• Title/Summary/Keyword: Design for Manufacturing

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A Study on Design Method Using CNC in Wooden Products (CNC를 이용한 목제품 디자인 기법에 관한 연구)

  • Lee, Young-Choon
    • Journal of the Korea Furniture Society
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    • v.28 no.4
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    • pp.371-379
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    • 2017
  • This study established the scope of the main contents and interpretation of wooden product design using the CNC manufacturing technology as well as the basic concepts of which were defined, accordingly. After coming up with the definition of the CNC wood manufacturing technology from the academic point of view, a design study, using the practical CNC manufacturing technology, was conducted by analyzing and summarizing the contents of each process. In addition, data research and analysis including review on literatures and case studies of existing products were promoted besides design development through application of the design concepts, ergonomics, principle of molding, etc. Ultimately, this study suggested the step-by-step procedure in design drawing, 3D modeling, CAD/CAM data production, CNC manufacturing, and prototype completion together with figures. Through this, the study proposed a standard manufacturing guideline for wood product design using digital manufacturing technology. Base on such efforts, the advantages and points for improvement in product design using CNC manufacturing technology and the future direction of development were forwarded. Meanwhile, a prototype image that was developed through collaborative efforts between the academic circle and field workers was presented to help the case study on the wooden product design technique using CNC.

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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    • 2002.05a
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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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Product Data Model for Supporting Integrated Product, Process, and Service Design (제품, 공정, 서비스 통합 설계를 지원하는 제품자료모델)

  • Do, Nam-Chul
    • Journal of Korean Institute of Industrial Engineers
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    • v.38 no.2
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    • pp.98-106
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    • 2012
  • The current market preassure of least environmental effects of products needs companies to consider whole life cycle of their products during their design phase. To support the integrated and collaborative development of the products, this paper proposed product data model for extended Product Data Managemen (PDM) that can support integrated design of product, manufacturing process, and customer services, based on the consistent and comprehensive PDM databases. The product data model enables design, manufacturing, and service engineers to express their products and services efficiently, with sharing consistent product data, engineering changes, and both economical and environmental evaluations on their design alternatives. The product data model was implemented with a prototype PDM system, and validated through an example product. The result shows that the PDM based on the proposed product data model can support the integrated design for products, manufacturing process, and customer services, and provide an environment of collaborative product development for design, manufacturing and service engineers.

Genetic Algorithm for Designing Independent Manufacturing Cells (독립적인 생산셀 설계를 위한 유전 알고리즘)

  • Moon, Chi-Ung;Yi, Sang-Yong
    • Journal of Korean Institute of Industrial Engineers
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    • v.23 no.3
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    • pp.581-595
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    • 1997
  • The procedure of grouping the machines and parts to form cells is called manufacturing cell design. The manufacturing cell design is an important step in the development and implementation of advanced manufacturing systems. For the successful implementation of the manufacturing systems, identification of independent manufacturing cells, i.e., cells where parts are completely processed in the cell and no intercell movements, is necessary in the design phase. In this paper, we developed a mixed integer programming model and genetic algorithm based procedure to solve the independent manufacturing cells design problem considering the alternative process plans and machines duplication. Several manufacturing parameters such as, production volume, machine capacity, processing time, number of cells and cell size, are considered in the process. The model determines the process plan for parts, port families and machine cells simultaneously. The model has been verified with the numerical examples.

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A Study on the Development of Measuring System for Extra Long Roller Using Non-contact Sensor (비접촉식 센서를 이용한 초장축 롤러 측정 장치 개발에 관한 연구)

  • Kim, Woong;Lee, Choon-Man;Lee, Mun-Jae;Park, Sung-Jin
    • Journal of the Korean Society for Precision Engineering
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    • v.27 no.4
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    • pp.33-39
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    • 2010
  • Manufacturing accuracy of a precision instrument was essential to stability and efficiency of the product. Accordingly, geometrically accuracy management of precision instrument was very becoming the technique in order to design and manufacturing for machine. In this study, Measuring System is developed for extra long roller using non-contact sensor. Futhermore, It's studied by Geometric Tolerance. Exact roundness is obtained to Least Squares method from the reference circle of measured data. Measuring System is analyzed point of measurement and straightness of extra long roller is evaluated by FEM.

Using Features as the Knowledge Carrier for Cross Company Collaboration and Change Management - A design methodology for compressing lead-time from plastic part design to mold making

  • Zengzhi, Li;Qinrong, Fu;Feng, Lu Wen;Bin, Song
    • International Journal of CAD/CAM
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    • v.3 no.1_2
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    • pp.43-50
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    • 2003
  • This paper presents a methodology in which the knowledge of design intents and change requests is communicated unambiguously cross collaboration partners through features. The domain of application is focused on the plastic part design for enabling effective collaboration between the product design and plastic mold making. The methodology takes the feature-based design approach and allows design features and knowledge to be reused in plastic injection mold design. It shortens the mold design lead-time, reduces mold design efforts, and enables unambiguous and fast design change management between product and mold designers. These contribute to the reduction of product development cycle time.

