CAST STEEL

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Subject Author Date CAST STEEL solo 07-25-2007  Re: CAST STEEL RoyJ 07-25-2007  Re: CAST STEEL solo 07-31-2007  Re: CAST STEEL jp2home 07-25-2007
Posted by solo on July 25, 2007, 11:57 am Please log in for more thread options HELP I am trying to weld cast steel : a flywheel to clutch basket - with arc The weld keeps cracking right down the centre any ideas ?? cheers everyone Posted by RoyJ on July 25, 2007, 12:39 pm Please log in for more thread options The cracking indicates that your weld area is getting high carbon or high alloy admixture from the base material. Proper welding will require specific weld materials and at least some measure of pre and post heat treatment. Net: non trivial. But I wouldn't even think about trying to weld on a flywheel or pressure plate. I just sat down at the computer after coming in from the shop: the object of my attention 5 minutes ago was a pressure plate from a Porsche GT3 Cup car that disasembled at just under 10k rpm. Lets just say I'm sensitive to the safety aspects of these things right now. This is a case of "if you have to ask, I won't tell you" solo wrote: > HELP > > I am trying to weld cast steel : a flywheel to clutch basket - with > arc > > The weld keeps cracking right down the centre > > any ideas ?? > > cheers everyone > Posted by solo on July 31, 2007, 2:19 am Please log in for more thread options > The cracking indicates that your weld area is getting high carbon or > high alloy admixture from the base material. Proper welding will require > specific weld materials and at least some measure of pre and post heat > treatment. Net: non trivial. > > But I wouldn't even think about trying to weld on a flywheel or pressure > plate. I just sat down at the computer after coming in from the shop: > the object of my attention 5 minutes ago was a pressure plate from a > Porsche GT3 Cup car that disasembled at just under 10k rpm. Lets just > say I'm sensitive to the safety aspects of these things right now. This > is a case of "if you have to ask, I won't tell you" > > > > solo wrote: > > HELP > > > I am trying to weld cast steel : a flywheel to clutch basket - with > > arc > > > The weld keeps cracking right down the centre > > > any ideas ?? > > > cheers everyone- Hide quoted text - > > - Show quoted text - how condesending Posted by jp2home on July 25, 2007, 10:36 pm Please log in for more thread options You will need to heat the parts first - both parts. Pre-heat your cast iron parts slowly to just before it turns red hot. Do your weld, then slowly allow the cast iron to cool. How do you get a big piece of cast iron that hot then slowly cool it? Expensive equipment! That's why a lot of people will just go buy another cast iron flywheel. Besides, like RoyJ said, it will be a dangerous piece after you are done with it. > HELP > > I am trying to weld cast steel : a flywheel to clutch basket - with > arc > > The weld keeps cracking right down the centre > > any ideas ?? > > cheers everyone > Similar Threads Posted Re: Welding cast iron vice May 16, 2007, 8:13 am Re: Welding cast iron vice May 16, 2007, 6:36 pm PLEASE HELP WITH CAST IRON STICK WELDING September 17, 2008, 10:19 pm Cast iron exhaust manifold repair....what to use? May 21, 2006, 9:52 pm How to Weld cast iron with internal thread November 5, 2008, 10:19 pm Query about welding a logo onto cast iron November 11, 2008, 8:50 pm SEJW - Welding a Honda cast AL intake manifold advice needed... January 5, 2008, 3:14 pm Need help ID-ing steel bar (is is weldable) June 1, 2007, 9:14 pm new steel mill December 7, 2007, 11:50 pm Re: TIG: using A/C for mild steel ? April 11, 2006, 3:33 am