JPWO2017169998A1 - 接合構造 - Google Patents
接合構造 Download PDFInfo
- Publication number
- JPWO2017169998A1 JPWO2017169998A1 JP2018509098A JP2018509098A JPWO2017169998A1 JP WO2017169998 A1 JPWO2017169998 A1 JP WO2017169998A1 JP 2018509098 A JP2018509098 A JP 2018509098A JP 2018509098 A JP2018509098 A JP 2018509098A JP WO2017169998 A1 JPWO2017169998 A1 JP WO2017169998A1
- Authority
- JP
- Japan
- Prior art keywords
- gap
- metal material
- homogeneous metal
- welding
- homogeneous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000000463 material Substances 0.000 claims abstract description 444
- 239000007769 metal material Substances 0.000 claims abstract description 120
- 238000003466 welding Methods 0.000 claims abstract description 104
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000005304 joining Methods 0.000 claims description 34
- 229910052751 metal Inorganic materials 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 21
- 239000011347 resin Substances 0.000 claims description 18
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 15
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 8
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 8
- 238000007711 solidification Methods 0.000 description 8
- 230000008023 solidification Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
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- 238000004519 manufacturing process Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
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- -1 Polyethylene terephthalate Polymers 0.000 description 3
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
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- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
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- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
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- 230000004927 fusion Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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- B23K2103/18—Dissimilar materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Abstract
Description
実施の形態の説明に先立ち、本開示に至った経緯を簡単に説明する。
本実施の形態について、図1から図5Bを用いて説明する。
図4に、異種材である第2の材料2と、第2の材料2と異なる異種材である第4の材料10とを、第1の材料1と第3の材料3との間に挟んで接合する実施例を示す。同種系金属材同士の第1の材料1および第3の材料3で挟み、その間に挟まれる第2の材料2と第4の材料10との板厚の合計を第1のギャップ11とした場合、この第1のギャップ11の大きさを適正にした状態でレーザ溶接を実施する。
次に、本実施の形態2について、図1および図6を用いて説明する。
次に、本実施の形態3について、図7を用いて説明する。これまでと重複する部分は説明を省略する。実施の形態1と異なる点は、第1の材料1と第3の材料3との間に挟まれる第2の材料2の板厚が大きい場合、第1の材料1及び第3の材料3と溶接が可能な同種系金属材とする材質のスペーサ9を第2の材料2の貫通穴4の内側に配置し、レーザ光7が照射されて溶接される際の第2の材料2の貫通穴4内での第1の材料1と第3の材料3との板厚方向における隙間としての第1のギャップ11を小さくする点である。
従来の異種材に対する接合用部材としてのリベットは、かしめ時およびスポット溶接時に、異種材料の一部が変形して移動するスペースの確保及びスポット溶接時の電極の位置ズレ等による異種材の陥没等を防いで締結力低下の抑制を可能とするために、R形状の面取りや環状溝等の複雑なリベット形状が必要であった。
2 第2の材料(異種材)
3 第3の材料(第2の同種系金属材)
4 貫通穴(貫通部)
5 第2のギャップ
6 圧縮力
7 レーザ光
8,8a 溶接部
9 スペーサ
10 第4の材料(異種材)
11 第1のギャップ
Claims (9)
- 第1の同種系金属材と、
前記第1の同種系金属材と互いに溶接可能な第2の同種系金属材と、
貫通部が設けられ、前記第1の同種系金属材と前記第2の同種系金属材との間に挟まれ、第1の同種系金属材および第2の同種系金属材に対して溶接困難な異種材と、を備え、
レーザ光が前記貫通部に向けて照射される照射領域の板厚方向において、前記レーザ光が照射される側に位置する前記第1の同種系金属材の照射領域における板厚は、溶接前の状態で存在する、前記照射領域における板厚方向の隙間である第1のギャップに対応する所定の厚みであり、
前記第1の同種系金属材と前記第2の同種系金属材とが前記貫通部を介して互いに溶融結合して前記異種材が圧縮固定されることにより、前記異種材と前記第1の同種系金属材および第2の同種系金属材とが固定されている接合構造。 - 前記第1のギャップは、前記照射領域の前記板厚方向における前記貫通部の長さに対応する、請求項1に記載の接合構造。
- 前記照射領域における前記第1のギャップは、前記照射領域における前記第1の同種系金属材の厚みに対して6%以上40%以下である請求項1または2に記載の接合構造。
- レーザ光が板厚方向から照射される前記照射領域は、前記貫通部に対して所定の第2のギャップを有して小さい請求項1から3のいずれか1項に記載の接合構造。
- 前記第1の同種系金属材と前記第2の同種系金属材とが互いに溶融し接合されている溶接部の外縁に、前記異種材が流動し密着している請求項4に記載の接合構造。
- 前記異種材は樹脂材料であり、前記第2のギャップは、前記第1のギャップに対して200%以上である請求項4または5に記載の接合構造。
- 前記異種材は繊維強化樹脂材料であり、前記第2のギャップは、前記第1のギャップに対して150%以上である請求項4または5に記載の接合構造。
- 前記異種材は非鉄金属であり、前記第2のギャップは、前記第1のギャップに対して125%以上である請求項4または5に記載の接合構造。
- 前記異種材の前記貫通部に前記第1の同種系金属材および前記第2の同種系金属材と溶接が可能な材料のスペーサが配置されている請求項1から8のいずれか1項に記載の接合構造。
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