05-29-2016, 08:10 AM
From that last photo I think I spy a wheel arbor puller. Pretty cool that you got one of those too!
I think one of the more common errors when new to this is the dressing speed. It's hard to describe, but your speed across the wheel with the cross slide (actually the Z axis, parallel to spindle rotation axis) should be "brisk." Go too slow and you will be making the wheel too smooth, and likely get excessive heat on the diamond.
A general rule of thumb: Soft material, use a hard bond. Hard material, use a soft bond.
The orange bond in a Norton wheel is often an N or M bond, very pliable. Since it appears you were trying to grind a softer steel, you want an H or I bond and a friable grain structure. A good ol' Norton 32A-46HVBE is a great general purpose wheel to start with. The pattern I think I see is a little bit of burning and some chatter. That's often a clogged wheel that you get when the bond isn't allowing the grains to break away to expose new sharp edged grains.
You-Tube videos can help a lot, if I have time I'll find a few.
I think one of the more common errors when new to this is the dressing speed. It's hard to describe, but your speed across the wheel with the cross slide (actually the Z axis, parallel to spindle rotation axis) should be "brisk." Go too slow and you will be making the wheel too smooth, and likely get excessive heat on the diamond.
A general rule of thumb: Soft material, use a hard bond. Hard material, use a soft bond.
The orange bond in a Norton wheel is often an N or M bond, very pliable. Since it appears you were trying to grind a softer steel, you want an H or I bond and a friable grain structure. A good ol' Norton 32A-46HVBE is a great general purpose wheel to start with. The pattern I think I see is a little bit of burning and some chatter. That's often a clogged wheel that you get when the bond isn't allowing the grains to break away to expose new sharp edged grains.
You-Tube videos can help a lot, if I have time I'll find a few.