CN102917832A - Welding method of coated steel plate - Google Patents
Welding method of coated steel plate Download PDFInfo
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- CN102917832A CN102917832A CN2011800245291A CN201180024529A CN102917832A CN 102917832 A CN102917832 A CN 102917832A CN 2011800245291 A CN2011800245291 A CN 2011800245291A CN 201180024529 A CN201180024529 A CN 201180024529A CN 102917832 A CN102917832 A CN 102917832A
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- coated steel
- insulating coating
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/14—Projection welding
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
- B23K11/163—Welding of coated materials
- B23K11/166—Welding of coated materials of galvanized or tinned materials
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Resistance Welding (AREA)
Abstract
In a metal plate having one surface covered with an insulating film, a metal body is pressed from the side where no insulating film is present by using a punch having a flat tip and a punch die paired with the punch, whereby the metal body at the lower end portion of the inner surface of the punch hole is exposed on the side of the insulating film formation surface, and resistance welding is performed by bringing the exposed portion into contact with the metal body to be joined and energizing.
Description
Technical field
The present invention relates to the method to single face is insulated the face that is covered by insulating coating of metallic plate that overlay film covers and the metallic object that is in contact with it is switched on and utilized resistance welding method to engage.
Background technology
In the metal-made structure, in order to improve corrosion resistance, to improve outward appearance etc. and technology that the insulating coatings such as coat film are set is employed in all fields in every way.
As the method that insulating coating is set, have directly and make structure with metallic plate, and in subsequent handling the situation of superinsulation overlay film, the situation of using the metallic plate that is covered by insulating coating to make up structure is also arranged.In the situation that directly make structure with metallic plate and in subsequent handling the superinsulation overlay film, adopt resistance welded to assemble needed joint method as it more.
But the cost of the subsequent handling of superinsulation overlay film is compared with the situation that the metallic plate that is attached with in advance insulating coating is assembled, and its price improves.Therefore, wish to come assembled structural body with the metallic plate that is attached with in advance insulating coating.As joint method in this case, owing to existing insulating coating not switch on and can not carrying out resistance welded, so the joint method that utilizes rivet, screw-nut or screw that adopts more.But, adopted the joint method of appurtenances can increase the weight of the structure behind the joint, and because the appurtenances part also has cost, the price of structure also correspondingly gone up.Therefore, even be attached with the metallic object of insulating coating, also to consider to engage the method for usefulness.
For example, following method has been proposed in patent documentation 1, that is: the face side a side of the metallic object that will engage exists in the situation of insulating coating, utilization the side that overlay film is arranged of two metallic objects that will engage arrange bossed electrode and paired electrode from up and down to two metallic objects pressurizations, thereby wear out overlay film and to the metallic object energising and utilize resistance welded to engage.
In addition, following method has been proposed in patent documentation 2, that is: exist in the situation of insulating coating when the face side a side of the metallic object that will engage, utilization arranges the perforate on overlay film of bossed metal die in the side that overlay film is arranged of two metallic objects that will engage, then with pair of electrodes from up and down to the pressurization of two metallic objects, thereby to the metallic object energising and utilize resistance welded to engage.
In addition, following method has been proposed in patent documentation 3, that is: exist in the situation of insulating coating when the composition surface a side of the metallic object that will engage, perforate on the metallic object of overlay film is being arranged, at another metallic object that does not have overlay film pyramidal projection is set, under with the overlapping state of the contacted mode in the position of exposing metallic object in projection and hole, utilize pair of electrodes from up and down to the pressurization of two metallic objects, thereby to the metallic object energising and utilize resistance welded to engage.
In addition, following method has been proposed in patent documentation 4, that is: exist in the situation of insulating coating on a side's of the metallic object that will engage composition surface, metal die with tip is having perforate on the metallic object of overlay film, wearing out of the hole that makes metallic object under fore-end and the state that another metallic object that can switch on contacts of overlay film, with pair of electrodes from up and down to the pressurization of two metallic objects, thereby to the metallic object energising and utilize resistance welded to engage.
