ANALYSIS OF COEFFICIENT OF FRICTION IN COMPRESSION OF POROUS METAL RINGS

被引：13

作者：

HAN, HN ^{[1
]}

KIM, HS ^{[1
]}

OH, KH ^{[1
]}

LEE, DN ^{[1
]}

机构：

[1] INST ADV ENGN,SEOUL,SOUTH KOREA

来源：

POWDER METALLURGY | 1994年 / 37卷 / 04期

关键词：

D O I：

10.1179/pom.1994.37.4.259

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The elastoplastic finite element method using a yield criterion advanced by Lee and Kim was employed to analyse the compression of sintered porous metal rings. Densities of the porous rings and compression loads have been calculated as a function of height reduction. The changes in geometry of porous metal rings with initial relative density were also calculated for various coefficients of friction between the metal rings and compression platens. The coefficient of friction could be determined from the relationship between the change in the inner diameter and height reduction of porous metal rings with various initial relative densities. From the changes in the average relative densities of the porous metal rings, evaluation of lubricants could be also conducted.

引用

页码：259 / 264

页数：6

共 19 条

[1]

AVITZUR B, 1968, METAL FORMING PROCES, P77

[2]

BATHE KJ, 1982, FINITE ELEMENT PROCE, P388

[3] DENSIFICATION OF IRON COMPACTS WITH VARIOUS INITIAL POROSITIES UNDER HYDROSTATIC-PRESSURE [J].

BINER, SB ;

SPITZIG, WA .

ACTA METALLURGICA ET MATERIALIA, 1990, 38 (04) :603-610

[4]

DORAIVELU SM, 1984, INT J MECH SCI, V26, P527, DOI 10.1016/0020-7403(84)90006-7

[5] CONTINUUM THEORY OF DUCTILE RUPTURE BY VOID NUCLEATION AND GROWTH .1. YIELD CRITERIA AND FLOW RULES FOR POROUS DUCTILE MEDIA [J].

GURSON, AL .

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1977, 99 (01) :2-15

[6] DENSIFICATION OF SINTERED POROUS METAL UNDER HYDROSTATIC-PRESSURE [J].

HAN, HN ;

KIM, HS ;

LEE, DN .

SCRIPTA METALLURGICA ET MATERIALIA, 1993, 29 (09) :1211-1216

[7]

HAN HN, 1994, POWDER METALL, P140

[8]

KUHN HA, 1978, POWDER METALLURGY PR, P118

[9] HILLS GENERAL METHOD OF ANALYSIS FOR METAL-WORKING PROCESSES [J].

LAHOTI, GD ;

KOBAYASH.S .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 1974, 16 (08) :521-540

[10]

LEE CH, 1972, ASME, V94, P775

← 1 2 →