Quality Evaluation of Remelted A356 Scraps

• Autorzy: Yuksel C. , Tamer O. , Erzi E. , Aybarc U. , Cubuklusu E. , Topcuoglu O. , Cigdem M. , Dispinar D.

Identyfikatory

DOI

10.1515/afe-2016-0069

• Języki publikacji: EN

Abstrakty

EN

A356 is one of the widely used aluminium casting alloy that has been used in both sand and die casting processes. Large amounts of scrap metal can be generated from the runner systems and feeders. In addition, chips are generated in the machined parts. The surface area with regard to weight of chips is so high that it makes these scraps difficult to melt. Although there are several techniques evolved to remedy this problem, yet the problem lies in the quality of the recycled raw material. Since recycling of these scrap is quite important due to the advantages like energy saving and cost reduction in the final product, in this work, the recycling efficiency and casting quality were investigated. Three types of charges were prepared for casting: %100 primary ingot, %100 scrap aluminium and fifty-fifty scrap aluminium and primary ingot mixture were used. Melt quality was determined by calculating bifilm index by using reduced pressure test. Tensile test samples were produced by casting both from sand and die moulds. Relationship between bifilm index and tensile strength were determined as an indication of correlation of melt quality. It was found that untreated chips decrease the casting quality significantly. Therefore, prior to charging the chips into the furnace for melting, a series of cleaning processes has to be used in order to achieve good quality products.

Słowa kluczowe

EN

aluminium casting alloy; melt quality; scrap; recycle; mechanical properties; bifilm index

PL

stop aluminium; jakość topienia; wióry; recykling; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2016
• Tom: Vol. 16, iss. 3
• Strony: 151--156
• Opis fizyczny: Bibliogr. 31 poz., il., tab., wykr.

Twórcy

autor

Yuksel C.

• Yildiz Technical University, Turkey

autor

Tamer O.

• Yildiz Technical University, Turkey

autor

Erzi E.

• Istanbul University, Turkey

autor

Aybarc U.

• CMS Izmir, Turkey

autor

Cubuklusu E.

• CMS Izmir, Turkey

autor

Topcuoglu O.

• CMS Izmir, Turkey

autor

Cigdem M.

• Yildiz Technical University, Turkey

autor

Dispinar D.

• Istanbul University, Turkey

Bibliografia

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Uwagi

PL

Opracowane ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.