Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.5
3.2
Journals
JMMP
Special Issues
Advances in Multi-Axis Machining
share announcement

Advances in Multi-Axis Machining

A special issue of Journal of Manufacturing and Materials Processing (ISSN 2504-4494).

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 19240

Special Issue Editor

Prof. Dr. Kai Tang

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
Interests: geometric modeling; computer-aided design/manufacturing; multi-axis machining of freeform surfaces; multi-axis printing of general and special shapes; feature recognition; modeling of sculptured and deformable objects; motion planning in robotics; computational algorithms and methodologies in manufacturing; geometric optimizations; virtual reality and haptic technologies and their applications in engineering

Special Issue Information

Dear Colleagues,

This Special Issue on “Advances in Multi-Axis Machining” provides a forum aiming to bring together the international community of experts in the field of multi-axis CNC machining to share their cutting-edge scientific research works, and to explore the future development perspectives and stimulate new ideas. We welcome researchers from around the globe to submit papers to this Special Issue in the Journal of Manufacturing and Materials Processing (ISSN 2504-4494) to share their valuable new insights in the field of multi-axis machining.

Scope and Topics (but not limited to)

  • Knowledge- and feature-based multi-axis machining;
  • Energy consumption in multi-axis machining;
  • Efficient tool axis and tool position computation;
  • Collision avoidance in multi-axis machining;
  • General multi-axis tool path computation algorithms;
  • Simulation, verification, and post-processing of multi-axis machining;
  • Surface topography in multi-axis machining;
  • Setup, planning, and pre-processing of multi-axis machining;
  • Chattering and cutting dynamics in multi-axis machining;
  • Tool wear and cutting parameter optimization in multi-axis machining;
  • High-speed and high-performance multi-axis machining;
  • Multi-axis additive manufacturing technologies;
  • Tool path planning in multi-axis hybrid manufacturing;
  • Application of multi-axis machining in processing/cutting specialized materials;
  • NC machining in Industry 4.0.

Prof. Dr. Kai Tang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Manufacturing and Materials Processing is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • multi-axis machining
  • five-axis
  • tool path generation
  • collision avoidance
  • tool orientation

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

22 pages, 10323 KiB  
Article
Convexity and Surface Quality Enhanced Curved Slicing for Support-Free Multi-Axis Fabrication
by Don Pubudu Vishwana Joseph Jayakody, Tak Yu Lau, Ravindra Stephen Goonetilleke and Kai Tang
J. Manuf. Mater. Process. 2023, 7(1), 9; https://doi.org/10.3390/jmmp7010009 - 28 Dec 2022
Cited by 1 | Viewed by 2026
Abstract
In multi-axis fused deposition modeling (FDM) printing systems, support-free curved layer fabrication is realized by continuous transition of the printer nozzle orientation. However, the ability to print 3D models with complex geometric (e.g., high overhang) and topological (e.g., high genus) features is often [...] Read more.
In multi-axis fused deposition modeling (FDM) printing systems, support-free curved layer fabrication is realized by continuous transition of the printer nozzle orientation. However, the ability to print 3D models with complex geometric (e.g., high overhang) and topological (e.g., high genus) features is often restricted by various manufacturability constraints inherent to a curved layer design process. The crux in a multi-axis printing process planning pipeline is to design feasible curved layers and their tool paths that will satisfy both the support-free condition and other manufacturability constraints (e.g., collision-free). In this paper, we propose a volumetric curved layer decomposition method that strives to not only minimize (if not prevent) collision-inducing local shape features of layers, but also enable adaptive layer thickness to comply with a new volumetric error-based surface quality criterion. Our method computes an optimal Radial Basis Functions (RBF) field to modify the fabrication sequence field, from which, the iso-surface layers are extracted to design the corresponding multi-axis printing tool paths. A method to fine-tune variable nozzle orientations on each resulting curved layer is then proposed to overcome possible collisions in high-genus geometries. To validate the concept and exhibit its potential, several support-free fabrication experiments and comparisons with the conventional geodesic field-based slicing are presented, and the results give a preliminary confirmation of the feasibility and advantages of the proposed method. Full article
(This article belongs to the Special Issue Advances in Multi-Axis Machining)
►▼ Show Figures

