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Effect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels
Alternative TitleEffect of Free-cutting Additives on Machining Characteristics of Austenitic Stainless Steels
Li Zhuang1; Wu Di2
2010
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume26Issue:9Pages:839-844
AbstractThe 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.
Other AbstractThe 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.
KeywordCORROSION CU SUSCEPTIBILITY MACHINABILITY NI Austenitic stainless steel Free-cutting additives Bismuth Machining characteristics Mechanical properties
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Educational Department of Liaoning Province, China] ; [Shenyang City Application Basic Research Project, China]
CSCD IDCSCD:4223882
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/151864
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.东北大学
Recommended Citation
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.
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