JPS61147940A - Base metal for welding boss member and it production - Google Patents
Base metal for welding boss member and it productionInfo
- Publication number
- JPS61147940A JPS61147940A JP26845484A JP26845484A JPS61147940A JP S61147940 A JPS61147940 A JP S61147940A JP 26845484 A JP26845484 A JP 26845484A JP 26845484 A JP26845484 A JP 26845484A JP S61147940 A JPS61147940 A JP S61147940A
- Authority
- JP
- Japan
- Prior art keywords
- boss
- base metal
- boss member
- base material
- thickness
- 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ボス部材を溶接しようとする母材及びその製
造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a base material to which a boss member is to be welded and a method for manufacturing the same.
従来の技術
溶接構造物は溶接部の疲労強度により性能及び寿命の限
界が決まる。従って全体強度を得るため接合部を除く部
分である母材部が必要以上の肉厚、重量となる。Conventional welded structures are limited in performance and life by the fatigue strength of the weld. Therefore, in order to obtain overall strength, the base material portion, excluding the joint portion, becomes thicker and heavier than necessary.
例えば第６図に示すように、パワ・−ショベルのブーム
″ａの場會、最も力を受けるのはボスｂの周囲であ０１
このボス暖付溶接部分の疲労強度を得るために、第７図
に示すように、母材部Ｃの板厚を厚くしてそれに対応し
ている。For example, as shown in Figure 6, in the location of the power excavator's boom "a", the area that receives the most force is around the boss b.
In order to obtain the fatigue strength of this boss warming welded portion, as shown in FIG. 7, the plate thickness of the base material portion C is increased to accommodate this.
発明が解決しようとする間一点
従来の溶接用母材は溶接部以外の母材部Ｃの板厚が溶接
部と同等の板厚となっていたため、重量が必要以上に重
くなりコスト高となっている。One point that the invention was trying to solve was that in conventional welding base metals, the thickness of the base metal part C other than the welded part was the same as that of the welded part, so the weight was unnecessarily heavy and the cost was high. ing.
問題点を解決するための手段及び作用
本発明は上記のことにかんがみなされたもので、ボス部
材が嵌合して溶接結合する母材のボス暖付部を、母材の
他の部分に対して部分的に厚くした構成とし、また母材
のボス取付部にボス部材より小径の素材穴をあけておき
、この素材穴をすえ込み加工にて拡径変形してボス取付
部の板厚を他の部分より淳くするようにした。Means and Effects for Solving the Problems The present invention was conceived in view of the above-mentioned problems, and the present invention has been made in view of the above-mentioned problems. In addition, a material hole with a smaller diameter than the boss member is drilled in the boss attachment part of the base material, and this material hole is expanded and deformed by swaging processing to reduce the thickness of the boss attachment part. I tried to make it cleaner than the other parts.
実 施 例
本発明の実施例を第１図から第５図に基づいて説明する
。Embodiment An embodiment of the present invention will be described based on FIGS. 1 to 5.
図中１は母材、２けこの母材１に溶接結合するボス部材
である。ボス部材２は母材１のボスを付部３のｙｃ４に
嵌合され、その嵌せＲ１囲を溶接結合しである。母材１
のボス増付部３の板浮ｔｏｒＩ′ｉ半径方向に所定の幅
Ｗにわたって他の部分の板厚ｔより厚くなっている。ま
九その段端部もθだけ傾斜されている。In the figure, reference numeral 1 indicates a base material, and 2 indicates a boss member that is welded to the base material 1. The boss member 2 is formed by fitting the boss of the base material 1 into the yc4 of the attachment part 3, and welding and joining the fitting R1. Base material 1
The plate lift torI'i of the boss additional part 3 is thicker than the plate thickness t of other parts over a predetermined width W in the radial direction. The end of the step is also inclined by θ.
上記母材１のボス増付部３を他の部分より厚くするため
の方法を以下に示す。A method for making the boss extension part 3 of the base material 1 thicker than other parts will be described below.
まず第２図に示すように、母材１にボス部材２の嵌會径
より小径の素材穴５ｔ−あらかじめあけておく。そして
この穴５を第４図、＠５図に示す板厚制御装置もで第３
図に示すように、拡径方向にすえ込み、ボス増付部３の
板ＪＩＬｔ−厚くする。First, as shown in FIG. 2, a material hole 5t having a smaller diameter than the fitting diameter of the boss member 2 is pre-drilled in the base material 1. This hole 5 is also connected to the plate thickness control device shown in Figures 4 and 5.
As shown in the figure, the plate JILt of the boss additional portion 3 is made thicker by swaging in the direction of diameter expansion.
