図に示
した溶接方法によって、前記各多孔質金属体2の四隅に
それぞれのスタッド3を3000〜4000A−80V
、7−り時間3/1000〜6/1000秒の条件で溶
接して第1図に示すような合計9種の多孔質金属パネル
1を得た。 このようにして得られた多孔質金属パネル1は、溶接欠
陥もなく、溶接裏面側(パネルの表面側)に溶接の熱影
響や圧痕なども認められないので内装材として用いた場
合でも外観を損うことはなく、各スタ・ソド3にボルト
を螺着することによって下地材などに容易かつ確実に固
定することかできる。 第1表は、前記各多孔質金属ペネル1のスタッド溶接部
から切り出した引張試験片によって、その溶接強度を調
査した結果を示すものであり、スタッド溶接部の引張強
度はいずれの場合も各多孔質金属体の母材強度と同等で
あり、健全な溶接部が得られていることが確認された。
(Means for Solving the Problems) The porous metal panel according to claim (1) of the present invention includes:
A porous metal body made of aluminum or an aluminum alloy is welded to at least one point on the other end of a stud-like member also made of an aluminum alloy or an aluminum alloy and provided with means for attaching to another member on one end. This is what I did. Further, the method for manufacturing a porous metal panel according to claim (2) of the present invention includes, when welding a stud-like member to a porous metal body, a protrusion is provided on the other end side joint surface of the stud-like member, The arc is instantaneously generated between the protrusion and the porous metal body, and the current is caused to flow in a direction perpendicular to the thickness direction of the porous metal body, The porous metal panel and the method for manufacturing the same are characterized in that these configurations are used as a means to solve the above-mentioned conventional problems. The porous metal panel and the method for manufacturing the same according to the present invention have the above-mentioned configuration, and the porous metal body used therein is designed to ensure its lightness, workability, and good sound absorption performance. It is said that it is made of aluminum or aluminum alloy, but its chemical composition,
There are no particular limitations on the shape, porosity, etc., and the method for manufacturing the porous metal body may be any of the aforementioned powder sintering, compression molding, melt foaming, etc. - The material of the stud-like member which is the material to be welded to the porous metal body is also aluminum or aluminum alloy. This is due to the difference in melting point and thermal conductivity when different materials such as iron and copper are used.
This is because it is difficult to form a good weld, and in a humid environment, a potential difference occurs between different materials, causing corrosion. Note that in the case of an aluminum alloy, it is not necessary to completely match the chemical composition with the chemical composition of the porous metal body, or it is preferable to avoid extreme differences in composition. Further, the shape and dimension of the stud-like member are not particularly limited; for example, it may be a screw type as shown in FIGS. Further, it is possible to use a straight member without a screw, in which a caulking washer is fitted into the straight portion. That is, FIGS. 2(a) and 2(b) show examples of shapes of stud-like members, and the male threaded stud 3 and female threaded stud 4 shown in the figures have a means for attaching to another member on one end side. In addition to having a certain male threaded part 3a and a certain female threaded part 4a,
Protrusions 3b and 4b are provided on the other end side joint surface, respectively. The attachment of the stud-like member to the porous metal body is not particularly limited in terms of position or number, and the shape of the porous metal body and the stud-like member. It is selected appropriately depending on the dimensions etc. In the method for producing a porous metal panel according to the present invention, the stud-like member can be welded to the porous metal body using, for example, a commercially available stud welding device. That is, FIGS. 3(a) and 3(b) schematically explain the stud welding method, in which the porous metal body 2 is connected to the ground cable 6 via the power supply clamps 5 attached to both ends of the porous metal body 2. The ground cable 6 is connected to the welding control device 7
