• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.9 no.1
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• pp.9-19
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• 2000

• Proceedings of the Society of Korea Industrial and System Engineering Conference
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• 2002.05a
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• pp.319-327
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• 2002

As one of the developing countries in the world trade market, we have to apply the environmental concept at the development of a product for environmentally conscious manufacturing system(ECMS). Traditionally, Production control model has been studied based on a new product manufacturing environment. However, ECMS such as a remanufacturing system should be developed and implemented for highly competitive environment in 21C. The objective of this study was to extend the research of production control model by applying it at the remanufacturing environment of ECMS and to test the applicability of current production control model at the remanufacturing environment by the simulation experimental study.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2002.05a
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• pp.415-419
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• 2002

In this study, we suggest a environmentally-conscious and dry cleaning process mechanism for the recycling of end-of-life CRT, and also develope a protype cleaning system to verify the faulty of the designed mechanism. This system accommodates the specifications of 14 ~ 32" end-of-life CRT. In experimental result, it is expected that the developed system improve the productivity up to 10% and decrease the loss rate of cleaning glass 3~4 times rather than the existing methods.hods.

• Proceedings of the Safety Management and Science Conference
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• 2000.05a
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• pp.225-239
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• 2000

The objective of ECMS(Environmentally Conscious Manufacturing Systems) is to consider environmental effects through the entire product life cycle from product development stage to design, manufacturing, supplying, using and disposing stage. Recently, environment-oriented recycling, reusing and manufacturing technologies have been researched actively in every engineering fields. In the field of chemical engineering, HHS(Health Hazard Scores) which classifies and analyzes hazardous materials in production processes has been presented. Metal cutting processes also have a lot of harmful factors, and especially hazardous components in cutting fluids have been known to have a bad effect on workers and working area. However, research works such as HHS have been little accomplished in metal cutting processes. In this research, a environmentally conscious machining process is presented by classifying hazardous components in cutting fluids, by using LCA(Life Cycle Assessments) and HHS method, and by evaluating environmental effects from cutting fluids.

• Proceedings of the KSME Conference
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• 2003.04a
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• pp.956-961
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• 2003

Recently, environmental pollution has become a significant problem in industry and many researches have been investigated in order to preserve the environment. Environmentally conscious machining and technology have more and more important position in machining process. In the milling process, the cutting fluid has greatly bad influence on the environment. In this study, the machining of blade parts(12Cr steel) using the cutting fluid, compressed cold air and oil mist etc., also, the productivity and the surface topography was improved by using new end-mil tool considering tool material and shape.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.05a
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• pp.948-951
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• 2000

This paper presents the analytical and experimental methodology for the prediction of aerosol concentration and size distribution due to cutting fluid atomization mechanism in turnining operation. The established analytical model which is based on atomization theory analyzes the cutting fluid motion and aerosol generation in machining process. The impinging and evaporation experiments were performed to know the particle size and evaporation rate of cutting fluid. The predictive models can be used as a basis for environmental impact analysis on the shop floor. It can be also facilitate the optimization of cutting fluid usage in achieving a balanced consideration of productivity and environmental consciousness.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.15 no.6
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• pp.50-57
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• 2006

The investigation of microscopic precision in high speed endmilling is necessary for machinability evaluation, and the environmentally conscious machining technology have more important position in recent machining process. The microscopic precision of workpiece is influenced by machining environments variation as cutting fluid type and lubricant method. In this study, the cutting forces according to variation of cooling and lubrication are investigated by specially designed tool dynamometer. And the surface roughness, micro hardness and residual stress are evaluated according to machining environment. The characteristics of damaged layer in environmentally conscious machining and conventional machining using cutting fluid are compared experimentally.

• Journal of the Korean Society for Precision Engineering
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• v.20 no.2
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• pp.50-57
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• 2003

This paper presents the experimental results to verify the atomization characteristics and environmental impact of cutting fluid. Even though cutting fluid improves the productivity through the cooling, Lubricating effects, environmental impact due to cutting fluid usage is also increased on factory shop floor Cutting fluid's aerosol via atomization process can be affected human health risk such as lung cancer and skin diseases. Experimental results show that the generated fine aerosol which particle size less than 10 micron appears near working tone under typical operational conditions. The aerosol concentration also exceeds NIOSH regulations. This research can be provided a basis of environmental impact analysis fur environmental consciousness.

• Transactions of the Korean Society of Machine Tool Engineers
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• v.14 no.5
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• pp.1-6
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• 2005

Machining is a one of the broadly used manufacturing process to produce the parts, products and various molds and dies. The environmental impact due to aerosol generation via atomization process is a major concern associated with environmental consciousness. This paper presents the experimental results to analyze the characteristics of cutting fluid aerosol generation in grinding process. Experimental results show that the generated fine aerosol which particle size less than 10micron appears near worker's breath zone under given operational conditions. The aerosol concentration is much higher enough to affect human health risk with its generated aerosol quantities. This quantitative analysis can be provided the basic knowledge f3r further research for environmentally conscious machining technology developments.

• The International Journal of Costume Culture
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• v.2 no.2
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• pp.31-44
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• 1999

The purpose of this study was to investigate the level of environmentally conscious consumer behavior, and to identify the influencing variables and causal relationship. Data were collected from questionnaires with 275 housewives who were residents of Seoul and Kyunggi-do. The major findings were as follows : (1) The level of environmentally conscious behavior differed significantly according to occupation, income, averaged monthly clothing expenses, residence type and residential area. (2) The consumer's clothing behavior related to the environmental consciousness differed significantly according to age, education, matrimonial status, income, average monthly clothing expenses, residence type and residential area. (3) The use of mass media differed significantly in the consumer's environmental consciousness.