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Application of Optical Measurements to Assess Form Deviations of Cylindrical Parts Made Using FDM Additive Technology [PDF]

open access: yesSensors
Fused Deposition Modeling (FDM), also known as Fused Filament Fabrication (FFF), is a widely used additive manufacturing (AM) method for thermoplastic materials due to its low cost, accessibility, and ability to produce fully functional machine parts ...
Anna Bujarska   +2 more
doaj   +2 more sources

In Situ Measurement and Reconstruction Technology of Cylindrical Shape of High-Precision Mandrel [PDF]

open access: yesMicromachines, 2023
The technology of in situ measurement of cylindrical shapes is an important means of improving the surface machining accuracy of cylindrical workpieces.
Hanwei Xu   +4 more
doaj   +2 more sources

Investigating the impact of drill material on hole quality in jute/palm fiber reinforced hybrid composite drilling with uncertainty analysis [PDF]

open access: yesHeliyon
This study presents a method for modelling, predicting, and evaluating the impact of drill materials on the drilling process of hybrid palm/jute polyester composites, with the aim of enhancing hole quality regarding delamination, circularity, and ...
Mohamed Slamani   +7 more
doaj   +2 more sources

Experimental study on the influence of lapping plate materials on the quality of both sides cylindrical rollers machining [PDF]

open access: yesScientific Reports
The both-sides machining method can obtain high precision cylindrical rollers, but there is a drawback that the lapping plate is easy to wear, which restricts further improvement in the quality of rollers machining.
Tianchen Zhao   +7 more
doaj   +2 more sources

Concept and architecture of a new apparatus for cylindrical form measurement with a nanometric level of accuracy [PDF]

open access: yes, 2012
In relation to the industrial need and to the progress of technology, Laboratoire National de M´etrologie et d’Essais (LNE) would like to improve the measurement of its primary pressure standards, spherical and flick standards.
DAMAK, Mohamed   +4 more
core   +15 more sources

A Method for Measurement of Workpiece form Deviations Based on Machine Vision

open access: yesMachines, 2022
Machine vision has been studied for measurements of workpiece form deviations due to its ease of automation. However, the measurement accuracy limits its wide implementation in industrial applications.
Wei Zhang   +4 more
doaj   +1 more source

Relationship of aniseikonia with differences of diopter and axial length in myopia patients

open access: yesDi-san junyi daxue xuebao, 2022
Objective To explore the relationship of aniseikonia with differences of diopter and axial length in myopia patients, and the possible factors causing aniseikonia.
LIU Meng, DAI Cheng, LI Binzhong
doaj   +1 more source

A Hybrid Greedy Sine Cosine Algorithm with Differential Evolution for Global Optimization and Cylindricity Error Evaluation

open access: yesApplied Artificial Intelligence, 2021
Sine-cosine algorithm (SCA) has found a widespread application in various engineering optimization problems. However, SCA suffers from premature convergence and insufficient exploitation.
Qijun Li   +4 more
doaj   +1 more source

Rotation Accuracy Analysis of Aerostatic Spindle Considering Shaft’s Roundness and Cylindricity

open access: yesApplied Sciences, 2021
The rotation accuracy of the aerostatic spindle can easily be affected by shaft shape errors due to the small gas film clearance. Thus, the main shaft shape errors with the largest scale—that is, the roundness and cylindricity errors—are studied in this ...
Guoqing Zhang   +5 more
doaj   +1 more source

Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil

open access: yesHortScience, 2021
Carrots (Daucus carota L. var sativus) in the midwestern United States are generally raised commercially on sandy-loam or muck soils. Some smaller growers may not have the luxury of an ideal soil type, so raised beds are often recommended to improve ...
Charlie L. Rohwer
doaj   +1 more source

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