• 제목/요약/키워드: Manufacturing Techniques

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제품의 리스크 분석 기법에 관한 연구: HuBRA 기법 개발 (A Study on the Risk Analysis Techniques for Products: Development of HuBRA (Human Behavior Risk Analysis))

  • 박경수;조일행;김운회
    • 한국안전학회지
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    • 제18권3호
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    • pp.141-148
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    • 2003
  • Since the introduction of The Product Liability Law, effective since July 2002, more and more companies and end-users have been giving their attention to the safety of products. A number of existing risk analysis techniques are being implemented to manufacturing sites. However, they have certain restrictions such as incurring different techniques that are to be implemented at each stage of the product development. This is due to their domain of the analysis differing from one to another. Moreover, the results of these analyses are not specific enough, and are subject to further revision. This study proceeds to look at various examinations undertaken on the existing risk analysis techniques. Through implementing them on certain products, investigations on the strengths and weaknesses were ascertained. This has allowed improvements on the existing techniques to be achieved as tell as the development of a new risk analysis technique, 'HuBRA(Human Behavior Risk Analysis)'. Finally the new technique was implemented on products to confirm its effectiveness.

주성분 분석을 이용한 고객 공정의 불량률 예측 모형 개발 (Development of Prediction Model using PCA for the Failure Rate at the Client's Manufacturing Process)

  • 장윤희;손지욱;이동혁;오창석;이득중;장중순
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제16권2호
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    • pp.98-103
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    • 2016
  • Purpose: The purpose of this paper is to get a meaningful information for improving manufacturing quality of the products before they are produced in client's manufacturing process. Methods: A variety of data mining techniques have been being used for wide range of industries from process data in manufacturing factories for quality improvement. One application of those is to get meaningful information from process data in manufacturing factories for quality improvement. In this paper, the failure rate at client's manufacturing process is predicted by using the parameters of the characteristics of the product based on PCA (Principle Component Analysis) and regression analysis. Results: Through a case study, we proposed the predicting methodology and regression model. The proposed model is verified through comparing the failure rates of actual data and the estimated value. Conclusion: This study can provide the guidance for predicting the failure rate on the manufacturing process. And the manufacturers can prevent the defects by confirming the factor which affects the failure rate.

제조 빅데이터 시스템을 위한 효과적인 시각화 기법 (Effective visualization methods for a manufacturing big data system)

  • 류관희
    • Journal of the Korean Data and Information Science Society
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    • 제28권6호
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    • pp.1301-1311
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    • 2017
  • 제조 빅데이터 시스템은 제조 전 공정에서 관련된 4M 데이터의 수집, 저장, 관리, 예측적 분석을 통해 선제적 제조 활동 개선이 가능한 의사결정을 지원하고 있다. 이러한 시스템에서 데이터의 효율적인 관리와 운영을 위해 데이터를 효과적으로 시각화하는 것이 무엇보다도 중요하다. 본 논문에서는 제조 빅데이터 시스템에서 데이터 수집, 분석 및 예측 결과를 효과적으로 보여 주기 위해 사용가능한 시각화 기법을 제시한다. 본 논문에서 제시된 시각화 기법을 통해 제조 현장에서 발생하는 문제를 보다 손쉽게 파악할 수 있었을 뿐만 아니라 이들 문제를 효과적으로 대응할 수 있어 매우 유용하게 사용될 수 있음을 확인하였다.

Logistics Capability, Logistics Outsourcing and Firm Performance in Manufacturing Companies in Pakistan

  • AZIZ, Abdul;MEMON, Javed Ahmed;ALI, Shuaib
    • The Journal of Asian Finance, Economics and Business
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    • 제7권8호
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    • pp.435-444
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    • 2020
  • This study investigates the role of logistics capability and logistics outsourcing on the performance of manufacturing companies in Pakistan. It examines how logistics capability affects firm's performance, why outsourcing is essential and how firms benefited if they outsource the service rather than establishing their own logistics capability. This research is based on a survey using structured a questionnaire to collect the primary data. The target population is logistics specialists of manufacturing companies in Pakistan with head offices based on Karachi, that have their own logistics or outsource their logistics. The questionnaire has been distributed to 500 respondents in 113 manufacturing companies in Pakistan. Confirmatory factor analysis has been used as statistical techniques to check the factor loading of the components, and SEM (Structural Equation Model) is used to check the impact of logistics capability on firm's performance as well as the role of logistics outsourcing as a mediator. The findings of the research suggest logistics capability has positive impact on the performance of the manufacturing companies in Pakistan, and logistics capability has also an impact on logistics outsourcing. On the other hand, the study found that logistics outsourcing has no significant impact on the manufacturing companies in Pakistan.

Study on Method of Expressing Surface of Furniture and Wooden Accessories during Modeling Process using Graphic Program - Focused on 3ds MAX and V-ray -

  • Lee, Jae-Young;Choi, Ki;Cho, Won-Hee
    • 한국가구학회지
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    • 제20권3호
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    • pp.232-238
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    • 2009
  • In designing furniture and interior accessories, a computer graphic program is normally used over the whole process of manufacturing furniture from idea stage to actual manufacturing stage. It especially play an important role in the modeling process which comes before actual manufacturing stage. in such modeling process, the most important part is expression of quality of material used and surface treatment method. Expression of material quality of wood and surface finishing just like an actual picture enable the designers to analogize the feeling of furniture and interior accessories more exactly over the whole process of actual manufacturing and such a result has positive effect on development field of furniture and accessories.

