Results 81 to 90 of about 2,632,024 (290)

An improved geometric error analysis method considering the variety of sensitivities over working space

open access: yesAdvances in Mechanical Engineering, 2018
Machine tool accuracy analysis has become increasingly important since accuracy as the major parameter of a machine is to a large extent determined by geometric accuracy design. In order to improve the comprehensiveness and veracity of geometric accuracy
Xiaojian Liu   +5 more
doaj   +1 more source

Geometric Error Measurement Techniques in CNC Machines - A Survey

open access: yes, 2015
The CNC machines are the basic requirement of whole manufacturing industries. The current demand of higher accuracy achieved on machined components is increasing rapidly.
Dobariya, Harikrushna M.
core   +1 more source

Analysis of the discontinuous Galerkin method for elliptic problems on surfaces [PDF]

open access: yes, 2013
We extend the discontinuous Galerkin framework to a linear second-order elliptic problem on a compact smooth connected and oriented surface in ℝ3. An interior penalty (IP) method is introduced on a discrete surface and we derive a priori error estimates ...
Stinner, Björn   +5 more
core   +1 more source

Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel   +2 more
wiley   +1 more source

A Method for Optimizing the Precision of a Five-Axis Machine Tool Based on Tolerance

open access: yesMachines
The tolerance of critical components in five-axis machine tools directly impacts the overall machining accuracy of the entire system. This paper presents a tolerance optimization method for machine tools that is grounded in sensitivity theory and the ...
Hongxia Yan, Jinwei Fan
doaj   +1 more source

Rotary 3D Printing With Integrated Electroplating

open access: yesAdvanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria   +5 more
wiley   +1 more source

Approach to Predict Geometric Errors for Machine Tools’ Guideways Based on Tolerance

open access: yes工程科学与技术, 2020
In the initial design stage of machine tools, only the information of tolerance of machine tools’ key components is known. Since geometric errors of machine tools can play the role of guidance for the accuracy design of machine tools, geometric errors ...
Haohao TAO, Jinwei FAN, Changjun WU
doaj  

A priori error indicator in the transformation method for problems with geometric uncertainties [PDF]

open access: yes, 2013
Version éditeur de cette publication à l'adresse suivante : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6514655To solve stochastic problems with geometric uncertainties, one can transform the original problem in a domain with stochastic ...
Mac, Duc Hung   +4 more
core   +1 more source

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar   +3 more
wiley   +1 more source

Development of machining test method for 5-axis machining centers by turn milling

open access: yesNihon Kikai Gakkai ronbunshu
In recent years, the introduction of 5-axis machining centers has been increasing in order to improve productivity. Since the 5-axis machining center has two rotary axes, some geometric errors exist, which reduces the machining accuracy.
Hiromichi ONO   +4 more
doaj   +1 more source

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