Technical literature formerly
［ patent documentation ］
Patent documentation 1: TOHKEMY 2000-263248 communique
Patent documentation 2: Japanese kokai publication hei 7-9161 communique
Patent documentation 3: Japanese kokai publication hei 5-154667 communique
Patent documentation 4: TOHKEMY 2007-125602 communique
Summary of the invention
(problem that invention will solve)
But in the method that patent documentation 1 proposes, the electrode of wearing out insulating coating one side must be to be provided with front end to be the electrode of the projection of the sharp shape of the degree that can wear out overlay film, and electrode must be point or fine rule foremost.
Therefore, can't flow through the welding current of the such rapid increase of the situation of electric capacity energy storage type resistance welded, and only limit to utilize the resistance welded of the welding current of minimum capacity.And, since when resistance welded to applying necessary MIN plus-pressure between two welding electrodes, so because welding current and the plus-pressure that applies between welding electrode make the leading section of electrode be easy to damage or distortion, can't directly wear out overlay film, therefore, necessary frequent electrode is difficult to adopt such method for resistance welding in the weld job of reality.In addition, in the situation that metallic object is thin, the electrode front end can run through metallic object because of plus-pressure, makes electric current directly flow through the metallic object that does not have overlay film and can not weld, and therefore, must carry out high-precision plus-pressure control.In addition, even exist on the composition surface of metallic object in the situation of overlay film, also can be owing to the electrode front end passes metallic object in not having the metallic object of overlay film direct current flowing, therefore can not weld.
In addition, in the method that patent documentation 2 proposes, utilize metal die perforate on the overlay film on the surface of the metallic object that will weld, with electrode from pressurization up and down and it is switched on to weld, but in the high situation of the flexibility of the thick situation of overlay film or overlay film, even perforate can not obtain welding electrode and the area that the metallic object of overlay film inboard contacts, be difficult to carry out the resistance welded based on energising.And, identical with patent documentation 1, exist in the situation of overlay film at the face of the joint of metallic object, can not wear out overlay film and can't weld.
In addition, in the method that patent documentation 3 proposes, utilize metal die perforate on the metallic object that has overlay film one side, at another metallic object without overlay film that will engage projection is set, making projection contact and switch on the position of exposing metallic object in hole engages, but this method must be implemented to the both sides of two metallic objects that will engage processing, because the time of processing and the relation of needed activity duration thereof improve cost.In addition, in the situation that there are a plurality of junctions, corresponding hole and the position of projection are aimed at fully, therefore be required high-precision processing.
Moreover, in the method that patent documentation 4 proposes, with instrument perforate on the metallic object of a side that has overlay film of tip, make the position of exposing metallic object contact to carry out resistance welded with the position that switches on of another metallic object, basically solved above-mentioned patent documentation 1,2,3 problem.
But, in the situations such as the thickness of slab of the metallic object of perforate is thick, must make the instrument rotation, this just needs the structure that drives up and down and the structure of rotary actuation, and cost of equipment is uprised.In addition, well-known, bond strength and bonding area are proportional, and in order to increase bond strength, just must enlarge with the hole that the instrument of tip leaves, and increase the area at the position that switches on that contacts another metallic object that will engage.
But, if more than will being extended to a certain degree with the hole that the instrument of tip leaves, then shown in Fig. 1 (a), can cause porous dehiscence to be held, so not only can not enlarge active surface, and the fore-end in the hole that the electric current concentrations comes to a point in splitting during energising, can produce spark and be difficult to engage.In addition, for enlarge active surface, the height of the projection on the instrument of tip is uprised.In the situation that has engaged high projection, owing to the residual motlten metal that the amount of the height that is equivalent to projection is arranged between two metallic objects that engage, so the gap can occur.If increase the electrode plus-pressure when engaging, then motlten metal can be extruded when engaging and can carry out gapless joint, if but the electrode plus-pressure is high, then contact area can become excessive voltage also must be high, insulating coating can sustain damage because of high-tension heat input.
