• Title, Summary, Keyword: manufacturing process

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Manufacturing Process and Technology of Korean Costumes Made of Fur and Loather (우리나라 모피와 피혁 복식의 제작과정과 기술)

  • An, Bo-Yeon;Hong, Na-Young
    • Journal of the Korean Society of Costume
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    • v.58 no.8
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    • pp.63-73
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    • 2008
  • From the ancient Korea to the late Joseon Korean fur and leather had been preferred in and out of Korea for their good quality and excellent manufacturing skill. Since Unified Silla (A.D.676${\sim}$A.D.936) Korean fur and leather were manufactured divisionally by workmen specialized in materials and products, and such manufacturing process was succeeded to Goryeo and Joseon. Manufacturing of fur and leather was consisted of as follows: hunting and butchering - peeling - beating with a paddle and removing fat - oil manufacturing - drying - tanning, then cutting and sewing, and there was a special caring method. In order to make good fur and leather, each process of manufacturing needed particular techniques and all available methods were tried to have tender fur and leather by using smoking, excrement, lime, vegetable tannin and even cerebral liquid. And also required mouth-chewing and hand-pounding with a lot of time and of labor Keeping furs resilience and flexibility, sowing several skins together, even when the after-all-process skin was converted into clothes, was much more difficult than sewing fabric. Thus, the manufacturing cost was as much expensive as skin materials, and the volume of manufacturing of fur and leather was also limited. Therefore, fur and leather must have been popular for scarcity value in the manufacturing process, and this scarcity must have caused an extreme luxury of fur.

Manufacturing strategy and change programs of Korean firms (한국제조기업의 생산전략과 생산혁신활동)

  • 이승규;김진섭
    • Korean Management Science Review
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    • v.13 no.1
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    • pp.135-156
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    • 1996
  • The purpose of this paper is to study the links between manufacturing strategy and change programs of manufacturing firms in Korea. The nature of our analysis is more descriptive than normative or confirmative. First, we investigate the linkage between manufacturing strategy, manufacturing capability, change programs and performance measurement systems. Secondly, we intend to explore an empirical typology of manufacturing strategy and change programs. The initial findings of the study are as follows: Linkage between manufacturing strategy and change programs of manufacturing firms was not apparent. Flexibility as a strategic priority is positively related to the innovative change programs. There are two distinctive strategies of manufacturing firms in Korea, namely, quality strategy and balanced strategy. We identified three types of change programs, which are incremental change, administrative innovation, and process innovation. Incremental change group has represented low factor score in the change program dimensions. The firms in administrative innovation group mainly depend on information systems and business reengineering. Korean manufacturing firms seem to pursue process improvement by trying simultaneously incremental change in the process, managerial process improvement, and a little bit of innovative change. Performance variable utilization of the firms are not significantly different along with manufacturing strategies and change programs. We found, however, learning and improvement performance dimension is significantly related to flexibility variables. Process innovation group marked high score in usage of learning and improvement indices. The findings of this study seem to have various implications on realigning the manufacturing strategy, change programs, and performance systems in Korean firms.

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Verification of Manufacturing Process of PSC Box Girder Bridge Segment by 3D Simulation (3차원 시뮬레이션을 활용한 PSC 박스거더교 세그먼트 제작 공정의 검증)

  • Kim, Min-Seok;Son, Heung-Rak;Lee, Kwang-Myong;Park, Young-Ha;Park, Min-Seok
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • pp.235-240
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    • 2008
  • PSC box girder bridges are built through the repetitive manufacturing process of concrete segment. However, during the initial segment manufacturing stage, design change may occur frequently due to design errors and interferences between components, resulting in the extension of segment manufacturing period. This paper aims to verify the manufacturing process of PSC box girder segment by 3D simulation technique. All the components of a segment were modelled and assembled by simulation technique and then, some design errors were found and revised appropriately to optimize the manufacturing process of segment. Consequently, 3D simulation technique would be promising to improve the quality of the segment and to reduce its manufacturing time and cost.

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An integrated framwork for a cellular manufacturing system (셀 생산 시스템의 통합 구조)

  • 이노성;임춘우
    • 제어로봇시스템학회:학술대회논문집
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    • pp.89-92
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    • 1997
  • The objective of this paper is to provide an alternative framework for the integration of process planning and scheduling in cellular manufacturing. The concept of an integrated cellular manufacturing system is defined and the system architecture is presented. In an integrated cellular manufacturing system, there are three modules : the process planning module, the manufacturing-cell design module, and the cell-scheduling module. For each module, the tasks and their activities are explained.

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A Study on the relations among the Feature, Function, and Manufacturing Process to integrate the Part Design and Process Planning in the Early Design Stage. (제품개발 초기단계의 제품설계와 공정설계의 통합을 위한 특징형상과 의도기능 및 가공 공정간의 상관 관계에 관한 연구)

  • 임진승;김용세
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.540-545
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    • 2002
  • The tight integration of the part design and process planning is very effective to high quality product development and cost effective manufacturing. Moreover, the integration in the early design stage, that is, the integration of the conceptual design and the conceptual process planning may take a big impact with the forecasting the alternative of the design and manufacturing. In this paper, the real field parts are studied about the relations among the Feature, Function, and Manufacturing Process taking the style of reverse engineering method, to found the base of the systematic computer system for the integrated product design and manufacturing process planning.

