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Journal of Manufacturing and Materials Processing, Volume 5, Issue 3

September 2021 - 37 articles

Cover Story: This study investigated the impact of the laser speed, power, and the position and orientation of the samples, on surface roughness (Ra) and dimensional accuracy (DA) during CO2 laser cutting of PMMA sheets. A mixed five-parameter fractional factorial design was applied, and thirty-six measurements for the Ra and DA were obtained. The results were analyzed using ANOM, ANOVA, and interaction plots. It was concluded that laser speed is the critical parameter for Ra and DA, resulting in strong interactions with laser power and positioning parameters. It was also shown that Ra values are affected by the orientation of the specimen and can be minimized when samples are aligned in the laser travel direction. Finally, it was proved that lower laser speed improves Ra but reduces DA. View this paper
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Articles (37)

  • Article
  • Open Access
10 Citations
3,878 Views
16 Pages

Additive Manufacturing presents unique advantages over traditional manufacturing processes and has the potential to accelerate technical advancement across multiple sectors, permitting far greater freedom in design than conventional manufacturing. Ho...

  • Article
  • Open Access
29 Citations
5,996 Views
15 Pages

Investigation of the Influence of Tool Rake Angles on Machining of Inconel 718

  • Dongdong Xu,
  • Liang Ding,
  • Yang Liu,
  • Jinming Zhou and
  • Zhirong Liao

It is essential for superalloys (e.g., Inconel 718) to obtain an anticipated surface integrity after machining, especially for safety critical areas (e.g., aerospace). As one of the main characteristics for cutting tools, the rake angle has been reco...

  • Article
  • Open Access
6 Citations
3,468 Views
21 Pages

Minimisation of Pose-Dependent Regenerative Vibrations for 5-Axis Milling Operations

  • Ines Wilck,
  • Andreas Wirtz,
  • Torben Merhofe,
  • Dirk Biermann and
  • Petra Wiederkehr

The machining of free-formed surfaces, e.g., dies or moulds, is often affected by tool vibrations, which can affect the quality of the workpiece surface. Furthermore, in 5-axis milling, the dynamic properties of the system consisting of the tool, spi...

  • Article
  • Open Access
6 Citations
3,797 Views
19 Pages

Several manufacturing processes are used to beneficially influence the surface and subsurface properties of manufactured parts. Different aspects such as the surface topography or resulting residual stresses are addressed using different manufacturin...

  • Review
  • Open Access
46 Citations
6,208 Views
23 Pages

The eventual material degradation of steel components in bio-implant, marine, and high-temperature applications is a critical issue that can have widespread negative ramifications from a safety and economic point of view. Stemming from their tribolog...

  • Article
  • Open Access
22 Citations
6,371 Views
17 Pages

Examples of How Increased Formability through High Strain Rates Can Be Used in Electro-Hydraulic Forming and Electromagnetic Forming Industrial Applications

  • Gilles Avrillaud,
  • Gilles Mazars,
  • Elisa Cantergiani,
  • Fabrice Beguet,
  • Jean-Paul Cuq-Lelandais and
  • Julien Deroy

In order to take up some challenges in metal forming coming from the recent environmental stakes, Electromagnetic Forming and Electro-Hydraulic Forming processes have been developed at the industrial scale, using the advantages of high strain rates....

  • Article
  • Open Access
47 Citations
7,485 Views
17 Pages

Experimental and Computational Investigation of Lattice Sandwich Structures Constructed by Additive Manufacturing Technologies

  • Nikolaos Kladovasilakis,
  • Paschalis Charalampous,
  • Konstantinos Tsongas,
  • Ioannis Kostavelis,
  • Dimitrios Tzetzis and
  • Dimitrios Tzovaras

Additive Manufacturing (AM) technologies offer the ability to construct complex geometrical structures in short manufacturing lead time coupled with a relatively low production cost when compared to traditional manufacturing processes. The next trend...

  • Article
  • Open Access
5 Citations
4,183 Views
16 Pages

Surface Qualification Toolpath Optimization for Hybrid Manufacturing

  • Austen Thien,
  • Christopher Saldana and
  • Thomas Kurfess

Hybrid manufacturing machine tools have great potential to revolutionize manufacturing by combining both additive manufacturing (AM) and subtractive manufacturing (SM) processes on the same machine tool. A prominent issue that can occur when going fr...

  • Review
  • Open Access
23 Citations
4,610 Views
17 Pages

The Present State of Surface Conditioning in Cutting and Grinding

  • Benedict Stampfer,
  • Germán González,
  • Michael Gerstenmeyer and
  • Volker Schulze

All manufacturing processes have an impact on the surface layer state of a component, which in turn significantly determines the properties of parts in service. Although these effects should certainly be exploited, knowledge on the conditioning of th...

  • Article
  • Open Access
6 Citations
4,733 Views
18 Pages

The present study examines the fatigue of friction stir welded (FSW) aluminum 6061, 7075, 1060 joints followed by (i) in situ and sequential rolling (SR) processes, (ii) plastic burnishing (iii) solution-treatment artificial aging (STA), (iv) local a...

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J. Manuf. Mater. Process. - ISSN 2504-4494