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Updated: Jan 16, 2026

Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition

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Published on: March 13, 2018

Advancements in In-Situ Monitoring Technologies for Detecting Process-Induced Defects in the Directed Energy

Md Jonaet Ansari^1,2, Anthony Roccisano^1,2, Elias J G Arcondoulis³

¹Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia.

Materials (Basel, Switzerland)

|September 27, 2025

Summary

This summary is machine-generated.

In-situ process monitoring detects defects in laser-based directed energy deposition for metallic materials (DED-LB/M), improving repeatability and quality for additive manufacturing applications.

Keywords:

defects directed energy deposition in-situ monitoring technique

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Published on: May 10, 2021

Area of Science:

Materials Science and Engineering
Additive Manufacturing
Process Monitoring

Background:

Laser-based directed energy deposition for metallic materials (DED-LB/M) is a key additive manufacturing (AM) technique for coatings, component repair, and complex structures.
Process-induced defects hinder DED-LB/M repeatability, stability, and widespread adoption in high-quality industries.
In-situ process monitoring offers real-time defect detection to address these challenges.

Purpose of the Study:

To conduct a comparative analysis of in-situ monitoring techniques for DED-LB/M.
To evaluate the effectiveness of these techniques in identifying process-induced defects.
To critically analyze the limitations of current defect detection methods.

Main Methods:

Categorization of sensing methods based on sensor data format and data processing techniques.
Assessment of techniques for detecting both surface and internal defects.
Comparative analysis of different in-situ monitoring approaches.

Main Results:

Various in-situ monitoring techniques show potential for real-time defect detection in DED-LB/M.
The effectiveness varies based on sensor data format, processing, and defect type (surface vs. internal).
Limitations in current techniques impact their industrial applicability.

Conclusions:

In-situ monitoring is crucial for mitigating defects in DED-LB/M.
Significant challenges remain in implementing these techniques for industrial DED-LB/M.
Future research should focus on overcoming these challenges to enhance industrial adoption.