EFFECT OF MACHINING PROCESSES ON THE FATIGUE-STRENGTH OF HARDENED AISI-4340 STEEL

被引：53

作者：

MATSUMOTO, Y ^{[1
]}

MAGDA, D ^{[1
]}

HOEPPNER, DW ^{[1
]}

KIM, TY ^{[1
]}

机构：

[1] UNIV UTAH,DEPT MECH ENGN,SALT LAKE CITY,UT 84112

来源：

JOURNAL OF ENGINEERING FOR INDUSTRY-TRANSACTIONS OF THE ASME | 1991年 / 113卷 / 02期

关键词：

D O I：

10.1115/1.2899672

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The effect of two finishing processes, namely, cutting and grinding, on the fatigue strength of hardened AISI 4340 steel was investigated. Three sets of flat tensile specimens were prepared by first machining into the general shape of the fatigue specimen standard, then they were hardened to HRC 54. The final grinding was carefully performed on one set of specimens. Two sets of specimens were fly cut to obtain a surface finish comparable to the ground surface. The residual stress distribution, surface structure, and surface profiles were determined. Fatigue testing was accomplished on these specimens in tension under load control. All the residual stress patterns were compressive, but the residual stress created by fly cutting reached a much deeper layer than that created by grinding. Fly cutting also produced a surface with a higher fatigue strength than the grinding did.

引用

页码：154 / 159

页数：6

共 17 条

[1]

Koenig W., Komanduri R., Toenshoft H.K., Machining of Hard Materials, Annals of CIR, 33, 3, (1984)

[2]

Shipley T., Hard Turning—A New Alternative to Grinding, The Carbide and Tool Journal, (1982)

[3]

Tabuchi N., Et al., Performance of ‘Subiboron BN 200, Sumitomo Electric Technical Review, 18, (1978)

[4]

Kohno Y., Uchida T., Hara A., New Applications of Polycrystalline CBN, Society of Manufacturing Engineers, (1985)

[5]

Gettleman K., Sub-Micron Turning, Modern Machine Shop, (1984)

[6]

Matsumoto Y., Barash M.M., Review of Cutting Technology of Hard Materials, (1987)

[7]

Matsumoto Y., Barash M.M., Liu C.R., Effect of Hardness on the Surface Integrity of AISI 4340 Steel, ASME Journal of Engineering for Industry, 108, (1986)

[8]

Koster W.P., Field M., Fritz L.J., Gatto L.R., Kahles J.F., Surface Integrity of Machined Structural Components, (1970)

[9]

Reed E.C., Viens J.A., The Influence of Residual Stress on Fatigue Limit of Titanium, ASME Journal of Engineering for Industry, 82, (1960)

[10]

El-Helieby S.O.A., Rowe G.W., Influence of Surface Roughness and Residual Stress on Fatigue Life of Ground Steel Components, Metals Technology, (1980)

← 1 2 →