OXY-ACETYLENE DIFFUSION WELDING OF PLAIN CARBON STEELS
DARWISH, A., ABDOU, M., EL-GEMAE, S., MORSY, A. (1984). OXY-ACETYLENE DIFFUSION WELDING OF PLAIN CARBON STEELS. EKB Journal Management System, 1(1st Conference on Applied Mechanical Engineering.), 29-37. doi: 10.21608/amme.1984.49189
A. H. DARWISH; M. A. ABDOU; S. H. EL-GEMAE; A. A. MORSY. "OXY-ACETYLENE DIFFUSION WELDING OF PLAIN CARBON STEELS". EKB Journal Management System, 1, 1st Conference on Applied Mechanical Engineering., 1984, 29-37. doi: 10.21608/amme.1984.49189
DARWISH, A., ABDOU, M., EL-GEMAE, S., MORSY, A. (1984). 'OXY-ACETYLENE DIFFUSION WELDING OF PLAIN CARBON STEELS', EKB Journal Management System, 1(1st Conference on Applied Mechanical Engineering.), pp. 29-37. doi: 10.21608/amme.1984.49189
DARWISH, A., ABDOU, M., EL-GEMAE, S., MORSY, A. OXY-ACETYLENE DIFFUSION WELDING OF PLAIN CARBON STEELS. EKB Journal Management System, 1984; 1(1st Conference on Applied Mechanical Engineering.): 29-37. doi: 10.21608/amme.1984.49189

OXY-ACETYLENE DIFFUSION WELDING OF PLAIN CARBON STEELS

The International Conference on Applied Mechanics and Mechanical Engineering
Article 47, Volume 1, 1st Conference on Applied Mechanical Engineering., May 1984, Page 29-37  XML PDF (2.08 MB)
Document Type: Original Article
DOI: 10.21608/amme.1984.49189
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Authors
A. H. DARWISH1; M. A. ABDOU2; S. H. EL-GEMAE2; A. A. MORSY3
1Professor, Mechanical Engineering Department, AL-Azhar University Nasr City, Cairo. Egypt.
2Associate professor, Mechanical Engineering Department, AL-Azhar University Nasr City, Cairo. Egypt.
3Research Assistant, Mechanical Engineering Department, AL-Azhar University Nasr City, Cairo. Egypt.
Abstract
A simple practical method for diffusion welding of steel components, in air, was developed. Specially designed oxy-acetylene ring burner was used for heating the specimens up to 1273 K. Two main advantages could be gained by using the designed burner. Firstly, very short heating up times were obtained. Secondly, the reducing zone of the oxy-acetylene flame was used as a protective atmosphere during the welding process. A series of plain carbon steel specimens ranging from 0.17% C to 1.1% C were, successfully, diffusion welded in air. A thin carbon rich layer was wrapped around the specimen at the periphery of the welding zone to act as a sealing ring and reduce oxidation. The specimens were heat treated and microhardness, impact, bending and tensile tests were conducted. The yield strength of the welded joints was found to decrease with increasing carbon content up to the eutectoid composition. However, above 0.8%C the yield strength increased with increasing carbon content. Metallographic examinations of the diffusion welded joints revealed the existence of ferritic bands close to the welding interface. The observed microstructure features were correlated with the differences in strength of various steels.
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