上記板厚制御装置６はテーパ状に形成され、かつ円周部
に切欠き７ａを設けた拡開部材７と、この拡開部材７の
周囲の切欠７ａに嵌合配置されたすえ込み部材８とから
なっていて、拡開部材フを回転しながら軸方向に移動す
ることによりすえ込み部材８が拡一部材７と共に回転し
ながら切欠き部で自転して拡開動作し、このすえ込み部
材８の溝９にはさんだ母材！の穴５の縁が溝９の幅の廖
みにすえ込まれて専くなる。このとき母材１の素材穴５
の縁を局部的に加熱しておく。The plate thickness control device 6 includes an expanding member 7 formed in a tapered shape and having a notch 7a on its circumference, and a swaging member 8 fitted into the notch 7a around the expanding member 7. By moving the expansion member 8 in the axial direction while rotating, the swaging member 8 rotates together with the expansion member 7 and rotates on its axis at the notch to perform the expansion operation, and this swaging member Base material sandwiched between groove 9 of 8! The edge of the hole 5 is wedged into the groove of the width of the groove 9. At this time, the material hole 5 of the base material 1
Heat the edges locally.
発明の効果
本発明によれば、ボス部材溶接用の母材１の重量及びコ
ストヲ低減することができる。また上記母材１のボス溶
接部の厚み増加をすえ込みにて行なうようにしたから、
材料の歩留りがよいと共に、強度の向上を図ることがで
きる。Effects of the Invention According to the present invention, the weight and cost of the base material 1 for welding the boss member can be reduced. Also, since the thickness of the boss welded portion of the base metal 1 is increased by swaging,
It is possible to improve the material yield and improve the strength.
第１図は本発明に係るボス部材溶接用母材の喪部管示す
断面図、Ｉｌ！２図、第３図はすえ込み作用説明図、第
４図、第５図はすえ込み作業を行なう丸めの板厚側・御
装置を原理的に示すもので、第４図は平面図、第５図は
第４図のＶ、 −Ｖ線に沿う断面図であり、第６図はパ
ワーショベルのブームを示す斜視図、第７図社従来のボ
ス部材溶接用母材の要部を示す断面図である。
１は母材、２はボス部材、３はボス増付部、５は素材穴
。FIG. 1 is a cross-sectional view showing the gap pipe of the base material for boss member welding according to the present invention, Il! Figures 2 and 3 are explanatory diagrams of the swaging operation, Figures 4 and 5 are principle illustrations of the thickness side and control device for rounding that performs the swaging operation, and Figure 4 is a plan view. Figure 5 is a cross-sectional view taken along lines V and -V in Figure 4, Figure 6 is a perspective view showing the boom of a power shovel, and Figure 7 is a cross-section showing the main parts of the base material for conventional boss member welding. It is a diagram. 1 is the base material, 2 is the boss member, 3 is the boss extension, and 5 is the hole in the material.
Claims (2)
取付部３を、母材１の他の部分に対して部分的に厚くし
たことを特徴とするボス部材溶接用母材。(1) A base material for welding a boss member characterized in that the boss attachment portion 3 of the base metal 1 into which the boss member 2 is fitted and welded is partially thickened relative to other parts of the base metal 1. .
の素材穴５をあけておき、この素材穴５をすえ込み加工
にて拡径変形することによりボス取付部の板厚を他の部
分より厚くするようにしたことを特徴とするボス部材溶
接用母材の製造方法。(2) A material hole 5 with a diameter smaller than the diameter of the boss member 2 is drilled in the boss mounting portion 3 of the base material 1, and the diameter of this material hole 5 is enlarged by swaging, thereby increasing the plate thickness of the boss mounting portion. A method for manufacturing a base material for welding a boss member, characterized in that the base material is made thicker than other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26845484A JPS61147940A (en) | 1984-12-21 | 1984-12-21 | Base metal for welding boss member and it production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26845484A JPS61147940A (en) | 1984-12-21 | 1984-12-21 | Base metal for welding boss member and it production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61147940A true JPS61147940A (en) | 1986-07-05 |
Family
ID=17458727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26845484A Pending JPS61147940A (en) | 1984-12-21 | 1984-12-21 | Base metal for welding boss member and it production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61147940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035376A (en) * | 1998-04-21 | 2000-02-02 | Hewlett Packard Co <Hp> | Optical component tester |
-
1984
- 1984-12-21 JP JP26845484A patent/JPS61147940A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035376A (en) * | 1998-04-21 | 2000-02-02 | Hewlett Packard Co <Hp> | Optical component tester |
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