GB/T 38760-2020 English PDFUS$859.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 38760-2020: Geometrical product specifications (GPS) - Features utilized in specification and verification Status: Valid
Basic dataStandard ID: GB/T 38760-2020 (GB/T38760-2020)Description (Translated English): Geometrical product specifications (GPS) - Features utilized in specification and verification Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J04 Classification of International Standard: 17.040.30 Word Count Estimation: 46,416 Date of Issue: 2020-04-28 Date of Implementation: 2020-11-01 Quoted Standard: GB/T 24637.1; GB/T 24637.2 Adopted Standard: ISO 22432-2011, MOD Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration Summary: This standard specifies the general terms and element types of workpiece geometric elements. These definitions are based on the concepts expanded in GB/T 24637.1. This International Standard specifies a "road map" of the interrelationships between geometric elements. This standard is intended for establishing future standards in a consistent manner between industry and software manufacturers. GB/T 38760-2020: Geometrical product specifications (GPS) - Features utilized in specification and verification---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. Geometrical product specifications (GPS)-Features utilized in specification and verification ICS 17.040.30 J04 National Standards of People's Republic of China Product Geometric Technical Specification (GPS) Elements used in specification and inspection (ISO 22432..2011, MOD) 2020-04-28 release 2020-11-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee ContentsForeword I 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Relationships between terms of geometric elements 29 Appendix A (informative appendix) Overview Figure 33 Appendix B (informative appendix) Examples of links between elements 39 Appendix C (Informative Appendix) Relationship with GPS Matrix Model 42 References 43ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting method to modify the use of ISO 22432..2011 "Product Geometric Technical Specification (GPS) specification and inspection Elements ". There are technical differences between this standard and ISO 22432..2011.The corresponding technical differences and their causes are as follows. --- With regard to normative quotation documents, this standard has been adjusted with technical differences to adapt to my country's technical conditions and adjustments The situation is reflected in Chapter 2 "Regulatory Reference Documents", with specific adjustments as follows. ● Replace ISO 14660-1..1999 and ISO /T S17450-1..2005 with GB/T 24637.1 modified to adopt international standards; ● Replace ISO /T S17450-2..2002 with GB/T 24637.2 modified to adopt international standards; --- Chapter 3 terms and definitions related to ISO 17450-1 are unified according to ISO 17450-1..2011 (GB/T 24637.1-2020) Update; --- Deleted the original picture 4b), amended the error of Figure 6b). This standard also made the following editorial changes. --- Change "See Figure 14" in Note 3 of 3.3 to "See Figure 15". The original text of ISO 22432..2011 is incorrect. This standard is proposed and managed by the National Product Geometry Technical Standardization Technical Committee (SAC/TC240). This standard was drafted by. China Machine Productivity Promotion Center, Zhengzhou University, Xi'an West Valley Microelectronics Co., Ltd., Beijing Times Zhifeng Branch Technology Co., Ltd., Zhejiang University, Shanghai Institute of Metrology and Testing Technology. The main drafters of this standard. Zhao Fengxia, Ming Cuixin, Yang Jiangxin, Hao Jianguo, Qu Chaoqing, Fang Dongyang, Bai Wei, Zhu Yue. Product Geometric Technical Specification (GPS) Elements used in specification and inspection1 ScopeThis standard defines the general terms and element types of the geometric elements of the workpiece. These definitions are based on the extended concept of GB/T 24637.1. This standard gives a "road map" of the relationship between geometric elements. This standard applies to the establishment of future standards between industry and software manufacturers in a consistent manner.2 Normative referencesThe following documents are essential for the application of this document. For dated references, 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 24637.1 Geometrical Product Specification (GPS) General Concept Part 1.Geometric Specification and Inspection Model (GB/T 24637.1-2020, ISO 17450-1..2011, MOD) GB/T 24637.2 Product Geometric Technical Specifications (GPS) General Concept Part 2.Basic Principles, Specifications, Operation Sets and Inaccuracy Rating (GB/T 24637.2-2020, ISO 17450-2..2012, MOD)3 Terms and definitionsThe terms and definitions defined in GB/T 24637.1 and GB/T 24637.2 and the following apply to this document. 3.1 Surface model A model representing the physical limit set of virtual or actual artifacts. [GB/T 24637.1-2020, definition 3.2] Note 1.The model is applicable to all closed surfaces (see Figure 1 and Appendix A Figure A.1). Note 2.The surface model allows the definition of single elements, feature sets and/or partial features. All products can be simulated by the surface model corresponding to each workpiece. Example. 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