CN110480154A - The welding method of laser assembly solder plate - Google Patents
The welding method of laser assembly solder plate Download PDFInfo
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- CN110480154A CN110480154A CN201910610534.9A CN201910610534A CN110480154A CN 110480154 A CN110480154 A CN 110480154A CN 201910610534 A CN201910610534 A CN 201910610534A CN 110480154 A CN110480154 A CN 110480154A
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- steel plate
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- arc
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
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- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of welding methods of laser assembly solder plate, comprising the following steps: A, stamping and blanking: being first the first steel plate and the second steel plate by the first plate slab and the second plate slab punching；The both ends of a longitudinal side of the second steel plate are respectively punched a technical gaps again；B, jigsaw: the first steel plate and the second steel plate are mutually spliced into obtain welding side, and the technical gaps at the both ends of the first steel plate and the second steel plate is made to enclose two welding notches；C, laser welding: laser is first made to advance 0.5 millimeter in one end of the notch side of the first steel plate of welding notch along welding direction, the laser starting the arc starts, it carries out welding then along the welding side of the first steel plate and the second steel plate and forms weld seam, last laser receives arc when marching to 0.5 millimeter of the other end of another welding notch and the notch side away from the first steel plate and terminates welding.Compared with the prior art, the problem of both ends that the present invention can solve existing laser assembly solder plate welding seams are also easy to produce defect.
Description
Technical field
The present invention relates to field of automobile, the welding side of especially a kind of laser assembly solder plate for automobile manufacture
Method.
Background technique
Laser assembly solder plate is usually to be made of the steel plate of two kinds of pressure difference thickness by laser assembly solder, is now widely used for vapour
The production of the parts such as vehicle body-in-white front longitudinal beam, inner plate of car door, panoramic skylight.Weld seam two is found in the laser assembly solder plate for completing welding
The region at 0 to 5 millimeter of end easily generates defect, causes part in subsequent stamping cracking；To ensure that weld seam both ends defect does not occur
On part, the both ends of laser assembly solder plate welding seams need to be cut off, so that steel utilization ratio be caused to reduce；It there is now engineer
The defect of improvement laser assembly solder board ends weld seam is attempted using dynamic adjustment laser weld parameters, welding method is to make laser first
At starting the arc end after base material normal incidence, traveling a distance, make incident direction i.e. starting the arc end and the welding side of the laser
To in obtuse angle；Secondly the arc stage is being received, which advances after a distance, and the incident direction of laser is made namely to receive arc end and weldering
It is at an acute angle to connect direction.There are the following problems in process of production for this method: 1, the laser of preset parameter is generally used in industry
Welding method, this method allow the starting the arc and receive existing defects at arc；2, the method for dynamic adjustment laser welding incident angle is to contracting
Defect has certain effect at the short starting the arc and receipts arc, still has the wind to crack from fault location in subsequent punching press or vehicle traveling process
Danger.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of welding methods of laser assembly solder plate, to solve existing laser
The problem of both ends of welding plate welding seams are also easy to produce defect.
The technical proposal for solving the technical problem of the invention are as follows: a kind of welding method of laser assembly solder plate, laser are spelled
Welding plate is welded to connect by the first steel plate and the second steel plate by weld seam, and the thickness of first steel plate is greater than second steel plate
Thickness, it is characterised in that the following steps are included:
A, stamping and blanking: first by the first plate slab and the second plate slab punching for two transverse sides and two longitudinal sides
First steel plate and second steel plate；The both ends of a longitudinal side of second steel plate are respectively punched a work again
Skill notch, the technical gaps have surrounding edge in the arc of a longitudinal side connection of one end and second steel plate,
One end of the other end of surrounding edge and notch auxiliary side links in the arc, the other end of notch auxiliary side with it is described
One transverse sides of the second steel plate link, spare；
B, a longitudinal side of first steel plate and both ends punching jigsaw: there is into the vertical of second steel plate of technical gaps
Mutually splice to obtain welding side to side, and makes the longitudinal side of first steel plate and the longitudinal side both ends of second steel plate
Two technical gaps enclose two welding notches respectively；
The welding notch is enclosed by surrounding edge in notch outer width, notch side, the arc and notch auxiliary side；
Wherein, the notch side is located in the longitudinal side of first steel plate；
C, laser welding: first make laser in one end of the notch side of first steel plate of the welding notch along welding
Direction advance 0.5 millimeter, the laser starting the arc starts, then along the welding side of first steel plate and second steel plate into
Row welding forms the weld seam, and last laser marches to another welding notch and the notch side away from first steel plate
0.5 millimeter of the other end when receive arc terminate welding.
