Tilt Angle of Hydrostatic Spindle Influenced by Microscale Effects

Machining error in machining processes arises due to several factors. The tilt angle of the spindle of the machine tool is one of the important factors that directly affect the shape error, surface quality, and roughness of the machined part. In order to better analyze the effect of microscale effec...

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Published in:Tribology transactions 2020-01, Vol.63 (1), p.28-37
Main Authors: Chen, Dongju, Gao, Xue, Zha, Chunqing, Pan, Ri, Fan, Jinwei
Format: Article
Language:English
Subjects:
Bearings
Chairs
hydrostatic spindle
Machine tools
Machining
Microscale
Reynolds equation
Slip
static performance
Stiffness
Surface properties
tilt angle analysis
Velocity
velocity slip
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cited_by cdi_FETCH-LOGICAL-c338t-7d52c74c1c0b5c4325422a1a47d143b0cb0e7edd8e5f2ddf7ba4c547fcfe4b573
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container_end_page 37
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container_title Tribology transactions
container_volume 63
creator Chen, Dongju
Gao, Xue
Zha, Chunqing
Pan, Ri
Fan, Jinwei
description Machining error in machining processes arises due to several factors. The tilt angle of the spindle of the machine tool is one of the important factors that directly affect the shape error, surface quality, and roughness of the machined part. In order to better analyze the effect of microscale effects on the tilt angle of a hydrostatic spindle, a fluid control model at the microscale is introduced into the traditional Reynolds equation. The static performance characteristics of hydrostatic bearings with four and eight pads under the influence of velocity slip are obtained. The results show that the existence of velocity slip improves the stiffness of the bearing. However, the influence of velocity slip on the tilt angle is obvious, and the tilt angle decreases as the increase of velocity slip. The experimental results verify the existence of velocity slip at the microscale indirectly and provide a theoretical basis for the study of the performance of liquid hydrostatic bearings at the microscale.
doi_str_mv 10.1080/10402004.2019.1654053
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source Taylor and Francis Science and Technology Collection
subjects Bearings
Chairs
hydrostatic spindle
Machine tools
Machining
Microscale
Reynolds equation
Slip
static performance
Stiffness
Surface properties
tilt angle analysis
Velocity
velocity slip
title Tilt Angle of Hydrostatic Spindle Influenced by Microscale Effects
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