• Journal of the Korean Society for Precision Engineering
• /
• v.28 no.8
• /
• pp.878-885
• /
• 2011

A kinematically-hybrid 5-axis machine tool is analyzed from the perspective of machine tool design. Its kinematic characteristics are pointed out, which should be considered during the conceptual design process. A result of the structural analysis of the machine is presented, which is performed during the detailed design process. It is also presented how we improve the thermal characteristics of the machine tool by changing the installation position of the actuators.

• Journal of the Semiconductor & Display Technology
• /
• v.20 no.2
• /
• pp.14-18
• /
• 2021

Electric Vehicle industry requires high technologies to stabilize apparatuses for the Coolant heater manufacturing. Vibrations of Leak Machine are one of the most critical factors for causing delivered of the defective product or poor inspection, which are the main reasons of the defects. In this study, the structure of the Leak Machine was analyzed through the experiment and the computer simulation to investigate the main reasons of the vibrations, and further to alter the design for the improved stability. And that design alterations were applied to the machine to identify the effects of those alterations. The result of the study shows that design alterations of the Leak Machine can effectively suppress about 97.8% of the vibrations, and further can improving the Inspection precision of the Coolant heater.

• Proceedings of the KAIS Fall Conference
• /
• 2001.11a
• /
• pp.122-125
• /
• 2001

This paper presents the usage of software package APM WinMachine for design of equipment and buildings far agricultural industries. APM WinMachine is used for engineering analysis and design of parts of machines for industry and civil engineering. In process of machine design strength calculation is reuired for optimum design. With the help of APM WinMachine software strength calculations can be done quickly and correctly. In this paper a successful case of application of APM WinMachine for design of agricultural machine is introduced.

• Journal of Electrical Engineering and Technology
• /
• v.13 no.4
• /
• pp.1596-1603
• /
• 2018

This paper presents the new design and validation process of the linear transverse flux machine of the stelzer machine for hybrid vehicle application. A linear transverse flux machine is a novel electric machine that has higher force density and power than conventional electric machine. The process concentrates on 2-dimensional and 3-dimensional analysis using equivalent magnetic circuit method considering leakage elements and it is verified by finite element analysis. Besides the force characteristics of all axis of each direction are analyzed. The study is considered by dividing the transverse flux electric excited type and the transverse flux permanent magnet excited type. Additionally three-dimensional analysis in this machine is accomplished due to asymmetric structure with another three axes. Finally, it suggests the new design and validation process of linear transverse flux machine for stelzer machine.

• Journal of the Korean Society for Precision Engineering
• /
• v.30 no.5
• /
• pp.474-479
• /
• 2013

Mass reduction of the machine tool movable parts is a tool for achieving lower energy demands of the machine tool operation. The realization of lightweight design in machine tool can be achieved by structural lightweight design and material lightweight design. In this study, topology optimization strategy was applied to design optimized structures of movable parts of 5 axis machining center. The weight of ram which has most significant influence on the stiffness of whole machine tool was reduced without stiffness deterioration. The redesigned optimized ram has 24.2% less weight while maintaining the same displacement caused by cutting force.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2006.05a
• /
• pp.477-478
• /
• 2006

This paper presents the results of miniaturized micro milling machine tool development for micro precision machining process. Finite element analysis has been performed to know the relationship between design dimensional variables and structural stiffness in terms of static, dynamic, thermal aspects. Design optimization has been performed to optimize the design variables of micro machine tool to minimize the volume, weight and deformation of machine tool structure and to maximize the stiffness in terms of static, dynamic, and thermal characteristics. This study presents the assessment of the technology incentive for the minimization of machine tool in the quantitative context of static, dynamic stiffness, thermal resistance and thus the accuracy implications.

• Journal of the Korean Society of Manufacturing Technology Engineers
• /
• v.20 no.3
• /
• pp.298-303
• /
• 2011

Recently, demand on machine tools has been increased because the machine and automobile industry is booming. Therefore, the machine tools need to have a high accuracy and productivity. To build a high precision machine tool and increase its productivity, structural analysis needs to be carried out for vibration and stiffness of the machine tool before its detail design. However, it is the fact that many manufacturers of machine tools depend on their know-how about design experience. Therefore, in this paper, the static and dynamic analysis is carried out for evaluating a horizontal CNC lathe and then, applied to its detail design. It is positive that the analysis can lead to reduction of design time and improvement of the quality of the lathe as its design proceeds.

• Journal of the Semiconductor & Display Technology
• /
• v.18 no.3
• /
• pp.88-92
• /
• 2019

Automotive industry requires high technologies to stabilize apparatuses for the EGR valve manufacturing. Vibrations of washing machine are one of the most critical factors for causing unwashed products, which are the main reasons of the defects.In this study, the structure of the washing machine was analyzed through the experiment and the computer simulation to investigate the main reasons of the vibrations, and further to alter the design for the improved stability. And the design alterations were applied to the machine to identify the effects of those alterations.The result of the study shows that design alterations of the washing machine can effectively suppress about 85% of the vibrations, and further can minimize the unwashed EGR valve.

• Korean Institute of Interior Design Journal
• /
• no.37
• /
• pp.29-38
• /
• 2003

Reyner Banham characterized the Second Machine Age as the age of domestic electronics and synthetic chemistry in opposition to the First. It means technology and science would be popularized in the Second Machine Age. The Second Machine Age began in the mid-50's in which pop culture and SF became popularized. The architects in both Machine Age choose the scientifism as the motive of architectural design. But not all of them approach to the design with the pure theory of science. This study analyses the types of scientifism in architectural design in the 1950's and the 60's based on approaches to technology which might be classified as pragmatic, radical, and pop.

• Journal of the Korean Society of Manufacturing Process Engineers
• /
• v.9 no.1
• /
• pp.8-13
• /
• 2010

The shaft surface machining is a popular machine for studying descale machine design and process in automobile industry. In this study, the descale design machine of cutting shaft surface was conducted for the detection of a tool failure in surface process. Induction harden surface is used as analyzing function to detect a sudden change in cutting process level. A preliminary stepped workpiece which had a hard condition was cut by the surface tool and a tool process obtained cutting force machine. At machine failure, the results were suddenly increased and the detailed surfaces were extremely obtained.