WO2013062094A1 - Weld structure of thin member and attachment member - Google Patents
Weld structure of thin member and attachment member Download PDFInfo
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- WO2013062094A1 WO2013062094A1 PCT/JP2012/077758 JP2012077758W WO2013062094A1 WO 2013062094 A1 WO2013062094 A1 WO 2013062094A1 JP 2012077758 W JP2012077758 W JP 2012077758W WO 2013062094 A1 WO2013062094 A1 WO 2013062094A1
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- thin
- flange portion
- outer edge
- thickness
- thin member
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Classifications
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/032—Seam welding; Backing means; Inserts for three-dimensional seams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
Definitions
- the present invention relates to a welded structure of a thin member and an attachment member, in which a thin member and an outer edge of the flange portion are fillet welded by superimposing the flange portion of the attachment member having a larger heat capacity than the thin member on the thin member.
- Patent Document 1 in order to attach the exhaust pipe to the vehicle body, a bracket as an attachment member is attached to the exhaust pipe, and the exhaust pipe is attached to the vehicle body via the bracket. At that time, fillet welding is performed between the exhaust pipe and the outer edge of the flange portion of the bracket by arc welding.
- One aspect of the present invention is a welded structure between a thin member and an attachment member, and in the welded structure, the thin member and the flange portion of the attachment member having a larger heat capacity than the thin member are overlapped, The thin-walled member and the outer edge of the flange portion are fillet welded by arc welding. The thickness of the outer edge of the flange portion is reduced according to the thickness of the thin member.
- the thickness of the outer edge of the flange portion is between 0.5 and 2.0 times the thickness of the thin member. In that case, it is good also as a structure which formed the step part along the outer edge of the said flange part, provided the thin part in the outer edge end side of the said flange part, and made thickness of the outer edge of the said flange part thin. Or it is good also as a structure which formed the taper part along the outer edge of the said flange part, and made thickness of the outer edge end of the said flange part thin.
- the thin member may be an exhaust pipe
- the mounting member may be a sensor boss.
- the thickness of the outer edge of the flange portion is reduced in accordance with the thickness of the thin member. Even if the flange portions are overlapped and arc-welded, the effect of preventing burn-off can be achieved.
- fillet welding can be suitably performed by setting the thickness of the outer edge of the flange portion to be 0.5 to 2.0 times the thickness of the thin member. At this time, the thickness can be easily reduced by providing a thin portion to reduce the thickness of the outer edge of the flange portion, or forming a tapered portion to reduce the thickness of the outer edge end of the flange portion.
- the thin member 1 is a member having a thickness t of 0.4 mm to 1.8 mm (0.4 mm ⁇ t ⁇ 1.8 mm) such as an exhaust pipe
- the mounting member 2 is a sensor or the like. It is a member used as a sensor boss to which the is attached.
- the attachment member 2 is formed with flange portions 6 and 8 on both sides of the cylindrical portion 4, and the flange portion 6 of the attachment member 2 is formed in an arc shape according to the outer peripheral shape of the thin member 1.
- the thin-walled member 1 is not limited to the exhaust pipe, and may be a flat thin plate material that constitutes a side wall of a housing or the like.
- the attachment member 2 is not limited to the sensor boss, and may be any attachment member that is attached to the thin member 1 through the flange portion 6 by welding.
- the flange portion 6 of the attachment member 2 is thicker than the thin member 1, has a larger heat capacity than the thin member 1, and the thin member 1 and the attachment member 2 have greatly different heat capacities.
- MIG welding the thin-walled member 1 and the flange portion 6 of the mounting member 2 if the heat input is large, a hole may be opened due to melting of the thin-walled member 1, and if the heat input is small, the mounting member 2 will not melt. In some cases, sufficient welding strength cannot be obtained.
- the thin member 1 and the attachment member 2 are a combination of members in which it is difficult to select a welding condition for performing welding with which a sufficient welding strength can be obtained without opening a hole.
- the thickness T of one flange portion 6 is thicker than the thickness t of the thin member 1, and the thickness T of the flange portion 6 is about 2 to 2.5 mm even when it is thin.
