Search Results - "Chun-Hong Park"

Estimation of friction heat in a linear motion bearing using Box–Behnken design by Jang, Sung-Hyun, Khim, Gyungho, Park, Chun-Hong

“…Heat is generated in a linear motion bearing (LMB) during high velocity movement of a linear motion table. This heat causes deformation of the guide rail and…”
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Linear ball guide design optimization considering stiffness, friction force, and basic dynamic load rating using particle swarm optimization by Tong, Van-Canh, Khim, Gyungho, Park, Chun-Hong, Hong, Seong-Wook

“…Linear-motion ball guides are one of the most common supporting elements in machine tools. Their design optimization is highly crucial for engineers and users…”
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Tool wear control in single-crystal diamond cutting of steel by using the ultra-intermittent cutting method by Song, YoungChan, Nezu, Kentaro, Park, Chun-Hong, Moriwaki, Toshimichi

“…Excessive tool wear is a major drawback to the ultraprecision cutting of steel with geometrically defined single-crystal diamond tools. This paper presents a…”
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A three-probe system for measuring the parallelism and straightness of a pair of rails for ultra-precision guideways by Hwang, Jooho, Park, Chun-Hong, Gao, Wei, Kim, Seung-Woo

“…This paper describes a three-probe system that can be used to measure the parallelism and straightness of a pair of rails simultaneously. The parallelism is…”
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Mirror finishing of Co–Cr–Mo alloy using elliptical vibration cutting by Song, YoungChan, Park, Chun-Hong, Moriwaki, Toshimichi

“…The biocompatibility and fatigue strength of Co–Cr–Mo alloy are excellent, making it suitable for the use in artificial joints. The head of an artificial joint…”
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Estimation method for errors of an aerostatic planar XY stage based on measured profiles errors by Hwang, Jooho, Park, Chun-Hong, Kim, Seung-Woo

“…This paper describes a method for estimating the geometric errors of an aerostatic planar XY stage. The method calculates two-dimensional (2D) position errors…”
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A linear air bearing stage with active magnetic preloads for ultraprecise straight motion by Ro, Seung-Kook, Kim, Soohyun, Kwak, Yoonkeun, Park, Chun Hong

“…In this paper, we propose a linear motion stage designed with magnetically preloaded air bearings. The magnetic actuators for preloading air bearings were…”
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Effect of frictional heat generation on the temperature distribution in roller linear motion rail surface by Cheng, De-Jun, Park, Je-Hong, Suh, Jeong-Se, Kim, Su-Jin, Park, Chun-Hong

“…The temperature distribution in roller Linear motion (LM) rail surface heated with moving frictional heat source was investigated experimentally and…”
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Real-time thermal error prediction and compensation of ball screw feed systems via model order reduction and hybrid boundary condition update by Cao, Lei, Park, Chun-Hong, Chung, Sung-Chong

“…Thermal deformation of a ball screw is a quasi-static process and incurs positioning error. To obtain a rapid prediction model to compensate for this…”
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Explicit modeling and investigation of friction forces in linear motion ball guides by Oh, Kwang-Je, Khim, Gyungho, Park, Chun-Hong, Chung, Sung-Chong

“…Friction force of the linear motion ball guide (LMBG) with preload is important to predict the mechanical efficiency, thermal deformation, and stiffness…”
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Construction and validation of a theoretical model of the stiffness matrix of a linear ball guide with consideration of carriage flexibility by Tong, Van-Canh, Khim, Gyungho, Hong, Seong-Wook, Park, Chun-Hong

“…•A new analytical model is developed for stiffness matrix of a linear ball guide.•Carriage flexibility is considered using a new finite element model.•Changes…”
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Fast flexible multibody dynamic analysis of machine tools using modal state space models by Kim, Chang-Ju, Oh, Jeong-Seok, Park, Chun-Hong, Lee, Chang-Ho

“…Digital twins of machine tools are widely used for the validation and optimization of part programs. However, implementing flexible body dynamics in digital…”
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A rotary stage in a vacuum using an air bearing by Khim, Gyungho, Park, Chun Hong

“…We present a design for a precision rotary air-bearing stage that can be used as a positioning system in vacuum applications, and evaluate its performance. The…”
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Analysis and Improvement of Motion Accuracy of Hydrostatic Feed Table by Shamoto, Eiji, Park, Chun-Hong, Moriwaki, Toshimichi

“…A new model is developed to analyze motion accuracy of hydrostatic feed tables and an algorithm is proposed to improve their accuracy. Relationship between…”
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Modelling vibration transmission in the mechanical and control system of a precision machine by Kim, Chang-Ju, Oh, Jeong-Seok, Park, Chun-Hong

“…The relative vibration between tool and workpiece factors significantly to the performance of a precision machine. This paper develops a model for predicting…”
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Prediction and compensation of motion accuracy in a linear motion bearing table by Khim, Gyungho, Park, Chun Hong, Shamoto, Eiji, Kim, Seung Woo

“…In the present research, a corrective machining algorithm is introduced to improve the motion accuracy of linear motion bearing tables. The algorithm commences…”
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Precision evaluation of surface form error of a large-scale roll workpiece on a drum roll lathe by Lee, Jung Chul, Shimizu, Yuki, Gao, Wei, Oh, JeongSeok, Park, Chun Hong

“…•Surface form error of a roll over a length of 1700mm was evaluated on machine.•An improved reversal operation was proposed for error form measurement of the…”
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A Method of Calculating Motion Error in a Linear Motion Bearing Stage by Khim, Gyungho, Oh, Jeong Seok, Park, Chun Hong

“…We report a method of calculating the motion error of a linear motion bearing stage. The transfer function method, which exploits reaction forces of individual…”
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Three-face step-diagonal measurement method for the estimation of volumetric positioning errors in a 3D workspace by Bui, Chinh B., Hwang, Jooho, Lee, Chan-Hong, Park, Chun-Hong

“…In this paper, it is demonstrated that volumetric positioning errors can be calculated by measuring the displacements of three face step-diagonals and three…”
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Measurement of multi-degree-of-freedom error motions of a precision linear air-bearing stage by Gao, Wei, Arai, Yoshikazu, Shibuya, Atsushi, Kiyono, Satoshi, Park, Chun Hong

“…This paper describes the measurement of straightness error motions (vertical straightness and horizontal straightness) and rotational error motions (pitch, yaw…”
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