JP2011011215A - Welding method of metallic sheet member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the welding method of a metallic sheet member for preventing any molten pool from being blown off with gas caused by evaporation of adhesion layer by arc heat when performing arc welding of predetermined parts of two metallic sheet members which are adhered and joined to each other.SOLUTION: When a second metallic sheet member 102 which is a member for reinforcing a first metallic sheet member and the member different from the first metallic sheet member 101 is adhered to the first metallic sheet member 101 with a resin-based adhesive, after the adhesion, an adhesive gasification preventive metallic sheet member 104 is arranged at a part to which the two metallic sheet members 101, 102 are arc-welded, the two metallic sheet members 101, 102 are adhered to each other with the resin-based adhesive 103 in a state that the adhesive gasification preventive metallic sheet member 104 is held therebetween. Then, the metallic sheet members 101, 102 are arc-welded together with the adhesive gasification preventive metallic sheet member 104.

Description

  The present invention relates to a method for joining metal plate members in which two metal plate members are joined together using a resin adhesive and arc welding.

  In joining of metal plate members in large-sized products such as automobile vehicles and railway vehicles, two different kinds of metal plate members are joined together using an adhesive and welding. FIG. 6 is a cross-sectional view for explaining the prior art.

  In FIG. 6, 51 is an aluminum alloy plate and is a flat plate-shaped first metal plate member. 52 is smaller than the first metal plate member 51 and is a reinforcing member for the first metal plate member 51. The second metal plate member is made of a steel plate and is flat and rectangular. As shown in FIG. 6A, by applying a resin-based adhesive on the first metal plate member 51 and further superposing the second metal plate member 52 thereon, two different kinds of materials are formed by the adhesive layer 53. The metal plate members 51 and 52 are adhesively bonded.

  For the purpose of increasing the bonding strength (peeling strength) of the metal plate members 51 and 52, for example, the opposing long side ends of the second metal plate member 52 and the first metal plate member 51 are bonded to the adhesively bonded members. When it is going to arc welding joining, as shown in FIG.6 (b), the adhesion layer 53 part of the 2nd metal plate member 52 vicinity of the said long side end evaporates with arc heat, and is gasified. For this reason, the molten pool was blown away by the gas generated by the evaporation of the adhesive layer 53 due to the arc heat, so that the weld bead was not formed well, and the metal plate members 51 and 52 could not be well welded together.

JP 2007-275960 A

  Therefore, the subject of the present invention is to join two metal plate members together using a resin-based adhesive and arc welding, and when arc welding the predetermined parts of the two metal plate members that are adhesively bonded, It is an object of the present invention to provide a method for joining metal plate members that can form a good weld bead without causing a molten pool to be blown away by a gas caused by evaporation of an adhesive layer by arc heat.

  In order to solve the above problems, the present invention takes the following technical means.

  According to the first aspect of the present invention, a second metal plate member different from the first metal plate member is joined to the first metal plate member with a resin adhesive. In doing so, the adhesive gasification preventing metal plate member is disposed at the site where the two metal plate members are to be arc welded after the adhesive joining, and the adhesive gasification preventing metal plate member is sandwiched between them. A metal plate member joining method characterized in that the two metal plate members are joined by a resin adhesive, and then the two metal plate members are joined by arc welding (the metal plate according to the first invention). Member joining method).

  According to a second aspect of the present invention, there is provided a second metal that is a member for reinforcing the first metal plate member and has a flat plate shape different from the first metal plate member on the first metal plate member having a flat plate shape. When the plate member is joined with a resin-based adhesive with the positions of at least one side ends of the two metal plate members aligned, the metal plate for preventing gasification of the adhesive along the one side end on the first metal plate member An adhesive bonded metal plate member is obtained by arranging the members and bonding the two metal plate members with a resin adhesive in a state where the adhesive gasification preventing metal plate member is sandwiched therebetween, and the adhesive bonded metal plate Joining a metal plate member, characterized in that the member and an adhesively bonded metal plate member having the same structure are joined by arc welding in a state in which the end portions on the metal plate member side for preventing adhesive gasification are abutted with each other It is a method (joining method of the metal plate member by 2nd invention).

