So I am getting ready to finish up a part tomorrow and I need to cut one internal radius 1/8, a external 1/4 radius, and then a 1/4 rounded shoulder.
I am wondering how others cut these. To you ease into it and rough it out? Take it in one go? Do it prior to hitting finished diameters? I have a carbide insert/tool holder for the external 1/4 radius. I plan on grinding a tool for the rounded shoulder. The internal is whats going to be tricky. It is 7" deep inside the bore(bore is fairly large) The radius's are positive (i guess wouldn't be a problem if they went negative). I have been google searching about how people do their's . Even my machinist text book I learned out of for vo-tech is very vague.
The material is Nickel 200 which is a issue all in of itself. Any helpful hints tips or thoughts would be greatly appreciated.
I am wondering how others cut these. To you ease into it and rough it out? Take it in one go? Do it prior to hitting finished diameters? I have a carbide insert/tool holder for the external 1/4 radius. I plan on grinding a tool for the rounded shoulder. The internal is whats going to be tricky. It is 7" deep inside the bore(bore is fairly large) The radius's are positive (i guess wouldn't be a problem if they went negative). I have been google searching about how people do their's . Even my machinist text book I learned out of for vo-tech is very vague.
The material is Nickel 200 which is a issue all in of itself. Any helpful hints tips or thoughts would be greatly appreciated.