Results 21 to 30 of about 87,256 (241)

Trajectory error estimation to circular arc interpolation cutter path of machining center due to acceleration/deceleration motions of interpolation segments

Nihon Kikai Gakkai ronbunshu, 2019
From the machining center (MC) user’s point of view, the author proposes a practical approach to estimating the trajectory errors of a circular arc interpolation cutter path produced by the NC servo characteristics for a target MC in this paper. Firstly,
Hua QIU
doaj   +1 more source

Stiffness-Oriented Placement Optimization of Machining Robots for Large Component Flexible Manufacturing System

Machines, 2022
A large component flexible manufacturing system provides more application scenarios for industrial robots, and, in turn, these robots exhibit competitive advantages in machining applications. However, the structural characteristic of low stiffness is the
Yuan Xue, Zezhong Sun, Shiwei Liu, Dong Gao, Zefan Xu   +4 more
doaj   +1 more source

Automatic polishing process of plastic injection molds on a 5-axis milling center

, 2009
The plastic injection mold manufacturing process includes polishing operations when surface roughness is critical or mirror effect is required to produce transparent parts.
Pessoles, Xavier, Tournier, Christophe
core   +2 more sources

Improving Linear Weld Density in Ultrasonically Consolidated Parts [PDF]

, 2006
Ultrasonic consolidation is a novel additive manufacturing process with immense potential for fabrication of complex shaped three-dimensional metallic objects from metal foils.
George, J., Ram, G. D. Janaki, Robinson, C., Stucker, B. E., Yang, Y.   +4 more
core   +1 more source

An Analytical Model for Repositioning of 6 D.O.F Fixturing System [PDF]

, 2012
Lien vers la version éditeur: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8749247&fulltextType=RA&fileId=S2257777712000164Dimensional errors of the parts from a part family cause the initial misplacement of the workpiece on ...
ANTOINE, Jean-François, BUTT, Sajid-Ullah, MARTIN, Patrick   +2 more
core   +7 more sources

A methodology for the lightweight design of modern transfer machine tools [PDF]

, 2018
This paper deals with a modern design approach via finite elements in the definition of the main structural elements (rotary table and working unit) of an innovative family of transfer machine tools. Using the concepts of green design and manufacture, as
Cavalli, Omar, Croccolo, Dario, De Agostinis, Massimiliano, Fini, Stefano, Olmi, Giorgio, Robusto, Francesco, Vincenzi, Nicol\uf2   +6 more
core   +2 more sources

Estimating temperature distribution and heat quantity of spindle shaft for machining centers

Journal of Advanced Mechanical Design, Systems, and Manufacturing
The thermal issue of spindles for machining centers is still fundamentally unresolved. Thermal problems due to increased temperature of the spindle shaft lead to thermal displacement of the tool axis and an increase in friction torque, consequently ...
Shingo KAJIKAWA, Sho MORITA, Hiroshi USUKI, Naohiko SUGITA   +3 more
doaj   +1 more source

Estimation of volumetric accuracy based on linear error motion in machining centers

Nihon Kikai Gakkai ronbunshu, 2019
ISO230-1, an international standard of test code for machine tools, has been revised for the first time in 16 years. A volumetric accuracy for three linear axes was defined as a term of multi-axes motion in the revision of ISO 230-1.
Akinori SAITO, Hayato AKAIKE
doaj   +1 more source

Machining Center Opportunistic Maintenance Strategy Using Improved Average Rank Method for Subsystem Reliability Modeling

Applied Sciences
Machining centers are complex systems that consist of multiple subsystems. When maintaining these subsystems, considering opportunistic maintenance can prevent frequent shutdowns during the machining process and reduce costs.
Yingzhi Zhang, Minqiao Song, Wei Wu, Feng Han   +3 more
doaj   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source