- a thin portion 6 a is formed on the outer edge of the flange portion 6 along the outer edge. The thin portion 6 a is formed by forming a step portion 6 b on the flange portion 6 and reducing the thickness of the flange portion 6.
- the thickness T of the thin portion 6a is formed to be in the range of 0.5 to 2.0 times the thickness t of the thin member 1 (0.5 t ⁇ T ⁇ 2.0 t).
- the thin member 1 and the flange portion 6 of the mounting member 2 are overlapped, and the fillet is aimed at the corner between the outer edge of the thin portion 6a of one flange portion 6 and the thin member 1 with a welding torch 14 of arc welding, for example, MIG welding. Weld.
- the thickness T of the thin part 6a is made thinner than 0.5 times the thickness t of the thin member 1, the heat capacity on the one flange part 6 side becomes too small and the thin part 6a melts, but the thin member 1 Is difficult to melt. Further, if the thickness T of the thin portion 6a is thicker than 2.0 times the thickness t of the thin member 1, the heat capacity on the one flange portion 6 side becomes too large and the thin member 1 melts. The part 6a becomes difficult to melt.
- the flange portion 6 of the attachment member 2 is overlapped on the outer periphery of the thin member 1.
- the stacked thin member 1 and the flange portion 6 of the mounting member 2 are MIG welded.
- fillet welding is started by the welding torch 14 aiming at the corner between the outer edge of the thin portion 6 a of the flange portion 6 and the thin member 1, and the flange portion 6 and the thin member 1 are welded.
- the thin member 1 and the thin portion 6a of the flange portion 6 are close in thickness and have substantially the same heat capacity, appropriate welding can be performed under the fillet welding conditions of the thin member 1 with the thickness t, and the range of welding conditions is wide. Widens and facilitates welding.
- the configuration of the outer edge of the flange portion 6 is different from that of the first embodiment described above.
- a tapered portion 6c is formed on the outer edge of the flange portion 6.
- the taper portion 6c is formed so that the outer edge of the flange portion 6 is inclined, and the outer edge end of the flange portion 6 which is the outer end of the taper portion 6c is left with a thickness T.
- the inclination angle of the taper portion 6c may be, for example, about 30 to 60 degrees, and may be about 45 degrees. When it is close to a right angle exceeding 60 degrees, the heat capacity of the outer edge of the flange portion 6 becomes large and it becomes difficult to melt. If it is smaller than 30 degrees, the taper portion 6c becomes large, and the shape of the flange portion 6 becomes large.
- the thickness T of the outer edge of the flange portion 6 is formed to be in the range of 0.5 to 2.0 times the thickness t of the thin member 1 (0.5 t ⁇ T ⁇ 2.0 t). .
- the thin member 1 and the flange portion 6 of the attachment member 2 are overlapped, and fillet welding is performed by aiming at the corner between the outer edge of one flange portion 6 and the thin member 1 with a welding torch 14 of arc welding, for example, MIG welding.
- the thickness T of the outer edge of the flange portion 6 When the thickness T of the outer edge of the flange portion 6 is made thinner than 0.5 times the thickness t of the thin member 1, the heat capacity on one flange portion 6 side becomes too small and the outer edge of the flange portion 6 is melted. However, the thin member 1 is difficult to melt. Further, if the thickness T of the outer edge of the flange portion 6 is made larger than 2.0 times the thickness t of the thin member 1, the heat capacity on the one flange portion 6 side becomes too large and the thin member 1 is melted. However, the outer edge of the flange portion 6 is difficult to melt.
- the flange portion 6 of the attachment member 2 is overlapped on the outer periphery of the thin member 1.
- the stacked thin member 1 and the flange portion 6 of the mounting member 2 are MIG welded.
- fillet welding is started by the welding torch 14 aiming at the corner between the outer edge of the flange portion 6 and the thin member 1, and the flange portion 6 and the thin member 1 are welded.
- the tapered portion 6c is melted by welding, so that the strength of the flange portion 6 can be ensured. Furthermore, since the tapered portion 6c is provided, the weight of the flange portion 6 can be reduced accordingly.
