CN110962377A - 一种降低结构损失的蜂窝夹芯结构零件修补方法 - Google Patents

一种降低结构损失的蜂窝夹芯结构零件修补方法 Download PDF

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CN110962377A
CN110962377A CN201811134993.6A CN201811134993A CN110962377A CN 110962377 A CN110962377 A CN 110962377A CN 201811134993 A CN201811134993 A CN 201811134993A CN 110962377 A CN110962377 A CN 110962377A
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defect area
repairing
hole
pouring sealant
defect
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古尧
王建文
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Chengdu Aircraft Industrial Group Co Ltd
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Chengdu Aircraft Industrial Group Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/02—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using liquid or paste-like material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/26—Apparatus or accessories not otherwise provided for for mechanical pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/26—Apparatus or accessories not otherwise provided for for mechanical pretreatment
    • B29C2073/268—Apparatus or accessories not otherwise provided for for mechanical pretreatment for drilling holes in the area to be repaired
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3076—Aircrafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3076—Aircrafts
    • B29L2031/3082—Fuselages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3097—Cosmonautical vehicles; Rockets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

本发明提供一种降低结构损失的蜂窝夹芯结构零件修补方法，针对缺陷区域弃用铺层梯度打磨环节，直接在缺陷中心钻制一个直径较小的通孔，再使用L型旋转割碎装置将缺陷区域蜂窝芯进行全深度割碎破坏处理，确保缺陷区域蜂窝芯已被割碎后利用通孔和注射器进行灌封胶注射/搅拌，确保灌封胶完全填充缺陷区域腔体，然后执行固化工序。固化打磨恢复原表面，即可在较小程度破坏原结构铺层的情况下充分填充缺陷区域，达到修补目标。

Description

一种降低结构损失的蜂窝夹芯结构零件修补方法
技术领域
本发明涉及复合材料零件的修补方法，特别是蜂窝夹芯结构复合材料的修补方法。
背景技术
随着蜂窝夹芯结构复合材料零件在航空航天领域中的应用越来越多，在制造过程和实际使用中，复合材料零件的损伤不可避免，尤其对于机身蒙皮，梁等需要频繁周转的大型零件，在存放、流转加工过程中极容易因保护不周造成损伤，由于蜂窝芯本身缺陷导致的胶接后板芯区域缺陷也为数众多。这些缺陷往往造成零件无法继续加工，飞机无法继续使用，在无法使用热压罐成型工艺进行修复的情况下，如何快速高效的对复合材料的板芯区缺陷进行修补，并尽可能恢复其强度，是复合材料行业急需解决的问题。
传统的板芯区灌封修补方法是打磨去除缺陷区域的外层碳纤维蒙皮，暴露出全部缺陷后使用灌封胶将缺陷蜂窝芯挖出或灌封，灌封胶固化后再通过铺叠对打磨去除的铺层进行还原。这种方法固然可以完全修复损伤区域蜂窝芯，但对原本正常的结构铺层造成较大破坏，同时打磨铺层及铺叠还原铺层对整个修补周期、环境、难度提出了更高的要求，因此研究出一种能够较小程度破坏原结构铺层，降低修补复杂程度和修补周期的工艺方法，对复合材料夹芯结构件的制造具有重大的意义和应用价值。
发明内容
为了克服夹芯结构缺陷打磨铺层修补在强度和周期方面的不足，本发明提出一种降低结构损失的高效灌封修补方法。
本发明解决其技术问题所采用的技术方案是：
一种降低结构损失的蜂窝夹芯结构零件修补方法，步骤为：
步骤1、在零件的缺陷区域中心钻制一个通孔；
步骤2、使用L型旋转割碎装置将缺陷区域蜂窝芯进行全深度破碎处理；
步骤3、使用注射器通过通孔注射灌封胶并搅拌，确保灌封胶完全填充缺陷区域腔体；
步骤4、固化；
步骤5、打磨零件。
所述步骤1中钻制的通孔直径为2至4mm。
所述步骤3中搅拌过程中采用L型搅拌棒对腔体内的灌封胶进行搅拌。
所述步骤3中填充灌封胶至稍微高出零件表面。
本发明针对缺陷区域弃用铺层梯度打磨环节，直接在缺陷中心钻制一个直径较小的通孔，再使用L型旋转割碎装置将缺陷区域蜂窝芯进行全深度割碎破坏处理，确保缺陷区域蜂窝芯已被割碎后利用通孔和注射器进行灌封胶注射/搅拌，确保灌封胶完全填充缺陷区域腔体，然后执行固化工序。固化打磨恢复原表面，即可在较小程度破坏原结构铺层的情况下充分填充缺陷区域，达到修补目标。
本发明可在较小程度破坏原结构铺层的情况下充分填充缺陷区域，实施简单可靠，提高了材料修复强度，达到修补目标。
具体实施方式
为了进一步说明而不是限制本发明的上述实现方式，下面结合实施例对本发明进一步说明。所有这些构思应视为本技术所公开的内容和本发明的保护范围。
本发明按以下操作进行：首先对缺陷区域进行表面清理工作，确认缺陷的中心点，在缺陷中心钻制一个半径R1-2mm的通孔，通孔贯穿修补区域结构铺层即可。再使用L型旋转割碎装置将缺陷区域蜂窝芯进行全深度割碎破坏处理，确保缺陷区域蜂窝芯已被割碎后利用通孔和注射器进行灌封胶注射，注射过程中可更换L型搅拌棒对腔体内的灌封胶进行搅拌，确保灌封胶完全填充缺陷区域腔体（稍微高出表面）后执行固化工序。固化后打磨零件表面至平滑过渡，恢复原表面，即可在较小程度破坏原结构铺层的情况下充分灌封缺陷区域，达到补强的修补目标。对于一个结构铺层为10层，直径10mm的缺陷，采用传统打磨去除铺层的方式至少需要去除面积为300mm²的结构铺层，而采用本灌封方法仅损失3-12mm²的结构铺层。

