Study on the influence of the welding force in the union of ASTM A36 steel pipe and API flange through the friction welding process
- Kroeff F.C. ,
- Buzzatti D.T. ,
- Pissanti D.R. ,
- et al
- Kroeff F.C. ,
- Buzzatti D.T. ,
- Pissanti D.R. ,
- Brzostek R.C. ,
- Chludzinski M. and
- Strohaecker T.R.
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Description
Rotary friction welding was employed to fabricate joints between an ASTM A36 steel pipe (0.11%C, 0.2%Si, 0.92%Mn, 0.02%Cr, 0.02%Nb, 0.03%Al) and an API 6A flange and microstructural analyses and mechanical tests were undertaken to investigate the selection of process parameters to facilitate the production of a sound joint. Welding experiments were conducted at a rotational speed of 500 rpm, friction force of 40-60 kN and forging force of 65-95 kN. Microstructures of parent metal, HAZ and thermomechanically affected zone were observed by optical microscopy. Mechanical properties were characterised by Vickers microhardness profile measurement as well as bending and tensile tests.
10th International Symposium, 20-22 May 2014, Session 11B: Non Ferrous, Paper 02
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