- the present invention is not limited to such an embodiment, and can be implemented in various modes without departing from the gist of the present invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Exhaust Silencers (AREA)
Abstract
An aspect of the present invention is a weld structure of a thin member and an attachment member. In the weld structure, a thin member and a flange part of an attachment member with a greater thermal capacity than the thin member are overlapped and the thin member is fillet welded to the outer edge of the flange part with arc welding. The thickness of the outer edge of the flange part is made thinner according to the thickness of the thin member.
Description
本国際出願は、２０１１年１０月２６日に日本国特許庁に出願された日本国特許出願第２０１１－２３５１１７号に基づく優先権を主張するものであり、日本国特許出願第２０１１－２３５１１７号の全内容を本国際出願に援用する。
This international application claims priority based on Japanese Patent Application No. 2011-235117 filed with the Japan Patent Office on October 26, 2011, and is based on Japanese Patent Application No. 2011-235117. The entire contents are incorporated into this international application.
本発明は、薄肉部材に薄肉部材よりも熱容量の大きな取付部材のフランジ部を重ね合わせてアーク溶接により薄肉部材とフランジ部の外縁とを隅肉溶接する薄肉部材と取付部材との溶接構造に関する。
The present invention relates to a welded structure of a thin member and an attachment member, in which a thin member and an outer edge of the flange portion are fillet welded by superimposing the flange portion of the attachment member having a larger heat capacity than the thin member on the thin member.
従来より、特許文献１にあるように、排気管を車体に取付けるために、排気管に取付部材としてのブラケットを取り付け、ブラケットを介して排気管を車体に取付けるようにしている。その際、アーク溶接により、排気管とブラケットのフランジ部の外縁とを隅肉溶接している。
Conventionally, as disclosed in Patent Document 1, in order to attach the exhaust pipe to the vehicle body, a bracket as an attachment member is attached to the exhaust pipe, and the exhaust pipe is attached to the vehicle body via the bracket. At that time, fillet welding is performed between the exhaust pipe and the outer edge of the flange portion of the bracket by arc welding.
こうした従来のものでは、重量軽減のために、肉厚を薄くした排気管を用い、排気管に対して、取付部材の熱容量が大きい場合、アーク溶接すると、特に、ＭＩＧ溶接をすると、排気管側に溶け落ちが発生して穴が開くため、手直し修正ができず、排気管を破棄せざるを得ないという問題があった。
In such a conventional one, in order to reduce the weight, an exhaust pipe having a reduced thickness is used. When the heat capacity of the mounting member is large with respect to the exhaust pipe, arc welding is performed. As a result, a hole was opened due to melting of the gas, so that there was a problem that it was impossible to correct it and to discard the exhaust pipe.
本発明の一側面では、薄肉部材に薄肉部材よりも熱容量の大きな取付部材のフランジ部を重ねてアーク溶接しても、溶け落ちを防止できる溶接構造を提供することが望ましい。
In one aspect of the present invention, it is desirable to provide a welded structure that can prevent burn-off even when arc welding is performed by overlapping a flange portion of a mounting member having a larger heat capacity than a thin member on a thin member.
本発明の一局面は、薄肉部材と取付部材との溶接構造であり、当該溶接構造において、薄肉部材と、前記薄肉部材よりも熱容量の大きな前記取付部材のフランジ部とが、重ね合わされており、アーク溶接により前記薄肉部材と前記フランジ部の外縁とが隅肉溶接されている。前記フランジ部の外縁の厚さは、前記薄肉部材の肉厚に応じて薄くされている。
One aspect of the present invention is a welded structure between a thin member and an attachment member, and in the welded structure, the thin member and the flange portion of the attachment member having a larger heat capacity than the thin member are overlapped, The thin-walled member and the outer edge of the flange portion are fillet welded by arc welding. The thickness of the outer edge of the flange portion is reduced according to the thickness of the thin member.
