Effect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels

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	Effect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels
其他题名	Effect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels
	Li Zhuang 1; Wu Di 2
	2010
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	26 期号:9 页码:839-844
摘要	The machinability tests were conducted by using a YD-21 dynamometer on a CA6161A lathe. The experiments were conducted to determine the effect of free-cutting additives on machining characteristics of austenitic stainless steels. The conventional austenitic stainless steel 1Cr18Ni9Ti (steel A) and the free cutting austenitic stainless steel (steel B) were prepared. The results have shown that machinable inclusions were composed of MnS and CuO, and they might be also Ti(4)C(2)S(2). The presence of Bi in the inclusion was detected by the atom map and electro-probe microanalysis (EPMA), which might be one of the most important factors to improve the machinability of austenitic stainless steels. The cutting forces for steel B were lower than those of steel A at various cutting speeds; the abrasion depth of the flank of the tool for steel B was less than that of the steel A under the same cutting conditions. The machinability of austenitic stainless steel was visibly improved by adding free-cutting additives, such as S, Cu and Bi. Ultimate tensile, yield strength, and total elongation values of the free cutting austenitic stainless steel were improved due to the addition of these free-cutting additives.
其他摘要	The machinability tests were conducted by using a YD-21 dynamometer on a CA6161A lathe.The experiments were conducted to determine the effect of free-cutting additives on machining characteristics of austenitic stainless steels.The conventional austenitic stainless steel 1Cr18Ni9Ti(steel A)and the free cutting austenitic stainless steel(steel B)were prepared.The results have shown that machinable inclusions were composed of MnS and CuO,and they might be also Ti4C2S2.The presence of Bi in the inclusion was detected by the atom map and electro-probe microanalysis(EPMA),which might be one of the most important factors to improve the machinability of austenitic stainless steels.The cutting forces for steel B were lower than those of steel A at various cutting speeds;the abrasion depth of the flank of the tool for steel B was less than that of the steel A under the same cutting conditions.The machinability of austenitic stainless steel was visibly improved by adding free-cutting additives,such as S,Cu and Bi.Ultimate tensile,yield strength,and total elongation values of the free cutting austenitic stainless steel were improved due to the addition of these free-cutting additives.
关键词	CORROSION CU SUSCEPTIBILITY MACHINABILITY NI Austenitic stainless steel Free-cutting additives Bismuth Machining characteristics Mechanical properties
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Educational Department of Liaoning Province, China] ; [Shenyang City Application Basic Research Project, China]
CSCD记录号	CSCD:4223882
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/151861
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.东北大学
推荐引用方式 GB/T 7714	Li Zhuang,Wu Di. Effect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2010,26(9):839-844.
APA	Li Zhuang,&Wu Di.(2010).Effect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,26(9),839-844.
MLA	Li Zhuang,et al."Effect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 26.9(2010):839-844.