is connected to one side output terminal of the On the other hand, the welding gun 8 is connected to the + side output terminal of the welding control device 7 via a gun cable 9. Further, the control cable 10 connects the welding gun 8 and the welding control device 7, and transmits welding control signals such as turning on the trigger switch of the welding gun 8 and crimping a stud. To perform stud welding using such a device, first attach a stud as shown in FIGS. 2(a) and 2(b), for example, the male threaded stud 3, to the chuck 8a at the tip of the welding gun 8. It is pressed against a predetermined welding position of the porous metal body 2 which is the welding base material. At this time, a presser rod 8b is attached to the tip of the welding can 8, and by bringing the presser rod 8b into contact with the welding position, the welding gun 8 and the base metal
An appropriate distance is maintained between the two.
In this state, when the trigger switch of the welding gun 8 is turned on, the power is turned on and a voltage is applied between the stud 3 and the base material (porous metal body) 2, and at the same time, the stud 3 The stud 3 is automatically pulled up from the surface of the material 2.
An arc is generated between the protrusion 3b and the base material 2. This arc melts the protrusion 3b of the stud 3 and the corresponding part of the base metal 2, and when the arc time preset by the control device has elapsed, the power is automatically turned off, and at the same time the stud 3 is pressed against the molten pool. By welding, a porous metal panel 1 as shown in FIG. 1 is obtained. (Function of the Invention) The porous metal panel according to the present invention is a porous metal body with a stud-like member provided with attachment means welded to the porous metal body. It can be installed easily and reliably, and since the heads of screws are not exposed, the appearance will not be damaged. Further, in the method for manufacturing a porous panel according to the present invention, a protrusion is provided on the joint surface of a stud-like member, and stud welding is performed so that an electric current flows through the porous metal body in a direction perpendicular to the plate thickness direction. Since the arc is generated only between the surface of the porous metal body and the protrusion of the stud-like member, the arc time is set to be short and instantaneous to prevent the molten pool from expanding. By terminating the welding, complete melting of the porous metal body is prevented. In addition, at this time, the current flows in a direction perpendicular to the thickness direction of the porous metal body, as shown by the arrow in Figure 3(b), so when it flows in the thickness direction (compared to the expansion of the molten pool) (Example) Al-3% Cu alloy powder with a particle size of 100 to 300 μm, A
l-1%Ni-0,4%Cu alloy powder. Al-1, 5% Si-1% Mn alloy powder was sprayed into graphite blood without pressure, and 620 to 645
Sintered by heating for 2 hours at ℃, 1212mm
Three types of porous metal bodies 2 made of aluminum alloy with dimensions of 606 mm x 3 mm and a porosity of 45% were obtained. Next, as shown in FIG. 2(a), M4° M6.
Each has an M8 male thread 3a, and the other end has a height of 1.
Three types of male threaded studs 3 each having a protrusion of 2 mm and a diameter of 0.5 mm were prepared. Then, by the welding method shown in FIG.
Welding was carried out under conditions of 7-7 seconds of 3/1000 to 6/1000 seconds to obtain a total of nine types of porous metal panels 1 as shown in FIG. The porous metal panel 1 obtained in this way has no welding defects and no welding heat effects or indentations on the back side of the weld (on the front side of the panel), so it has a good appearance even when used as an interior material. It will not be damaged and can be easily and reliably fixed to a base material etc. by screwing bolts onto each star/sod 3. Table 1 shows the results of investigating the welding strength using tensile test pieces cut out from the stud welds of each porous metal panel 1. It was confirmed that the strength was equivalent to that of the base metal of a quality metal body, and that a sound welded joint was obtained.