Claims (4)

1.一种降低结构损失的蜂窝夹芯结构零件修补方法，其特征在于，步骤为：
步骤1、在零件的缺陷区域中心钻制一个通孔；
步骤2、使用L型旋转割碎装置将缺陷区域蜂窝芯进行全深度破碎处理；
步骤3、使用注射器通过通孔注射灌封胶并搅拌，确保灌封胶完全填充缺陷区域腔体；
步骤4、固化；
步骤5、打磨零件。
2.根据权利要求1所述一种降低结构损失的蜂窝夹芯结构零件修补方法，其特征在于，所述步骤1中钻制的通孔直径为2至4mm。
3.根据权利要求1所述一种降低结构损失的蜂窝夹芯结构零件修补方法，其特征在于，所述步骤3中搅拌过程中采用L型搅拌棒对腔体内的灌封胶进行搅拌。
4.根据权利要求1所述一种降低结构损失的蜂窝夹芯结构零件修补方法，其特征在于，所述步骤3中填充灌封胶至稍微高出零件表面。
CN201811134993.6A 2018-09-28 2018-09-28 一种降低结构损失的蜂窝夹芯结构零件修补方法 Pending CN110962377A (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386565B (de) * 1986-10-03 1988-09-12 Isovolta Reparier-laminat und seine verwendung
EP1072396A2 (en) * 1999-07-30 2001-01-31 Kawasaki Jukogyo Kabushiki Kaisha Sandwich structure and method of repairing the same
US20110030878A1 (en) * 2009-07-29 2011-02-10 Airbus Operations Gmbh Method and a spraying device for the repair of a sandwich plate
CN102705155A (zh) * 2011-03-08 2012-10-03 通用电气公司 用于修复风力涡轮机叶片的方法
CN103786299A (zh) * 2012-10-30 2014-05-14 贝尔直升机德事隆公司 使用可浇注的结构泡沫对蜂窝状芯进行修复、拼接、接合、机械加工和稳定化的方法及结构
EP2930011A1 (en) * 2014-04-07 2015-10-14 AIRBUS HELICOPTERS DEUTSCHLAND GmbH A method of repairing a sandwich component having a honeycomb core with an associated core height
CN105173109A (zh) * 2014-06-06 2015-12-23 哈尔滨飞机工业集团有限责任公司 一种蜂窝夹层结构修理方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386565B (de) * 1986-10-03 1988-09-12 Isovolta Reparier-laminat und seine verwendung
EP1072396A2 (en) * 1999-07-30 2001-01-31 Kawasaki Jukogyo Kabushiki Kaisha Sandwich structure and method of repairing the same
US20110030878A1 (en) * 2009-07-29 2011-02-10 Airbus Operations Gmbh Method and a spraying device for the repair of a sandwich plate
CN102705155A (zh) * 2011-03-08 2012-10-03 通用电气公司 用于修复风力涡轮机叶片的方法
CN103786299A (zh) * 2012-10-30 2014-05-14 贝尔直升机德事隆公司 使用可浇注的结构泡沫对蜂窝状芯进行修复、拼接、接合、机械加工和稳定化的方法及结构
EP2930011A1 (en) * 2014-04-07 2015-10-14 AIRBUS HELICOPTERS DEUTSCHLAND GmbH A method of repairing a sandwich component having a honeycomb core with an associated core height
CN105173109A (zh) * 2014-06-06 2015-12-23 哈尔滨飞机工业集团有限责任公司 一种蜂窝夹层结构修理方法

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