  The invention of claim 3 is a member for reinforcing the first metal plate member on the lower butted metal plate member obtained by abutting two first metal plate members having a flat plate shape, and the first metal plate. An upper butt metal plate member obtained by abutting two second metal plate members having different flat plate shapes different from the members so that their butt positions extend in line with the butt position of the lower butt metal plate member When joining with a resin-based adhesive, an adhesive gasification preventing metal plate member is disposed along the butt portion of the lower butt metal plate member, and the adhesive gasification preventing metal plate member is sandwiched therebetween. The two butt metal plate members are joined with a resin adhesive in a state, and then the butt portions of the butt metal plate members are joined by arc welding, respectively. A method (method of bonding the metal plate member according to a third invention).

  Invention of Claim 4 is a joining method of the metal plate member as described in any one of Claims 1-3. WHEREIN: A said 1st metal plate member is formed with an aluminum alloy plate, and a said 2nd metal plate member is a steel plate. It is characterized by being formed by.

  According to the joining method of the metal plate member by invention of Claims 1-4, in joining two metal plate members together using a resin-type adhesive agent and arc welding, two metal plate members adhesively joined are used. Phenomenon in which the molten pool is blown away by the gas generated by the evaporation of the adhesive layer due to the arc heat because the metal plate member for preventing gasification of the adhesive is disposed at the predetermined portion when arc welding the predetermined portion. Thus, a good weld bead can be formed, and the two metal plate members that are adhesively joined can be favorably arc-welded without causing a weld failure due to a bead failure.

It is sectional drawing for demonstrating the joining method by one Embodiment of 1st invention. It is sectional drawing for demonstrating the joining method by another embodiment of 1st invention. It is sectional drawing for demonstrating the joining method by another embodiment of 1st invention. It is sectional drawing for demonstrating the joining method by one Embodiment of 2nd invention. It is sectional drawing for demonstrating the joining method by one Embodiment of 3rd invention. It is sectional drawing for demonstrating a prior art.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a cross-sectional view for explaining a joining method according to an embodiment of the first invention.

In FIG. 1, reference numeral 101 denotes a single flat plate-shaped first metal plate member, and reference numeral 102 denotes a member for reinforcing the first metal plate member 101, which is a different type of second metal different from the first metal plate member 101. It is a plate member. In this embodiment, the first metal plate member 101 is made of an aluminum alloy plate (JIS 7000 series aluminum alloy plate) having a thickness in the range of 0.6 to 8 mm. The second metal plate member 102 is made of a steel plate (120 kg class (1177 MPa class) high-tensile steel plate) having a thickness in the range of 0.6 to 6 mm, and has a smaller size and a rectangular shape than the first metal plate member 101. There is no.

  In joining the two metal plate members 101 and 102 together using the resin adhesive and arc welding, first, when joining the second metal plate member 102 to the first metal plate member 101 with the resin adhesive, Prior to the application of the resin-based adhesive, the first metal plate member 101 is a portion of the second metal plate member 102 that is a portion where the two metal plate members 101 and 102 are to be arc-welded after adhesive bonding. The adhesive gasification preventing metal plate members 104, 104 extending narrowly and elongatedly are disposed at portions corresponding to the long side ends extending in the depth direction in the drawing.

  Then, a resin-based adhesive is applied over the entire region between the adhesive gasification preventing metal plate members 104, 104 on the first metal plate member 101, and the second metal plate member 102 is overlaid thereon. Thus, the metal plate members 101 and 102 are bonded and bonded by the adhesive layer 103 with the adhesive gasification preventing metal plate members 104 and 104 sandwiched therebetween. For example, an epoxy resin adhesive is used as the resin adhesive.

  Here, in this embodiment, the adhesive gasification preventing metal plate member 104 is made of the same kind of aluminum alloy plate as the first metal plate member 101, and has a thickness of 0.4 to 2 mm and a width of 5 to 45 mm. Is.

  Next, the two metal plate members 101 and 102 are welded together by arc welding together with the adhesive gasification preventing metal plate member 104. At the time of this arc welding joining, the metal plate members 104, 104 for preventing the adhesive gasification are arranged at the locations to be joined by arc welding, so that gasification due to evaporation of the adhesive layer 103 does not occur due to arc heat. The phenomenon that the molten pool is blown away by the gas due to the evaporation of the adhesive layer 103 does not occur, a good weld bead can be formed, and the two metal plate members 101 and 102 that are adhesively bonded are welded poorly due to the bead failure. It is possible to achieve good arc welding joining without causing any problems.

