Micro Cutting Process of Ultra Fine Grain Steels

被引：0

作者：

Komatsu, Takafumi ^{[1
]}

Matsumura, Takeshi ^{[2
]}

Yoshino, Tomoaki ^{[3
]}

Torizuka, Shiro ^{[3
]}

机构：

[1] Komatsuseiki Kosakusho, Prod Pep, 942-2 Shiga, Suwa, Nagano 3920012, Japan

[2] Tokyo Denki Univ, Engn Mech, Tokyo 1018457, Japan

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

14TH INTERNATIONAL CONFERENCE ON MATERIAL FORMING ESAFORM, 2011 PROCEEDINGS | 2011年 / 1353卷

关键词：

Micro Cutting; Grain Size; Cutting Force; Shear Angle; Chip formation; DEFORMATION; EVOLUTION;

D O I：

10.1063/1.3589578

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper discusses the effect of the crystal grain size of materials on the micro cutting processes. The cutting process of ultra fine grain carbon steel, which consists of 0.5 mu m sized grains, is compared with those of the larger grain steels. The micro cutting tests were performed to measure the cutting force with changing the cutting thickness. The cutting force of the ultra fine grain steel is larger than that of the large grain steel corresponding to the hardness change of materials. The specific cutting forces remarkably increase when the cutting thickness becomes less than 10 mu m. The shear angle of the ultra fine grain steel is larger than that of larger grain steels in small cutting thickness. The uniform chip formation is also observed with fine surfaces in cutting of the ultra fine grain steel.

引用

页码：585 / 590

页数：6

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