The present invention proposes for addressing these problems, and its purpose is to provide a kind of can be insulated the face that is covered by insulating coating of metallic plate that overlay film covers and the face energising that is in contact with it and with the two method of utilizing resistance welded to engage to single face.
(measure of dealing with problems)
In the welding method of coated steel plates of the present invention, in order to reach above-mentioned purpose, be insulated at single face on the metallic plate of overlay film covering, with the smooth punching machine of front end shape and with it paired stamping die never a side of insulating coating metallic object is carried out punching press, the metallic object of punching hole inner surface bottom is exposed in insulating coating formation face one side, and this exposed division is contacted with the metallic object that will engage and switch on, and utilize resistance welded to carry out combination.
Expose for the metallic object that makes punching hole inner surface bottom forms face one side at insulating coating, carry out the punching machine of punching press and the shape of stamping die and be preferably the punching press cross section for circular.
In addition, as employed punching machine, be preferably front end smooth and have and be equivalent to the cylindrical portion that this tabular surface vertically extends and the cone portion that continues with this cylindrical portion, perhaps front end is smooth and have the cylindrical portion of vertically extending with this tabular surface and the cone portion continuous with it, also has the large diameter cylinder section continuous with this cone portion.
When shown in following formula (1), having defined the amount of leaving a blank, be preferably above-mentioned punching machine when metal tape is carried out punching press and the amount of leaving a blank between the above-mentioned stamping die and be made as 60～320%, be more preferably and be made as 60～100%.
The amount of leaving a blank (%)={ (Dd-Dp)/2 }/t * 100 ... (1)
Wherein, Dd: the diameter of stamping die (mm), Dp: the diameter of punching machine (mm), t: the thickness of slab of metallic plate (mm).
(invention effect)
According to the present invention, can between the face that is covered by insulating coating of the metallic plate that the insulating coatings such as the coated film of single face cover and the face that is in contact with it, switch on, and only adopt resistance welding method to engage the two, thereby can easily make up metal structure.And, can guarantee for the contact area of energising greatly, and can stably carry out follow-up resistance welded.
Therefore, can be provided at the aspects such as corrosion resistance, outward appearance with low cost superior, and the high high-quality metal structure of bond strength.
Description of drawings
Fig. 1 be explanation based on the figure of the formation method of the thrust of punching press, be existing method (a), (b) be method of the present invention.
Fig. 2 is the figure that the explanation thrust forms the relation of the punching machine diameter of usefulness and stamping die diameter.
Fig. 3 is that explanation increases the figure that the annular metal that exposes from insulating coating exposes the method for area.
Fig. 4 is the concept map that the thrust welding that adopts in an embodiment is described.
The specific embodiment
In order to improve corrosion resistance, outward appearance etc., if the metallic object that is provided with the insulating coatings such as coat film can be carried out resistance welded being provided with under the state of insulating coating, then can be provided at low cost the good metallic object works in aspect such as corrosion resistance, outward appearance.
Therefore, the present inventor waits repeatedly and to being used for being insulated the face that is covered by insulating coating of metallic plate that overlay film covers and the face energising that is in contact with it and fetching with electric resistance welding single face various researchs has been carried out in the measure of the two joint.
To engage the face that is covered by insulating coating in order fetching with electric resistance welding, must to make insulating coating extremely thin or it is worn out and switch on.Owing in order to make insulating coating extremely thin, also needing the metallic plate attenuate, so can reduce significantly the intensity of the metal plate structure body behind the joint.
As the method for wearing out insulating coating, shown in above-mentioned patent documentation 4, there is the instrument that front end is sharp-pointed to be pressed in the metallic object that is formed with overlay film and perforate, the measure of exposing metallic object.
