Re: broaching on a VMC?


"Kirk Gordon" <kg1@xxxxxxxxxxxxxxx> wrote in message
news:46885865.4040500@xxxxxxxxxxxxxxxxxx
snet wrote:
Has anyone ever broached on a VMC? For example a one inch square with
1/8 radius in the corners in mild steel about 1.00 thick. The machine
has a tool changer and why couldn't the hole be drilled to size then
use 3 of 4 broaches to size the square of even an undersized broach
that you could position in the 4 corners and feed down to generate
the square, the spindle is oriented obviously. Or maybe I'm just
thinking way to far outta the box....any thoughts out there?


Here's my thought: Order a new ballscrew and a new set of spindle
bearings right away. That way you won't have to wait for delivery
when the machine croaks.

KG

You have a point when it comes to new VMCs but older ones already have
the bearings brinelled from crashes so a few new dings just level the
playing field.

Fred


.

Relevant Pages

  • Re: angled drilling?
    ... Get a square piece of stock that has sides just greater than the OD of ... Drill your hole size right through the square stock at the required ... along the spindle stock. ...
    (rec.crafts.metalworking)
  • Re: broaching on a VMC?
    ... The machine has a tool changer and why couldn't the hole be drilled to size then use 3 of 4 broaches to size the square of even an undersized broach that you could position in the 4 corners and feed down to generate the square, ... Order a new ballscrew and a new set of spindle bearings right away. ...
    (alt.machines.cnc)
  • Re: broaching on a VMC?
    ... changer and why couldn't the hole be drilled to size then use 3 of 4 ... broaches to size the square of even an undersized broach that you could ... position in the 4 corners and feed down to generate the square, ... decide if the spindle bearings and ball screw could take it, ...
    (alt.machines.cnc)
  • Re: broaching on a VMC?
    ... The machine has a tool changer and why couldn't the hole be drilled to size then use 3 of 4 broaches to size the square of even an undersized broach that you could position in the 4 corners and feed down to generate the square, ... Order a new ballscrew and a new set of spindle bearings right away. ...
    (alt.machines.cnc)
  • Re: broaching on a VMC?
    ... changer and why couldn't the hole be drilled to size then use 3 of 4 ... broaches to size the square of even an undersized broach that you could ... position in the 4 corners and feed down to generate the square, ... Start with thread "Spindle as a press" perhaps: ...
    (alt.machines.cnc)