Have a question.
I have a job that requires us to feed .0255 brass stock on the citizen f10.
collet we can get from hardinge, bushing a no go, its an engineering special. (they only go down to .030 dia. on bushing)
I have cut 1/32 and 1/16 but always stainless. we had to make a long tube to hold the stock steady between the bushing and collet so when feeding there is no bending or twist and the stock snapping off. we have a rotary bushing so the stock wont bust off in the bushing if it gets too tight.
anyhow for the bushing I am thinking of taking a 3/32 bushing and cutting a piece of teflon to slide into the bushing and the bigger ID behind the bushing for support. it will have basically a .0938 dia about .300 long then goto the collet id size with a .0255 hole. in the back its somwhere like .750 dia with a slight press fit to fit into the back bushing . we did this before to keep some stk from scratching on a bigger material and it worked quite well..
The parts are a like a pc pin full rad on the front and then cut off to .3 long. so no cutting the O.D. The maching isnt going to be a problem but the feeding I think will.
I dont use a barfeed for feeding, I use the bushing to pull the stock. also have a 1/16 and .078 id tube for support of the material behind the collet. so whipping behind the coolet isnt a problem
Am I thinking this out correctly? or is it impossible .0255 bras is a hell of alot smaller than .03125 stainless.
any suggestions?
Thanks
I have a job that requires us to feed .0255 brass stock on the citizen f10.
collet we can get from hardinge, bushing a no go, its an engineering special. (they only go down to .030 dia. on bushing)
I have cut 1/32 and 1/16 but always stainless. we had to make a long tube to hold the stock steady between the bushing and collet so when feeding there is no bending or twist and the stock snapping off. we have a rotary bushing so the stock wont bust off in the bushing if it gets too tight.
anyhow for the bushing I am thinking of taking a 3/32 bushing and cutting a piece of teflon to slide into the bushing and the bigger ID behind the bushing for support. it will have basically a .0938 dia about .300 long then goto the collet id size with a .0255 hole. in the back its somwhere like .750 dia with a slight press fit to fit into the back bushing . we did this before to keep some stk from scratching on a bigger material and it worked quite well..
The parts are a like a pc pin full rad on the front and then cut off to .3 long. so no cutting the O.D. The maching isnt going to be a problem but the feeding I think will.
I dont use a barfeed for feeding, I use the bushing to pull the stock. also have a 1/16 and .078 id tube for support of the material behind the collet. so whipping behind the coolet isnt a problem
Am I thinking this out correctly? or is it impossible .0255 bras is a hell of alot smaller than .03125 stainless.
any suggestions?
Thanks