But, when adopting the hole of the size of this measure more than opening to a certain degree, shown in Fig. 1 (a), can cause porous dehiscence to be held and metallic object is exposed with the sharp-pointed shape of front end, splitting and the fore-end in sharp-pointed hole powers on and flows through in concentrating in when energising, can produce spark and be difficult to engage.
If use the sharp-pointed instrument of front end then can produce problem described above, therefore, carried out the research to following method: the use front end is smooth and be punching machine cylindraceous and stamping die, and never a side of insulating coating is carried out punching press and perforate to metallic plate, to remove insulating coating.
But, even with front end smooth and for punching machine cylindraceous and stamping die merely punching press remove insulating coating, also can owing to contact-making surface that another metallic plate that can switch on that will engage contacts between residually insulating coating is arranged and can't switch on.In common stamping procedure, because the amount of leaving a blank between punching machine and the stamping die is less, so so-called " limit of collapsing ", " burr " etc. are less, cause insulating coating being arranged the front end of through hole is residual.
Therefore, with respect to the punching machine of stamped metal mould, can use diameter to compare sizable stamping die metal die with the diameter of punching machine, under large condition such as the shape change of so-called " limit of collapsing ", " burr " etc., carry out punching press.
By carry out punching under this condition, shown in Fig. 1 (b), it is large that the shape of so-called " limit of collapsing ", " burr " etc. becomes, and metallic object exposes at the front end of through hole and is ring-type.Be ring-type if metallic object exposes, then with the contact that becomes wire that contacts of the metal section of the other side's metal parts, contact with existing point-like and to compare, can guarantee the energising area that contact area is large, can carry out stable resistance welded.
In addition, the diameter of stamping die is preferably with respect to the relation of the diameter of employed punching machine, is formed at shape on the through hole after the punching press, so-called " limit of collapsing ", " burr " etc. and is the bigger the better.That is, be preferably and arrange the amount of leaving a blank larger.If " burr " are little, the metallic object of the ring-type of then exposing can not be exposed to the outside of insulating coating, and metallic object and the other side's metallic object contacting each other is insufficient.But if the amount of leaving a blank is excessive, then forming the scope of " limit of collapsing ", " burr " etc. by punching press can be excessive and metallic object is fully exposed.
In addition, in when welding, can depress distortion such as causing " limit of collapsing ", " burr " in adding of electrode, the part of switching on of exposing by punching press can not contact with the part of switching on of the metallic object of the pairing that will engage.In addition, the metallic plate of punching press does not separate with the metallic plate that is stamped but left behind, and before carrying out for the energising that engages, operation or mechanically actuated etc. are removed by hand, can increase time like this and cost is risen.
But well-known, bond strength and the bonding area of resistance welded are proportional.In the holed situation of metal pattern that with front end is tip, for expanded hole, must carry out based on the reaming processing of cone or based on the reaming processing of rushing edge processing, but in the present invention, if the punching machine of stamped sheet metal and the size of stamping die are increased, then can increase bonding area.
In addition, expose to such an extent that the intensity of the metallic plate after engaging at most is high and stable in the part that can switch on the projection front end of the metallic plate of punching press.If will arrange widelyr at the line width that the through hole front end is exposed to the metallic object ring of insulating coating, and just can make the part that to switch on expose manyly.
Detailed content is discussed in the record of the embodiment of back, and only from the viewpoint of weldability, the amount of leaving a blank is preferably 60～320%.For the metallic plate that washes out is separated from the metallic plate that is stamped, need to make the above-mentioned amount of leaving a blank is 60～100%.
In addition, as shown in Figure 2, when establishing diameter (mm) that the diameter that Dp is stamping die (mm), Dp are punching machine, thickness of slab (mm) that t is metallic plate, the amount of leaving a blank is defined as following (1) formula.
The amount of leaving a blank (%)={ (Dd-Dp)/2 }/t * 100 ... (1)
As making the part that to switch on expose to get many methods, effectively: have from the vertical position of front end, be used in this top, position and be provided with the punching machine of cone with the end face bends of punching hole, make the part that to switch on contact manyly with the metallic plate that will engage.
