Next Article in Journal
Quantitative Analysis of Inclusion Engineering on the Fatigue Property Improvement of Bearing Steel
Next Article in Special Issue
Review on Advances in Metal Micro-Tube Forming
Previous Article in Journal
Characterization of Microstructure and Mechanical Properties of Stellite 6 Part Fabricated by Wire Arc Additive Manufacturing
Previous Article in Special Issue
A New Compression Test for Determining Free Surface Roughness Evolution in Thin Sheet Metals
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle

Material Flow in Ultrasonic Orbital Microforming

Institute of Manufacturing Technologies, Warsaw University of Technology, Warsaw 02-524, Poland
Metals 2019, 9(4), 475;
Received: 18 March 2019 / Revised: 18 April 2019 / Accepted: 22 April 2019 / Published: 24 April 2019
(This article belongs to the Special Issue Metal Micro-forming)
PDF [14876 KB, uploaded 24 April 2019]
  |     |  


Ultrasonic orbital microforming—UOM—uses the broadly understood idea of orbital forging but uses very different laws of physics. The only shaping force in this process is the inertia force resulting from the acceleration in the rotary motion of the workpiece. Micro specimen blanked from cold rolled aluminum sheet metal was used in the applied UOM process. Only the upper and lower part of the sample is deformed that gives about 70% of volume. The rest—the middle part—remains undeformed. The final shape of the product is influenced by the shape of the inside of the die in which the UMO process is carried out. However, this effect is not a direct one. The product shape does not repeat the shape of the interior of the die. The preliminary experiments with modular micro-die have been performed on the way of controlling the shape of deformed micro-objects. The microstructure analysis has been done as well as micro-hardness distribution. View Full-Text
Keywords: microforming; ultrasonic; orbital forming microforming; ultrasonic; orbital forming

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Presz, W. Material Flow in Ultrasonic Orbital Microforming. Metals 2019, 9, 475.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top