In the welding method technical solution of above-mentioned laser assembly solder plate, more specific technical solution, which may also is that, carries out step C
Laser welding when, laser beam be biased to first steel plate side.
Further: surrounding edge is arc-shaped in the arc, and the radius of surrounding edge is radius r in the arc；In institute's arc
Angle between the tangent line of surrounding edge and the weld seam is curved cut line angle θ, curved cut line angle θ=90 °.
Further: the size of the notch outer width should meet: 0.5 millimeter≤notch outer width≤5 millimeter；It is described to lack
The size of mouth auxiliary side should meet: 0≤notch auxiliary side≤4.5 millimeter.
By adopting the above-described technical solution, compared with prior art, the present invention has the following advantages: 1, due to
First steel plate of two kinds of pressure difference thickness and the both ends of the second steel plate are equipped with welding notch, when welding, welding of the laser in thick steel plate
The one end on side is after 0.5 millimeter of welding direction traveling, and the laser starting the arc starts, at this point, the molten iron of the fusing of welding side thick steel plate side
In weld seam starting the arc end angle of contingence θ apex self-assembling formation arc-shaped transition weld seam end face；Meanwhile laser is marched to away from the another of welding side
It receives arc when 0.5 millimeter of one end to terminate, but also the molten iron of the fusing of welding side thick steel plate side receives the vertex arc end angle of contingence θ in weld seam
Locate self-assembling formation arc-shaped transition weld seam end face；The presence of the two technical gaps can improve the starting the arc and receive at arc because molten iron supplements not
Stomata, crackle caused by foot, the defects of collapsing, arc-shaped transition weld seam end face can improve the weld seam starting the arc and receive at arc weld seam end face because
The problems such as stamping cracking caused by stress is concentrated or fatigue cracking, improves weld seam both ends dynamic and static mechanical properties, vertical before being promoted
The service life to structural behaviour and the demanding part of fatigue performance such as beam, floor side member；2, as weld seam both ends are dynamic and static
Mechanical property improves, and under certain design conditions, laser assembly solder plate stamping forming part weld seam both ends can be retained in part
On ontology, so that can carry out exempting from trimming to part after molding, is conducive to steel utilization ratio raising, reduces part and be produced into
This.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the partial enlarged view at the A of Fig. 1.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described:
Embodiment 1:
Laser assembly solder plate as described in Figure 1 passes through weld seam 3 the first steel plate 1 and the second steel plate 2 that are welded to connect, and the of the present embodiment
One cold-reduced sheet that steel plate 1 is 780DP, plate thickness is 2.2 millimeters, the second cold-reduced sheet that steel plate 2 is 590DP, plate thickness is 1.6 millimeters,
The thickness of first steel plate 1 is greater than the thickness of the second steel plate 2, and the first steel plate 1 is spelled by laser assembly solder at laser with the second steel plate 2
The welding method of welding plate the following steps are included:
A, stamping and blanking: first by the first plate slab and the second plate slab punching for two transverse sides and two longitudinal sides
The first steel plate 1 and the second steel plate 2, two transverse sides of the first steel plate 1 are transverse sides 1-1 and transverse sides 1- respectively
2, two transverse sides of the second steel plate 2 are transverse sides 2-1 and transverse sides 2-2 respectively；Again by one of the second steel plate 2
The both ends of longitudinal side are respectively punched a technical gaps, which has a longitudinal side of one end and the second steel plate 2
Surrounding edge d4 in the arc of connection, one end of the other end of surrounding edge d4 and notch auxiliary side d3 link in arc, notch secondary side
One transverse sides 2-1 of the other end of side d3 and the second steel plate 2 connection；The notch of another technical gaps of the second steel plate 2
Another transverse sides 2-2 of the other end and the second steel plate 2 that assist side links；The tangent line and weld seam of surrounding edge d4 in arc
Between angle be curved cut line angle θ, the curved cut line angle θ of the present embodiment is 90 °；The half of surrounding edge d4 in the arc of the present embodiment
Diameter r is 0.5 millimeter, and notch auxiliary side d3 and notch side d1 is set in parallel；The size of the notch side d1 of the present embodiment
It is 0.5 millimeter；The size of the notch outer width d2 of the present embodiment is 0.5 millimeter, and the size of notch outer width d2 is met: 0.5 millimeter
The requirement of≤notch outer width d2≤5 millimeter；The size of the notch auxiliary side d3 of the present embodiment is 0, which assists side d3
Size should meet: 0≤notch assist side d3≤4.5 millimeter requirement, it is spare；