  Examples of the arc welding method used for this arc welding joining include MIG welding, MAG welding, and TIG welding using a filler wire. For example, welding conditions in the case of MIG welding are welding current: 90 A, welding voltage: 17.5 V, welding speed: 50 cm / min, shielding gas: Ar 25 liters / min, and welding advance angle: 5 °.

  FIG. 2 is a cross-sectional view for explaining a joining method according to another embodiment of the first invention.

  In FIG. 2, reference numeral 201 denotes a first metal plate member having a flat plate shape. Reference numeral 202 denotes a member for reinforcing the first metal plate member 201, which is a second metal plate member having a flat plate shape, and has the same size as the first metal plate member 201. The material and thickness of the first metal plate member 201 are the same as those of the first metal plate member 101 in FIG. The material and thickness of the second metal plate member 202 are the same as those of the second metal plate member 102 in FIG.

In joining the two metal plate members 201 and 202 together using the resin adhesive and arc welding, first, when joining the second metal plate member 202 to the first metal plate member 201 with the resin adhesive, In the first metal plate member 201, the two metal plate members 201 and 202 are parts to be arc-welded after adhesive bonding,
Adhesive gasification preventing metal plate members 204, 204 extending narrowly and elongatedly are disposed at both ends of the first metal plate member 201 extending in the depth direction in the drawing. The material, thickness and width of the adhesive gasification preventing metal plate members 204, 204 are the same as those of the adhesive gasification preventing metal plate member 104 in FIG.

  Next, a resin adhesive is applied over the entire region between the adhesive gasification preventing metal plate members 204, 204 on the first metal plate member 201, and the second metal plate member 202 is overlaid thereon. Thus, the metal plate members 201 and 202 are bonded and bonded by the adhesive layer 203 with the adhesive gasification preventing metal plate members 204 and 204 sandwiched therebetween.

  Next, the metal plate members 201 and 202 together with the adhesive gasification preventing metal plate member 204 are welded together by arc welding, for example, MIG welding. In this arc welding joining, since the metal plate members 204, 204 for preventing gasification of the adhesive are disposed at the locations to be joined by arc welding, gasification due to evaporation of the adhesive layer 203 does not occur due to arc heat. The phenomenon that the molten pool is blown away by the gas due to the evaporation of the adhesive layer 203 does not occur, a good weld bead can be formed, and the two metal plate members 201 and 202 that are adhesively bonded are welded poorly due to the defective bead. It is possible to achieve good arc welding joining without causing any problems.

  FIG. 3 is a cross-sectional view for explaining a joining method according to another embodiment of the first invention.

  In FIG. 3, reference numeral 301 denotes a first metal plate member. The first metal plate member 301 is a metal plate member formed by welding and joining a standing plate 301b extending vertically in a vertical direction to a flat plate-shaped lower plate 301a. 302 is a member for reinforcing the first metal plate member 301, and is a second metal plate member having a flat plate shape. The material and thickness of the lower plate 301a and the upright plate 301b constituting the first metal plate member 301 are the same as those of the first metal plate member 101 in FIG. The material and thickness of the second metal plate member 302 are the same as those of the second metal plate member 102 in FIG.

  In joining the two metal plate members 301 and 302 using the resin adhesive and arc welding together, first, when joining the second metal plate member 302 to the first metal plate member 301 with the resin adhesive, In the first metal plate member 301, a portion corresponding to the lower end extending in the depth direction in the drawing of the second metal plate member 302, which is a portion where the two metal plate members 301 and 302 are to be arc-welded after adhesive bonding. Further, an adhesive gasification preventing metal plate member 304 that is narrow and elongated is disposed. The material, thickness, and width of the adhesive gasification preventing metal plate member 304 are the same as those of the adhesive gasification preventing metal plate member 104 in FIG.

  Next, a resin adhesive is applied over the entire area of the first metal plate member 301 except for the adhesive gasification preventing metal plate member 304 on the standing plate 301b, and the second metal plate member 302 is overlaid thereon. Thus, the metal plate members 301 and 302 are bonded and bonded by the adhesive layer 303 with the adhesive gasification preventing metal plate member 304 interposed therebetween.