Namely, as shown in Figure 3, use front end smooth and have the cylindrical portion of vertically extending with this tabular surface and with the punching machine of the continuous cone portion of this cylindrical portion, to implement with cone portion perforate processing part " limit of collapsing " bending and make the part that can switch on expose manyly (Fig. 3-a), perhaps, use has the punching machine with the continuous large diameter cylinder section of above-mentioned cone portion, smooth out with the fingers " limit of collapsing " limit with large diameter cylinder section limit and rush edge processing (Fig. 3-b), thus, can make the part that to switch on contact manyly with the metallic plate that will engage.
Contact area when enlarging resistance welded, the edge processing of rushing shown in Fig. 3-b is effectively, if but by rushing edge to smooth out with the fingers quantitative change large, then the thickness of slab of jut reduces, the energising area can reduce.Therefore, bonding area minimizing, bond strength reduce.
Detailed content is discussed in the embodiment of back, but the punching machine that has small diameter cylinder section and large diameter cylinder section in use, and rush with large diameter cylinder section in the situation of edge processing, the amount of leaving a blank of large diameter cylinder section is preferably below 0.9 with respect to the ratio of the amount of leaving a blank of small diameter cylinder section.
But the metal exposed division can reduce if above-mentioned ratio is too small, so its lower limit is preferably about 0.5.
Then, the optimal way of resistance welded is described.
Preferably, adopt in resistance welded weld interval short, and the short capacitive projection welding method of time that is influenced by heat of insulating coating.If electrifying method is that an electrode is carried out punching press and from the top thrust pressurizeed, paired electrode can be switched on to the indirect mode that another steel plate that will engage pressurizes from the direction identical with another electrode, then can carry out insulating coating is not had the joint of damage.
As described above, if be insulated at single face on the metallic plate of overlay film covering, with the smooth punching machine of front end shape and the stamping die paired with it never a side of insulating coating metallic object is carried out punching press, thus, the metallic object that makes punching hole inner surface bottom forms face one side at insulating coating and exposes and this exposed division is contacted with the metallic object that will engage also can switch on, then can easily utilize resistance welding method to carry out combination.
Embodiment
Embodiment 1:
As the material that is used for projection welding, only use single face at the hot-dip galvanized steel sheet of long 70mm, wide 40mm, thickness of slab 0.8mm to be coated with steel plate as the organic overlay film of insulating coating.
Owing to having surface and the joint on the surface of this overlay film not of this overlay film, so be positioned at the junction of coated steel plates of a side on composition surface at overlay film, use the various punching machines that changed the amount of leaving a blank and stamping die never overlay film one side metallic object is carried out punching press and thrust is set.
The diameter (Dp) of the employed punching machine of expression, diameter (Dd) and the amount of leaving a blank of stamping die in table 1.In addition, the front end shape of punching machine is smooth and diameter is as shown in table 1.
［ table 1 ］
Table 1: the punching machine of use, stamping die and the amount of leaving a blank (embodiment 1)
As shown in Figure 4, the thrust of the coated steel plates after the punching press is overlapping in the mode that contacts with the face of switching on that does not have overlay film of the coated steel plates that will engage, and engage with the condenser type projection welding.Electrifying method has been implemented following (indirect type) method: an electrode is positioned at the top of thrust, and paired electrode contacts with the face that does not have overlay film and can switch on of the steel plate that will engage that is not provided with thrust in a side identical with another electrode.In addition, the electrode plus-pressure is that 0.4kN, voltage are 120V.
Then, the conjugant that obtains has been measured shear strength.Its result of expression in table 2.
