RESISTANCE SPOT WELDABILITY OF COMPARATIVELY THICK C-MN-CR-MO DUAL PHASE STEEL SHEET

被引：26

作者：

GHOSH, PK ^{[1
]}

GUPTA, PC ^{[1
]}

AVTAR, R ^{[1
]}

JHA, BK ^{[1
]}

机构：

[1] STEEL AUTHORITY INDIA LTD,RDCIS,RANCHI 834002,INDIA

来源：

ISIJ INTERNATIONAL | 1990年 / 30卷 / 03期

关键词：

4 mm thick sheet; C-Mn-Cr-Mo dual phase steel; microhardness; microstructure; resistance spot welding; tensile shear strength;

D O I：

10.2355/isijinternational.30.233

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Welding of comparatively thick (4 mm) C-Mn-Cr-Mo dual phase steel has been carried out by resistance spot welding process. Weldability of this steel has been studied by varying the electrode force and the primary welding parameters affecting the heat input such as the effective current and weld time. The influence of these welding parameters on the morphology, microhardness and the tensile shear strength of the weldment are investigated. Optimum welding parameters producing maximum joint strength are established as electrode force of 615 kg, effective current of 6 kA and weld time of 80 cycle. Weakening of weldment caused by excess tempering of martensite at the outer region of HAZ was not observed in the range of optimum welding conditions. © 1990, The Iron and Steel Institute of Japan. All rights reserved.

引用

页码：233 / 240

页数：8

共 19 条

[1]

BRGHAN AJ, 1977, L176185 REP

[2] INFLUENCE OF MARTENSITE COMPOSITION AND CONTENT ON PROPERTIES OF DUAL PHASE STEELS [J].

DAVIES, RG .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1978, 9 (05) :671-679

[3]

GHOSH PK, 1989, SCHWEISSEN SCHNEIDEN

[4]

GHOSH PK, 1989, WELD J

[5]

GUPTA PC, 1988, P INT C WELD TECH DE

[6]

IRIE T, 1985, SAE850118 TECH PAP

[7]

JHA BK, 1983, STEEL INDIA, V6, P114

[8]

KUNISHIGE K, 1983, FEB P I C DETR, P5

[9]

NISHIDA M, 1978, 10TH P BIENN C SHEET, P211

[10]

OHASHI N, 1978, T IRON STEEL I JPN, V18, P321

← 1 2 →