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GB/T 38825-2020 English PDF

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GB/T 38825-2020: Requirements of riveting connection in civil aircraft of composite parts
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Basic data

Standard ID GB/T 38825-2020 (GB/T38825-2020)
Description (Translated English) Requirements of riveting connection in civil aircraft of composite parts
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard V18
Classification of International Standard 49.040
Word Count Estimation 18,112
Date of Issue 2020-06-02
Date of Implementation 2020-12-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 38825-2020: Requirements of riveting connection in civil aircraft of composite parts

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Requirements for riveting of composite parts for civil aircraft) ICS 49.040 V18 National Standards of People's Republic of China Requirements for riveting of composite parts for civil aircraft 2020-06-02 release 2020-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Contents

Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 General requirements 1 4.1 Personnel 1 4.2 Environment 1 4.3 Material 1 4.4 Equipment and Tooling 3 4.5 Security Protection 5 5 Process control 5 5.1 Riveting assembly flow chart 5 5.2 Preparation before riveting 7 5.3 Pre-production process testing 7 5.4 Pre-assembly 7 5.5 Determine the hole position 7 5.6 Hole making 8 5.7 Spot facing 9 5.8 Cleaning up excess 9 5.9 Reposition 9 5.10 Stack thickness measurement 9 5.11 Put nails 9 5.12 Riveting 9 6 Quality Control 10 6.1 Quality of hole making 10 6.2 The quality of the spot facing 11 6.3 Quality of riveting 11 Reference 13

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Aircraft Standardization Technical Committee (SAC/TC435). This standard was drafted by. Harbin Aircraft Industry Group Co., Ltd., Hefei Jianghang Aircraft Equipment Co., Ltd., China National Aviation Corporation Institute of Technology. The main drafters of this standard. Gao Liqiu, Zhang Li'an, Zhang Yongkai, Guan Yujie, Li Xuechang, Guo Lulu, Yang Xuemei, Liu Wenbiao, Wu Junjie, Zhao Libing and Li Ganyue. Requirements for riveting of composite parts for civil aircraft

1 Scope

This standard specifies the general requirements, process control and quality control for the riveting of composite parts. This standard is applicable to solid rivet riveting and core-pulling rivet riveting of civil aircraft composite laminates.

2 Normative references

The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 116 rivet technical conditions GB/T 6026 Industrial acetone

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Laminated mixedparts Composite materials and composite materials, composite materials and metal materials are sandwiched and riveted to form components. 3.2 Wet installation wetinstalation Install the sealant in the rivet hole, on the rivet rod and under the rivet head.

4 General requirements

4.1 Personnel Composite material riveting and testing personnel should have composite material knowledge and professional grade certificates and be certified to work. 4.2 Environment 4.2.1 The riveting and assembly area of composite materials should be clean and bright. Generally, the temperature is 15℃~30℃, and the relative humidity is 40%~ 80%, when the technical documents have provisions, they shall be implemented as required. 4.2.2 Dust generated from hole-making and grinding construction should be cleaned up and should not pollute the environment and the parts. 4.2.3 There should be good ventilation and dust removal facilities indoors. 4.3 Materials 4.3.1 Core-pulling rivets should be preferred to avoid impacts on composite parts and damage to the hole wall due to the thickening of the nail rod. 4.3.2 The diameter of the rivet should generally not exceed 4mm, otherwise it is not only difficult to form, but also easy to cause damage to the composite material parts. Meet the knot Where required by the structure, flat or semi-round nail heads should be used as much as possible. 4.3.3 The selection of rivets and washers used for riveting of composite material parts should meet the requirements of engineering drawings, usually titanium alloy or stainless steel

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