The Influence of Bismuth, Antimony, and Strontium on Microstructure, Thermal, and Machinability of Aluminum-Silicon Alloy

被引：32

作者：

Barzani, Mohsen Marani ^{[1
]}

Farahany, Saeed ^{[2
]}

Yusof, Noordin Mohd ^{[1
]}

Ourdjini, Ali ^{[2
]}

机构：

[1] Univ Teknol Malaysia, Fac Mech Engn, Dept Mfg & Ind Engn, Utm 81310, Skudai, Malaysia

[2] Univ Teknol Malaysia, Fac Mech Engn, Dept Mat Engn, Utm 81310, Skudai, Malaysia

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2013年 / 28卷 / 11期

关键词：

ADC12; Aluminum alloy; Antimony; Bismuth; Machinability; Thermal analysis; MECHANICAL-PROPERTIES; SURFACE INTEGRITY; CUTTING FORCE; INSERTS; SR;

D O I：

10.1080/10426914.2013.792425

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this article, the influence of separate additions of bismuth, antimony, and strontium on microstructure, thermal, and machinability of Al-11%Si-2%Cu alloy (ADC12) has been reported. Additives depressed the aluminum-silicon eutectic growth temperature (T-G) and altered the silicon morphology. Different silicon morphologies, namely flake, lamellar, and fibrous influenced the main cutting force, feed force, and surface roughness during turning. Workpieces with fibrous silicon morphology produced the highest cutting force, feed force, and surface roughness while that of bismuth-containing workpieces produced the lowest cutting force, feed force, and the best surface roughness due to the formation of bismuth compound which acts as lubricant during turning. The results showed that the highest T-G is related to the best surface roughness and as such the best machinable alloy investigated.

引用

页码：1184 / 1190

页数：7

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