• 제목/요약/키워드: Moldflow Simulation

검색결과 46건 처리시간 0.03초

초박육 사출성형에서 Moldflow 시뮬레이션을 활용한 전자부품의 형상 최적화 (Dimensional Optimization of Electric Component in Ultra Thin-wall Injection Molding by Using Moldflow Simulation)

  • 이정희;배현선;곽재섭
    • 한국기계가공학회지
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    • 제19권7호
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    • pp.1-6
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    • 2020
  • Micro-structure components applied to various disciplines are steadily demanded with lighter weight and better quality. This is because that ultra thin-wall injection molding has been paid attention with a lot of benefits such as cost reduction, shorter process period, and so forth. However, this technology is complicate and difficult to obtain high quality of products compared with conventional injection molding due to warpage caused by uneven shrinkage and molecular orientation. Since warpage of products directly affects product quality and overall performance of devices, it is essential to predict deformation behavior to achieve high precision of molded products. Therefore, this study aims to find out adequate thin-wall mold design for FPC connector housing by employing Moldflow simulation before application. In addition, experimental research is performed by using a fabricated mold structure based on simulated results to prove accuracy and reliability of the suggested simulation for warpage analysis.

Moldflow를 이용한 자동차 기어박스커버의 사출성형공정 해석 (An Analysis of Plastic Injection Molding Process for Automobile Gearbox Cover by Moldflow)

  • 노태정;김경수
    • 한국산학기술학회논문지
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    • 제9권6호
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    • pp.1494-1499
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    • 2008
  • 플라스틱은 양호한 내구성과 더불어 가벼우면서 장시간 경과하여도 변질이 없는 특성으로 인하여 자동차 내장 부품의 가장 주요한 소재로 활용되어지고 있다. Moldflow를 이용한 자동차 기어박스커버의 플라스틱 사출공정 시뮬레이션을 통해 충전시간, 웰드라인, 에어트랩 등 사출성형 공정에 대한 사전분석을 제시하였다.

자동차부품용 알루미늄인서트 사출성형공정 구현에 관한 연구 (A Study on Implementation of Al-Inserted Plastic Injection Molding Process for Automobile Interior-Parts)

  • 노태정;김경수
    • 한국정밀공학회지
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    • 제25권5호
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    • pp.43-51
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    • 2008
  • Generally a plastic injection molding is a manufacturing process used to produce the various parts of complicated shape at low cost. The objective of this study is to implement a new plastic injection molding process with inserted Aluminum sheet, which is highly durable, light and luminous. Moldflow analysis and simulation of plastic injection molding process with inserted Aluminum sheet were carried out in order to predict optimal molding operation conditions. The experimental results in the Al-inserted plastic injection molding process were compared with the simulation results by Moldflow. Durability and reliability test results for trial products were satisfied to adopt the Al-inserted plastic injection molding process developed as manufacturing of automobile interior parts.

Moldflow를 이용한 드럼세탁기 케이스의 사출성형공정에 관한 연구 (A study on the Injection Molding Process of the Case of Drum Type Washer using Moldflow)

  • 박철우
    • Journal of Advanced Marine Engineering and Technology
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    • 제33권1호
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    • pp.90-96
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    • 2009
  • Injection molding process is one of the most important methods to produce plastic parts with high efficiency and low cost. Today, injection molded parts have been increased dramatically the demand for high strength and quality applications. This report investigates that the optimum injection molding condition for minimum of shrinkage. Molding shrinkage is occurred by several reasons such as thermal shrinkage, a hardening process and compressibility. This report concentrate on shrinkage by a hardening process. As Change a holding pressure and holding time, checked deflections of X, Y, Z directions by shrinkage based on same condition. In conclusion, it was found that holding pressure is stronger and holding time is longer, the deflection by shrinkage is smaller because injection molding needs enough time for cooling and high density. The FEM Simulation CAE tool. Moldflow, is used for the analysis of injection molding process.

Moldflow를 이용한 인라인스케이트 프레임의 사출성형공정에 관한 연구 (A Study on the Injection Molding Process of Inline Skate Frame Using Moldflow)

  • 이형우;박철우
    • Journal of Advanced Marine Engineering and Technology
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    • 제34권2호
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    • pp.289-295
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    • 2010
  • 플락스틱 재료를 사용한 가공법 중에서 가장 보편적인 가공법이 사출성형이다. 플라스틱 재료의 활용도는 지속적으로 증가하고 있으며, 신소재 등의 개발로 그 적용범위 또한 확대되고 있다. 사출성형에서 수축현상은 수지의 종류, 즉 결정성 수지인지 비결정성 수지인지에 따라 크게 다르게 나타나며 사출성형시의 운전조건에 따라서도 다르다. 본 연구에서는 Al합금으로 제작되고 있는 인라인 스케이트의 프레임을 플라스틱 재료로 대체하기 위한 최적화 공정에 관한 것이다. 금형설계 전 해석을 통하여 성형공정이 최소화되는 런너와 게이트의 치수와 형상을 결정하겠다. 런너와 게이트의 치수 변화에 따른 제품의 사출성형성을 알아보겠다. 본 연구의 시뮬레이션에서는 사출성형해석용 소프트웨어인 Moldflow를 이용해서 해석을 수행하였다.

