• Title/Summary/Keyword: Design for Manufacturing

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Development of 3D CAM system for End mills manufacturing

  • Trung-Thanh Pham;Ko, Sung-Lim;Kim, Yong-Hyun
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2004.10a
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    • pp.850-853
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    • 2004
  • The development of 3D CAM system for the manufacturing of end mills becomes a key approach to save the time and reduce cost for end mills manufacturing. This paper presents the calculation and simulation of end mill tools CNC machining bases on 5-axes CNC grinding machine tool. In this study describes the process of generation and simulation of grinding point data between the tool and the grinding wheels through the machined time. Depend on input data of end mill geometry, wheels geometry, wheel setting, machine setting the end mill configuration and NC code for machining will be generated and visualized in 3 dimension before machining. The 3D visualizations of end mill manufacturing was generated by using OpenGL in C++. The development software was designed by using Microsoft Visual C++, which has many advantages for users, saving time and reducing manufacturing cost.

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Node Part Development of Vehicle Body with Space Frame Using Design Technology for Additive Manufacturing (적층가공 특화설계기법을 이용한 스페이스 프레임 차체 노드 부품 개발)

  • Yang, Min-Seok;Jang, Jin-Seok;Kim, Da-Hye;Sung, Ji-Hyun;Kim, Jeung-Tae;Cho, Yeong-Chul;Lee, Jae-Wook
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.19 no.5
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    • pp.45-52
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    • 2020
  • Recently, design for additive manufacturing (DfAM) technology has become a prominent design methodology for exploiting 3D printing, which leads the Fourth Industrial Revolution. When manufactured by the 3D printing method, it is possible to produce several shapes compared to the conventional casting or cutting process. DfAM-as a newly-proposed design methodology-can be used to specially design products with various shapes to apply functional requirements. Topology optimization verifies load paths to determine the draft design, and a shape-optimized design with objective functions for weight reduction enables efficient lightweight product design. In this study, by using these two DfAM technologies, a lightweight and optimal design is constructed for a node part of a vehicle body with a space frame designed for a lightweight vehicle. DfAM methodologies for concept design and detailed design, and the associated results, are presented. Finally, the product was additively manufactured, a fatigue performance test was performed, and the design reliability was verified.

A Study of Global Manufacturing Education and Training for Chinese Company Manager

  • Sun, Jing;Tamaki, Kin'ya;Yeh, Shihshui;Takiuti, Noboru
    • Industrial Engineering and Management Systems
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    • v.13 no.3
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    • pp.252-257
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    • 2014
  • Global economic recession, global market reduction, and the deteriorating economic recession are forcing the industry to reconsider the business plan and strategy related to supply chain regardless of the size of the companies. During the economic recession caused by financial anxiety, development of international collaborative producer is the key theme for a manufacturing industry to get over the situation. Especially, development of high-skilled people who are capable of handling global manufacturing management is the key factor in China which shifted from a world factory to a world market. In this background, we started the international project of global manufacturing education and training for Chinese company managers from 2009. In this paper, based on the research conducted by the universities and companies in China, a design of global manufacturing education and training is proposed. This presented design is based on the theory of Japanese production strategy and investigation of actual conditions for Chinese companies and the research methodology of business management practice with efficiency and productive for international level management organization. The effectiveness of the education design is evaluated by applying the international education and training project of Aoyama Gakuin Human Innovation Consulting Inc. and Vigor Management Technology Association.

A Study of PLC Simulation for Transport System in Virtual Environment (가상환경 기반의 컨베이어 시스템 검증을 위한 제어 시뮬레이션 연구)

  • Ko, Min-Suk;Park, Sang-Chul
    • Korean Journal of Computational Design and Engineering
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    • v.17 no.4
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    • pp.274-281
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    • 2012
  • This paper proposed a control simulation method for design and verification of the transport system in an automobile assembly line based on digital manufacturing system. The design of the transport system involves two major activities: mechanical design (device specification) and electrical design (device behavior and system control). Conventionally, the simulation and emulation system of the transport system focuses on the abstract level, which mainly deals with design verification, alternative comparison, and system diagnosis. Although it can provide overall system visibility in monitoring how well it works in the process and view, its simulation models are not sufficiently realistic to be used for a detailed design or for implementation purposes. In this paper, a digital simulation model for a transport system in an automotive assembly line is constructed by adapting a digital manufacturing methodology. We use the concept of the "Virtual Probe", which transport a carrier instead of the belt of the conveyor. In conclusion, the proposed method is valuable in the process of test run in the shop floor. This method would reduce the time and effort for validating the manufacturing system and improve the productivity and integrity of the control program.

An Empirical Analysis of a Process Design Considering Worker's Cognition (작업자의 인지를 고려한 공정 설계에 대한 실증 연구)

  • Kim, Yearnmin
    • Journal of Korean Institute of Industrial Engineers
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    • v.42 no.2
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    • pp.80-85
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    • 2016
  • This study suggests a process design using cognitive processes. Job characteristic model for job design and recent cognitive engineering studies for process design are reviewed briefly. By using these concepts, the lean production system is re-interpreted in terms of cognitive engineering and the latent dimensions of the lean production system are revealed as the application of cognitive engineering principles. An integrated process design framework for cognitive manufacturing system using job characteristic model is suggested for the effective design of manufacturing system. Propositions for empirical analysis of this model are also analyzed through a questionnaire survey. Propositions are (1) experiential cognition and motivation potential affect the ability, role perception, and need for achievement of the operator in the manufacturing system, (2) the ability, role perception, and need for achievement of the operator affect the job performance. Both propositions are supported by correlation analysis and path analysis.