前記フランジ部の外縁の厚さを前記薄肉部材の肉厚の０．５倍から２．０倍の間とすることが好ましい。その際、前記フランジ部の外縁に沿って段部を形成して前記フランジ部の外縁端側に薄肉部を設け前記フランジ部の外縁の厚さを薄くした構成としてもよい。あるいは、前記フランジ部の外縁に沿ってテーパ部を形成して前記フランジ部の外縁端の厚さを薄くした構成としてもよい。更に、前記薄肉部材は排気管で、前記取付部材はセンサーボスであってもよい。
It is preferable that the thickness of the outer edge of the flange portion is between 0.5 and 2.0 times the thickness of the thin member. In that case, it is good also as a structure which formed the step part along the outer edge of the said flange part, provided the thin part in the outer edge end side of the said flange part, and made thickness of the outer edge of the said flange part thin. Or it is good also as a structure which formed the taper part along the outer edge of the said flange part, and made thickness of the outer edge end of the said flange part thin. Further, the thin member may be an exhaust pipe, and the mounting member may be a sensor boss.
本発明の一局面の薄肉部材と取付部材との溶接構造は、フランジ部の外縁の厚さを薄肉部材の肉厚に応じて薄くしたので、薄肉部材に薄肉部材よりも熱容量の大きな取付部材のフランジ部を重ねてアーク溶接しても、溶け落ちを防止できるという効果を奏する。
In the welded structure between the thin member and the mounting member according to one aspect of the present invention, the thickness of the outer edge of the flange portion is reduced in accordance with the thickness of the thin member. Even if the flange portions are overlapped and arc-welded, the effect of preventing burn-off can be achieved.
また、フランジ部の外縁の厚さを薄肉部材の肉厚の０．５倍から２．０倍の間とすることにより、好適に隅肉溶接を行うことができる。その際、薄肉部を設けてフランジ部の外縁の厚さを薄く、あるいは、テーパ部を形成してフランジ部の外縁端の厚さを薄くすることにより、容易に厚さを薄くできる。
Also, fillet welding can be suitably performed by setting the thickness of the outer edge of the flange portion to be 0.5 to 2.0 times the thickness of the thin member. At this time, the thickness can be easily reduced by providing a thin portion to reduce the thickness of the outer edge of the flange portion, or forming a tapered portion to reduce the thickness of the outer edge end of the flange portion.
１…薄肉部材 ２…取付部材 ４…筒部 ６，８…フランジ部 ６ａ…薄肉部 ６ｂ…段部 ６ｃ…テーパ部 １４…溶接トーチ
DESCRIPTION OF SYMBOLS 1 ... Thin member 2 ... Mounting member 4 ... Tube part 6, 8 ... Flange part 6a ... Thin part 6b ... Step part 6c ... Tapered part 14 ... Welding torch
以下本発明を実施するための形態を図面に基づいて詳細に説明する。
図１に示すように、薄肉部材１は排気管等の肉厚ｔが０．４ｍｍから１．８ｍｍ（０．４ｍｍ≦ｔ≦１．８ｍｍ）の範囲の部材であり、取付部材２はセンサ等を取り付けるセンサーボスとして用いられる部材である。取付部材２には筒部４の両側において、それぞれフランジ部６，８が形成されており、取付部材２のフランジ部６は、薄肉部材１の外周形状に応じて円弧状に形成されている。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the thin member 1 is a member having a thickness t of 0.4 mm to 1.8 mm (0.4 mm ≦ t ≦ 1.8 mm) such as an exhaust pipe, and themounting member 2 is a sensor or the like. It is a member used as a sensor boss to which the is attached. The attachment member 2 is formed with flange portions 6 and 8 on both sides of the cylindrical portion 4, and the flange portion 6 of the attachment member 2 is formed in an arc shape according to the outer peripheral shape of the thin member 1.
図１に示すように、薄肉部材１は排気管等の肉厚ｔが０．４ｍｍから１．８ｍｍ（０．４ｍｍ≦ｔ≦１．８ｍｍ）の範囲の部材であり、取付部材２はセンサ等を取り付けるセンサーボスとして用いられる部材である。取付部材２には筒部４の両側において、それぞれフランジ部６，８が形成されており、取付部材２のフランジ部６は、薄肉部材１の外周形状に応じて円弧状に形成されている。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, the thin member 1 is a member having a thickness t of 0.4 mm to 1.8 mm (0.4 mm ≦ t ≦ 1.8 mm) such as an exhaust pipe, and the
尚、薄肉部材１は排気管に限らず、筐体等の側壁を構成する平坦な薄い板材でもよい。また、取付部材２はセンサーボスに限らず、薄肉部材１にフランジ部６を介して溶接により取り付ける取付部材であればよい。
The thin-walled member 1 is not limited to the exhaust pipe, and may be a flat thin plate material that constitutes a side wall of a housing or the like. The attachment member 2 is not limited to the sensor boss, and may be any attachment member that is attached to the thin member 1 through the flange portion 6 by welding.
