GB/T 40121-2021 English PDFUS$559.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 40121-2021: Technical product documentation - Representation of product residual stress symbol Status: Valid
Basic dataStandard ID: GB/T 40121-2021 (GB/T40121-2021)Description (Translated English): Technical product documentation - Representation of product residual stress symbol Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J04 Word Count Estimation: 30,379 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 40121-2021: Technical product documentation - Representation of product residual stress symbol---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. Technical product documentation-Representation of product residual stress symbol ICS 01.110 J04 National Standards of People's Republic of China Technical product documentation product residual stress symbolic representation Released on 2021-05-21 2021-09-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee Table of contentsForeword Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 General requirements 2 5 The basic symbol of product residual stress 2 6 Composition of product residual stress symbols 3 7 Representation of product residual stress parameter symbols 3 8 Representation of symbols for product residual stress detection method 4 9 Representation of product residual stress relief method symbols 4 10 Representation of product residual stress state symbol 5 11 Extended symbol of product residual stress 6 12 Marking of product residual stress symbols 6 Appendix A (informative appendix) The basic principles of residual stress detection and elimination methods for some commonly used products 13 Appendix B (Normative appendix) Symbol drawing of product residual stress 15 Appendix C (informative appendix) Examples of meaning of product residual stress symbols 17 Appendix D (informative appendix) Example of two-dimensional labeling of product residual stress symbols 19 Appendix E (informative appendix) Examples of three-dimensional marking of product residual stress symbols 23 Reference 27ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Technical Product Documentation Standardization Technical Committee (SAC/TC146). Drafting organizations of this standard. Beijing Institute of Technology, Xi'an Jesse Aviation Technology Co., Ltd., Maanshan Fangyuan Precision Machinery Co., Ltd., Changshu Zhongke Century Biotechnology Co., Ltd., Zhongshan Testing Institute of Guangdong Special Equipment Testing and Research Institute, Qingdao Mesduff Standard Technical Service Co., Ltd., Hunan Vocational and Technical College of Industry, Bureau Veritas Inspection Technology (Guangdong) Co., Ltd., China National Heavy Duty Truck Group Co., Ltd., Anhui Quality and Standardization Research Institute, Shanghai Shushe Technology Co., Ltd., CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co., Ltd., Dalian Institute of Science and Technology, Xi'an Rongjun General Standardization Research Institute Co., Ltd., China Machinery Productivity Promotion Center, Beijing Kexinjiyuan Information Technology Co., Ltd. Co., Ltd., Heke Software (Beijing) Co., Ltd., Hangzhou Sino-US Huadong Pharmaceutical Co., Ltd., Anhui Product Quality Supervision and Inspection Institute. The main drafters of this standard. Xu Chunguang, Li Peilu, Li Tong, Xu Xu, Chen Lijian, Li Daisong, Zheng Bo, Yang Dongbai, Song Jianfeng, Lu Yuren, Yin Peng, Lin Kaiming, Li Qiang, Wu Qian, Chen Changhong, Mou Shan, Mou Quanchen, Ren Haojuan, Cheng Yingchao, Wang Lin, Wang Hong, Pan Kanghua, Peng Chengdan, Lei Yongli, Li Huaizhu, Liu Shuhui, Wu Hui, Yu Zhongjie, Zhou Lei.IntroductionProduct residual stress is the self-balanced stress remaining on the surface and internal of the component after the external load of the product component is removed. Direction and position three-dimensional space vector distribution characteristics. The residual stress of the product is a basic attribute of the product component, which exists in the whole life cycle of the product Period, the strength, fracture resistance, fatigue strength, dimensional stability, corrosion resistance, manufacturing quality and service (work) of the product components Reliability has an important impact, and has become a description of the performance of product materials and components such as geometric tolerances, surface roughness and material hardness. Important basic parameters. In the drawing of the product design stage, clear residual stress requirements are given to facilitate product manufacturing, acceptance and service. During the service process, the residual stress state is effectively identified and controlled, so as to further improve and ensure the product quality and service safety. Non-uniform temperature changes, non-uniform phase transitions, non-uniform plastic deformations, non-uniform chemical reactions and cyclic loading fatigue behaviors within the component materials Residual stress will be generated by various physical processes such as application. There are two main ways to generate residual stress. one is generated during product processing Stress; the second is the stress generated during the service (working) of the product. These two ways of generating residual stress are both necessary for product formation and existence. Ran link. ---There are three types of residual stress generated during product processing. one is the subtractive processing process (including. turning, milling, planing, grinding, boring, drawing, drilling, rolling, inserting Etc.); the second is the additive processing process (including. 