Analytical evaluation of high-power ultrasonic-assisted cold compaction of titanium powder

Fartashvand, Vahid; Abdullah, Amir; Abedini, Rezvan; Parvin, Nader

doi:10.22104/jpst.2026.8304.1292

Analytical evaluation of high-power ultrasonic-assisted cold compaction of titanium powder

Document Type : Research Article

Authors

Vahid Fartashvand ¹

Amir Abdullah ²

Rezvan Abedini ³

Nader Parvin ⁴

¹ Department of Industrial Design, Faculty of Art, Alzahra University, Tehran, Iran

² Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

³ Department of Mechanical Engineering, University of Science and Technology, Tehran, Iran

⁴ Materials and Metallurgical Engineering Department, Amirkabir University of Technology, Tehran, Iran

10.22104/jpst.2026.8304.1292

Abstract

Researchers have considered powder compaction modeling to predict the necessary compaction pressure at a desirable density. This paper presents cold compaction modeling of titanium powder under high-power longitudinal ultrasonic vibration based on experimental tests. Superimposing high-frequency, high-power mechanical vibration on the compaction process could improve green density and density distribution. For this purpose, a special ultrasonic-assisted cold compaction setup was designed and fabricated. CP titanium powder with a size of < 45 µm was compacted (up to 900 MPa) at different ultrasonic powers (0, 100 W, 150 W, 200 W, 300 W). Then, a mathematical formulation was presented for ultrasonic-assisted cold powder compaction consisting of four terms: initial density, particle rearrangement, particle deformation, and ultrasonic vibration effects. The results showed that the presented mathematical model could accurately predict green compact density as a function of compaction pressure and ultrasonic power.

Graphical Abstract

Analytical evaluation of high-power ultrasonic-assisted cold compaction of titanium powder

Highlights

Superimposed high-power ultrasonic vibration improves densification of CP-Titanium.
The effect of ultrasonic vibration on green density could be explained as an exponential term.
Ultrasonic vibration increases particle rearrangement and decreases interparticle friction as well as die-wall friction.
High compaction pressure damps ultrasonic vibrations.

Keywords

CP Titanium

Cold compaction

Ultrasonic vibration

Compaction model

Subjects

Powder Technology and Applications

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