【発明の効果】【Effect of the invention】

以上説明したように、本発明に係わる多孔質金属パネル
は、アルミニウムもしくはアルミニウム合金からなる多
孔質金属体の少なくとも1個所に、同じくアルミニウム
もしくはアルミニウム合金からなり一端側に他部材への
装着手段を備えたスタッド状部材への装着手段を備えた
スタッド状部材の他端側を溶接してなる構成としたもの
であるから、建築用下地材など他部材への固定が容易、
確実であると共に、ビス頭部などの露出がなく外観を損
うことがないという優れた効果を奏するものである。 また、本発明に係わる多孔質金属パネルの製造方法は、
多孔質金属体にスタッド状部材を溶接するに際し、前記
スタッド状部材の他端側接合面に突起を設け、該突起と
前記多孔質金属体との間にアークを瞬間的に発生させる
と共に、このときの電流を前記多孔質金属体の板厚方向
と直角をなす方向に流す構成としたものであるから、ア
ークが多孔質金属体表面とスタッド状部材に設けた突起
との間でのみ生し、このときの電流方向止相俟って溶融
池の拡大が最・j1限に抑えられ多孔質金属体の全溶融
か防止できるので健全なスタッド溶接部が得られると共
に、溶接裏面側(パネルの表面側)に塗装などの絶縁性
被膜か形成されていても溶接か可能であり、当該溶接裏
面側(パネル表面側)に圧痕や溶接の熱影響か生しない
ので外観を損なうことがないという優れた効果を発揮す
るものである。
As explained above, the porous metal panel according to the present invention includes a porous metal body made of aluminum or an aluminum alloy and at least one part thereof, which is also made of aluminum or an aluminum alloy and has means for attaching it to another member on one end side. Since the other end of the stud-like member is welded and has a means for attaching it to the stud-like member, it is easy to fix it to other members such as building base materials.
In addition to being reliable, the screw head is not exposed and the appearance is not damaged, which is an excellent effect. Further, the method for manufacturing a porous metal panel according to the present invention includes:
When welding a stud-like member to a porous metal body, a protrusion is provided on the other end side joint surface of the stud-like member, an arc is instantaneously generated between the protrusion and the porous metal body, and this Since the current is passed in a direction perpendicular to the thickness direction of the porous metal body, arcs are generated only between the surface of the porous metal body and the protrusions provided on the stud-like member. At this time, the current direction is stopped and the expansion of the molten pool is kept to a minimum, preventing the porous metal body from completely melting. Welding is possible even if an insulating film such as paint is formed on the front side of the panel, and there is no indentation or heat effect from welding on the back side of the panel (front side of the panel), so the appearance will not be damaged. It has a very effective effect.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明に係わる多孔質金属パネルを示す斜視図
、第2図(a)および(b)はいずれも本発明に係わる
多孔質金属パネルの製造方法に用いるスタッド状部材の
形状例を示す図、第3図(a)は本発明に係わる多孔質
金属パネルの製造方法を説明する概略図、第3図(b)
は第3図(a)に示した溶接ガンの先端部の拡大図であ
る。 1・・・多孔質金属パネル、 2・・・多孔質金属体、 3.4・・・スタッド(スタッド状部材)、3a・・・
おねし部(装着手段)、 4a・・・めねL部(装着手段)、 3b、4b・・・突起。 特許出願人    工ヌデーシー株式会社代理人弁理士
   小 塩   豊 第1ffi    ++。171.イ1゜第2肉(Q)
FIG. 1 is a perspective view showing a porous metal panel according to the present invention, and FIGS. 2(a) and (b) each show an example of the shape of a stud-like member used in the method for manufacturing a porous metal panel according to the present invention. FIG. 3(a) is a schematic diagram illustrating the method for manufacturing a porous metal panel according to the present invention, and FIG. 3(b)
is an enlarged view of the tip of the welding gun shown in FIG. 3(a). 1... Porous metal panel, 2... Porous metal body, 3.4... Stud (stud-like member), 3a...
Male wetting part (attachment means), 4a... Female L part (attachment means), 3b, 4b... projections. Patent applicant KoNDC Co., Ltd. Representative patent attorney Yutaka Oshio 1ffi++. 171. I1゜Second meat (Q)

Claims (2)

