Tag Archives: Microstructure

Microstructure, segregation and fracture behavior of 6061 aluminum alloy samples formed by semi-solid or traditional high pressure die casting

Microstructure, segregation and fracture behavior of 6061 aluminum alloy samples formed by semi-solid or traditional high pressure die casting

반고체 또는 전통적인 고압 다이 캐스팅으로 형성된 6061 알루미늄 합금 샘플의 미세 구조, 분리 및 파괴 거동 NaiyongLiWeiminMaoXiaoxinGengRongshengZhangBingdongYan Highlights •Semi-solid 6061 aluminum alloy slurry prepared by the SCP process. •Rheo-HPDC can improve and refine the coarse dendritic microstructures in the traditional HPDC samples. •Segregation is improved by increasing the Si content in the alloy. •The

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Die casting is mostly used because many parts need to be manufactured in a short amount of time (hundreds to thousands per day) with high accuracy. Parts like valve covers, wheels, transmission housings, engine block, wheel spacer, carburetor, impellers and fan clutch, alternator housing, airbag gas generator housing, etc. are all modes through the aluminum die casting method. Automobile parts require uniformity and high surface finish which can be accomplished by using casting methods that work in a controlled environment- pressure dies casting. Die casting was originally developed specifically for automotive applications [28]. The idea is to produce parts that are light, easy to handle, and cheap. Thus, die casting is widely applied to zinc and aluminum which are lighter than cast iron. Figure 2 shows the aluminum die-cast parts of a car. PEGASUS has been supplying quality aluminum die-cast auto parts to the automobile industry with our stable production system since we started this business in 2007 [27]. At present, we are supplying 60 kinds of die-cast products with our unique mold design and casting technology in addition to the processing technology we have been cultivating in the industrial sewing machine industry [29]. Aluminum or Al-Si alloys are used for Die casting. During this process, molten metal is injected at high pressure into a die (made of metal) which is a permanent mold comprising of two parts of the desired shape attached [30].

베트남 제품 현지화를 목표로 한 피스톤 가공 기술에 대한 간략한 검토

이 소개 자료는 “[March 2021 Journal of Mechanical Engineering Research and Developments ]”에 게재된 “[논문 제목: A brief review of the technology in piston machining to goal the product localization in Vietnam]” 논문을 기반으로 합니다. 1. 개요: 2. 초록: 최근 베트남 자동차 시장의 급격한 성장은 정부가 이 산업의 구축 및 발전에 정책 수립에 깊은 관심을 기울이고

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Fig. 2. Photographs of the four different parts formed by FCS Rheo-HPDC technology

레오-HPDC 알루미늄 및 마그네슘 합금을 위한 강제 대류 교반 공정

이 소개 자료는 “[Journal/academic society of publication]”에서 출판된 “[A forced convection stirring process for Rheo-HPDC aluminum and magnesium alloys]” 논문을 기반으로 합니다. 1. 개요: 2. 초록: Al 및 Mg 합금의 네 가지 다른 반용융 슬러리를 제조하기 위해 강제 대류 교반(forced convection stirring, FCS)이라는 단순화된 공정이 제안되었습니다. FCS 장치를 HPDC 기계와 결합하여 간단한 레올로지 고압 다이캐스팅(Rheo-HPDC)

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