Effects of gravitational orientation on surface deformation and weld pool geometry during gas tungsten arc welding

被引：13

作者：

Kang, N ^{[1
]}

Mahank, TA ^{[1
]}

Kulkarni, AK ^{[1
]}

Singh, J ^{[1
]}

机构：

[1] Penn State Univ, Dept Mech & Nucl Engn, University Pk, PA 16802 USA

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2003年 / 18卷 / 02期

关键词：

gas tungsten arc welding; nickel; gravitational orientation; free-surface deformation; weld-pool geometry; computer simulation;

D O I：

10.1081/AMP-120018903

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of gravitational orientation on gas tungsten arc (GTA) welding of nickel were studied to determine the impact of free-surface deformation on weld-pool shape. This was accomplished through GTA welding and a numerical study of the welding process. Welding was conducted by varying scan velocity and gravitational orientation, e.g.,,welding upward opposing gravity (parallel-up weld), welding downward with gravity (parallel-down weld), and welding perpendicular. to gravity (perpendicular weld). Slower scan velocity produced more significant free surface deformation. Gravitational orientation caused 21% deeper penetration in the parallel-up weld compared with the parallel-down weld (resulting from 50% or more maximum surface deformation). Weld penetration of the perpendicular weld was between that of parallel-up and parallel-down cases. A model of the welding process, in which an experimentally generated free surface was implemented as a boundary condition, supported the results by showing similar trends.

引用

页码：169 / 180

页数：12

共 50 条

[21] The effect of the cathode tip angle on the gas tungsten arc welding arc and weld pool: II. The mathematical model for the weld pool
Goodarzi, M
Choo, R
Takasu, T
Toguri, JM
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1998, 31 (05) : 569 - 583
[22] Modelling the transient behaviours of a fully penetrated gas-tungsten arc weld pool with surface deformation
Zhao, PC
Wu, CS
Zhang, YM
[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE, 2005, 219 (01) : 99 - 110
[23] Optimisation of the weld bead geometry in gas tungsten arc welding by the Taguchi method
Y. S. Tarng
W. H. Yang
[J]. The International Journal of Advanced Manufacturing Technology, 1998, 14 : 549 - 554
[24] Optimisation of the weld bead geometry in gas tungsten arc welding by the Taguchi method
Tarng, YS
Yang, WH
[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 1998, 14 (08): : 549 - 554
[25] Numerical simulation of transient development and diminution of weld pool in gas tungsten arc welding
Wu, CS
Yan, FJ
[J]. MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 2004, 12 (01) : 13 - 20
[26] Passive visual sensing in aluminum alloy weld pool in gas tungsten arc welding
Fan, Chong-Jian
Wang, Jian-Jun
Chen, Shan-Ben
[J]. Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University, 2008, 42 (01): : 42 - 45
[27] Effects of surface active elements on weld pool fluid flow and weld penetration in gas metal arc welding
Y. Wang
H. L. Tsai
[J]. Metallurgical and Materials Transactions B, 2001, 32 : 501 - 515
[28] Effects of surface active elements on weld pool fluid flow and weld penetration in gas metal arc welding
Wang, Y
Tsai, HL
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2001, 32 (03): : 501 - 515
[29] The prediction of the temperature distribution and weld pool geometry in the gas metal arc welding process
Wahab, MA
Painter, MJ
Davies, MH
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1998, 77 (1-3) : 233 - 239
[30] NUMERICAL INVESTIGATION OF TRANSIENT MARANGONI EFFECTS ON WELD POOL DYNAMICS IN GAS TUNGSTEN ARC WELDING OF STAINLESS STEEL
Sen, Debamoy
Ball, Kenneth S.
Pierson, Mark A.
[J]. PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2011, VOL 10, PTS A AND B, 2012, : 1113 - 1120

← 1 2 3 4 5 →