Tag Archives: CAD

Fig. 1. a) Pin holes observed in the top side casting; b) Blow holes observed in tapped holes; c) Porosity is observed in top side of the casting.

Numerical and experimental approach to eliminate defects in al alloy pump- crank case processed through gravity die casting route

S.AravindP.RagupathiG.VigneshDepartment of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India Received 30 June 2020, Accepted 14 July 2020, Available online 14 August 2020. Abstract A numerical investigation was carried out with the help of computer based casting simulation software to eliminate defects such as shrinkage due to solidification, cracks, imperfect

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Figure 1. Sketches of selected specimens for microstructure observation.

Crack Initiation Mechanism in Casting AC4B Aluminum Alloy Parts with Complex Structure

by Daliang Yu 1,Wen Yang 2,Wanqing Deng 2,Songzhu Zhu 2,Qingwei Dai 1,3,* andDingfei Zhang 31School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China2Chongqing Zhicheng Machinery Co., LTD, Chongqing 400039, China3College of Materials Science and Engineering, Chongqing University, Chongqing 400045, China*Author to whom correspondence should be addressed.Metals2021, 11(1), 97; https://doi.org/10.3390/met11010097Received: 27 November 2020 / Revised: 25 December 2020 / Accepted:

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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].

A brief review of the technology in piston machining to goal the product localization in Vietnam

This introduction paper is based on the paper “A brief review of the technology in piston machining to goal the product localization in Vietnam” published by “[Journal/academic society of publication not explicitly stated in the paper]”. 1. Overview: 2. Abstract: The recent rapid growth of the Vietnamese automobile market is convincing proof that the Government

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Fig. 7. Cost and mass scaling for the motor subsystems to estimate motor costs for the AHSS and Al lightweight design.

Improvements in electric vehicle battery technology influence vehicle lightweighting and material substitution decisions

Joshua Thomas JamesonBurda, Elizabeth A.Moorea, HeshamEzzatbRandolphKirchainaRichardRothaa Materials Systems Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Ave, E19-695, Cambridge, MA 02139, United Statesb WorldAuto Steel/American Iron and Steel Institute, 2000 Town Center, Suite 320, Southfield, MI 48075, United States Highlights Global demand for and adoption of battery electric vehicles is on the rise. To achieve increased

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Fig. 3. Dies of the example structures used in gravity casting.

Approach on simulation of solidification and shrinkage of gravity cast salt cores

AndreasSchillingaKaiSalscheideraHenrikRuschebHrvojeJasakbMartinFehlbieraSebastianKohlstädtcaUniversity of Kassel, Department of Foundry Technology, Kurt-Wolters-Str. 3, 34125 Kassel, GermanybWikki GmbH, Ziegelbergsweg 68, 38855 Wernigerode, GermanycVolkswagen AG, Division of components manufacturing – Business Unit Casting Dr. Rudolf-Leiding-Platz 1, 34225 Baunatal, Germany Abstract In this work, a toolchain for the solidification and the shrinkage of cast salt cores used in high-pressure die casting is

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Fig. 1. Aluminium Die Cast Parts.

Automobile Parts Casting-Methods and Materials Used: A Review

Summary of “Automobile Parts Casting-Methods and Materials Used: A Review” This material is based on the paper “Automobile Parts Casting-Methods and Materials Used: A Review” by Madhav Goenka, Chico Nihal, Rahul Ramanathan, Pratyaksh Gupta, Aman Parashar, and Joel Jb.Paper Source: https://doi.org/10.1016/j.matpr.2020.03.518 1. Overview: 2. Research Background: 3. Research Objectives and Research Questions: 4. Research Methodology

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Figure 6. The pressure field at the times of impact and immediately afterwards

On the CFD Modelling of Slamming of the Metal Melt in High-Pressure Die Casting Involving Lost Cores

by Sebastian Kohlstädt 1,2,Michael Vynnycky 1,3,* andStephan Goeke 41Division of Processes, Department of Materials Science and Engineering, KTH Royal Institute of Technology, Brinellvägen 23, 100 44 Stockholm, Sweden2Volkswagen AG—Division of Components Manufacturing, Dr. Rudolf-Leiding-Platz 1, 34225 Baunatal, Germany3Department of Mathematics and Statistics, University of Limerick, Limerick V94 T9PX, Ireland4Institute of Mechanics, Kassel University, Mönchebergstr. 7, 34125 Kassel, Germany*Author to whom

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Aluminum applications are classified into 2 categories (platform and component) and 13 groups

Automotive applications for aluminum

New DuckerFrontier survey finds aluminum remains fastest growing automotive material, emerging as a preferred metal for EVs orgin article: New DuckerFrontier survey finds aluminum remains fastest growing automotive material, emerging as a preferred metal for EVs – Green Car Congress 13 August 2020 A new survey conducted by DuckerFrontier finds that aluminum, already the fastest growing automotive material, is

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FLOW-3D Courtesy Littler Diecasting Corporation, (www.flow3d.co.kr)

CFD for die casting processes

Computer simulation techniques for die casting processes Die casting is the go-to manufacturing technology for mass-produced, lightweight components made from metal, predominantly Aluminum and Magnesium alloys. Most of the high pressure die casted parts are manufactured for the automotive industry but consumer electronics are also making use of this technology. High Pressure Die Casting (HPDC)

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구배 치수가 있는 구배 원통의 종단 뷰

Die casting Design geometry

Design geometry reference : https://en.wikipedia.org/wiki/Die_casting There are a number of geometric features to be considered when creating a parametric model of a die casting: Draft is the amount of slope or taper given to cores or other parts of the die cavity to allow for easy ejection of the casting from the die. All die cast

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