JPS5935318B2 - resistance welding method - Google Patents
resistance welding methodInfo
- Publication number
- JPS5935318B2 JPS5935318B2 JP3340077A JP3340077A JPS5935318B2 JP S5935318 B2 JPS5935318 B2 JP S5935318B2 JP 3340077 A JP3340077 A JP 3340077A JP 3340077 A JP3340077 A JP 3340077A JP S5935318 B2 JPS5935318 B2 JP S5935318B2
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- protrusions
- welding method
- resistance welding
- resistance
- 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
Links
Landscapes
- Resistance Welding (AREA)
Description
【発明の詳細な説明】
本発明は、突起を用いて溶接を行う抵抗溶接に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to resistance welding in which welding is performed using protrusions.
従来の溶接方法では、突起３は、一般に第１図に示すも
のが使用されている。In conventional welding methods, the protrusion 3 shown in FIG. 1 is generally used.
この突起の表面は滑らかであり、素材表面と同様かまた
は、プレス型に当つて素材表面より滑らかな状態である
。突起３を設けた第１部材１の突起３部を第２部材２の
表面に接触させ、加圧、通電して行う溶接過程において
、突起３が第２部材２に加圧されると、突起先端部は、
第２部材２表面よ６多少めり込んで行く。このめり込ん
だ部分では、接触抵抗が小さくなり抵抗による発熱条件
が悪くなる。また、通電が行われると突起３部は赤熱さ
に加圧により第２部材２の表面に押し潰されて接触面積
が増加し抵抗値も小さくなつていく。この時の発熱源は
、突起３外周部へ移つていく。このように十分な接触抵
抗が得られない場合、接触部が溶融する前に突起３が潰
れてしまうことがあわ、ナゲツト生成が困難となる。本
発明は、突起表面と相手部材表面との発熱作用を促進し
、ナゲツトの生成を容易にすることを目的としたもので
ある。The surface of this protrusion is smooth, and is either the same as the surface of the material or smoother than the surface of the material when it hits the press die. In the welding process, which is performed by bringing the protrusion 3 of the first member 1 provided with the protrusion 3 into contact with the surface of the second member 2 and applying pressure and electricity, when the protrusion 3 is pressurized against the second member 2, the protrusion The tip is
It sinks into the surface of the second member 2 to some extent. In this recessed portion, the contact resistance is small and the heat generation conditions due to the resistance are worsened. Further, when electricity is applied, the protrusion 3 is pressed against the surface of the second member 2 due to red heat, the contact area increases, and the resistance value decreases. At this time, the heat source shifts to the outer periphery of the protrusion 3. If sufficient contact resistance is not obtained in this way, the protrusion 3 may collapse before the contact portion melts, making it difficult to form nuggets. The object of the present invention is to promote the heat generation effect between the surface of the protrusion and the surface of the mating member, thereby facilitating the formation of nuggets.
本発明は、突起表面と相手部材表面間の接触抵抗を常時
適性に保たせるため、従来の突起表面を凸凹にするよう
な複数のｄ洟起または突条を設けたものである。The present invention provides a plurality of ridges or protrusions that make the conventional protrusion surface uneven in order to maintain appropriate contact resistance between the protrusion surface and the mating member surface at all times.
第２図に示すように第１部材１に設けた突起３の表面に
複数のｄ俟起４または突条をプレス等で設ける。As shown in FIG. 2, a plurality of d-shaped protrusions 4 or protrusions are provided on the surface of the protrusion 3 provided on the first member 1 using a press or the like.
この突起３を電極により、相手の第２部材２表面に加圧
する。つぎにこの突起３と第２部材２間に電流を流して
やる。すると突起３表面と第２部材２表面との抵抗発熱
が起こり、突起３表・ 面および第２部材２表面が溶融
し始める。突起３は、徐々に潰されて〈るにしたがつて
ｄ俟起４または突条が次々と相手部材と接触し発熱、溶
融していき溶接が完了する。本発明を実施することによ
り下記の効果が得ら、れる。This protrusion 3 is pressed against the surface of the second member 2 of the other party by an electrode. Next, a current is passed between the protrusion 3 and the second member 2. Then, resistance heat generation occurs between the surface of the projection 3 and the surface of the second member 2, and the surface of the projection 3 and the surface of the second member 2 begin to melt. As the protrusion 3 is gradually crushed, the protrusions 4 or protrusions come into contact with the mating member one after another, generating heat and melting, completing the welding. By implementing the present invention, the following effects can be obtained.
溶接過程で常に有効な接触抵抗力滞られるため、安定し
た信頼性の高い溶接が可能となる。Since effective contact resistance force is always maintained during the welding process, stable and highly reliable welding is possible.
第１図に従来の一般的な半球形突起の断面を示フ す。
第２図に本発明の小突起または突条を持つた突起断面の
−例を示す。１は第１部材、２は第２部材、３は突起、
４は′卜突起である。Figure 1 shows a cross section of a conventional general hemispherical protrusion. FIG. 2 shows an example of a cross section of a projection having small projections or ridges according to the present invention. 1 is a first member, 2 is a second member, 3 is a protrusion,
4 is a protrusion.
Claims (1)
の突起または突条を設け、この突起または突条に第２の
部材を接触させ、第１の部材と第２の部材とに電流を流
し、加圧して第１の部材と第２の部材とを溶接する抵抗
溶接方法。1 A protrusion is provided on the first member, a large number of protrusions or protrusions are provided on the surface of the protrusion, the second member is brought into contact with the protrusion or the protrusion, and an electric current is applied to the first member and the second member. A resistance welding method in which a first member and a second member are welded by flowing and applying pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3340077A JPS5935318B2 (en) | 1977-03-28 | 1977-03-28 | resistance welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3340077A JPS5935318B2 (en) | 1977-03-28 | 1977-03-28 | resistance welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53119249A JPS53119249A (en) | 1978-10-18 |
| JPS5935318B2 true JPS5935318B2 (en) | 1984-08-28 |
Family
ID=12385536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3340077A Expired JPS5935318B2 (en) | 1977-03-28 | 1977-03-28 | resistance welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935318B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2011446C2 (en) * | 2013-09-16 | 2015-03-18 | Al S Technology B V | Projection welding metal sheets. |
| JP2017164771A (en) * | 2016-03-15 | 2017-09-21 | 株式会社日立ビルシステム | Projection welding method |
-
1977
- 1977-03-28 JP JP3340077A patent/JPS5935318B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53119249A (en) | 1978-10-18 |
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