CN100341657C - Resistive spot welding process - Google Patents
Resistive spot welding process Download PDFInfo
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- CN100341657C CN100341657C CNB2005100725115A CN200510072511A CN100341657C CN 100341657 C CN100341657 C CN 100341657C CN B2005100725115 A CNB2005100725115 A CN B2005100725115A CN 200510072511 A CN200510072511 A CN 200510072511A CN 100341657 C CN100341657 C CN 100341657C
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Abstract
The present invention discloses a resistive spot welding process which has connecting parts added between welding parts. The present invention has the advantages that the materials of the welding parts are steel or stainless steel; because small contact area of the connecting parts and the welding parts, good contact, current concentration, high heating speed, the impression of an electrode to a workpiece is small only by small electrode force; because the combination of the fast molten connecting parts with the upper welding parts and the lower welding parts results in small heat affected zone and high strength, and the diameter of a welding kernel is hardly relevant to the thickness of the workpiece, the large welding kernel can be obtain when the workpiece is thin. The materials of the welding parts are high electric conductivity material plates, or high heat conductivity material plates, or insulating material plates and steel plates or stainless steel plates which are welded through the connecting parts. The present invention overcomes the defects that the traditional resistive spot welding process can not connect high electric conductivity and high heat conductive materials (such as copper plates) and steel plates or stainless steel plates as well as non-metal material plates and steel plates or stainless steel plates. Compared with rivet connection and glue connection, the present invention has the advantages of high connection strength and good surface quality.
Description
Technical field:
The present invention relates to a kind of welding procedure, especially relate to a kind of resistance spot welding process that has connector.
Background technology:
Resistance spot welding is the resistance heat (mainly being the heat that the contact resistance between the workpiece produces) by workpiece itself, realizes to steel, stainless steel and aluminium being the welding of the metal sheet of material, is widely used in manufacturing industry such as automobile, aviation.Traditional resistance spot welding need not added any additional materials, in order to make between workpiece contact preferably, adds bigger pressure between electrode, so there is impression in workpiece after having welded, and influences the specious of workpiece; The heat affected area is arranged, the easy embrittlement of the metal of heat affected area; And the size of weldering nuclear is relevant with the thickness of workpiece, and when workpiece was thin, weldering nuclear was less, and bonding strength is low.
In addition, at present along with the special requirement of some machine constructions,, use the sandwich construction of steel or stainless steel and nonmetallic materials (as the highstrenghtpiston) as heat insulation, noise reduction etc.Because traditional spot-welding technology can not weld insulating materials and steel or stainless steel, and several methods of attachment below normal the employing: (1), riveted joint or bolt connect, and the two sides of this method workpiece all exists manufactured head or bolt head, the surface of the work out-of-flatness, not attractive in appearance, influence is used; And operation is many, and production efficiency is low.(2), adhering method, the joint of this method can only use at low temperatures, and intensity difference, to the cleaning of surface of the work require high, cost is high.
Summary of the invention:
The object of the present invention is to provide a kind of bonding strength height, a kind of resistance spot welding process that surface quality is good.
Purpose of the present invention is by following technology art scheme implementation: its process conditions are as follows: increase connector between weldment; Described connector is the circular connector of thin slice, or is the cone-shaped nail connector.”
The material of described weldment is a steel or stainless steel, connector to be shaped as thin slice circular, the outer ring diameter of described thin slice annulus connector is 0.7-0.9 a times of electrode diameter, and interior ring diameter is 0.2-0.4 a times of electrode diameter, and thickness is 0.5-1 times of workpiece minimum thickness.
The material of described weldment is the high conductive material plate, or thermoconductive material board, or dielectric panel and steel plate or corrosion resistant plate weld, connector be shaped as cone-shaped nail, the end face diameter of cone-shaped nail connector is 0.7-0.9 a times of electrode diameter, height is 1.1-1.3 a times of welding work pieces gross thickness, and drift angle is 30 °-35 °.
The material of described connector is a steel or stainless steel.
Described insulating materials is nonmetallic materials.
