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Acceptance inspection of electron beam welding machines - Part 5: Measurement of run-out accuracy
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Basic data | Standard ID | GB/T 46075.5-2025 (GB/T46075.5-2025) | | Description (Translated English) | Acceptance inspection of electron beam welding machines - Part 5: Measurement of run-out accuracy | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J33 | | Classification of International Standard | 25.160.30 | | Word Count Estimation | 14,127 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | GB/T 46075.5-2025: Acceptance inspection of electron beam welding machines - Part 5: Measurement of run-out accuracy
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ICS 25.160.30
CCSJ33
National Standard of the People's Republic of China
Electron beam welding machine acceptance inspection
Part 5.Measurement of runout accuracy
Part 5.Measurementofrun-outaccuracy
machines-Part 5.Measurementofrun-outaccuracy,MOD)
Released on August 29, 2025
Implementation on March 1, 2026
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Test Preparation and Procedure 1
4.1 General requirements 1
4.2 Measurement range 1
4.3 Instrument and its usage 1
5 Measurement Evaluation 2
Preface
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.
This document is part 5 of GB/T 46075 Acceptance test of electron beam welding machines. GB/T 46075 has been published in the following parts.
--- Part 1.Principles and acceptance conditions;
--- Part 2.Measurement of accelerating voltage characteristics;
--- Part 3.Measurement of electron beam current characteristics;
--- Part 4.Measurement of welding speed;
--- Part 5.Measurement of runout;
--- Part 6.Measurement of beam spot position stability.
This document modifies ISO 14744-5.2000 "Acceptance testing of electron beam welders — Part 5.Measurement of runout accuracy".
This document has the following structural adjustments compared to ISO 14744-5.2008.
--- Added the chapter “Terms and Definitions”.
The technical differences between this document and ISO 14744-5.2000 and their reasons are as follows.
--- Replaced ISO 14744-1.2008 (see 4.2, 4.3 and Chapter 5) with the normative reference GB/T 46075.1-2025.
The degree of conformity of the document is modified to facilitate the application of the standard.
The following editorial changes have been made to this document.
--- Change the name of the standard to "Electron beam welding machine acceptance test Part 5.Measurement of runout accuracy";
--- Added "Note" content to the scope (see Chapter 1).
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.
The document is proposed and coordinated by the National Technical Committee for Standardization of Welding and Related Processes (SAC/TC55).
This document was drafted by. Beijing Kunta Technology Co., Ltd., China Machinery Engineering Corporation Harbin Welding Research Institute Co., Ltd., China Nuclear
Power Research and Design Institute, China North Industries Group Aviation Ammunition Research Institute Co., Ltd., Hebei Yutian Materials Technology Co., Ltd., Harbin Institute of Technology
University of Science and Technology (Weihai), Hefei University of Technology, Capital Aerospace Machinery Co., Ltd., and Zhejiang Bingpeng Automation Technology Co., Ltd.
The main drafters of this document are. Zhang Yuxin, Cao Yukun, Wei Lianfeng, Su Jinhua, Fan Donghui, Chen Xiaoguang, Wang Ting, Zheng Wangwang, Zhu Shaowang,
Tang Yingying.
introduction
As a high-precision welding equipment, electron beam welding machine is widely used in high-end manufacturing fields such as aerospace, precision instruments, and nuclear energy equipment.
Core performance parameters (such as acceleration voltage, beam characteristics, welding speed and beam spot stability) directly determine welding quality and process reliability.
GB/T 46075 "Acceptance Test of Electron Beam Welding Machines" aims to standardize the performance evaluation methods and key parameter measurements of electron beam welding machines in my country.
GB/T 46075 has realized the basic principle through hierarchical structure design.
The implementation of this system will standardize the acceptance process of electron beam welding machines and improve the quality of equipment.
GB/T 46075 is intended to consist of the following six parts.
--- Part 1.Principles and acceptance conditions. Clarify the basic principles, general technical conditions and judgment criteria of acceptance inspection, and provide a basis for subsequent specialized inspection.
This trial provides a normative framework.
--- Part 2.Measurement of accelerating voltage characteristics. Specifies the test method for the stability, accuracy and fluctuation range of the accelerating voltage to ensure
Controllability of electron beam energy output.
--- Part 3.Measurement of electron beam current characteristics. Establish a test process for beam intensity, dynamic response and ripple factor to ensure welding
Consistency of heat input.
--- Part 4.Measurement of welding speed. Quantify the welding speed accuracy through a standardized motion platform and a synchronous signal acquisition system.
Influence on weld formation.
--- Part 5.Measurement of runout accuracy. A detection and evaluation method is proposed for the dynamic positioning error of the electron beam deflection system.
--- Part 6.Measurement of beam spot position stability. By monitoring the amount of beam spot drift, the stability of the equipment in long-term continuous operation is evaluated.
Qualitative.
Electron beam welding machine acceptance inspection
Part 5.Measurement of runout accuracy
1 Scope
This document specifies the measurement requirements for the runout accuracy of electron beam welding machines.
This document applies to the measurement of runout accuracy of moving parts of electron beam welding machines.
Note. The runout accuracy defined in this document is a systematic error and can therefore be used as one of the parameters characterizing the performance of a machine tool. This document does not involve other influencing
Energy factors (such as power, vacuum degree, positioning accuracy of CNC machine tools, etc.) and statistical evaluation methods.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 46075.1-2025 Acceptance test of electron beam welding machines Part 1.Principles and acceptance conditions (ISO 14744-1.2008,
MOD)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Run-out accuracy
The maximum deviation measured perpendicular to the feed direction of the X, Y and Z axes within the work space occupied during welding; or when the workpiece is rotated
The maximum deviation measured in the axial and radial directions under the condition of
Note. Runout accuracy is also the deviation between the actual weld point position of the electron beam and the expected position, that is, the weld point on the workpiece surface. This deviation is caused by the positioning device.
It is done.
4 Test Preparation and Procedure
4.1 General requirements
The runout of each coordinate axis should be measured to provide comprehensive guidance on the accuracy of electron beam runout.
In cases where multiple axes are moved together during the welding process, special measurement procedures should be specified.
Unless otherwise specified, acceptance testing of runout accuracy is normally carried out in an atmospheric chamber.
4.2 Measurement range
The measurements shall be carried out in all important directions and axes under the load conditions specified in 7.4 of GB/T 46075.1-2025.
4.3 Instrument and its usage
The measurement should be carried out using instruments such as mechanical instruments, optical instruments (laser instruments) or inductive displacement sensors, etc., which allow the measurement accuracy to be
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GB/T 46075.5-2025: Acceptance inspection of electron beam welding machines - Part 5: Measurement of run-out accuracy
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