Figure 1

22 pages, 1252 KiB  
Article
Development of a Cost Model for Vertical Milling Machines to Assess Impact of Lightweighting
by Matthew J. Triebe, Fu Zhao and John W. Sutherland
J. Manuf. Mater. Process. 2021, 5(4), 129; https://doi.org/10.3390/jmmp5040129 - 1 Dec 2021
Viewed by 2930
Abstract
Lightweighting is a design strategy to reduce energy consumption through the reduction of mass of a product. Lightweighting can be applied to machine tools to reduce the amount of energy consumed during the use phase. Thus, the energy cost of machine operation will [...] Read more.
Lightweighting is a design strategy to reduce energy consumption through the reduction of mass of a product. Lightweighting can be applied to machine tools to reduce the amount of energy consumed during the use phase. Thus, the energy cost of machine operation will be reduced. One might also hypothesize that since a lighter-weight machine tool requires less material to build, the cost to produce such a machine will be less. However, it may also be the case that lightweighting a machine tool increases its complexity, which will likely drive up the cost to manufacture the machine. To explore the cost drivers associated with building a machine tool, data on the features associated with a wide variety of vertical milling machine tools are collected. Then, empirical cost models are fit to this data. The results from the cost models show that the machine tool mass is a significant cost driver; other key drivers are the number of axes and spindle power. The models are used to predict the cost benefits of lightweighting in terms of mass, which are compared to potential increased manufacturing costs associated with complexities introduced due to lightweighting. Full article
(This article belongs to the Special Issue Advances in Multi-Axis Machining)
►▼ Show Figures

Figure 1

14 pages, 4776 KiB  
Article
A Multiaxis Tool Path Generation Approach for Thin Wall Structures Made with WAAM
by Matthieu Rauch, Jean-Yves Hascoet and Vincent Querard
J. Manuf. Mater. Process. 2021, 5(4), 128; https://doi.org/10.3390/jmmp5040128 - 30 Nov 2021
Cited by 15 | Viewed by 4122
Abstract
Wire Arc Additive Manufacturing (WAAM) has emerged over the last decade and is dedicated to the realization of high-dimensional parts in various metallic materials. The usual process implementation consists in associating a high-performance welding generator as heat source, a NC controlled 6 or [...] Read more.
Wire Arc Additive Manufacturing (WAAM) has emerged over the last decade and is dedicated to the realization of high-dimensional parts in various metallic materials. The usual process implementation consists in associating a high-performance welding generator as heat source, a NC controlled 6 or 8 degrees (for example) of freedom robotic arm as motion system and welding wire as feedstock. WAAM toolpath generation methods, although process specific, can be based on similar approaches developed for other processes, such as machining, to integrate the process data into a consistent technical data environment. This paper proposes a generic multiaxis tool path generation approach for thin wall structures made with WAAM. At first, the current technological and scientific challenges associated to CAD/CAM/CNC data chains for WAAM applications are introduced. The focus is on process planning aspects such as non-planar non-parallel slicing approaches and part orientation into the working space, and these are integrated in the proposed method. The interest of variable torch orientation control for complex shapes is proposed, and then, a new intersection crossing tool path method based on Design For Additive Manufacturing considerations is detailed. Eventually, two industrial use cases are introduced to highlight the interest of this approach for realizing large components. Full article
(This article belongs to the Special Issue Advances in Multi-Axis Machining)
►▼ Show Figures

Figure 1

18 pages, 7365 KiB  
Article
Generation of Efficient Iso-Planar Printing Path for Multi-Axis FDM Printing
by Danjie Bi, Fubao Xie and Kai Tang
J. Manuf. Mater. Process. 2021, 5(2), 59; https://doi.org/10.3390/jmmp5020059 - 7 Jun 2021
Cited by 7 | Viewed by 2734
Abstract
The emerging multi-axis fused deposition modeling (FDM) printing process is a powerful technology for fabricating complicated 3D models that otherwise would require extensive support structures or suffer the severe stair-case effect if printed on a conventional three-axis FDM printer. However, because of the [...] Read more.
The emerging multi-axis fused deposition modeling (FDM) printing process is a powerful technology for fabricating complicated 3D models that otherwise would require extensive support structures or suffer the severe stair-case effect if printed on a conventional three-axis FDM printer. However, because of the addition of two rotary axes which enables the printing nozzle to change its orientation continuously, and the fact that the printing layer is now curved, determining how a nozzle printing path to cover the layer becomes a non-trivial issue, since the rotary axes of the printer in general have a much worse kinematic capacity than the linear axes. In this paper, specifically targeting robotic printing, we first propose an efficiency indicator called the material deposition rate which considers both the local geometry of the layer surface and the kinematic capacities of the printer. By maximizing this indicator globally, a best drive plane direction is found, and then the classic iso-planar method is adopted to generate the printing path for the layer, which not only upholds the specified printing quality but also strives to maximize the kinematic capacities of the printer to minimize the total printing time. Preliminary experiments in both computer simulation and physical printing are carried out and the results give a positive confirmation on the proposed method. Full article
(This article belongs to the Special Issue Advances in Multi-Axis Machining)
►▼ Show Figures