［ table 2 ］
Table 2: punching press situation and maximum shear load (embodiment 1)
In test No.1, produced spark and can't engage.This is because the amount of leaving a blank between punching machine and the stamping die is little, so " burr " are little, causes that the front end of the through hole after punching press is residual an insulating coating.In addition, in test No.8, also can't engage.This scope that forms " burr " owing to the amount of leaving a blank is wide broadens, and in the adding to depress and cause distortion of the electrode in when welding, can't fully expose metallic object.
In other test No.2～7, can engage fully.In addition, in test No.4～7, owing to residual punched metal sheet is arranged, so before pressurization engages, remove.
In addition, in test No.2～7, the situation that the coat film at the position behind joint can not be peeled off has obtained good outward appearance.
According to the above results, if be judged as the amount of leaving a blank at 60～320% scope, the good appearance that then can obtain sufficient bond strength and not have coat film to peel off.
Embodiment 2:
In above-mentioned example, if leave a blank quantitative change greatly then punched metal sheet can residually be arranged.
Therefore, set the tiny amount of leaving a blank, observed the residual situation of punched metal sheet.
As punching machine and stamping die, use size as shown in table 3, similarly to Example 1 metallic plate has been carried out punching press.
The residual situation of expression punched metal sheet in table 4.
According to the above results, be below 100% if be judged as the amount of leaving a blank, then can residual punched metal sheet after punching press, before pressurization engages, do not remove punched metal sheet and can carry out projection welding yet.
Comparing with the result of embodiment 1, is 60～100% if be judged as the amount of leaving a blank, and just there is no need to remove punched metal sheet, can carry out easily projection welding.
［ table 3 ］
Table 3: the punching machine of use, stamping die and the amount of leaving a blank (embodiment 2)
［ table 4 ］
Table 4: the Restzustand of punched metal sheet (embodiment 2)
| No. | The punching press situation | Remarks |
| 11 | Separate | 10 separation in 10 times |
| 12 | Separate | 10 separation in 10 times |
| 13 | Separate | 10 separation in 10 times |
| 14 | Separate | 10 separation in 10 times |
| 15 | A part is residual | 8 separation in 10 times |
| 16 | All residual | 0 separation in 10 times |
| 17 | All residual | 0 separation in 10 times |
| 18 | All residual | 0 separation in 10 times |
Embodiment 3:
In above-mentioned record, the contact area when enlarging resistance welded, illustrated shown in Fig. 3-b to rush edge processing be effective situation.
Therefore, trial is to such shown in Fig. 3-b, use has the punching machine of small diameter cylinder section and large diameter cylinder section, and the impact of rushing the amount of leaving a blank of the amount of leaving a blank in the situation of edge processing, small diameter cylinder section and large diameter cylinder section with large diameter cylinder section is studied.
As punching machine and stamping die, use the size shown in table 5,6, and similarly to Example 1 metallic plate has been carried out punching press.
Similarly to Example 1, electrode plus-pressure and voltage are carried out various changes as shown in table 7ly, and engage with projection welding.
About the coat film state, all there is not the situation of peeling off on the coat film at the position after engaging under all experimental conditions, obtained good appearance.
Then, the conjugant that obtains has been measured shear strength.Its result is illustrated in the table 7 in the lump.
According to the result of table 7, can understand the validity of rushing edge processing.
