JPH05329663A - Resistance diffusion joining method - Google Patents
Resistance diffusion joining methodInfo
- Publication number
- JPH05329663A JPH05329663A JP34668491A JP34668491A JPH05329663A JP H05329663 A JPH05329663 A JP H05329663A JP 34668491 A JP34668491 A JP 34668491A JP 34668491 A JP34668491 A JP 34668491A JP H05329663 A JPH05329663 A JP H05329663A
- Authority
- JP
- Japan
- Prior art keywords
- joining
- bonding
- members
- resistance diffusion
- brazing
- 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
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
(57)【要約】
【目的】 本発明は、低い温度、すなわち低いエネルギ
ーで接合部材を接合するとともに、これら接合部材が接
合されて形成される接合材の所定の剪断力を保持するこ
とを目的とする。
【構成】 本発明による抵抗拡散接合方法は、第一の接
合部材１および第二の接合部材４間の接合面に融点の異
なる少なくとも２種類のインサート材、すなわちろう材
３ａ，３ｂを介在させてそれら接合部材１，４を接合す
る構成とされる。
(57) [Summary] [Object] The present invention aims to bond a joining member at a low temperature, that is, at a low energy, and to maintain a predetermined shearing force of a joining material formed by joining these joining members. And According to the resistance diffusion bonding method of the present invention, at least two kinds of insert materials having different melting points, that is, brazing materials 3a and 3b are interposed on the bonding surface between the first bonding member 1 and the second bonding member 4. The joining members 1 and 4 are joined together.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、接合部材間にインサー
ト材を介在させてそれら接合部材を接合する抵抗拡散接
合方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resistance diffusion joining method for joining joining members with an insert material interposed between the joining members.
【０００２】[0002]
【従来の技術】従来、同種材料または異種材料の面接合
には抵抗拡散接合方法が広く用いられている。この抵抗
拡散接合方法は、接合部材間にインサート材を介在させ
てそれら接合部材を溶融させることなく加熱・加圧し
て、接合面に原子的な金属結合を生起させる方法であっ
て、前記インサート材を介して前記接合部材が接合され
ることにより、接合材が形成される。なお、前記インサ
ート材としてはろう材等が用いられる。2. Description of the Related Art Conventionally, a resistance diffusion bonding method has been widely used for surface bonding of the same material or different materials. This resistance diffusion joining method is a method of interposing an insert material between joining members and heating and pressurizing the joining members without melting the joining members to generate an atomic metal bond on the joining surface. The joining material is formed by joining the joining members via the. A brazing material or the like is used as the insert material.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述さ
れたろう材として高融点ろう材（例えば融点が９３０
℃）を用いると、この高融点ろう材を溶融させるために
非常に高いエネルギー、すなわち約８５０００Ａ（アン
ペア）の電流が必要であるという問題点がある。また、
前記ろう材として低融点ろう材（例えば融点が６５０
℃）を用いると、この低融点ろう材には一般にリン
（Ｐ），ニッケル（Ｎｉ）等が多く含有されているた
め、接合部材より形成された接合材に熱処理等を行うと
その接合材中に脆弱な化合物が生成され、この接合材の
剪断力が低下するという問題点がある。However, as the brazing material described above, a high melting point brazing material (for example, having a melting point of 930) is used.
However, there is a problem in that very high energy, that is, a current of about 85000 A (ampere) is required to melt the high melting point brazing material. Also,
As the brazing material, a low melting point brazing material (for example, a melting point of 650
(° C), since the low melting point brazing material generally contains a large amount of phosphorus (P), nickel (Ni), etc., when the joining material formed from the joining member is subjected to heat treatment, etc. There is a problem that a fragile compound is generated and the shearing force of this bonding material is reduced.
【０００４】本発明は、以上のような問題点に鑑みてな
されたものであって、低い温度、すなわち低いエネルギ
ーで接合部材を接合するとともに、これら接合部材より
形成される接合材の所定の剪断力を保持することができ
る抵抗拡散接合方法を提供することを目的とする。The present invention has been made in view of the above problems, and it joins a joining member at a low temperature, that is, at a low energy, and a predetermined shearing force of a joining material formed by these joining members. An object of the present invention is to provide a resistance diffusion bonding method capable of retaining force.
【０００５】[0005]
【課題を解決するための手段】本発明による抵抗拡散接
合方法は、接合部材間の接合面に融点の異なる少なくと
も２種類のインサート材を介在させて前記接合部材を接
合することを特徴とする。The resistance diffusion bonding method according to the present invention is characterized in that the bonding members are bonded to each other by interposing at least two kinds of insert materials having different melting points on the bonding surfaces between the bonding members.