取付部材２のフランジ部６は薄肉部材１の肉厚よりもその厚さが厚く、薄肉部材１よりも熱容量が大きく、薄肉部材１と取付部材２との熱容量が大きく異なる。薄肉部材１と取付部材２のフランジ部６とをＭＩＧ溶接する際、入熱が大きいと、薄肉部材１の溶融により穴が開く場合があり、入熱が小さいと、取付部材２の溶融が不十分で、十分な溶接強度が得られない場合がある。薄肉部材１と取付部材２とは、穴が開くことなく、十分な溶接強度が得られる溶接を行う溶接条件の選定が困難である部材の組み合わせである。
The flange portion 6 of the attachment member 2 is thicker than the thin member 1, has a larger heat capacity than the thin member 1, and the thin member 1 and the attachment member 2 have greatly different heat capacities. When MIG welding the thin-walled member 1 and the flange portion 6 of the mounting member 2, if the heat input is large, a hole may be opened due to melting of the thin-walled member 1, and if the heat input is small, the mounting member 2 will not melt. In some cases, sufficient welding strength cannot be obtained. The thin member 1 and the attachment member 2 are a combination of members in which it is difficult to select a welding condition for performing welding with which a sufficient welding strength can be obtained without opening a hole.
一方のフランジ部６の厚さＴは、薄肉部材１の肉厚ｔよりも厚く、フランジ部６の厚さＴは、薄い場合でも２～２．５ｍｍ程度である。フランジ部６の外縁には、外縁に沿って薄肉部６ａが形成されている。薄肉部６ａはフランジ部６に段部６ｂが形成されて、フランジ部６の肉厚を薄くして形成されている。
The thickness T of one flange portion 6 is thicker than the thickness t of the thin member 1, and the thickness T of the flange portion 6 is about 2 to 2.5 mm even when it is thin. A thin portion 6 a is formed on the outer edge of the flange portion 6 along the outer edge. The thin portion 6 a is formed by forming a step portion 6 b on the flange portion 6 and reducing the thickness of the flange portion 6.
薄肉部６ａの厚さＴは、薄肉部材１の肉厚ｔの０．５倍から２．０倍の範囲（０．５ｔ≦Ｔ≦２．０ｔ）となるように形成されている。薄肉部材１と取付部材２のフランジ部６とを重ね、アーク溶接、例えば、ＭＩＧ溶接の溶接トーチ１４で一方のフランジ部６の薄肉部６ａの外縁と薄肉部材１との角を狙って隅肉溶接する。
The thickness T of the thin portion 6a is formed to be in the range of 0.5 to 2.0 times the thickness t of the thin member 1 (0.5 t ≦ T ≦ 2.0 t). The thin member 1 and the flange portion 6 of the mounting member 2 are overlapped, and the fillet is aimed at the corner between the outer edge of the thin portion 6a of one flange portion 6 and the thin member 1 with a welding torch 14 of arc welding, for example, MIG welding. Weld.
薄肉部６ａの厚さＴを薄肉部材１の肉厚ｔの０．５倍よりも薄くすると、一方のフランジ部６側の熱容量が小さくなりすぎて、薄肉部６ａが溶融するが、薄肉部材１は溶融し難くなる。また、薄肉部６ａの厚さＴを薄肉部材１の肉厚ｔの２．０倍よりも厚くすると、一方のフランジ部６側の熱容量が大きくなりすぎて、薄肉部材１は溶融するが、薄肉部６ａは溶融し難くなる。
If the thickness T of the thin part 6a is made thinner than 0.5 times the thickness t of the thin member 1, the heat capacity on the one flange part 6 side becomes too small and the thin part 6a melts, but the thin member 1 Is difficult to melt. Further, if the thickness T of the thin portion 6a is thicker than 2.0 times the thickness t of the thin member 1, the heat capacity on the one flange portion 6 side becomes too large and the thin member 1 melts. The part 6a becomes difficult to melt.