Advantage of the present invention is: the material of weldment is a steel or stainless steel, because the contact area of connector and weldment is little, contact is good and electric current is concentrated, and heat production speed is fast, so available less electrode force, and electrode is little at the impression of workpiece; Since connector fast fusing and weldment seam up and down together, the heat affected area is little, intensity is high, and the diameter of weldering nuclear is almost irrelevant with the thickness of workpiece, also can obtain bigger weldering nuclear when workpiece is thin.The material of weldment is a high conductive material, or Heat Conduction Material, or insulating materials and steel or stainless steel weld by connector, overcome that the traditional resistor spot-welding technology can not conduct electricity to height, Heat Conduction Material (as copper coin) and steel plate or corrosion resistant plate, and the shortcoming that is connected with steel plate or corrosion resistant plate of non-metallic plates.And compare with splicing with riveted joint, have bonding strength height, advantage that surface quality is good.
The specific embodiment:
Embodiment 1: a kind of resistance spot welding process, its process conditions are as follows: increase connector between weldment.The material of weldment is a steel, connector to be shaped as thin slice circular, the outer ring diameter of thin slice annulus connector is 0.7 times of electrode diameter, interior ring diameter is 0.2 times of electrode diameter, thickness is 0.5 times of workpiece minimum thickness.During welding, the thin slice annulus of steel or stainless steel is placed between the two-layer weldment, and with electrode pair in carry out spot welding.
Embodiment 2: a kind of resistance spot welding process, its process conditions are as follows: increase connector between weldment.The material of weldment is a stainless steel, connector to be shaped as thin slice circular, the outer ring diameter of thin slice annulus connector is 0.9 times of electrode diameter, interior ring diameter is 0.4 times of electrode diameter, thickness is 1 times of workpiece minimum thickness.During welding, the thin slice annulus of stainless steel or steel is placed between the two-layer weldment, and with electrode pair in carry out spot welding.
Embodiment 3: a kind of resistance spot welding process, its process conditions are as follows: increase connector between weldment.The material of weldment is a stainless steel, connector to be shaped as thin slice circular, the outer ring diameter of thin slice annulus connector is 0.8 times of electrode diameter, interior ring diameter is 0.3 times of electrode diameter, thickness is 0.8 times of workpiece minimum thickness.During welding, the thin slice annulus of stainless steel or steel is placed between the two-layer weldment, and with electrode pair in carry out spot welding.
Embodiment 4: a kind of resistance spot welding process, its process conditions are as follows: increase connector between weldment, the material of weldment is that high conductive material plate and steel plate are when welding, connector be shaped as a cone-shaped nail, the end face diameter of cone-shaped nail connector is 0.7 times of electrode diameter, height is 1.1 times of welding work pieces gross thickness, and drift angle is 30 °.The material of cone-shaped nail connector is a steel or stainless steel.In welding process, cone-shaped nail is pushed down into and penetrates the upper strata workpiece in the effect of electrode, feeds high electric current then, realizes the welding between cone-shaped nail and the lower floor's weldment.
Embodiment 5: a kind of resistance spot welding process, its process conditions are as follows: increase connector between weldment, the material of weldment is that thermoconductive material board and corrosion resistant plate are when welding, connector be shaped as a cone-shaped nail, the end face diameter of cone-shaped nail connector is 0.9 times of electrode diameter, height is 1.3 times of welding work pieces gross thickness, and drift angle is 35 °.The material of cone-shaped nail connector is a steel or stainless steel.In welding process, cone-shaped nail is pushed down into and penetrates the upper strata workpiece in the effect of electrode, feeds high electric current then, realizes the welding between cone-shaped nail and the lower floor's weldment.
Embodiment 6: a kind of resistance spot welding process, its process conditions are as follows: increase connector between weldment, the material of weldment is that described dielectric panel is a non-metallic plates, when welding as resinous material plate and corrosion resistant plate, connector be shaped as a cone-shaped nail, the end face diameter of cone-shaped nail connector is 0.8 times of electrode diameter, and height is 1.2 times of welding work pieces gross thickness, and drift angle is 32 °.The material of cone-shaped nail connector is a steel or stainless steel.In welding process, cone-shaped nail is pushed down into and penetrates the upper strata workpiece in the effect of electrode, feeds high electric current then, realizes the welding between cone-shaped nail and the lower floor's weldment.
