Oct 16, 2003 #1 rmsr Aerospace Oct 4, 2003 3 0 0 IN Hi, i am working in kellenberger external cylindrical grinding m/c, i grind valve parts which is very precise. i face ovality problem(using expansion mandrels) as the wall thickness is about 5-8mm, does any of u faced this, please share ur ideas..
Hi, i am working in kellenberger external cylindrical grinding m/c, i grind valve parts which is very precise. i face ovality problem(using expansion mandrels) as the wall thickness is about 5-8mm, does any of u faced this, please share ur ideas..
Oct 16, 2003 #2 ornerynorsk Industrial Feb 5, 2002 3,198 0 0 US Are your mandrels being over-applied or tightened? Upvote 0 Downvote
Oct 18, 2003 Thread starter #3 rmsr Aerospace Oct 4, 2003 3 0 0 IN dear ornerynorsk, we apply minimum pressure as well as we tried other type of clamping too, still we r getting ovality of .001 to .002 mm ragavan Upvote 0 Downvote
dear ornerynorsk, we apply minimum pressure as well as we tried other type of clamping too, still we r getting ovality of .001 to .002 mm ragavan
Oct 21, 2003 #4 Don039 Automotive Sep 25, 2003 3 0 0 US Have you tried to use an hydraulic arbor? Upvote 0 Downvote