次に、本第１実施形態の溶接構造の製作方法と製作された溶接構造の利点について説明する。薄肉部材１の外周に取付部材２のフランジ部６を重ねる。重ねた薄肉部材１と取付部材２のフランジ部６とをＭＩＧ溶接する。その際、溶接トーチ１４により、フランジ部６の薄肉部６ａの外縁端と薄肉部材１との角を狙って隅肉溶接が開始され、フランジ部６と薄肉部材１とが溶接される。
Next, the manufacturing method of the welded structure of the first embodiment and the advantages of the manufactured welded structure will be described. The flange portion 6 of the attachment member 2 is overlapped on the outer periphery of the thin member 1. The stacked thin member 1 and the flange portion 6 of the mounting member 2 are MIG welded. At that time, fillet welding is started by the welding torch 14 aiming at the corner between the outer edge of the thin portion 6 a of the flange portion 6 and the thin member 1, and the flange portion 6 and the thin member 1 are welded.
薄肉部材１とフランジ部６の薄肉部６ａとの肉厚が近く、熱容量がほぼ同じであるので、薄肉部材１の肉厚ｔの隅肉溶接条件で適切な溶接ができ、溶接条件の範囲が広くなり、溶接が容易となる。
Since the thin member 1 and the thin portion 6a of the flange portion 6 are close in thickness and have substantially the same heat capacity, appropriate welding can be performed under the fillet welding conditions of the thin member 1 with the thickness t, and the range of welding conditions is wide. Widens and facilitates welding.
また、薄肉部６ａを設けても、薄肉部６ａは溶接により溶融するので、フランジ部６の強度は確保できる。更に、薄肉部６ａを設けるので、フランジ部６の重量を軽減できる。
次に、前述した第１実施形態と異なる第２実施形態について、図２によって説明する。尚、前述した第１実施形態と同じ部材については同一番号を付して詳細な説明は繰り返さない。 Even if thethin portion 6a is provided, the thin portion 6a is melted by welding, so that the strength of the flange portion 6 can be ensured. Furthermore, since the thin part 6a is provided, the weight of the flange part 6 can be reduced.
Next, a second embodiment different from the first embodiment described above will be described with reference to FIG. The same members as those in the first embodiment described above are denoted by the same reference numerals and detailed description thereof will not be repeated.
次に、前述した第１実施形態と異なる第２実施形態について、図２によって説明する。尚、前述した第１実施形態と同じ部材については同一番号を付して詳細な説明は繰り返さない。 Even if the
Next, a second embodiment different from the first embodiment described above will be described with reference to FIG. The same members as those in the first embodiment described above are denoted by the same reference numerals and detailed description thereof will not be repeated.
本第２実施形態では、前述した第１実施形態とフランジ部６の外縁の構成が異なり、本第２実施形態では、フランジ部６の外縁にテーパ部６ｃを形成している。テーパ部６ｃはフランジ部６の外縁を傾斜させて、テーパ部６ｃの外側先端であるフランジ部６の外縁端は厚さＴが残るように形成されている。
In the second embodiment, the configuration of the outer edge of the flange portion 6 is different from that of the first embodiment described above. In the second embodiment, a tapered portion 6c is formed on the outer edge of the flange portion 6. The taper portion 6c is formed so that the outer edge of the flange portion 6 is inclined, and the outer edge end of the flange portion 6 which is the outer end of the taper portion 6c is left with a thickness T.
また、テーパ部６ｃの傾斜角度は、例えば、３０度から６０度程度に形成すればよく、４５度程度でもよい。６０度を超えて直角に近くなると、フランジ部６の外縁端の熱容量が大きくなり、溶融し難くなる。３０度よりも小さくすると、テーパ部６ｃが大きくなり、フランジ部６の形状が大きくなってしまう。
Further, the inclination angle of the taper portion 6c may be, for example, about 30 to 60 degrees, and may be about 45 degrees. When it is close to a right angle exceeding 60 degrees, the heat capacity of the outer edge of the flange portion 6 becomes large and it becomes difficult to melt. If it is smaller than 30 degrees, the taper portion 6c becomes large, and the shape of the flange portion 6 becomes large.
