When shot-peening does not enhance fatigue life of leaf springs

被引：2

作者：

Aggarwal, M. L. ^{[1
]}

Khan, R. A. ^{[2
]}

Garg, R. K. ^{[3
]}

机构：

[1] YMCA Inst Engn, Dept Mech Engn, Faridabad 121006, India

[2] Jamia Millia Islamia, Dept Mech Engn, New Delhi 110025, India

[3] Dr BR Ambedkar Natl Inst Technol, Dept Ind Engn, Jalandhar, Punjab, India

来源：

INTERNATIONAL JOURNAL OF SURFACE SCIENCE AND ENGINEERING | 2008年 / 2卷 / 3-4期

关键词：

fatigue; shot-peening; specimen; fretting fatigue;

D O I：

10.1504/IJSURFSE.2008.020499

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue life of shot-peened components and assemblies is found to be lower than expected owing to various reasons. In this paper, the fatigue strength of EN45A spring steel shot-peened samples has been evaluated experimentally at various shot-peening conditions. A wide difference was noticed in the fatigue testing results of leaf springs and sample data. Various contributing causes were analysed and the extent in improvement of fatigue life of shot-peened leaf springs has been discussed. The paper discusses circumstances when the shot-peening does not improve fatigue and fretting fatigue resistance of mating components.

引用

页码：281 / 293

页数：13

共 12 条

[1] Effect of surface roughness on the fretting fatigue behaviour of EN45A spring steel [J].

Aggarwal, M. L. ;

Khan, R. A. ;

Agrawal, V. P. .

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, 2006, 220 (08) :1325-1331

[2] A stress approach model for predictions of fatigue life by shot peening of EN45A spring steel [J].

Aggarwal, M. L. ;

Agrawal, V. P. ;

Khan, R. A. .

INTERNATIONAL JOURNAL OF FATIGUE, 2006, 28 (12) :1845-1853

[3]

Aggarwal ML, 2006, INDIAN J ENG MATER S, V13, P217

[4]

Aggarwal ML, 2005, INDIAN J ENG MATER S, V12, P515

[5] Investigation into the effects of shot peening on the fretting fatigue behaviour of 65Si7 spring steel leaf springs [J].

Aggarwal, ML ;

Khan, RA ;

Agrawal, VP .

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS, 2005, 219 (L3) :139-147

[6]

AGGARWAL ML, 2001, INT J MANUFACTURING, V2, P30

[7]

ALMEN JO, 1935, P ASTM, V35, P95

[8]

BOX GEP, 1978, STAT EXPT, P304

[9] EFFECT OF SHOT PEENING ON RESIDUAL-STRESS AND FATIGUE LIFE OF A SPRING STEEL [J].

FARRAHI, GH ;

LEBRUN, JL ;

COURATIN, D .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1995, 18 (02) :211-220

[10] When fatigue quality enhancers do not enhance fatigue quality [J].

Ofsthun, M .

INTERNATIONAL JOURNAL OF FATIGUE, 2003, 25 (9-11) :1223-1228

← 1 2 →