【０００６】[0006]
【作用】本発明による抵抗拡散接合方法は、融点の異な
る少なくとも２種類のインサート材により接合部材を接
合しているため、これらインサート材が溶融される温度
は融点降下作用によりそれらインサート材のうち最も高
融点のインサート材の融点よりも低くなる。したがっ
て、前記接合部材が前記最も高融点のインサート材のみ
を用いて接合する際よりも低いエネルギーで接合され
る。また、これらインサート材に前記接合部材よりなる
接合材の熱処理時に脆弱化合物を生成するような低融点
のインサート材が含まれている際、この脆弱化合物が生
成される量は前記低融点のインサート材のみを用いて接
合する際よりも相対的に少なくなる。したがって、前記
接合材の剪断力の低下が抑止される。In the resistance diffusion bonding method according to the present invention, the joining members are joined by at least two kinds of insert materials having different melting points. It is lower than the melting point of the high melting point insert material. Therefore, the joining member is joined with lower energy than when joining is performed using only the insert material having the highest melting point. Further, when these insert materials include an insert material having a low melting point that produces a brittle compound during heat treatment of the joining material formed of the joining member, the amount of the brittle compound produced is the low melting point insert material. Relatively less than when joining using only. Therefore, the reduction of the shearing force of the bonding material is suppressed.
【０００７】[0007]
【実施例】以下、実施例を図面に基づいて説明する。本
発明の第一実施例の抵抗拡散接合方法を用いて第一の接
合部材と第二の接合部材とを接合する際のそれら第一の
接合部材，第二の接合部材およびインサート材の層構成
が図１に示されている。この抵抗拡散接合方法によれ
ば、まず、第一の接合部材１の接合面に銅−亜鉛メッキ
層２，ろう材３ａ（融点６５０℃）およびろう材３ｂ
（融点９４０℃）が積層され、これら銅−亜鉛メッキ層
２およびろう材３ａ，３ｂを介して銅−亜鉛合金の第二
の接合部材４が載置される。次いで、これら接合部材
１，４を６ｔの荷重で加圧しつつ大気中で短時間通電
（６５０００Ａ，１．５ｓｅｃ）した後、前記加圧を６
ｓｅｃ継続する。このようにして、接合部材１，４の接
合部に抵抗発熱を生起させてろう材３ａ，３ｂを溶融さ
せ、これら接合部材１，４を８００乃至８５０℃で接合
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings. Layer configuration of the first joining member, the second joining member, and the insert material when joining the first joining member and the second joining member using the resistance diffusion joining method of the first embodiment of the present invention Are shown in FIG. According to this resistance diffusion bonding method, first, the copper-zinc plating layer 2, the brazing material 3a (melting point 650 ° C.) and the brazing material 3b are formed on the bonding surface of the first bonding member 1.
(Melting point 940 ° C.) are laminated, and the second joining member 4 of copper-zinc alloy is placed via the copper-zinc plating layer 2 and the brazing materials 3a and 3b. Next, after pressing these joining members 1 and 4 with a load of 6 t for a short period of time in the atmosphere (65000 A, 1.5 sec), the pressing force is increased to 6
Continue for sec. In this way, resistance heating is generated in the joint portions of the joint members 1 and 4 to melt the brazing materials 3a and 3b, and the joint members 1 and 4 are joined at 800 to 850 ° C.
【０００８】図２は、前記接合部材１，４が接合されて
形成された接合材の内層部の断面の金属組織を示す写真
である。図２において、図中に３本の境界線（以下、こ
れら３本の境界線を上から順に、第一の境界線，第二の
境界線，第三の境界線と記す。）が示されている。図
中、第一の境界線の上方が第二の接合部材４、第一の境
界線と第二の境界線とに挟まれた層がろう材３ｂ、第二
の境界線と第三の境界線とに挟まれた層がろう材３ａと
銅−亜鉛メッキ層２とが溶融して混在する層、第三の境
界線の下方が第一の接合部材１である。図２の写真によ
れば、第一の接合部材１と第二の接合部材４とがろう材
３ｂの融点温度以下の温度で欠陥等を生じることなく接
合されている。FIG. 2 is a photograph showing the metallographic structure of the cross section of the inner layer portion of the joining material formed by joining the joining members 1 and 4. In FIG. 2, three border lines (hereinafter, these three border lines are referred to as a first border line, a second border line, and a third border line in this order from the top) are shown in FIG. ing. In the figure, the upper part of the first boundary line is the second joining member 4, the layer sandwiched between the first boundary line and the second boundary line is the brazing material 3b, and the second boundary line and the third boundary line. The layer sandwiched between the wires is a layer in which the brazing material 3a and the copper-zinc plated layer 2 are melted and mixed, and below the third boundary line is the first joining member 1. According to the photograph of FIG. 2, the first joining member 1 and the second joining member 4 are joined at a temperature equal to or lower than the melting point temperature of the brazing material 3b without causing defects or the like.