Research on the Framework for the Adoption of Digital Manufacturing Methodology with Information Strategy Planning Concept (ISP(정보 전략 계획) 개념을 이용한 디지털 생산 적용 프레임워크 연구)

  • Woo, Jong-Hun;Song, Young-Joo;Lee, Tae-Kyung;Shin, Jong-Gye
    • Korean Journal of Computational Design and Engineering
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    • v.15 no.2
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    • pp.94-105
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    • 2010
  • Todays, there is fast transition about the new manufacturing IT methodologies from the conceptual phase into the practical application phase for the strengthening of enterprise competitiveness in manufacturing industry. One of those new methodologies is PLM (Product Life-cycle Management). PLM methodology consists of 3D CAD for the product design, PDM (Product Data Management) for the data management based on the collaboration platform and lastly DM (Digital Manufacturing). DM has evoluted from the stand-alone computer simulation of early 1980s, and now it covers the overall production development and production. Unfortunately, there exist serious critical problems about the actual application of DM for the real work. This is owing to the transition of the point of view from stand-alone type application (such as flow simulation or robot simulation) to that of business process about product development and production management. In this paper, we propose an application framework for the successful project with the digital manufacturing methodology with the concept of Information Strategy Planning, which enables the systematic diagnosis and the quantitative evaluation. Also, we introduce the actual practice of the proposing framework with the ISP project for 'Analysis & Simulation Technique of manufacturing process project' that is being conducted by Chungnam Techno Park.

Agent-based Collaborative Simulation Architecture for Distributed Manufacturing Systems (분산 생산 시스템을 위한 에이전트 기반의 협업 시뮬레이션 체계)

  • Cha Yeong Pil;Jeong Mu Yeong
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2003.05a
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    • pp.808-813
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    • 2003
  • Maintaining agility and responsiveness m designing and manufacturing activities are the key issues for manufacturing companies to cope with global competition. Distributed design and control systems are regarded as an efficient solution for agility and responsiveness. However, distributed nature of a manufacturing system complicates production activities such as design, simulation, scheduling, and execution control. Especially, existing simulation systems have limited external integration capabilities, which make it difficult to implement complex control mechanisms for the distributed manufacturing systems. Moreover, integration and coupling of heterogeneous components and models are commonly required for the simulation of complex distributed systems. In this paper, a collaborative and adaptive simulation architecture is proposed as an open framework for simulation and analysis of the distributed manufacturing enterprises. By incorporating agents with their distributed characteristics of autonomy, intelligence, and goal-driven behavior, the proposed agent-based simulation architecture can be easily adapted to support the agile and distributed manufacturing systems. The architecture supports the coordination and cooperation relations, and provides a communication middleware among the participants in simulation.

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A Design of Integrated Manufacturing System for Compound Semiconductor Fabrication (화합물 반도체 공장의 통합생산시스템 설계에 관한 연구)

  • 이승우;박지훈;이화기
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.26 no.3
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    • pp.67-73
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    • 2003
  • Manufacturing technologies of compound semiconductor are similar to the process of memory device, but management technology of manufacturing process for compound semiconductor is not enough developed. Semiconductor manufacturing environment also has been emerged as mass customization and open foundry service so integrated manufacturing system is needed. In this study we design the integrated manufacturing system for compound semiconductor fabrication t hat has monitoring of process, reduction of lead-time, obedience of due-dates and so on. This study presents integrated manufacturing system having database system that based on web and data acquisition system. And we will implement them in the actual compound semiconductor fabrication.

Technology Trend of Construction Additive Manufacturing (건축 스케일 적층제조 기술동향)

  • Park, Jinsu;Kim, Kyungteak;Choi, Hanshin
    • Journal of Powder Materials
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    • v.26 no.6
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    • pp.528-538
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    • 2019
  • The transition from "More-of-Less" markets (economies of scale) to "Less-of-More" markets (economies of scope) is supported by advances of disruptive manufacturing and reconfigurable-supply-chain management technologies. With the prevalence of cyber-physical manufacturing systems, additive manufacturing technology is of great impact on industry, the economy, and society. Traditionally, backbone structures are built via bottom-up manufacturing with either pre-fabricated building blocks such as bricks or with layer-by-layer concrete casting such as climbing form-work casting. In both cases, the design selection is limited by form-work design and cost. Accordingly, the tool-less building of architecture with high design freedom is attractive. In the present study, we review the technological trends of additive manufacturing for construction-scale additive manufacturing in particular. The rapid tooling of patterns or molds and rapid manufacturing of construction parts or whole structures is extensively explored through uncertainties from technology. The future regulation still has drawbacks in the adoption of additive manufacturing in construction industries.

PPR Information Managements for Manufacturing of Automotive Press Dies (자동차 금형 생산을 위한 PPR 정보 관리)

  • Kim, Gun-Yeon;Lee, In-Seok;Song, Myeong-Hwan;Noh, Sang-Do
    • Korean Journal of Computational Design and Engineering
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    • v.12 no.6
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    • pp.452-460
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    • 2007
  • To achieve rapid developments and cost savings in manufacturing industries including automotive die shops, new paradigm and its supporting systems of information managements through total product life cycle are needed for concurrent and collaborative engineering. For manufacturing of automotive press dies, integrated and efficient managements of PPR information including product, manufacturing process and resource are essential. In this paper, we introduce a PLM approach to achieve engineering collaborations in product development and production of automotive dies. To prove concepts and benefits of PPR information managements, we implement new business workflow and detail procedures, PPR information management system and other related applications. By PPR information managements in PLM, improvements in quality of engineering results and savings in time from design to production of dies are possible.