［ table 5 ］
Table 5: the punching machine of use, stamping die (embodiment 3)
［ table 6 ］
Table 6: the punching machine of use, the amount of leaving a blank of stamping die (embodiment 3)
［ table 7 ］
Table 7: punching press situation and maximum shear load (embodiment 3)
Claims (6)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010113021 | 2010-05-17 | ||
| JP2010-113021 | 2010-05-17 | ||
| PCT/JP2011/060912 WO2011145506A1 (en) | 2010-05-17 | 2011-05-12 | Method for welding coated steel plate |
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| Publication Number | Publication Date |
|---|---|
| CN102917832A true CN102917832A (en) | 2013-02-06 |
| CN102917832B CN102917832B (en) | 2016-01-27 |
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| CN201180024529.1A Expired - Fee Related CN102917832B (en) | 2010-05-17 | 2011-05-12 | Welding method of coated steel plate |
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| JP (1) | JP5804765B2 (en) |
| CN (1) | CN102917832B (en) |
| AU (1) | AU2011256544B2 (en) |
| WO (1) | WO2011145506A1 (en) |
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| JPS60137580A (en) * | 1983-12-26 | 1985-07-22 | Mazda Motor Corp | Method of welding nut to steel plate having insulating layer |
| JPH02280975A (en) * | 1989-04-19 | 1990-11-16 | Mitsubishi Electric Corp | Projection for resistance welding and projection welding method |
| JPH03106518A (en) * | 1989-09-20 | 1991-05-07 | Hitachi Ltd | Punching method for reinforcing member for elevater |
| JPH03243226A (en) * | 1990-02-22 | 1991-10-30 | Mitsubishi Motors Corp | Burring press and its manufacturing method |
| JPH04138824A (en) * | 1990-09-29 | 1992-05-13 | Yasuo Ono | Punch for burring |
| JPH0654423U (en) * | 1993-01-13 | 1994-07-26 | 日新電機株式会社 | Burring mold |
| CN1736650A (en) * | 2005-09-01 | 2006-02-22 | 上海交通大学 | Two-level electric resistance welding method for damping clad plate oil sump |
| JP2007090421A (en) * | 2005-09-30 | 2007-04-12 | Nissan Motor Co Ltd | Burring processing mold and processing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5475448A (en) * | 1977-11-26 | 1979-06-16 | Matsushita Refrigeration | Precoated plate |
-
2011
- 2011-05-10 JP JP2011104829A patent/JP5804765B2/en active Active
- 2011-05-12 CN CN201180024529.1A patent/CN102917832B/en not_active Expired - Fee Related
- 2011-05-12 WO PCT/JP2011/060912 patent/WO2011145506A1/en not_active Ceased
- 2011-05-12 AU AU2011256544A patent/AU2011256544B2/en not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137580A (en) * | 1983-12-26 | 1985-07-22 | Mazda Motor Corp | Method of welding nut to steel plate having insulating layer |
| JPH02280975A (en) * | 1989-04-19 | 1990-11-16 | Mitsubishi Electric Corp | Projection for resistance welding and projection welding method |
| JPH03106518A (en) * | 1989-09-20 | 1991-05-07 | Hitachi Ltd | Punching method for reinforcing member for elevater |
| JPH03243226A (en) * | 1990-02-22 | 1991-10-30 | Mitsubishi Motors Corp | Burring press and its manufacturing method |
| JPH04138824A (en) * | 1990-09-29 | 1992-05-13 | Yasuo Ono | Punch for burring |
| JPH0654423U (en) * | 1993-01-13 | 1994-07-26 | 日新電機株式会社 | Burring mold |
| CN1736650A (en) * | 2005-09-01 | 2006-02-22 | 上海交通大学 | Two-level electric resistance welding method for damping clad plate oil sump |
| JP2007090421A (en) * | 2005-09-30 | 2007-04-12 | Nissan Motor Co Ltd | Burring processing mold and processing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111201094A (en) * | 2017-10-13 | 2020-05-26 | 株式会社神户制钢所 | Knock-in method for penetrating element, element assembly, and member for welding |
| CN111201094B (en) * | 2017-10-13 | 2022-03-18 | 株式会社神户制钢所 | Method for driving penetration element, element assembly, and welding member |
| CN115502500A (en) * | 2022-09-13 | 2022-12-23 | 佛山华智新材料有限公司 | Aluminum product with multilayer structure and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102917832B (en) | 2016-01-27 |
| AU2011256544A1 (en) | 2012-12-06 |
| JP5804765B2 (en) | 2015-11-04 |
| JP2012000668A (en) | 2012-01-05 |
| AU2011256544B2 (en) | 2014-11-06 |
| WO2011145506A1 (en) | 2011-11-24 |
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