Hi All,
Thank you for reading my post.
My grandad left me his Tom Senior Horizontal Mill with vertical head and I’m now starting to put it to use.
I’ve been using the mill to machine two flat sides on a 2” diameter steel bar that will be used as pins on a digger.
I need to remove about 8mm depth off each side of the bar. So it has 2 radius sides and 2 flat sides.
My question is this, how do know what the optimum cutting depth is, the best cutter rotation speed and best X-Axis feed speed for a given job?
For example, should I have the cutting depth at 4mm, make 2 passes, at 80rpm on the cutter with the slowest possible feed rate
Or
Should I make 8 passes at 1mm depth of cut at 800rpm with the fastest feed rate?
I have tried both, the fast setup gave me fine chippings but produced a lot of heat and the slow pass gave me a lot of chatter.
I would appreciate a steer on this.
Thank you for reading my post.
My grandad left me his Tom Senior Horizontal Mill with vertical head and I’m now starting to put it to use.
I’ve been using the mill to machine two flat sides on a 2” diameter steel bar that will be used as pins on a digger.
I need to remove about 8mm depth off each side of the bar. So it has 2 radius sides and 2 flat sides.
My question is this, how do know what the optimum cutting depth is, the best cutter rotation speed and best X-Axis feed speed for a given job?
For example, should I have the cutting depth at 4mm, make 2 passes, at 80rpm on the cutter with the slowest possible feed rate
Or
Should I make 8 passes at 1mm depth of cut at 800rpm with the fastest feed rate?
I have tried both, the fast setup gave me fine chippings but produced a lot of heat and the slow pass gave me a lot of chatter.
I would appreciate a steer on this.