【特許請求の範囲】[Claims] (1)アルミニウムもしくはアルミニウム合金からなる
多孔質金属体の少なくとも1個所に、同じくアルミニウ
ムもしくはアルミニウム合金からなり一端側に他部材へ
の装着手段を備えたスタッド状部材の他端側を溶接して
なることを特徴とする多孔質金属パネル。
(1) A porous metal body made of aluminum or an aluminum alloy is welded to at least one location on the other end of a stud-like member also made of aluminum or an aluminum alloy and provided with means for attaching to another member at one end. A porous metal panel characterized by:
(2)多孔質金属体にスタッド状部材を溶接するに際し
、前記スタッド状部材の他端側接合面に突起を設け、該
突起と前記多孔質金属体との間にアークを瞬間的に発生
させると共に、このときの電流を前記多孔質金属体の板
厚方向と直角をなす方向に流すことを特徴とする請求項
(1)記載の多孔質金属パネルの製造方法。
(2) When welding a stud-like member to a porous metal body, a protrusion is provided on the other end side joint surface of the stud-like member, and an arc is instantaneously generated between the protrusion and the porous metal body. 2. The method of manufacturing a porous metal panel according to claim 1, wherein the current is passed in a direction perpendicular to the thickness direction of the porous metal body.
JP30816190A 1990-11-14 1990-11-14 Porous metal panel and its manufacture Pending JPH04180505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30816190A JPH04180505A (en) 1990-11-14 1990-11-14 Porous metal panel and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30816190A JPH04180505A (en) 1990-11-14 1990-11-14 Porous metal panel and its manufacture

Publications (1)

Publication Number Publication Date
JPH04180505A true JPH04180505A (en) 1992-06-26

Family

ID=17977632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30816190A Pending JPH04180505A (en) 1990-11-14 1990-11-14 Porous metal panel and its manufacture

Country Status (1)

Country Link
JP (1) JPH04180505A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611375A (en) * 1979-07-10 1981-02-04 Toshiba Corp Waveform display unit
JPS57138123A (en) * 1981-02-19 1982-08-26 Nippon Electric Co Anode unit for electrolytic condenser
JPS6138699B2 (en) * 1983-05-10 1986-08-30 France Bed Co

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611375A (en) * 1979-07-10 1981-02-04 Toshiba Corp Waveform display unit
JPS57138123A (en) * 1981-02-19 1982-08-26 Nippon Electric Co Anode unit for electrolytic condenser
JPS6138699B2 (en) * 1983-05-10 1986-08-30 France Bed Co

Similar Documents

Publication Publication Date Title
KR20080071518A (en) Projection Welds and Methods for Forming Projection Welds
US3340379A (en) Method of welding button through paint
JP3272787B2 (en) Manufacturing method of bonded clad plate
JPH04180505A (en) Porous metal panel and its manufacture
CN114669873B (en) High-power fiber laser double-gun symmetrical welding method for medium-thick titanium alloy T-joints
US3341680A (en) Method of weld-jointing aluminum and aluminum alloys with steel
KR970010883B1 (en) Method for joining metallic members
JP2014213377A (en) Welding method
JPS63295068A (en) Bar-shaped electrodeposited stud
JPH04158985A (en) Resistance welding method for porous metallic members
JPH11311218A5 (en)
JPH10252212A (en) Wall panel and method of manufacturing the same
JP2577666B2 (en) Exterior plate joining structure
CN107486604A (en) A kind of high frequency brazing machine
JP2566466B2 (en) Welding method for fastening members
JP6124179B2 (en) Stud mounting structure and mounting method
JPH03124205A (en) Control board
GB2096039A (en) Spot welding of metal components
JPH02207978A (en) Metal members and joining method therefor
JP3065186B2 (en) Steel frame with inner diaphragm plate
JPH10216945A (en) Method for impregnating covering material with stud welding pin and base material
JP2001105142A (en) Member joining method by stud welding
JPS62192274A (en) Linking method for hard member
JP3121863U (en) Tubular mounting bolt that can be welded to steel
DE4436777A1 (en) Gas=tight joining of pipes having small diameters and different melting points