Hi All,
I've been doing a project which has required a fair amount of heat shrinking bushings into plates which requires extreme accuracy as regards the diameter of the bushing. For example, a 12.7mm bush going into an aluminium plate heated to 200C needs to have a diameter of 12.728 which I found really hard to achieve with any consistency. The final increments as the target was approached required minute adjustments to the cross feed which were hard to manage accurately.
I got around this problem by setting the tool rest at 5 degrees and using the topslide to advance the tool into the work.
For every 0.1mm the topslide was advanced the tool was fed into the work by .0087mm. As my lathe is getting on a bit (like me) the other advantage was I could lock the cross slide which removed one more possible source of error.
I'm sure this isn't a new idea, but I thought there may be some people out there who haven't come across it and who would find it useful.
Regards,
Alan C.
I've been doing a project which has required a fair amount of heat shrinking bushings into plates which requires extreme accuracy as regards the diameter of the bushing. For example, a 12.7mm bush going into an aluminium plate heated to 200C needs to have a diameter of 12.728 which I found really hard to achieve with any consistency. The final increments as the target was approached required minute adjustments to the cross feed which were hard to manage accurately.
I got around this problem by setting the tool rest at 5 degrees and using the topslide to advance the tool into the work.
For every 0.1mm the topslide was advanced the tool was fed into the work by .0087mm. As my lathe is getting on a bit (like me) the other advantage was I could lock the cross slide which removed one more possible source of error.
I'm sure this isn't a new idea, but I thought there may be some people out there who haven't come across it and who would find it useful.
Regards,
Alan C.