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Petri-Nets Modeling and Performance Evaluation of Optical-components Manufacturing System (광 부품 조립 시스템의 모델링과 성능평가)

  • 김영호;김지한;정승권;배종일;이만형
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • pp.491-495
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    • 2002
  • In the paper, a Visual factory model for a optical-components manufacturing process is built. The optical-components manufacturing process is composed of 3 operation processes; optical sub assembly process, package assembly process, and fiber assembly process. Each process is managed not a batch mode, which is one of most popular manufacturing styles to produce a great deal of industrial output, but though a modular cell. In the processes, a modular cell has to be processed independently of the other cells. Optimization for the composition of assembly cell in the optical-components system is made by the Visual factory model.

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A Study on Manufacturing Temporary Platform Structure Using Press Forming Processes (프레스 가공 공정을 이용한 가설구조물 제조에 관한 연구)

  • Park, Joon-Hong;Lee, Jae-Sup;Lee, Sung-Keun;Kim, Hyun-Soo;Sung, Ki-ln
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.6 no.4
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    • pp.92-97
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    • 2007
  • A temporary structure is a framework of metal poles and planks, used as a working platform from which building repairs or construction can be carried out safety. The manufacturing process of the existing model consumes a many hour. So, it is modified manufacturing process. In this study, it is attempted to find out the shape of modified working platform considering manufacturing process and using Taguchi method, and it reduces production process. The design parameters are defined to discribe shape of model. As a result of the shape design, maximum Von-Mises stress and displacement considering a safety factor were satisfied with CTEA (Construction Temporary Equipment Association of Korea) standard.

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A Study on the Standardization of Fuse Process for Automation of Manufacturing (공장자동화를 위한 신발갑피 Fuse공정 표준화 설계 연구)

  • Kim, Hyun-Hee;Lee, Kyung-Chang
    • Journal of the Korean Society of Industry Convergence
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    • v.22 no.2
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    • pp.235-241
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    • 2019
  • The shoe manufacturing process is very low compared to other industries due to the labor-intensive process. As automation and smart factories are becoming more and more automated, changes in the shoe manufacturing process are also needed. In this paper, we want to standardize the fuse manufacturing process by modularizing it. First, we defined the terms of shoeupper and fuse process, the shoe upper fuse process by function and classified it as a modular process. The fuse process can be modularized with pattern supply module, pattern recognition module, pattern laminate module, pattern waiting module, adhesion module, heat pressing module, transmission module, etc.

Study on Drawing Analysis of an Automotive Front Door and Stamping Die Manufacturing Process (프런트 도어의 드로잉 공정해석과 프레스 금형 제작 공정에 관한 연구)

  • Park, Yong-Guk
    • Transactions of Materials Processing
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    • v.7 no.6
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    • pp.586-593
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    • 1998
  • In recent automotive industries there has been significant increase in applications of computer simulation to the manufacturing of stamping dies for inner and outer body panels which greatly affect durability and aesthetic quality of automobiles. Enhancement of die quality and reduction of total die manufacturing time and consequently manufacturing cost are the visible outcome. However to successfully apply the result of simulation by a commercial package to the die manufacturing development of an optimal die manufacturing process is required upon the completion of analysis of forte and shortcoming of available sheet metal forming softwares. Based on the results of numerical analysis of front door outer panel forming. this paper evaluates the applicability of simulation results to the real die manufacturing for automotive body panels. Also it attempts to select an optimal die manufacturing process including design machining and tryout. Lastly it discusses the expected effects by adopt-ing the selected process in a real stamping die manufacturing facility.

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Morphological Analysis Study for the Development of DB on the Medicinal Herbs Manufacturing Process - with focus on the manufacturing method of Rehmanniae radix - (본초 제조 공정의 DB화를 위한 형태소 분석 연구 - 숙지황 제조 공정을 중심으로 -)

  • Kim, Thaeyul;Kim, Kiwook;Kim, Byungchul;Lee, Byungwook
    • Journal of Society of Preventive Korean Medicine
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    • v.20 no.1
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    • pp.111-124
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    • 2016
  • Objectives : Treatment method using drugs has already been used in Korean medicine for a long time. Moreover, database has been developed and utilized for more efficient management of the treatments that use drugs. Most of such database related to knowledge on drugs is composed of origin, efficacy, temperament, ingredients and examples of application of the standardized drugs. Communication with knowledge information in other specialized areas is also accomplished by using the efficacies and ingredients with the drugs. In this study, we aimed to make data structure of the terminologies that represent the manufacturing process of herbs. However, in spite of the fact that the manufacturing process of the drugs imparts effect on their efficacies and ingredients, details of the manufacturing processes are quite limited to simple text sentences, thereby resulting in substantially lower level of utilization and difficulties in systematic researches on various factors included in the manufacturing processes in comparison to other knowledge on drugs. Methods : This Study extracted the factors necessary in the development of database by executing morphological analysis of the manufacturing process of herbs. Results : The factors are 'Order', 'Act', 'Raw material', 'Tools', 'Supporting materials', 'Intensity', 'Duration Time', 'Interval', 'Focus', 'Repetition Number', 'Untill'. We were able to tell the difference of the manufacturing process with a simple structured query language and the factors. Conclusions : Morphological analysis of medicinal herbs manufacturing Process contributes to standardization with information of the manufacturing process. And it helps to creates a quality management system through the Database.