フランジ部６の外縁端の厚さＴは、薄肉部材１の肉厚ｔの０．５倍から２．０倍の範囲（０．５ｔ≦Ｔ≦２．０ｔ）となるように形成されている。薄肉部材１と取付部材２のフランジ部６とを重ね、アーク溶接、例えば、ＭＩＧ溶接の溶接トーチ１４で一方のフランジ部６の外縁端と薄肉部材１との角を狙って隅肉溶接する。
The thickness T of the outer edge of the flange portion 6 is formed to be in the range of 0.5 to 2.0 times the thickness t of the thin member 1 (0.5 t ≦ T ≦ 2.0 t). . The thin member 1 and the flange portion 6 of the attachment member 2 are overlapped, and fillet welding is performed by aiming at the corner between the outer edge of one flange portion 6 and the thin member 1 with a welding torch 14 of arc welding, for example, MIG welding.
フランジ部６の外縁端の厚さＴを薄肉部材１の肉厚ｔの０．５倍よりも薄くすると、一方のフランジ部６側の熱容量が小さくなりすぎて、フランジ部６の外縁が溶融するが、薄肉部材１は溶融し難くなる。また、フランジ部６の外縁端の厚さＴを薄肉部材１の肉厚ｔの２．０倍よりも厚くすると、一方のフランジ部６側の熱容量が大きくなりすぎて、薄肉部材１は溶融するが、フランジ部６の外縁端は溶融し難くなる。
When the thickness T of the outer edge of the flange portion 6 is made thinner than 0.5 times the thickness t of the thin member 1, the heat capacity on one flange portion 6 side becomes too small and the outer edge of the flange portion 6 is melted. However, the thin member 1 is difficult to melt. Further, if the thickness T of the outer edge of the flange portion 6 is made larger than 2.0 times the thickness t of the thin member 1, the heat capacity on the one flange portion 6 side becomes too large and the thin member 1 is melted. However, the outer edge of the flange portion 6 is difficult to melt.
次に、本第２実施形態の溶接構造の製作方法と製作された溶接構造の利点について説明する。薄肉部材１の外周に取付部材２のフランジ部６を重ねる。重ねた薄肉部材１と取付部材２のフランジ部６とをＭＩＧ溶接する。その際、溶接トーチ１４により、フランジ部６の外縁端と薄肉部材１との角を狙って隅肉溶接が開始され、フランジ部６と薄肉部材１とが溶接される。
Next, the manufacturing method of the welded structure of the second embodiment and the advantages of the manufactured welded structure will be described. The flange portion 6 of the attachment member 2 is overlapped on the outer periphery of the thin member 1. The stacked thin member 1 and the flange portion 6 of the mounting member 2 are MIG welded. At that time, fillet welding is started by the welding torch 14 aiming at the corner between the outer edge of the flange portion 6 and the thin member 1, and the flange portion 6 and the thin member 1 are welded.
薄肉部材１とフランジ部６の外縁端との肉厚が近く、熱容量がほぼ同じであるので、薄肉部材１の肉厚ｔの隅肉溶接条件で適切な溶接ができ、溶接条件の範囲が広くなり、溶接が容易となる。
Since the thickness of the thin member 1 and the outer edge of the flange portion 6 are close and the heat capacities are almost the same, appropriate welding can be performed under the fillet welding conditions of the thickness t of the thin member 1 and the range of welding conditions is wide. And welding becomes easy.
また、テーパ部６ｃを設けても、テーパ部６ｃは溶接により溶融するので、フランジ部６の強度は確保できる。更に、テーパ部６ｃを設けるので、それに応じてフランジ部６の重量を軽減できる。
Moreover, even if the tapered portion 6c is provided, the tapered portion 6c is melted by welding, so that the strength of the flange portion 6 can be ensured. Furthermore, since the tapered portion 6c is provided, the weight of the flange portion 6 can be reduced accordingly.
以上本発明はこの様な実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲において種々なる態様で実施し得る。
As described above, the present invention is not limited to such an embodiment, and can be implemented in various modes without departing from the gist of the present invention.
