Dilution in single pass arc welds

被引：70

作者：

DuPont, JN

Marder, AR

机构：

[1] Department of Materials Science and Engineering, Lehigh University, Bethlehem

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1996年 / 27卷 / 03期

关键词：

D O I：

10.1007/BF02914913

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

A study was conducted on dilution of single pass are welds of type 308 stainless steel filler metal deposited onto A36 carbon steel by the plasma are welding (PAW), gas tungsten are welding (GTAW), gas metal are welding (GMAW), and submerged are welding (SAW) processes. Knowledge of the are and melting efficiency was used in a simple energy balance to develop an expression for dilution as a function of welding variables and thermophysical properties of the filler metal and substrate. Comparison of calculated and experimentally determined dilution values shows the approach provides reasonable predictions of dilution when the melting efficiency can be accurately predicted. The conditions under which such accuracy is obtained are discussed. A diagram is developed from the dilution equation which readily reveals the effect of processing parameters on dilution to aid in parameter optimization.

引用

页码：481 / 489

页数：9

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