Claims (5)
1, a kind of resistance spot welding process is characterized in that, its process conditions are as follows: increase connector between weldment; Described connector is the circular connector of thin slice, or is the cone-shaped nail connector.
2, a kind of resistance spot welding process according to claim 1, it is characterized in that, the material of described weldment is a steel or stainless steel, connector to be shaped as thin slice circular, the outer ring diameter of described thin slice annulus connector is 0.7-0.9 a times of electrode diameter, interior ring diameter is 0.2-0.4 a times of electrode diameter, and thickness is 0.5-1 times of workpiece minimum thickness.
3, a kind of resistance spot welding process according to claim 1, it is characterized in that, the material of described weldment is the high conductive material plate, or thermoconductive material board, or dielectric panel and steel plate or corrosion resistant plate weld, connector be shaped as cone-shaped nail, the end face diameter of cone-shaped nail connector be electrode diameter 0.7-0.9 doubly, height is 1.1-1.3 a times of welding work pieces gross thickness, and drift angle is 30 °-35 °.
4, according to claim 2 or 3 described a kind of resistance spot welding process, it is characterized in that the material of described connector is a steel or stainless steel.
5, a kind of resistance spot welding process according to claim 3 is characterized in that, described insulating materials is nonmetallic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100725115A CN100341657C (en) | 2005-05-10 | 2005-05-10 | Resistive spot welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100725115A CN100341657C (en) | 2005-05-10 | 2005-05-10 | Resistive spot welding process |
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| Publication Number | Publication Date |
|---|---|
| CN1672854A CN1672854A (en) | 2005-09-28 |
| CN100341657C true CN100341657C (en) | 2007-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100725115A Expired - Fee Related CN100341657C (en) | 2005-05-10 | 2005-05-10 | Resistive spot welding process |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5057557B2 (en) * | 2006-08-29 | 2012-10-24 | ダイハツ工業株式会社 | Series spot welding method and welding apparatus |
| JP4494496B2 (en) * | 2008-06-06 | 2010-06-30 | 本田技研工業株式会社 | Resistance welding method and welded structure |
| US8541110B2 (en) * | 2011-01-19 | 2013-09-24 | GM Global Technology Operations LLC | Resistance spot welding manufacture and method of forming same |
| CN103350276A (en) * | 2013-07-29 | 2013-10-16 | 天津大学 | Spot welding method and application thereof in aluminum alloy and steel |
| CN110560861A (en) * | 2019-09-12 | 2019-12-13 | 苏州阿福机器人有限公司 | Spot welding method for multi-layer conductor of motor winding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05318136A (en) * | 1992-05-07 | 1993-12-03 | Furukawa Alum Co Ltd | Resistance welding method for aluminum and aluminum alloy materials |
| US5565117A (en) * | 1993-12-27 | 1996-10-15 | Honda Giken Kogyo Kabushiki Kaisha | Method of resistance-welding workpieces of metal and resistance-welded weldment of metal |
| CN1034857C (en) * | 1992-09-22 | 1997-05-14 | 中国科学院金属研究所 | Resistance welding process |
| CN1101292C (en) * | 1994-11-08 | 2003-02-12 | 渡边统市 | Automatic assemblying system of galvanized steel sheet by spot welding |
-
2005
- 2005-05-10 CN CNB2005100725115A patent/CN100341657C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05318136A (en) * | 1992-05-07 | 1993-12-03 | Furukawa Alum Co Ltd | Resistance welding method for aluminum and aluminum alloy materials |
| CN1034857C (en) * | 1992-09-22 | 1997-05-14 | 中国科学院金属研究所 | Resistance welding process |
| US5565117A (en) * | 1993-12-27 | 1996-10-15 | Honda Giken Kogyo Kabushiki Kaisha | Method of resistance-welding workpieces of metal and resistance-welded weldment of metal |
| CN1101292C (en) * | 1994-11-08 | 2003-02-12 | 渡边统市 | Automatic assemblying system of galvanized steel sheet by spot welding |
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| CN1672854A (en) | 2005-09-28 |
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