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GB/T 45675-2025Additive manufacturing — Surface texture measurement and characterization method for metal part manufactured by powder bed fusion (English PDF)

增材制造 金属粉末床熔融成形件表面结构的测量及表征方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 30, 2025

Implementation date

September 1, 2025

Scope

GB/T 45675-2025 is the English-translated version of 增材制造 金属粉末床熔融成形件表面结构的测量及表征方法.

GB/T 45675-2025 is the Chinese national standard covering how rough a powder bed fusion part is — the profile and areal characterization methods, the as-built top and side surfaces, defined separately because a face parallel to the build plane and one that is not are not alike, the preparation of the surface, the stylus, optical and X-ray computed tomography instruments, the measurement locations, tracks and areas, the missing and abnormal data and the filtering, and the test report. First edition, under the China Machinery Industry Federation. In force from 1 September 2025. Issued on 30 May 2025, it has been in force since 1 September 2025.

Document preview — GB/T 45675-2025

National Standard of the People's Republic of China

ICS
25.030
Classification
J 04

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • PrefaceIII
  • 1 Scope1
  • 2 Normative references1
  • 3 Terms and Definitions1
  • 4 Characterization methods2
  • 4.1 General Principles2
  • 4.2 Contour method2
  • 4.3 Regional Law3
  • 5 Surface characteristics and preparation of the test piece5
  • 5.1 Surface characteristics of the test piece5
  • 5.2 Preparation of the surface to be tested6
  • 6 Measuring equipment6
  • 6.1 Classification6
  • 6.2 Working Principle6
  • 6.3 Measuring range6
  • 7 Measurement procedure7
  • 7.1 Measurement location7
  • 7.2 Measurement track7
  • 7.3 Measurement area size7
  • 7.4 Measuring equipment parameters7
  • 8 Data Processing8
  • 8.1 General8
  • 8.2 Missing and Abnormal Data8
  • 8.3 Filtering8
  • 9 Test Report9
  • Appendix A (Informative) Recommended Characterization Parameters for Contour Method and Area Method10
  • Appendix B (Informative) Measurement equipment configuration and parameter selection12
  • B.1 Contact (stylus) instruments12
  • B.2 Optical system12
  • B.3 X-ray computed tomography system13
  • Reference14

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China Machinery Industry Federation.

This document was prepared by the National Technical Committee on Additive Manufacturing Standardization (SAC/TC562) and the National Technical Committee on Product Geometry Technical Specifications Standardization The Committee (SAC/TC240) is jointly responsible for this work.

This document was drafted by: Wuxi Inspection, Testing and Certification Research Institute, Qingdao City University, Tongling University, Shanghai Intelligent Manufacturing Function Platform Co., Ltd., Suzhou Metrology and Testing Institute, China Machinery Research Institute of Standards and Technology (Beijing) Co., Ltd., China Ordnance Science Academy Ningbo Branch, Lingguang Measurement Technology (Shenzhen) Co., Ltd., Suzhou Zhongrui Zhichuang 3D Technology Co., Ltd., Chengdu Tianqi Additive Manufacturing Co., Ltd.

China Aviation Industry Corporation Beijing Great Wall Metrology and Testing Technology Research Institute, China Aerospace Science and Technology Corporation Beijing Aeronautical Materials Research Institute, Nanjing Normal University Ningbo Zhongke Xianglong Lightweight Technology Co., Ltd., Ningbo Shangcai 3D Technology Co., Ltd., Zhejiang Zhongping Powder Metallurgy Co., Ltd., Hubei Provincial Institute of Metrology and Testing Technology, Shanghai University of Engineering Science, Nanjing Institute of Environmental Sciences of the Ministry of Ecology and Environment, Huazhong University of Science and Technology, Shanghai Municipal Institute of Quality and Technical Supervision, Quality Supervision and Inspection Technology Research Institute.

The main drafters of this document are: Hu Juan, Lang Yanmei, Wang Dongsheng, Sun Yaofei, Wang Yunxiang, Zhu Yue, Xue Lian, Zhao Jie, Yan Shenggu, Chen Qiang, Zhou Hongzhi, Liu Ruicheng, He Xiaomei, Jiang Tao, Tang Wenlai, Zhang Hao, Peng Wei, He Renjiang, Zheng Yun, Liu Qiongxin, Luo Jian, Zhou Hao, Chen Xu, Liu Xinwang, Chen Gang.

Additive Manufacturing Metal Powder Bed Fusion Parts Surface structure measurement and characterization methods

1 Scope

This document specifies the characterization method of the surface structure of metal powder bed fusion formed parts, the surface characteristics and preparation of the test parts, the measurement equipment, the test Measurement procedures, data processing and test reports.

This document is applicable to the measurement and characterization of the surface structure of metal powder bed fusion forming parts, and the surface of metal forming parts by other additive manufacturing processes.

Measurement and characterization of structures for reference use.

2 Normative references

GB/T 33523.3

GB/T 35351-2017

ISO 21920

3 Terms and definitions

The terms and definitions defined in GB/T 35351-2017 and the following apply to this document.

3.1 asbuilt

In the additive manufacturing process, in addition to removing the forming platform, removing the support and/or removing the raw material, the parts are A state before art.

[Source. GB/T 35351-2017, 2.7.2]

3.2 top surface

The upper surface of the metal powder bed fusion part is parallel to the XY plane.

Note. In the printing device coordinate system, the axis perpendicular to the Z axis and parallel to the front of the machine is the X axis, and the axis perpendicular to the Z axis and the X axis is the Y axis. GB/T 41507.

3.3 side surface

Surfaces of metal powder bed fusion parts that are not parallel to the XY plane.

Note. In the printing device coordinate system, the axis perpendicular to the Z axis and parallel to the front of the machine is the X axis, and the axis perpendicular to the Z axis and the X axis is the Y axis. GB/T 41507.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 33523.3 · GB/T 35351-2017 · ISO 21920

Editions of GB/T 45675

EditionTitleRevisionStatus
GB/T 45675-2025Additive manufacturing - Surface texture measurement and characterization method for metal part manufactured by powder bed fusioncurrent editionCurrent

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