Next, the corner portions of the lower plate 301a and the second metal plate member 302 of the first metal plate member 301 are welded together by arc welding, for example, MIG welding, along the adhesive gasification preventing metal plate member 304. . At the time of this arc welding joining, since the metal plate member 304 for preventing gasification of the adhesive is disposed at a place where arc welding joining is to be performed, gasification due to evaporation of the adhesive layer 303 does not occur due to arc heat, and adhesion There is a phenomenon in the absence of the adhesive gasification preventing metal plate member 304 that the molten pool is blown away by the gas generated by layer evaporation being ejected through the gap between the overlapping portions of the lower plate 301a and the second metal plate member 302. A good weld bead can be formed without any occurrence, and the two metal plate members 301 and 302 that are adhesively joined can be joined together favorably by arc welding without causing a weld failure due to a bead failure.

  FIG. 4 is a cross-sectional view for explaining a joining method according to an embodiment of the second invention.

  In FIG. 4, reference numeral 411 denotes a first metal plate member having a flat plate shape. Reference numeral 412 denotes a member for reinforcing the first metal plate member 411, which is a second metal plate member having a flat plate shape, and has the same size as the first metal plate member 411. The material and thickness of the first metal plate member 411 are the same as those of the first metal plate member 101 in FIG. The material and thickness of the second metal plate member 412 are the same as those of the second metal plate member 102 in FIG.

  An adhesive gasification preventing metal plate member 414 that is narrow and elongated is disposed at one end extending in the depth direction in the drawing on the first metal plate member 411. Next, a resin-based adhesive is applied over the entire area of the first metal plate member 411 except the adhesive gasification preventing metal plate member 414, and the second metal plate member 412 is overlaid thereon. The first adhesive bonded metal plate member 410 is formed by bonding the metal plate members 411 and 412 with the adhesive layer 413 with the adhesive gasification preventing metal plate member 414 sandwiched therebetween. The material, thickness and width of the adhesive gasification preventing metal plate member 414 are the same as those of the adhesive gasification preventing metal plate member 104 in FIG.

  Similarly to the first adhesive bonded metal plate member 410, the first metal plate member 421 and the second metal plate member 422 are formed by the adhesive layer 423 with the adhesive gasification preventing metal plate member 424 sandwiched therebetween. A second adhesive-bonded metal plate member 420 is formed by bonding.

  Next, the two adhesive-bonded metal plate members 410 and 420 are in contact with each other with the second metal plate members 412 and 422 in contact with each other at the ends of the adhesive gasification-preventing metal plate members. A welded joint is made by arc welding, for example, MIG welding along the part. At the time of this arc welding joining, since the metal plate members 414 and 424 for preventing gasification of the adhesive are disposed at the locations to be joined by arc welding, gasification occurs due to evaporation of the adhesive layers 413 and 423 due to arc heat. When there is no metal plate members 414 and 424 for preventing gasification of the adhesive gas, in which the molten pool is blown away by the gas due to evaporation of the adhesive layer being ejected through the gap between the butted portions of the second metal plate members 412 and 422 Thus, a good weld bead can be formed. Then, the members are reversed and similarly, the first metal plate members 411 and 421 are welded together well without causing a bead defect along the butted portion by arc welding.

  FIG. 5 is a cross-sectional view for explaining a joining method according to an embodiment of the third invention.

  In FIG. 5, 511 is a lower butt metal plate member. The lower butted metal plate member 511 is a member formed by butting two first metal plate members 511a and 511b having a flat plate shape. The materials and thicknesses of the first metal plate members 511a and 511b are the same as those of the first metal plate member 101 in FIG.

  An adhesive gasification preventing metal plate member 514 extending narrowly and elongatedly is disposed at the butting portion extending in the depth direction in the drawing on the lower butting metal plate member 511. The material, thickness and width of the adhesive gasification preventing metal plate member 514 are the same as those of the adhesive gasification preventing metal plate member 104 in FIG. Next, a resin-based adhesive is applied over the entire region except the adhesive gasification preventing metal plate member 514 on the lower butt metal plate member 511, and the upper butt metal plate member 512 is overlaid thereon. Thus, the butt metal plate members 511 and 512 are bonded and bonded by the adhesive layers 513 and 513 with the adhesive gasification preventing metal plate member 514 interposed therebetween.

