GB/T 43615-2023
Ultrasonic testing method for directional energy deposition metal forming parts in additive manufacturing (English Version)

Standard No.

GB/T 43615-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 43615-2023

Introduction

Ultrasonic testing method for metal parts produced by directed energy deposition in additive manufacturing

1. Overview of the standard

This standard (GB/T 43615-2023) specifies the general requirements, test pieces, reference sensitivity calibration, testing process, evaluation of test results and test reports for ultrasonic testing of metal parts produced by directed energy deposition. It is applicable to metal parts with a cross-sectional thickness of 6 mm to 300 mm.

Dimensions	General requirements	Testing process	Result evaluation
Personnel qualifications	Must meet the requirements of GB/T9445 and master relevant process knowledge.	The use of ultrasonic flaw detectors and the selection of scanning methods.	Quality grade is assessed based on the amplitude of the reflected signal.
Testing environment	Temperature is controlled at 22°C±15°C, without interference factors such as strong magnetism and vibration.	Contact method or water immersion method testing.	Table 2 gives the quality acceptance grade requirements for flat-bottom holes.
Instrumentation	The frequency range of the ultrasonic tester is 0.5 MHz to 25 MHz, and the probe type is selected according to the geometric shape.	Sensitivity calibration and scanning parameter setting.	The bottom wave attenuation does not exceed 50% of the reference value of the comparison test block.

2. Implementation Suggestions

In actual testing, it is recommended to:

• Choose the appropriate probe type and scanning method according to the specific conditions of the formed part.
• Ensure that the production of the comparison test block is consistent with the acoustic transmission characteristics of the tested part.
• Regularly calibrate the instrument to ensure the accuracy of the detection sensitivity.
• Strictly perform surface treatment in accordance with standard requirements to ensure that the detection surface is clean and smooth.

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GB/T 43615-2023 Referenced Document

• GB/T 12604.1 Non-destructive testing—Terminology—Ultrasonic testing
• GB/T 39253 Additive manufacturing—Specification for directed energy deposition of metal materials
• GB/T 9445 Qualification and certification of non-destructive testing personnel*， 2024-09-29 Update
• JB/T 10061 Commonly used specification for A-mode ultrasonic flaw detector using pulse echo technique
• JJG 746 Ultrasonic Flaw Detectors*， 2024-06-14 Update

GB/T 43615-2023 history

• 2023 GB/T 43615-2023 Ultrasonic testing method for directional energy deposition metal forming parts in additive manufacturing

Standard and Specification