B, a longitudinal side of the first steel plate 1 and both ends punching jigsaw: are had to the longitudinal side of the second steel plate 2 of technical gaps
Mutually splice to obtain welding side, and makes two technical gaps of the longitudinal side of the first steel plate 1 and the longitudinal side both ends of the second steel plate 2
Two welding notches are enclosed respectively；
Welding notch is enclosed by surrounding edge d4 in notch outer width d2, notch side d1, arc and notch auxiliary side d3；Its
In, notch side d1 is located in the longitudinal side of the first steel plate 1；The size of the notch side d1 of the present embodiment is 0.5 millimeter, arc
Shape angle of contingence θ is 90 °, and the radius of surrounding edge d4 is 0.5 millimeter in arc, and it is 0 that notch, which assists the size of side d3, as shown in Figure 2；
C, laser welding: laser is first made to advance in one end of the notch side d1 of the first steel plate 1 of welding notch along welding direction
0.5 millimeter, the laser starting the arc starts, then along the first steel plate 1 and the second steel plate 2 welding side carry out welding form weld seam 3, into
When row laser welding, laser beam is biased to the side of the first steel plate 1 namely thick steel plate；Last laser marches to another welding
Notch and 0.5 millimeter of the other end of d1 away from the notch side of the first steel plate 1 when, receive arc and terminate welding.
Embodiment 2:
Laser assembly solder plate as described in Figure 1 passes through weld seam 3 the first steel plate 1 and the second steel plate 2 that are welded to connect, and the of the present embodiment
One cold-reduced sheet that steel plate 1 is 780DP, plate thickness is 2.2 millimeters, the second cold-reduced sheet that steel plate 2 is 590DP, plate thickness is 1.6 millimeters,
The thickness of first steel plate 1 is greater than the thickness of the second steel plate 2, and the first steel plate 1 is spelled by laser assembly solder at laser with the second steel plate 2
The welding method of welding plate the following steps are included:
A, stamping and blanking: first by the first plate slab and the second plate slab punching for two transverse sides and two longitudinal sides
The first steel plate 1 and the second steel plate 2, two transverse sides of the first steel plate 1 are transverse sides 1-1 and transverse sides 1- respectively
2, two transverse sides of the second steel plate 2 are transverse sides 2-1 and transverse sides 2-2 respectively；Again by one of the second steel plate 2
The both ends of longitudinal side are respectively punched a technical gaps, which has a longitudinal side of one end and the second steel plate 2
Surrounding edge d4 in the arc of connection, one end of the other end of surrounding edge d4 and notch auxiliary side d3 link in arc, notch secondary side
One transverse sides 2-1 of the other end of side d3 and the second steel plate 2 connection；The notch of another technical gaps of the second steel plate 2
Another transverse sides 2-2 of the other end and the second steel plate 2 that assist side links；The tangent line and weld seam of surrounding edge d4 in arc
Between angle be curved cut line angle θ, the curved cut line angle θ of the present embodiment is 90 °；The half of surrounding edge d4 in the arc of the present embodiment
Diameter r is 5 millimeters；The size of the notch side d1 of the present embodiment is 5 millimeters；The size of the notch outer width d2 of the present embodiment is 5 millis
Rice, the size of notch outer width d2 are met: the requirement of 0.5 millimeter≤notch outer width d2≤5 millimeter, the notch auxiliary of the present embodiment
The size of side d3 is 0, and the size of notch auxiliary side d3 should be met: be wanted 0≤notch auxiliary side d3≤4.5 millimeter
It asks, it is spare；
B, a longitudinal side of the first steel plate 1 and both ends punching jigsaw: are had to the longitudinal side of the second steel plate 2 of technical gaps
Mutually splice to obtain welding side, and makes two technical gaps of the longitudinal side of the first steel plate 1 and the longitudinal side both ends of the second steel plate 2
Two welding notches are enclosed respectively；
Welding notch is enclosed by surrounding edge d4 in notch outer width d2, notch side d1, arc and notch auxiliary side d3；Its
In, notch side d1 is located in the longitudinal side of the first steel plate 1；The size of the notch side d1 of the present embodiment is 5 millimeters, arc
Angle of contingence θ is 90 °, and the radius r of surrounding edge d4 is 5 millimeters in arc, and it is 0 that notch, which assists the size of side d3, as shown in Figure 2；
C, laser welding: laser is first made to advance in one end of the notch side d1 of the first steel plate 1 of welding notch along welding direction
0.5 millimeter, the laser starting the arc starts, then along the first steel plate 1 and the second steel plate 2 welding side carry out welding form weld seam 3, into
When row laser welding, laser beam is biased to the side of the first steel plate 1 namely thick steel plate；Last laser marches to another welding
Notch and 0.5 millimeter of the other end of d1 away from the notch side of the first steel plate 1 when, receive arc and terminate welding.