  The upper butted metal plate member 512 is a member for reinforcing the lower butted metal plate member 511, and is a member formed by butting two second metal plate members 512a and 512b having a flat plate shape. The materials and thicknesses of the second metal plate members 512a and 512b are the same as those of the second metal plate member 102 in FIG.

  Next, the second metal plate members 512a and 512b of the upper butt metal plate member 512 are welded together by arc welding, for example, MIG welding, along the butt portion. At the time of this arc welding joining, since the metal plate member 514 for preventing gasification of the adhesive is disposed at a location to be joined by arc welding, gasification may occur due to evaporation of the adhesive layers 513 and 513 due to arc heat. However, there is no phenomenon in which there is no metal plate member 514 for preventing the gasification of the adhesive, in which the molten pool is blown away by the gas generated by evaporation of the adhesive layer being ejected through the gap between the butted portions of the second metal plate members 512a and 512b. It does not happen and a good weld bead can be formed. Then, the members are reversed and similarly, the first metal plate members 511a and 511b are welded together well without causing a bead defect by arc welding along the butted portion.

DESCRIPTION OF SYMBOLS 101 ... 1st metal plate member 102 ... 2nd metal plate member 103 ... Adhesion layer 104 ... Metal plate member for adhesive gasification prevention 201 ... 1st metal plate member 202 ... 2nd metal plate member 203 ... Adhesion layer 204 ... Adhesion Metal plate member for preventing gasification of gas 301: First metal plate member 301a: Lower plate 301b: Standing plate 302: Second metal plate member 303 ... Adhesive layer 304 ... Metal plate member for preventing adhesive gasification 410: First adhesion Joined metal plate member 411 ... first metal plate member 412 ... second metal plate member 413 ... adhesive layer 414 ... metal plate member for preventing adhesive gasification 420 ... second adhesive joined metal plate member 421 ... first metal plate member 422 ... 2nd metal plate member 423 ... Adhesive layer 424 ... Metal plate member for preventing adhesive gasification 511 ... Lower butted metal plate members 511a, 511b ... 1st metal plate member 513 ... Adhesive layer 514 ... Contact Containing gas-prevention metal plate 512 ... upper butt metal plate 512a, 512b ... second metal plate member

Claims (4)

  The first metal plate member is a member for reinforcing the first metal plate member and is bonded to the second metal plate member of a different type different from the first metal plate member with a resin adhesive. An adhesive gasification preventing metal plate member is disposed at a site where two metal plate members are to be arc-welded, and the two metal plate members are sandwiched between the adhesive gasification preventing metal plate members. Joining with a resin adhesive, and then joining the two metal plate members by arc welding.   On the first metal plate member having a flat plate shape, a second metal plate member which is a member for reinforcing the first metal plate member and having a different flat plate shape from the first metal plate member is disposed on the two metal plates. At the time of joining at least one side end of the plate member with a resin adhesive, an adhesive gasification preventing metal plate member is disposed along the one side end on the first metal plate member, and the bonding is performed. An adhesive bonded metal plate member obtained by bonding the two metal plate members with a resin-based adhesive in a state where the metal plate member for preventing agent gasification is sandwiched therebetween has the same structure as the adhesive bonded metal plate member A method for joining metal plate members, characterized in that an adhesively joined metal plate member is joined by arc welding in a state in which ends on the metal plate member side for preventing adhesive gasification are brought into contact with each other.   On a lower butted metal plate member obtained by abutting two first metal plate members having a flat plate shape, a different flat plate different from the first metal plate member is a member for reinforcing the first metal plate member. Two upper metal plate members that are joined together so that their butting positions extend so that their butting positions coincide with the butting position of the lower butting metal plate member are joined with a resin adhesive. In doing so, an adhesive gasification preventing metal plate member is disposed along the butted portion of the lower butt metal plate member, and the two butt metals are sandwiched between the adhesive gasification preventing metal plate members. A method for joining metal plate members, comprising joining plate members with a resin-based adhesive, and then joining the butted portions of each butted metal plate member by arc welding.   The said 1st metal plate member is formed with an aluminum alloy plate, and the said 2nd metal plate member is formed with the steel plate, The joining of the metal plate member as described in any one of Claims 1-3 characterized by the above-mentioned. Method.

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