From: muratlanne@gmail.com   
      
   "Richard Smith"  wrote in message news:m1jzc6u3ox.fsf@void.com...   
      
   "Jim Wilkins"  writes:   
      
   > Bending / welding allowances   
      
   You are well ahead of me.  i doubt i can help.   
      
   Press-brake - they have a press-brake, yes - good.   
   Not new when bought.  Is small "fabco.".   
   Seeing if corrections / calibrations needed to go in to the settings, I   
   think.   
      
   --------------------   
      
   Bending allowance can be determined by bending a small test coupon and   
   measuring the resulting lengths. I've seen welders hammer the cooling beads   
   but my night school training didn't cover that aspect, it seemed to be done   
   by experience and judgment instead of pre-planning.   
      
   A practical example is welding a repair in a curved fender. A patch dished   
   to copy the existing fender shape will flatten from weld shrinkage. If   
   there's space behind, like on my pickup truck bed, I can restore the curve   
   with a hammer and dolly, but the integral steel inner wheel well on the car   
   blocks access for a dolly so if it had antique value I'd need to preform the   
   patch 'somewhat' deeper to compensate, or build it up with filler.   
   jsw   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)