Design of Manufacturing Cell based on Genetic Algorithm (유전 알고리즘에 기초한 제조셀의 설계)

  • 조규갑;이병욱
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.12
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    • pp.72-80
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    • 1998
  • In this study, a design approach based on genetic algorithm is proposed to solve the manufacturing cell design problem considering alternative process plans and alternative machines. The problem is formulated as a 0-1 integer programming model which considers several manufacturing parameters, such as demand and processing time of part, machine capacity, manufacturing cell size, and the number of machines in a machine cell. A genetic algorithm is used to determine process plan for each part, part family and machine cell simultaneously.

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Study of the Design Characteristics of Practical Flexible Manufacturing System (PFMS) (실용 자동화 실습장치 (Practical Flexible Manufacturing System)의 모듈별 사양 분석에 관한 연구)

  • Jo, Jang-Hyen
    • Journal of the Korean Society of Industry Convergence
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    • v.7 no.2
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    • pp.193-198
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    • 2004
  • This is the dissertation of the study of design characteristics about the practical flexible manufacturing system (PFMS). The basic ideas to analyze the manufacturing system which is the automatically operated is dependant on the various manufacturing procedures in factory. PFMS is the very useful equipment for students and trainee of production lines. This system is composed of hardware and software sub systems i.e. control and test unit and personal computer with software. The PFMS can be developed with design concepts and approved the capability of first article with functional tests. The PFMS module will be very useful for the manufacturing drill system in universities and practical fields. The flexible manufacturing systems have various subsystems appropriated for the final manufacturing products. Therefore the systems have the various kinds of hard wares as well as softwares. We study the software for the practical flexible manufacturing system designed in the Halla University and specially the design concept and using specification of the SCARA (Selective Compliance Assembly Robot Arm) robot which is used for the movement of the product is analyzed and introduced in this dissertation.

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A Case Study on the Sustainability for a Stanchion of Recreational Crafts based on the Design for Additive Manufacturing Using a FFF-type 3D Printer (FFF 3D 프린터를 이용한 DfAM 기반 소형선박용 스탠션 지속가능 개발 사례 연구)

  • Lee, Dong-Kun;Park, Bon-Yeong
    • Journal of the Society of Naval Architects of Korea
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    • v.58 no.5
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    • pp.294-302
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    • 2021
  • In this study, the 3D printing technique called design for additive manufacturing (DfAM) that is widely used in various industries was applied to marine leisure ships of equipment. The DfAM for the stanchion for crew safety was applied to the equipment used in an actual recreational craft. As design constraints, the design alternatives were not to exceed the safety and weight of the existing stainless steel material, which were reviewed, and the production of a low-cost FFF-type 3D printing method that can be used even in small shipyards was considered. Until now, additive manufacturing has been used for manufacturing only prototypes owing to its limitations of high manufacturing cost and low strength; however, in this study, it was applied to the mass production process to replace existing products. Thus, a design was developed with low manufacturing cost, adequate performance maintenance, and increased design freedom, and the optimal design was derived via structural analysis comparisons for each design alternative. In addition, a life-cycle assessment based on the ISO 1404X was conducted to develop sustainable products. Through this study, the effectiveness of additive manufacturing was examined for future applications in the shipbuilding industry.

Design and Manufacturing of Natural Composite Chemical Container Tank Using Resin Flow Simulation

  • Kim, Myungsub;Park, Hyunbum
    • International Journal of Aerospace System Engineering
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    • v.4 no.1
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    • pp.9-12
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    • 2017
  • In this study, an investigation on mechanical properties of flax natural fiber composite is performed as a precedent study on the design of eco-friendly structure using flax natural fiber composite. The Vacuum Assisted Resin Transfer Molding-Light (VARTML) manufacturing method is adopted for manufacturing the flax fiber composite panel. The VARTML is a manufacturing process that the resin is injected into the dry layered-up fibers enclosed by a rigid mold tool under vacuum. In this work, the resin flow analysis of VARTM manufacturing method is performed. A series of flax composite panels are manufactured, and several kinds of specimens cut out from the panels are tested to obtain mechanical performance data. Based on this, structural design of chemical storage tank for agricultural vehicle was performed using flax/vinyl ester. After structural design and analysis, the resin flow analysis of VARTM manufacturing method was performed.