플라스틱 유동해석 프로그램을 이용한 자동차 도어 핸들의 유동예측 (Plastic Flow Prediction of Automobile Door-Handle Using Injection Molding Simulation Programs)

  • 한성렬;강철민;유호종;정영득
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2004년도 추계학술대회 논문집
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    • pp.295-298
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    • 2004
  • Automobile door-handle is assembled with three parts that are base, skin and cover. Over-molding processing makes assembly of the base and skin. The skin part that was made by PVC polymer has various thickness. Plastic injection molding simulation of part including significant changed thickness as skin is an inaccuracy comparing with real injection molding. To solve this problem, two commercial flow prediction software that are Moldflow MPI and MAPS 3D were used in this study. Simulations were conducted for three types mesh. Taguchi method was applied for simulation experiments. It will be need to compare with simulation results and real over-molding behavior in the near future.

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컴퓨터 시뮬레이션과 다구치 방법을 이용한 냉각 필터 사출성형 공정의 최적화 (Optimizing the Injection Molding Process for Cooling Filter Using Computer Simulation and Taguchi Methods)

  • 이승훈;민병현;김병곤
    • 산업공학
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    • 제15권3호
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    • pp.263-269
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    • 2002
  • The injection molding process is a one of the most efficient techniques for manufacturing plastic parts of complex shape at low cost. In injection molding, molten plastic material is injected into the mold and cooled. Selection of molding conditions greatly affects the quality of molded parts. In this case study, we attempted to optimize the injection molding condition for a cooling filter using Taguchi experimental design methodology. The injection molding experiments were carried out using the Moldflow simulation software.

얼터네이터 풀리의 제조를 위한 사출성형공정에 관한 연구 (A Study on the Injection Molding Process for Manufacturing of Alternator Pulley)

  • 민병현;김영호
    • 한국자동차공학회논문집
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    • 제10권3호
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    • pp.159-165
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    • 2002
  • So far, an alternator pulley has been formed by cold forging and casting with a metal due to the necessity of its high strength. Various advantages such as the light weight, the low cost, and the high productivity can be obtained by the injection molding process using engineering plastics. Engineering plastics have an excellent performance in the characteristics off strength vs. weight, a good forming ability and a productivity. The object of this study is to develop an alternator pulley, which has been made with a metal, using the injection molding process based on Taguchi methods. A sink mark is considered as a characteristic parameter to improve the quality. The FEM Simulation CAE tool, Moldflow, is used for the analysis of injection molding process.

유한요소해석을 이용한 인라인스케이트 프레임의 사출성형해석 및 구조해석에 관한 연구 (Injection Molding and Structure Analysis of Inline Skate Frames Using FEA)

  • 박철우
    • 대한기계학회논문집A
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    • 제35권11호
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    • pp.1507-1514
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    • 2011
  • 플라스틱 재료를 사용한 가공법 중에서 가장 보편적인 가공법이 사출성형이다. 오늘날에는 플라스틱 재료의 활용도는 지속적으로 증가하고 있으며, 신소재 등의 개발로 그 적용범위 또한 확대되고 있다. 인라인 스케이트는 4 가지 구성품으로 이루어진다. 그 4 가지 구성품은 부츠, 프레임, 휠, 브레이크로써 프레임이 가장 중요한 부품이다. 사출 재질에 변화에 따른 사출 성형성을 알아보았다. 런너와 게이트의 치수 변화에 따른 제품의 사출 성형성을 알아보았다. 본 연구에서는 Moldflow를 이용해서 사출성형 해석을 수행하였다. ANSYS를 이용해서 구조해석을 수행하였다.

LCD 도광판 두께에 따른 휘도 및 잔류응력에 관한 연구 (A Study of Brightness and Residual Stresses Depending on Thickness of LCD Light Guide Plate)

  • 이중원;박명균;김정훈
    • 한국정밀공학회지
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    • 제25권9호
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    • pp.38-44
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    • 2008
  • Light guide plate is one of most important components which are composed of back light unit, affecting the quality and performance of LCD. Average brightness and uniformity are especially key factors for designing the light guide unit. These qualities are affected and controlled by the pattern being attached to the back of light guide unit. In order to obtain high brightness and uniformity the optimized pattern design is adopted for LGP. In this study, optimized molding condition for LGP with 0.4 mm thickness was obtained by using the Moldflow simulation software and the optimized pattern for better brightness uniformity was designed for the thickness of the 0.4 mm by trial and error method. The brightness was measured for the different LGP thicknesses and the residual stress analysis was performed for 0.4 mmthickness by the photoelasticity and the results are compared with 0.5 mm, 0.6 mm thickness.