(Brown and Sharpe #2G)
I am having a problem with a 1.5" wide circular form tool for a fitting made from 1215 steel.
I know the machine it is on needed some TLC so I did the proper maintenance on it and got good results on all other tools.
The material starts at .875 O.D. and gets turned to .555
The tool chatters and gets knocked off center. I tried slowing the spindle down with no luck. I then slowed the feed down with no luck.
I had the feed and spindle speeds higher at first but before cleaning out the gibs and changing out the cam rollers. I am leaning towards increasing the feed rate due to the wide tool "grabbing" the material. I feel that the increased surface area of the tool is spreading the feed pressure out too much and isnt pushing it hard enough to force it to cut.
I have been at this for a while and was wondering if anyone had any advice.
Thanks in advance,
-Dan
I am having a problem with a 1.5" wide circular form tool for a fitting made from 1215 steel.
I know the machine it is on needed some TLC so I did the proper maintenance on it and got good results on all other tools.
The material starts at .875 O.D. and gets turned to .555
The tool chatters and gets knocked off center. I tried slowing the spindle down with no luck. I then slowed the feed down with no luck.
I had the feed and spindle speeds higher at first but before cleaning out the gibs and changing out the cam rollers. I am leaning towards increasing the feed rate due to the wide tool "grabbing" the material. I feel that the increased surface area of the tool is spreading the feed pressure out too much and isnt pushing it hard enough to force it to cut.
I have been at this for a while and was wondering if anyone had any advice.
Thanks in advance,
-Dan