3D printing, casting, casting, heat treatment, coating, welding, bonding, etc.); the third is the deformation plus Process (including. forging, extrusion, punching, pressing, bending, shot peening, rolling and impact, etc.). The residual stresses generated by these machining processes are The component performance has an important influence, which is the main factor to be considered in product design. ---There are also three types of residual stresses generated in the service process of the product. First, the product is subjected to external static forces (including. extrusion, stretching, twisting, etc.) Constant force); second, the product is affected by external power (including. alternating tension, linear reciprocation, torsion deformation, etc.). Labor process, temperature alternating effects, etc.); the third is the natural state (including. storage in the state to be processed, storage in the state of service or natural environment Under storage, etc.), these service forces and residual stresses work together to affect the performance, safety and reliability of product components or fatigue life. Life is also important, and it is also the main factor to be considered in product design. The purpose of this standard is to meet the effective expression of the technical requirements for the residual stress of component materials during the product life cycle. Realize the residual stress distribution state and numerical technical requirements of components in the production and service links of design, manufacturing, inspection, testing, physical and chemical measurement, etc. The symbolic representation and labeling. Technical product documentation product residual stress symbolic representation1 ScopeThis standard specifies the general requirements, basic symbols, symbol composition, detection method symbols, and elimination method symbols for product residual stress symbols. Number, status symbol, extension symbol, and labeling method. This standard applies to products in the machinery manufacturing industry that require residual stress states during the design, manufacturing, inspection, and service processes. Products in related industries such as light industry and daily necessities can also be used as reference.2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 131 Geometric Technical Specification for Products (GPS) Representation of Surface Structure in Technical Product Documents GB/T 324 Symbol notation for welds GB/T 1182 Geometric Technical Specification for Products (GPS) Geometric Tolerance Shape, Direction, Position and Runout Tolerance Marking GB/T 4457.2 Basic regulations for the guideline and datum line of the drawing method of technical drawing GB/T 4458.3 Mechanical Drawing Axonometric Drawing GB/T 4458.4 Mechanical drawing dimension notation method GB/T 7704 Non-destructive testing X-ray stress determination method GB/T 10567.1 Inspection method for residual stress of copper and copper alloy processed materials test method for mercury nitrate GB/T 10567.2 Inspection method for residual stress of copper and copper alloy processed materials, ammonia fumigation test method GB/T 12604.1-2020 Non-destructive testing term Ultrasonic testing GB/T 14691 Technical drawing font GB/T 15754 Technical Drawing Cone Dimensions and Tolerance Note Method GB/T 16923 Normalizing and Annealing of Steel Parts GB/T 19096 Technical Drawing Drawing Method Undefined Terminology and Notation of Shape Edge GB/T 20737-2006 Non-destructive testing general terms and definitions GB/T 24179 Determination of Residual Stress in Metallic Materials Indentation Strain Method GB/T 24746 Graphical symbol representation for bonding, bending and extrusion of technical drawings GB/T 25712 Vibration aging process parameter selection and effect evaluation method GB/T 26078 Explosive treatment method for welding residual stress of metallic materials GB/T 26140 Neutron Diffraction Method for Nondestructive Testing and Measuring Residual Stress GB/T 31214.1 Spring Shot Peening Part 1.General Rules GB/T 31218 Determination of Residual Stress in Metallic Materials by Total Relief Strain Method GB/T 31310 Determination of Residual Stress in Metallic Materials by Drilling Strain Method GB/T 32073 Non-destructive testing residual stress ultrasonic critical refraction longitudinal wave testing method GB/T 33163 Ultrasonic impact treatment method for residual stress of metallic materials GB/T 33210 Non-destructive testing method of electromagnetic detection of residual stress JB/T 12392 Machining process parameter representation ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 40121-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 40121-2021_English as soon as possible, and keep you informed of the progress. 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