【０００９】なお、これら接合部材１，４が接合されて
形成された接合材をＥＰＭＡで検査したところ、脆弱化
合物の生成量はろう材３ａのみを用いて接合を行った場
合よりも極めて少なかった。また、前記接合材の剪断力
は平均で３３．８ｋｇ／ｍｍ 2 であり、この剪断力は第
二の接合部材４である銅−亜鉛合金の剪断力と同等であ
った。When these joining members 1 and 4 are joined,
When the formed bonding material is inspected by EPMA, it becomes fragile.
The amount of compound produced is in the case of joining using only the brazing filler metal 3a.
It was much less than the sum. Also, the shearing force of the bonding material
Is 33.8 kg / mm on average 2And this shear force is
It is equivalent to the shearing force of the copper-zinc alloy that is the second joining member 4.
It was.
【００１０】なお、第一の接合部材１は、例えば外径が
３５ｍｍの円柱形状とされ、材質がＪＩＳに定められる
ＳＣＭ４４０Ｈ（組成比；炭素：０．３７〜０．４４，
珪素：０．１５〜０．３５，マンガン：０．５５〜０．
９０，クロム：０．８５〜１．２５，モリブデン：０．
１５〜０．３５，リン：≦０．０３０，イオウ：≦０．
０３０，鉄：残余）により形成されている。また、この
実施例において用いられたろう材３ａ，３ｂの重量比
は、ろう材３ａ：ろう材３ｂ＝７：３とされ、ろう材３
ａの組成比はニッケル：９．５，錫：４．０，リン：
７．５，銅：残余とされ、ろう材３ｂの組成比は銅：８
０，錫：２０とされている。また、ろう材３ａ，３ｂの
厚さはそれぞれ４０μｍとされている。The first joining member 1 has, for example, a cylindrical shape with an outer diameter of 35 mm, and the material thereof is SCM440H (composition ratio; carbon: 0.37 to 0.44).
Silicon: 0.15 to 0.35, manganese: 0.55 to 0.
90, chromium: 0.85 to 1.25, molybdenum: 0.
15-0.35, phosphorus: ≤0.030, sulfur: ≤0.
030, iron: remainder). In addition, the weight ratio of the brazing filler metals 3a and 3b used in this embodiment is set to brazing filler metal 3a: brazing filler metal 3b = 7: 3.
The composition ratio of a is nickel: 9.5, tin: 4.0, phosphorus:
7.5, copper: remaining, the composition ratio of the brazing material 3b is copper: 8
0, tin: 20. The brazing filler metals 3a and 3b each have a thickness of 40 μm.
【００１１】図３に本発明の第二実施例の抵抗拡散接合
方法を用いて第一の接合部材と第二の接合部材を接合す
る際のそれら第一の接合部材，第二の接合部材およびイ
ンサート材の層構成が示されている。この抵抗拡散接合
方法によれば、まず、第一の接合部材５の接合面にニッ
ケルメッキ層６ａ，銅−亜鉛メッキ層６ｂ，ろう材７ａ
（融点９４０℃）およびろう材７ｂ（融点６６０℃）が
順次積層され、これらメッキ層６ａ，６ｂおよびろう材
７ａ，７ｂを介して銅−亜鉛合金の第二の接合部材８が
載置される。次いで、これら接合部材５，８を６ｔの荷
重で加圧しつつ大気中で短時間通電（６５０００Ａ，
１．５ｓｅｃ）した後、前記加圧を６ｓｅｃ継続する。
このようにして、接合部材５，８の接合部に抵抗発熱を
生起させてろう材７ａ，７ｂを溶融させ、これら接合部
材５，８を８５０乃至９００℃で接合する。FIG. 3 shows the first joining member, the second joining member, and the second joining member when joining the first joining member and the second joining member using the resistance diffusion joining method of the second embodiment of the present invention. The layer structure of the insert material is shown. According to this resistance diffusion bonding method, first, the nickel plating layer 6a, the copper-zinc plating layer 6b, and the brazing material 7a are formed on the bonding surface of the first bonding member 5.