Figure 1

13 pages, 4700 KiB  
Article
Influence of Tool Length and Profile Errors on the Inaccuracy of Cubic-Machining Test Results
by Zongze Li, Hiroki Ogata, Ryuta Sato, Keiichi Shirase and Shigehiko Sakamoto
J. Manuf. Mater. Process. 2021, 5(2), 51; https://doi.org/10.3390/jmmp5020051 - 19 May 2021
Viewed by 2123
Abstract
A cubic-machining test has been proposed to evaluate the geometric errors of rotary axes in five-axis machine tools using a 3 × 3 zone area in the same plane with different tool postures. However, as only the height deviation among the machining zones [...] Read more.
A cubic-machining test has been proposed to evaluate the geometric errors of rotary axes in five-axis machine tools using a 3 × 3 zone area in the same plane with different tool postures. However, as only the height deviation among the machining zones is detected by evaluating the test results, the machining test results are expected to be affected by some error parameters of tool sides, such as tool length and profile errors, and there is no research investigation on how the tool side error influences the cubic-machining test accuracy. In this study, machining inaccuracies caused by tool length and tool profile errors were investigated. The machining error caused by tool length error was formulated, and an intentional tool length error was introduced in the simulations and actual machining tests. As a result, the formulated and simulated influence of tool length error agreed with the actual machining results. Moreover, it was confirmed that the difference between the simulation result and the actual machining result can be explained by the influence of the tool profile error. This indicates that the accuracy of the cubic-machining test is directly affected by tool side errors. Full article
(This article belongs to the Special Issue Advances in Multi-Axis Machining)
►▼ Show Figures

Figure 1

19 pages, 30831 KiB  
Article
The Performance of Polycrystalline Diamond (PCD) Tools Machined by Abrasive Grinding and Electrical Discharge Grinding (EDG) in High-Speed Turning
by Guangxian Li, Ge Wu, Wencheng Pan, Rizwan Abdul Rahman Rashid, Suresh Palanisamy and Songlin Ding
J. Manuf. Mater. Process. 2021, 5(2), 34; https://doi.org/10.3390/jmmp5020034 - 12 Apr 2021
Cited by 10 | Viewed by 4115
Abstract
Polycrystalline diamond (PCD) tools are widely used in industry due to their outstanding physical properties. However, the ultra-high hardness of PCD significantly limits the machining efficiency of conventional abrasive grinding processes, which are utilized to manufacture PCD tools. In contrast, electrical discharge grinding [...] Read more.
Polycrystalline diamond (PCD) tools are widely used in industry due to their outstanding physical properties. However, the ultra-high hardness of PCD significantly limits the machining efficiency of conventional abrasive grinding processes, which are utilized to manufacture PCD tools. In contrast, electrical discharge grinding (EDG) has significantly higher machining efficiency because of its unique material removal mechanism. In this study, the quality and performance of PCD tools machined by abrasive grinding and EDG were investigated. The performance of cutting tools consisted of different PCD materials was tested by high-speed turning of titanium alloy Ti6Al4V. Flank wear and crater wear were investigated by analyzing the worn profile, micro morphology, chemical decomposition, and cutting forces. The results showed that an adhesive-abrasive process dominated the processes of flank wear and crater wear. Tool material loss in the wear process was caused by the development of thermal cracks. The development of PCD tools’ wear made of small-sized diamond grains was a steady adhesion-abrasion process without any catastrophic damage. In contrast, a large-scale fracture happened in the wear process of PCD tools made of large-sized diamond grains. Adhesive wear was more severe on the PCD tools machined by EDG. Full article
(This article belongs to the Special Issue Advances in Multi-Axis Machining)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop