Actas de congresos
Eliminating Porosity In The Weld Bead Of Automotive Axles
Registro en:
Sae Technical Papers. , v. , n. , p. - , 2007.
10.4271/2007-01-2717
2-s2.0-84877452276
Autor
Maia I.G.
Trevisan R.D.E.
Institución
Resumen
To solve the problem of pores in the weld bead of automotive axles, a study was made of the influence of various factors leading to the occurrence of porosity in steel joints welded by the robotic MIG/MAG process. Basically, the study focused on the influence the presence of a nitride-rich layer at the joint, the cleanliness of the surfaces to be welded, and the flow rate of the shielding gas. The results indicated that the presence of the nitride-rich layer generated by the plasma cutting process at the end of the tube corresponding to the base metal 1 significantly affected the resulting porosity in the weld bead. In addition to the experimental tests, practical tests were carried out on the shop floor in the axle production sector. Copyright © 2007 SAE International.
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