(Melting point 940 ° C.) and brazing material 7b (melting point 660 ° C.) are sequentially laminated, and the second bonding member 8 of the copper-zinc alloy is placed via the plating layers 6a, 6b and the brazing materials 7a, 7b. . Next, while pressurizing these joining members 5 and 8 with a load of 6 tons, energizing them for a short time in the atmosphere (65000 A,
After 1.5 seconds), the pressurization is continued for 6 seconds.
In this way, resistance heating is generated in the joint portions of the joint members 5 and 8 to melt the brazing materials 7a and 7b, and the joint members 5 and 8 are joined at 850 to 900 ° C.
【００１２】図４は、前記接合部材５，８が接合されて
形成された接合材の内層部の断面の金属組織を示す写真
である。図４において、図中に５本の境界線（以下、こ
れら５本の境界線を上から、第一の境界線，第二の境界
線，第三の境界線，第四の境界線，第五の境界線と記
す。）が示されており、これら第一の境界線、第二の境
界線、第三の境界線および第四の境界線それぞれは断続
的な黒点によって示されている。なお、これら黒点はポ
アー（小穴）である。図中、第一の境界線の上方が第二
の接合部材８、第一の境界線と第二の境界線とに挟まれ
た層がろう材６ｂ、第二の境界線と第三の境界線とに挟
まれた層がろう材６ａ、第三の境界線と第四の境界線と
に挟まれた層が銅−亜鉛メッキ層６ｂ、第四の境界線と
第五の境界線とに挟まれた層がニッケルメッキ層６ａ、
第五の境界線の下方が第一の接合部材５である。図４の
写真によれば、第一の接合部材５と第二の接合部材８と
がろう材７ａの融点温度以下の温度で接合されている。FIG. 4 is a photograph showing the metallographic structure of the cross section of the inner layer portion of the joining material formed by joining the joining members 5 and 8. In FIG. 4, five boundary lines are shown in the figure (hereinafter, these five boundary lines are referred to from above as the first boundary line, the second boundary line, the third boundary line, the fourth boundary line, the fourth boundary line, 5 border line), and each of the first border line, the second border line, the third border line and the fourth border line is indicated by intermittent black dots. Note that these black dots are pores. In the figure, the upper part of the first boundary line is the second joining member 8, the layer sandwiched between the first boundary line and the second boundary line is the brazing material 6b, and the second boundary line and the third boundary line. The layer sandwiched between the lines is the brazing filler metal 6a, the layer sandwiched between the third boundary line and the fourth boundary line is the copper-zinc plated layer 6b, the fourth boundary line and the fifth boundary line. The sandwiched layer is the nickel plating layer 6a,
Below the fifth boundary line is the first joining member 5. According to the photograph of FIG. 4, the first joining member 5 and the second joining member 8 are joined at a temperature equal to or lower than the melting point temperature of the brazing material 7a.
【００１３】これら接合部材５，８が接合されて形成さ
れた接合材を５７０℃で５時間熱処理したところ、この
熱処理がなされた接合材の剪断力は平均３０．７ｋｇ／
ｍｍ 2 であった。なお、この剪断力が前記第一実施例の
抵抗拡散接合方法により得られた接合材の剪断力よりも
低いのは、前記ポアーの存在によるものと考えられる。
また、前記熱処理後においてその接合材をＥＰＭＡで検
査したところ、この接合材に脆弱化合物の生成は認めら
れなかった。These joining members 5 and 8 are formed by joining them.
The bonded material was heat treated at 570 ° C for 5 hours.
The shearing force of the heat-treated joint material is 30.7 kg / on average
mm 2Met. In addition, this shearing force is the same as that of the first embodiment.
Rather than the shearing force of the bonding material obtained by the resistance diffusion bonding method
It is considered that the low value is due to the presence of the pore.
Also, after the heat treatment, the bonding material is inspected by EPMA.
Upon inspection, no formation of brittle compounds was found in this joint material.
I couldn't.
【００１４】なお、第一の接合部材５は、例えば外径が
３２ｍｍの円柱形状とされ、材質が前述されたＳＣＭ４
４０Ｈにより形成されている。また、この実施例におい
て用いられたろう材７ａ，７ｂの重量比は、ろう材７
ａ：ろう材７ｂ＝３：７とされ、ろう材７ａの組成比は
銅：８０，錫：２０とされ、ろう材７ｂの組成はニッケ
ル：５．５，錫：９．０，リン：６．５，銅：残余とさ
れている。また、ろう材７ａ，７ｂの厚さはそれぞれ４
０μｍとされている。The first joining member 5 has, for example, a cylindrical shape with an outer diameter of 32 mm and is made of the above-mentioned material SCM4.