Embodiment 3:
Laser assembly solder plate as described in Figure 1 passes through weld seam 3 the first steel plate 1 and the second steel plate 2 that are welded to connect, and the of the present embodiment
One cold-reduced sheet that steel plate 1 is 780DP, plate thickness is 2.2 millimeters, the second cold-reduced sheet that steel plate 2 is 590DP, plate thickness is 1.6 millimeters,
The thickness of first steel plate 1 is greater than the thickness of the second steel plate 2, and the first steel plate 1 is spelled by laser assembly solder at laser with the second steel plate 2
The welding method of welding plate the following steps are included:
A, stamping and blanking: first by the first plate slab and the second plate slab punching for two transverse sides and two longitudinal sides
The first steel plate 1 and the second steel plate 2, two transverse sides of the first steel plate 1 are transverse sides 1-1 and transverse sides 1- respectively
2, two transverse sides of the second steel plate 2 are transverse sides 2-1 and transverse sides 2-2 respectively；Again by one of the second steel plate 2
The both ends of longitudinal side are respectively punched a technical gaps, which has a longitudinal side of one end and the second steel plate 2
Surrounding edge d4 in the arc of connection, one end of the other end of surrounding edge d4 and notch auxiliary side d3 link in arc, notch secondary side
One transverse sides 2-1 of the other end of side d3 and the second steel plate 2 connection；The notch of another technical gaps of the second steel plate 2
Another transverse sides 2-2 of the other end and the second steel plate 2 that assist side links；The tangent line and weld seam of surrounding edge d4 in arc
Between angle be curved cut line angle θ, the curved cut line angle θ of the present embodiment is 90 °；Surrounding edge d4 in the arc of the present embodiment
Radius r be 0.5 millimeter, notch auxiliary side d3 and notch side d1 be set in parallel；The notch side d1's of the present embodiment
Having a size of 5 millimeters；The size of the notch outer width d2 of the present embodiment is 0.5 millimeter, and the size of notch outer width d2 is met: 0.5 milli
The requirement of rice≤notch outer width d2≤5 millimeter；The size of the notch auxiliary side d3 of the present embodiment is 4.5 millimeters, and the notch is auxiliary
Helping the size of side d3 should meet: 0≤notch assists the requirement of side d3≤4.5 millimeter, spare；
B, a longitudinal side of the first steel plate 1 and both ends punching jigsaw: are had to the longitudinal side of the second steel plate 2 of technical gaps
Mutually splice to obtain welding side, and makes two technical gaps of the longitudinal side of the first steel plate 1 and the longitudinal side both ends of the second steel plate 2
Two welding notches are enclosed respectively；
Welding notch is enclosed by surrounding edge d4 in notch outer width d2, notch side d1, arc and notch auxiliary side d3；Its
In, notch side d1 is located in the longitudinal side of the first steel plate 1；The size of the notch side d1 of the present embodiment is 5 millimeters, notch
The size of outer width d2 is 0.5 millimeter, and the radius r of surrounding edge d4 is 0.5 millimeter in arc, and it is 4.5 that notch, which assists the size of side d3,
Millimeter, as shown in Figure 2；
C, laser welding: laser is first made to advance in one end of the notch side d1 of the first steel plate 1 of welding notch along welding direction
0.5 millimeter, the laser starting the arc starts, then along the first steel plate 1 and the second steel plate 2 welding side carry out welding form weld seam 3, into
When row laser welding, laser beam is biased to the side of the first steel plate 1 namely thick steel plate；Last laser marches to another welding
Notch and 0.5 millimeter of the other end of d1 away from the notch side of the first steel plate 1 when, receive arc and terminate welding.
