Rotary broaching
 

Anyone familiar with a rotary broaching tool made by Slater? The tool
itself consists of a shank ( straight or MT taper) and a rotating
broaching-bit chuck offset 1 degree in the axial. Bits are chucked in
the rotating chuck and, in a manual lathe, the shank goes into the
tailstock. The workpiece rotates as the bit is plunged into the
workpiece. The result is a broached hole, shape determined by the the
broaching bit. My question: what if you wanted to broach a workpiece
that can't be rotated, and wanted to use the tool in a mill quill, would
that work?

cheers
T.Alan

Rotary broaching
 

depends on the shape of the tool and some of the print. We were broached a
flash suppressor shape on our Mazak H400.
On the Mazak lathes we have the z axis didn't have enough hp to push the
broach shape.

"T.Alan Kraus" wrote in message
...
Anyone familiar with a rotary broaching tool made by Slater? The tool
itself consists of a shank ( straight or MT taper) and a rotating
broaching-bit chuck offset 1 degree in the axial. Bits are chucked in the
rotating chuck and, in a manual lathe, the shank goes into the tailstock.
The workpiece rotates as the bit is plunged into the workpiece. The result
is a broached hole, shape determined by the the broaching bit. My
question: what if you wanted to broach a workpiece that can't be rotated,
and wanted to use the tool in a mill quill, would that work?

cheers
T.Alan

Rotary broaching
 

"T.Alan Kraus" wrote in news:437a6bb1$0$54791
:

Anyone familiar with a rotary broaching tool made by Slater? The tool
itself consists of a shank ( straight or MT taper) and a rotating
broaching-bit chuck offset 1 degree in the axial. Bits are chucked in
the rotating chuck and, in a manual lathe, the shank goes into the
tailstock. The workpiece rotates as the bit is plunged into the
workpiece. The result is a broached hole, shape determined by the the
broaching bit. My question: what if you wanted to broach a workpiece
that can't be rotated, and wanted to use the tool in a mill quill, would
that work?

Yes wobble broaches will work in a drill press or mill. The problem is that
the most common ones are "floating" type made for screw machines. They have
two screws on the face which allow you to adjust the tool so that the
broach is on center. On a lathe or screw machine you can loosen the screws,
the with the work rotating slowly bring the broach into contact with the
hole, allowing the tool to float onto center. Then lock the screws down. On
a mill or drill press you would have to indicate the tool. Or better yet
buy one that doesn't have the adjustable center line feature.


--

Dan