It is formed of 40H. Further, the weight ratio of the brazing filler metals 7a and 7b used in this embodiment is as follows.
a: brazing material 7b = 3: 7, the composition ratio of the brazing material 7a is copper: 80, tin: 20, and the composition of the brazing material 7b is nickel: 5.5, tin: 9.0, phosphorus: 6. .5, copper: The remainder. The brazing filler metal 7a and 7b each have a thickness of 4
It is set to 0 μm.
【００１５】なお、これら実施例において用いられたろ
う材の厚さ，組成，使用重量比等および接合部材の接合
条件は前述されたものに限定されるものではなく、適宜
変更することができる。The thickness, composition, use weight ratio, etc. of the brazing filler metal used in these examples and the joining conditions of the joining members are not limited to those described above, but can be changed as appropriate.
【００１６】[0016]
【発明の効果】以上のように構成された本発明によれ
ば、低い温度、すなわち低いエネルギーで接合部材を接
合するとともに、これら接合部材が接合されて形成され
る接合材の所定の剪断力を保持することができる。した
がって、所定の剪断力を有する接合材を低コストで製造
することができる。According to the present invention configured as described above, the joining members are joined at a low temperature, that is, at low energy, and a predetermined shearing force of the joining material formed by joining these joining members is applied. Can be held. Therefore, the bonding material having a predetermined shearing force can be manufactured at low cost.
【図１】本発明の第一実施例の抵抗拡散接合方法により
接合部材を接合する際の層構成図である。FIG. 1 is a layer configuration diagram when a joining member is joined by a resistance diffusion joining method according to a first embodiment of the present invention.
【図２】本発明の第一実施例の抵抗拡散接合方法により
接合された接合材の内層部の断面の金属組織を示す写真
である。FIG. 2 is a photograph showing a metallographic structure of a cross section of an inner layer portion of a joining material joined by the resistance diffusion joining method according to the first embodiment of the present invention.
【図３】本発明の第二実施例の抵抗拡散接合方法により
接合部材を接合する際の層構成図である。FIG. 3 is a layer configuration diagram when a joining member is joined by a resistance diffusion joining method according to a second embodiment of the present invention.
【図４】本発明の第二実施例の抵抗拡散接合方法により
接合された接合材の内層部の断面の金属組織を示す写真
である。FIG. 4 is a photograph showing a metal structure of a cross section of an inner layer portion of a joining material joined by a resistance diffusion joining method according to a second embodiment of the present invention.
１，５ 第一の接合部材 ２，６ｂ 銅−亜鉛メッキ層 ３ａ，３ｂ，７ａ，７ｂ ろう材 ４，８ 第二の接合部材 ６ａ ニッケルメッキ層 1,5 1st joining member 2,6b Copper-zinc plating layer 3a, 3b, 7a, 7b Brazing material 4,8 2nd joining member 6a Nickel plating layer
【手続補正書】[Procedure amendment]
【提出日】平成４年１２月１７日[Submission date] December 17, 1992
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図２[Name of item to be corrected] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図２】 [Fig. 2]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図４[Name of item to be corrected] Fig. 4
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図４】 [Figure 4]
Claims (2)
くとも２種類のインサート材を介在させて前記接合部材
を接合することを特徴とする抵抗拡散接合方法。1. A resistance diffusion bonding method, characterized in that at least two types of insert materials having different melting points are interposed between the bonding surfaces of the bonding members to bond the bonding members.
はメッキ層である請求項１に記載の抵抗拡散接合方法。2. The resistance diffusion bonding method according to claim 1, wherein the insert material is a brazing material and / or a plating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34668491A JPH05329663A (en) | 1991-12-27 | 1991-12-27 | Resistance diffusion joining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34668491A JPH05329663A (en) | 1991-12-27 | 1991-12-27 | Resistance diffusion joining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05329663A true JPH05329663A (en) | 1993-12-14 |
Family
ID=18385119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34668491A Pending JPH05329663A (en) | 1991-12-27 | 1991-12-27 | Resistance diffusion joining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05329663A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008544862A (en) * | 2005-07-07 | 2008-12-11 | アトーテヒ ドイッチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for joining processed parts and microstructured components |
| CN114101829A (en) * | 2021-12-15 | 2022-03-01 | 先导薄膜材料（广东）有限公司 | Target brazing method |
-
1991
- 1991-12-27 JP JP34668491A patent/JPH05329663A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008544862A (en) * | 2005-07-07 | 2008-12-11 | アトーテヒ ドイッチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for joining processed parts and microstructured components |
| CN114101829A (en) * | 2021-12-15 | 2022-03-01 | 先导薄膜材料（广东）有限公司 | Target brazing method |
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