Embodiment 4:
Laser assembly solder plate as described in Figure 1 passes through weld seam 3 the first steel plate 1 and the second steel plate 2 that are welded to connect, and the of the present embodiment
One cold-reduced sheet that steel plate 1 is 780DP, plate thickness is 2.2 millimeters, the second cold-reduced sheet that steel plate 2 is 590DP, plate thickness is 1.6 millimeters,
The thickness of first steel plate 1 is greater than the thickness of the second steel plate 2, and the first steel plate 1 is spelled by laser assembly solder at laser with the second steel plate 2
The welding method of welding plate the following steps are included:
A, stamping and blanking: first by the first plate slab and the second plate slab punching for two transverse sides and two longitudinal sides
The first steel plate 1 and the second steel plate 2, two transverse sides of the first steel plate 1 are transverse sides 1-1 and transverse sides 1- respectively
2, two transverse sides of the second steel plate 2 are transverse sides 2-1 and transverse sides 2-2 respectively；Again by one of the second steel plate 2
The both ends of longitudinal side are respectively punched a technical gaps, which has a longitudinal side of one end and the second steel plate 2
Surrounding edge d4 in the arc of connection, one end of the other end of surrounding edge d4 and notch auxiliary side d3 link in arc, notch secondary side
One transverse sides 2-1 of the other end of side d3 and the second steel plate 2 connection；The notch of another technical gaps of the second steel plate 2
Another transverse sides 2-2 of the other end and the second steel plate 2 that assist side links；Surrounding edge d4 in the arc of the present embodiment
Radius is 5 millimeters；The size of the notch side d1 of the present embodiment is 9.5 millimeters；The size of the notch outer width d2 of the present embodiment is 5
Millimeter, the size of notch outer width d2 are met: the requirement of 0.5 millimeter≤notch outer width d2≤5 millimeter；The notch of the present embodiment is auxiliary
The size for helping side d3 is 4.5, and the size of notch auxiliary side d3 should be met: 0≤notch assists side d3≤4.5 millimeter
Requirement, it is spare；
B, a longitudinal side of the first steel plate 1 and both ends punching jigsaw: are had to the longitudinal side of the second steel plate 2 of technical gaps
Mutually splice to obtain welding side, and makes two technical gaps of the longitudinal side of the first steel plate 1 and the longitudinal side both ends of the second steel plate 2
Two welding notches are enclosed respectively；
Welding notch is enclosed by surrounding edge d4 in notch outer width d2, notch side d1, arc and notch auxiliary side d3；Its
In, notch side d1 is located in the longitudinal side of the first steel plate 1；The size of the notch side d1 of the present embodiment is 9.5 millimeters, is lacked
The size of mouth outer width d2 is 5 millimeters, and the radius of surrounding edge d4 is 5 millimeters in arc, and it is 4.5 that notch, which assists the size of side d3, such as
Shown in Fig. 2；
C, laser welding: laser is first made to advance in one end of the notch side d1 of the first steel plate 1 of welding notch along welding direction
0.5 millimeter, the laser starting the arc starts, then along the first steel plate 1 and the second steel plate 2 welding side carry out welding form weld seam 3, into
When row laser welding, laser beam is biased to the side of the first steel plate 1 namely thick steel plate；Last laser marches to another welding
Notch and 0.5 millimeter of the other end of d1 away from the notch side of the first steel plate 1 when, receive arc and terminate welding.
Due to being equipped with welding notch in the first steel plate of two kinds of pressure difference thickness and the both ends of the second steel plate, when welding, laser
The first steel plate 1 of welding notch notch side d1 one end along welding direction advance 0.5 millimeter after, the laser starting the arc starts,
At this point, the molten iron of the fusing of welding side thick steel plate side forms an oval starting the arc welding block at the starting the arc；Meanwhile laser line
It proceeds to another welding notch and 0.5 millimeter of the other end of d1 away from the notch side of the first steel plate 1 when receives arc and terminates, but also spelling
The molten iron of the fusing of weld ddge thick steel plate side forms an oval receipts arc welding block at the starting the arc；The two welding blocks can change
Metallic vapour aperture form at the change starting the arc and receipts arc makes first caused by improving because of molten iron supplement deficiency the defects of stomata, crackle
Steel plate and the second steel plate butt welding side both ends will not generate defect far from the region for being 0 to 5 millimeter end L.