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OLED display manufacturing by Organic Vapor Phase Deposition

  • Marheineke, B.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.1676-1681
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    • 2006
  • We report on Organic Vapor Phase Deposition $(OVPD^{(R)})$ an innovative deposition technology for organic light emitting device (OLED) and organic semiconductor manufacturing. The combination of $OVPD^{(R)}$ with Close Coupled Showerhead (CCS) technology results in manufacturing equipment with vast potential for cost effective manufacturing of OLED displays commercially competitive to LCD. The actual $OVPD^{(R)}$ equipment concept and design is discussed: Computational Fluid Dynamic (CFD) modeling is compared with experimental results proving the excellent controllability of the deposition process. Further other production relevant deposition properties are being reviewed e.g. high deposition rates and high organic material utilization efficiency of the $OVPD^{(R)}$ - Technology. Data from devices made by $OVPD^{(R)}$ show comparable/ superior performance to those fabricated with conventional vacuum thermal evaporation (VTE) techniques. An outlook on further potentials of $OVPD^{(R)}$ with respect to enabling advanced organic device structures is given.

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프렌치 후드 제작에 관한 고찰 I (A Study on the Restoration of Frenchhood)

  • 김경희;문윤경
    • 복식문화연구
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    • 제11권2호
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    • pp.243-252
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    • 2003
  • The study was designed to review the changes in designs and the manufacturing methods of french hood, one of the headdresses which play an important role in showing the appearance of costume, to understand design expression techniques through manufacturing of the head dress of the western costumes, and to provide materials to exert creativity for new designs. Based on literature review and portrait study, 1 manufactured a frenchhood. I set the study cope as from the late 15 century when frenchhood was used for the first time, to the mid 16 century. For the frenchhood selected, 1 examined the hair style, the characteristics of the french hood, and the pattern first, and proceeded to manufacturing. 1 used velvet and silk for the textile as explained in the literature. And, 1 purchased such similar ornaments as shown in the pictures, making the color so similar to the original to the most. Dimensions in manufacturing were those In the literature, since the study is focusing on the reproduction of the features of the portraits. Dimensions of detailed decoration were measured using the ratio of the headdress in the portraits.

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문형 5축 머시닝센터의 기하학적 오차해석 및 가상가공 시스템 개발 (Development of a Geometric Error Analysis and Virtual Manufacturing System for Gantry-Type 5-Axis Machining Centers)

  • 윤태선;조재완;김석일;곽병만
    • 한국정밀공학회지
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    • 제15권10호
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    • pp.172-179
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    • 1998
  • To quickly determine the effect of the substitute component on the machine's performance is very important in the design and manufacturing processes. And minimizing machine cost and maximizing machine quality mandate predictability of machine accuracy. In this study, in order to evaluate the effects of the component's geometric errors and dimensions on the machining accuracy of gantry-type 5-axis machining centers, a geometric error analysis and virtual manufacturing system are developed based on the mathematical model for the shape generation motion of machine tool considering the component's geometric errors and dimensions, the solid modeling techniques and so on.

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유연생산(柔軟生産) 시스템 (F.M.S.: Flexible Manufacturing Systems)의 경제성(經濟性) 평가(評價)에 대한 문헌(文獻) 고찰(考察) (A Literature Survey on Economic Justification of Flexible Manufacturing Systems)

  • 김성인;김승권;강석현;박태형
    • 대한산업공학회지
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    • 제13권2호
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    • pp.117-128
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    • 1987
  • A major problem in the adoption of advanced manufacturing systems such as F.M.S. (Flexible Manufacturing Systems) is the prerequisite economic justification process because of high investment needed for the acquisition and installation of F.M.S. While some of the benefits expected are readily quantifiable, others are very difficult or even impossible, using conventional method. Thus the investment in F.M.S. should be considered as a strategic decision rather than a tactical decision which concerns with only financial implications. In this paper we review papers on major justification techniques developed during thelast decade and identify the benefits of F.M.S. and describe the considerations in the justification of F.M.S. Also, we deal with the current and future research directions in justifying F.M.S.

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감도분석에 의한 제조공정연구 (A Study on the manufacturing process using the sensitivity analysis of stochastic network)

  • 박기주
    • 산업경영시스템학회지
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    • 제24권63호
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    • pp.65-77
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    • 2001
  • A more technical perspective is needed in estimating the effect of the Manufacturing Process for improving the Productivity, there are many statistical evaluation methods, convenience sampling, frequencies, histogram, QC seven tools, control chart etc. It is more important for the companies to use six sigma to reduce defective and improve the process control than the technical definition as a disciplined quantitative approach for improvement of process control and a new way of quality innovation. Process network analysis is a technique which has the potentiality for a wide use to improve the manufacturing process which other techniques can't be used to analyze effectively. It has some problems to analyze the process with feedback loops. The branch probabilities during quality inspections depend upon the number of times the product has been rejected. This paper presents how to improve the manufacturing process by statistical process control using branch probabilities, Moment Generating Function(MGF) and Sensitivity Equation.

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