Claims (5)
- 薄肉部材と取付部材との溶接構造であって、
前記薄肉部材と、前記薄肉部材よりも熱容量の大きな前記取付部材のフランジ部とが重ね合わされ、アーク溶接により前記薄肉部材と前記フランジ部の外縁とが隅肉溶接されていて、
前記フランジ部の外縁の厚さは、前記薄肉部材の肉厚に応じて薄くされている、溶接構造。 It is a welded structure between a thin member and a mounting member,
The thin member and the flange portion of the mounting member having a larger heat capacity than the thin member are overlapped, and the thin member and the outer edge of the flange portion are fillet welded by arc welding,
The thickness of the outer edge of the said flange part is a welding structure made thin according to the thickness of the said thin member. - 前記フランジ部の外縁の厚さが前記薄肉部材の肉厚の０．５倍から２．０倍の間とした、請求項１に記載の溶接構造。 The welded structure according to claim 1, wherein a thickness of an outer edge of the flange portion is between 0.5 and 2.0 times a thickness of the thin member.
- 前記フランジ部の外縁に沿って段部が設けられ、前記フランジ部の外縁端側に薄肉部が設けられ、前記フランジ部の外縁の厚さが薄くされた、請求項１または請求項２に記載の溶接構造。 3. The step according to claim 1, wherein a step portion is provided along an outer edge of the flange portion, a thin portion is provided on an outer edge end side of the flange portion, and a thickness of the outer edge of the flange portion is reduced. Welding structure.
- 前記フランジ部の外縁に沿ってテーパ部が設けられ、前記フランジ部の外縁端の厚さが、薄くされた、請求項１または請求項２に記載の溶接構造。 The welded structure according to claim 1, wherein a taper portion is provided along an outer edge of the flange portion, and a thickness of an outer edge end of the flange portion is reduced.
- 前記薄肉部材は排気管で、前記取付部材はセンサーボスである、請求項１ないし請求項５のいずれか１項に記載の溶接構造。 The welded structure according to any one of claims 1 to 5, wherein the thin member is an exhaust pipe, and the attachment member is a sensor boss.
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| JP2011235117A JP2013092120A (en) | 2011-10-26 | 2011-10-26 | Weld structure of thin member and attachment member |
| JP2011-235117 | 2011-10-26 |
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| JP2016013741A (en) * | 2014-07-01 | 2016-01-28 | ユニプレス株式会社 | Steering member device |
| CN104368938B (en) * | 2014-11-21 | 2016-03-02 | 张家港格林沙洲锅炉有限公司 | For making the frock of screw guide shell |
| JP6970002B2 (en) * | 2017-12-18 | 2021-11-24 | トヨタ自動車株式会社 | Exhaust system parts with mass |
| JP2020099934A (en) * | 2018-12-25 | 2020-07-02 | トヨタ自動車株式会社 | Weld joint |
| JP7148560B2 (en) * | 2020-02-28 | 2022-10-05 | フタバ産業株式会社 | Sensor boss and sensor boss mounting structure |
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| JPS6123580A (en) * | 1984-07-11 | 1986-02-01 | Kobe Steel Ltd | Welding method of al or al-based alloy member |
| JP2000126866A (en) * | 1998-08-21 | 2000-05-09 | Sanyo Enji:Kk | Joint of thin wall tube and its welding method |
| JP2006070794A (en) * | 2004-09-01 | 2006-03-16 | Calsonic Kansei Corp | Boss part structure for attaching sensor |
| JP2007107624A (en) * | 2005-10-14 | 2007-04-26 | Sango Co Ltd | Joint structure |
-
2011
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123580A (en) * | 1984-07-11 | 1986-02-01 | Kobe Steel Ltd | Welding method of al or al-based alloy member |
| JP2000126866A (en) * | 1998-08-21 | 2000-05-09 | Sanyo Enji:Kk | Joint of thin wall tube and its welding method |
| JP2006070794A (en) * | 2004-09-01 | 2006-03-16 | Calsonic Kansei Corp | Boss part structure for attaching sensor |
| JP2007107624A (en) * | 2005-10-14 | 2007-04-26 | Sango Co Ltd | Joint structure |
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