Results 31 to 40 of about 8,730,293 (397)

Characterization and Evaluation of Rotation Accuracy of Hydrostatic Spindle under the Influence of Unbalance

open access: yesShock and Vibration, 2020
The paper studies the characterization and evaluation technology of rotation accuracy of hydrostatic spindle under the influence of unbalance. The dynamic model of the motion error of the hydrostatic spindle is established based on the dynamic parameters.
Dongju Chen, You Zhao, Jingfang Liu
doaj   +1 more source

Optical equipment for measuring deformation of machine tool components [PDF]

open access: yes, 2016
This paper describes the possibilities of measuring deformation of machine tool components based on monitoring change in the optical beam path. Deformation is evaluated relatively between an optical beam source and a sensing element.
Chládek Š.   +3 more
core   +1 more source

Evaluation of the influence of laser quenching mode parameters on the quality of the surface and surface layer of machine parts (overview) [PDF]

open access: yesОмский научный вестник
This review provides an assessment of the influence of the parameters of the laser hardening mode on the quality of the surface and the surface layer.
S. V. Petrochenko   +3 more
doaj   +1 more source

Modelling of cutting process impact on machine tool thermal behaviour based on experimental data [PDF]

open access: yes, 2017
Achieving high workpiece accuracy is a long-term goal of machine tool designers. There are many causes of workpiece inaccuracy, with thermal errors being the most dominant.
Horejš O., Mareš M.
core   +1 more source

Development of comprehensive performance testing technology for motorized spindle

open access: yesAdvances in Mechanical Engineering, 2018
The comprehensive performance test of motorized spindle will contribute to improve the machining quality of machine tool. But existing standards for testing the performance of motorized spindle are limited to test its partial static and dynamic ...
Junwen Wang   +5 more
doaj   +1 more source

Digital Twin Modeling Enabled Machine Tool Intelligence: A Review

open access: yesChinese Journal of Mechanical Engineering
Machine tools, often referred to as the “mother machines” of the manufacturing industry, are crucial in developing smart manufacturing and are increasingly becoming more intelligent.
Lei Zhang, Jianhua Liu, Cunbo Zhuang
semanticscholar   +1 more source

Tangential mechanical properties analysis of cylindric elastoplastic contact model

open access: yesAdvances in Mechanical Engineering, 2022
An elastoplastic contact model of two cylinders is proposed in this paper. The crossing angle of two cylinders axes is introduced into the contact model.
Tieneng Guo   +4 more
doaj   +1 more source

Effect of Retainer Materials on Efficiency of Micro- Traction-Drive Utilizing Angular Contact Ball Bearings

open access: yesTribology Online, 2006
Micro-Traction-Drive is made by modified angular contact ball bearings. It is developed for the purpose of transmitting high torque with small drive size.
Isamu Shiotsu   +3 more
doaj   +1 more source

Effects of Cooling Systems on the Thermal Behaviour of Machine Tools and Thermal Error Models

open access: yesJournal of Machine Engineering, 2020
Today, cooling systems are increasingly applied to the structure of machine tools (MT). Unfortunately, to date there have been few efforts to precisely control these cooling systems, which inhibits the full utilisation of their potential to improve MT ...
Martin Mareš   +4 more
doaj   +1 more source

Finite element study of displacement controlled fretting in cylinder contact with different axis crossing angles

open access: yesAdvances in Mechanical Engineering, 2022
There is inevitably an angular offset during contact of mechanical structures such as roller bearings or gears. Most of the previous contact models involve the contact between two parallel cylinders.
Tieneng Guo, Ruguo Ji, Yunfei Ma
doaj   +1 more source

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