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Joshua Tarbutton
University of North Carolina at Charlotte
40Publications
7H-index
132Citations
Publications 40
Newest
C. C. Lee1
Estimated H-index: 1
(A&M: Texas A&M University),
Joshua Tarbutton7
Estimated H-index: 7
(UNCC: University of North Carolina at Charlotte)
This paper represents a polymeric piezoelectric manufacturing process for sensing and actuation applications. The electric poling-assisted additive manufacturing (EPAM) process combining additive manufacturing (AM) with polymeric poling process has been recently introduced. This process keeps piezoelectric polymer dipoles well-aligned and uniform over a large area in a single-step direct printing process. Here, the EPAM process was employed to directly print polyvinylidene fluoride (PVDF) polyme...
Published on Jan 21, 2019
Travis W. Knight8
Estimated H-index: 8
(USC: University of South Carolina),
Tanvir Farouk17
Estimated H-index: 17
(USC: University of South Carolina)
+ 3 AuthorsJoshua Tarbutton7
Estimated H-index: 7
(UNCC: University of North Carolina at Charlotte)
Published on Jan 1, 2019in Procedia Manufacturing
Fei Shen (UNCC: University of North Carolina at Charlotte), Joshua Tarbutton7
Estimated H-index: 7
(UNCC: University of North Carolina at Charlotte)
Abstract This paper presents a novel automatic tool path planning approach which employs the scanned data as the stock. Using the scan data as the stock allows a new geometrical approach to measure the difference between the stock model and desired final geometry. This approach employs a voxel model as the underlying geometric representation, which enables an efficient parallel tool path planning algorithm based on a general-purpose graphics processing unit (GPGPU) approach. The approach is comp...
Published on Jan 1, 2019in Procedia Manufacturing
Mohammadrafi Marandi (UNCC: University of North Carolina at Charlotte), Joshua Tarbutton7
Estimated H-index: 7
(UNCC: University of North Carolina at Charlotte)
Abstract The sensitivity of piezoelectric PVDF sensors is directly related to the concertation and orientation of the polar phases. Previous efforts in obtaining oriented polar phases during 3D printing proved to be challenging. In this paper the superiority of the co-polymer PVDF-TrFE when compared to PVDF for 3D printing is demonstrated. In contrast to PVDF, PVDF-TrFE forms nearly pure β-phase in solidification from melt. The emergence of more β-phase than the non-polar α-phase is demonstrated...
Published on Aug 27, 2018in Journal of Intelligent Manufacturing3.54
Omid Yousefian1
Estimated H-index: 1
(NCSU: North Carolina State University),
Andrey Balabokhin1
Estimated H-index: 1
(USC: University of South Carolina),
Joshua Tarbutton7
Estimated H-index: 7
(UNCC: University of North Carolina at Charlotte)
A new digital-based model is presented for the prediction of cutting forces in 3-axis CNC milling of surfaces. The model uses an algorithm to detect the work-piece/cutter intersection domain automatically for given cutter location, cutter and work-piece geometries. The algorithm uses a voxel-based representation for the workpiece and rasterized tool slice to detect the tool engagement. Furthermore, an analytical approach is used to calculate the cutting forces based on the discretized model. The...
Published on Jan 2, 2018in Computer-aided Design and Applications
Dmytro Konobrytskyi (Uber ), Mohammad M. Hossain6
Estimated H-index: 6
(Georgia Institute of Technology)
+ 2 AuthorsThomas Kurfess18
Estimated H-index: 18
(Georgia Institute of Technology)
ABSTRACTWhile 5-axis CNC machines improve the manufacturing productivity, the tool-path programming demands human expertise and tremendous time investment to generate collision-free optimal tool trajectories. To address the challenge of multi-axis CNC programming, this work presents a new discrete volume based geometry representation that naturally enables highly parallel geometry processing. Then it formulates and discusses a methodology for tool path planning algorithms designed around the for...
Published on Oct 1, 2017in Sensors and Actuators A-physical2.74
Ethan D. Burnham-Fay1
Estimated H-index: 1
(UR: University of Rochester),
Tue Le1
Estimated H-index: 1
(USC: University of South Carolina)
+ 1 AuthorsJonathan D. Ellis9
Estimated H-index: 9
(UR: University of Rochester)
Abstract Polyvinyldene fluoride (PVDF) polymer piezoelectric actuators were manufactured using an electric poling-assisted additive manufacturing (EPAM) process and tested for actuation strain in the thickness direction. A heterodyne interferometer was used to measure the strain developed by the actuators as a function of applied voltage. Results were compared to a commercially available ceramic lead–zirconium–titanate (PZT) actuator. The EPAM PVDF samples exhibit strains up to 8.78 m ϵ , compar...
Andrey Balabokhin1
Estimated H-index: 1
(USC: University of South Carolina),
Joshua Tarbutton7
Estimated H-index: 7
(UNCC: University of North Carolina at Charlotte)
Tool selection in milling operation is an important step that dramatically influence the milling time. This paper discusses a new method to select the best cutter for different zones of a free-form surface from the list of available generalized cutters. A digital, voxel-based model is used to represent the workpiece and the available tools. First, the finishing performance is calculated for every tool and for every cutter location point. Second, the tool with maximum performance is selected for ...
Published on Aug 1, 2017in Journal of Manufacturing Processes3.46
Andrey Balabokhin1
Estimated H-index: 1
(USC: University of South Carolina),
Joshua Tarbutton7
Estimated H-index: 7
(USC: University of South Carolina)
Abstract In order to generate a tool path, scallop height should be under the given precision requirement and the tool path should be as short as possible. Iso-scallop tool path generation method is traditionally used to generate the effective tool path. This paper discussed a new method to generate a iso-scallop and contour-parallel tool path for a generalized cutter and an arbitrary area on free-form surface in 3-axis CNC milling. The milling surface, originally represented as a triangular mes...
Published on Jun 1, 2017in Measurement2.79
ChaBum Lee10
Estimated H-index: 10
(Tennessee Technological University),
Seongkyul Jeon2
Estimated H-index: 2
(Tennessee Technological University)
+ 2 AuthorsJoshua A. Tarbutton1
Estimated H-index: 1
(UNC: University of North Carolina at Chapel Hill)
Abstract We analyzed the parameter effects of an optical knife-edge sensor (OKES) and the measurement uncertainty to achieve high linearity, long range, and high accuracy for nanopositioning stage applications. The OKES utilizes interference fringes produced from diffraction across the knife-edge. The total field at the detector was calculated from superposition of the incident field and the diffracted field at the knife-edge, and the edge diffraction effects on the sensor design parameters (dis...
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