Claims (4)
1. a kind of welding method of laser assembly solder plate, laser assembly solder plate, which is welded by the first steel plate and the second steel plate by weld seam, to be connected
It connects, the thickness of first steel plate is greater than the thickness of second steel plate, it is characterised in that the following steps are included:
A, stamping and blanking: first by the first plate slab and the second plate slab punching for two transverse sides and two longitudinal sides
First steel plate and second steel plate；The both ends of a longitudinal side of second steel plate are respectively punched a work again
Skill notch, the technical gaps have surrounding edge in the arc of a longitudinal side connection of one end and second steel plate
(d4), one end of the other end of surrounding edge (d4) and notch auxiliary side (d3) links in the arc, and the notch assists side
(d3) transverse sides of the other end and second steel plate link, spare；
B, a longitudinal side of first steel plate and both ends punching jigsaw: there is into the vertical of second steel plate of technical gaps
Mutually splice to obtain welding side to side, and makes the longitudinal side of first steel plate and the longitudinal side both ends of second steel plate
Two technical gaps enclose two welding notches respectively；
The welding notch is assisted by surrounding edge (d4) in notch outer width (d2), notch side (d1), the arc and the notch
(d3) is enclosed for side；Wherein, the notch side (d1) is located in the longitudinal side of first steel plate；
C, laser welding: first make laser on one end edge of the notch side (d1) of first steel plate of the welding notch
Welding direction is advanced 0.5 millimeter, and the laser starting the arc starts, then along the welding of first steel plate and second steel plate
While carrying out welding forms the weld seam, last laser marches to another welding notch and the notch away from first steel plate
Arc is received at 0.5 millimeter of the other end of side (d1) terminates welding.
2. the welding method of laser assembly solder plate according to claim 1, it is characterised in that: carry out the laser welding of step C
When, laser beam is biased to first steel plate side.
3. the welding method of laser assembly solder plate according to claim 1 or 2, it is characterised in that: surrounding edge in the arc
(d4) to be arc-shaped, the radius of surrounding edge (d4) is radius r in the arc；The tangent line of surrounding edge (d4) and the weld seam in institute's arc
Between angle be curved cut line angle θ, curved cut line angle θ=90 °.
4. the welding method of laser assembly solder plate according to claim 3, it is characterised in that: the ruler of the notch outer width (d2)
It is very little to meet: 0.5 millimeter≤the notch outer width (d2)≤5 millimeter；The size of notch auxiliary side (d3) should meet: 0
≤ notch auxiliary side (d3)≤4.5 millimeter.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111716067A (en) * | 2020-05-14 | 2020-09-29 | 广汽新能源汽车有限公司 | Auxiliary vehicle plate manufacturing process, auxiliary vehicle frame manufacturing process and auxiliary vehicle frame |
| CN112589271A (en) * | 2020-11-10 | 2021-04-02 | 东风汽车集团有限公司 | Laser tailor-welded blank, tailor-welded stamped workpiece and laser tailor-welding method |
| CN113210864A (en) * | 2021-05-28 | 2021-08-06 | 东风柳州汽车有限公司 | Laser tailor-welding blank for reinforcing frame of automobile skylight and manufacturing method |
| WO2023173984A1 (en) * | 2022-03-17 | 2023-09-21 | 大连富地重工机械制造有限公司 | Multi-weld seam welded pipe production line |
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Cited By (5)
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| CN111716067A (en) * | 2020-05-14 | 2020-09-29 | 广汽新能源汽车有限公司 | Auxiliary vehicle plate manufacturing process, auxiliary vehicle frame manufacturing process and auxiliary vehicle frame |
| CN112589271A (en) * | 2020-11-10 | 2021-04-02 | 东风汽车集团有限公司 | Laser tailor-welded blank, tailor-welded stamped workpiece and laser tailor-welding method |
| CN112589271B (en) * | 2020-11-10 | 2022-01-11 | 东风汽车集团有限公司 | Laser tailor-welded blank, tailor-welded stamped workpiece and laser tailor-welding method |
| CN113210864A (en) * | 2021-05-28 | 2021-08-06 | 东风柳州汽车有限公司 | Laser tailor-welding blank for reinforcing frame of automobile skylight and manufacturing method |
| WO2023173984A1 (en) * | 2022-03-17 | 2023-09-21 | 大连富地重工机械制造有限公司 | Multi-weld seam welded pipe production line |
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