Avsfan135
Cast Iron
- Joined
- Jan 19, 2011
- Location
- Fort Collins, Colorado
Forgive me please I posted this in abrasive machine then here because I was hoping for more views here!!
I have a Harig surface grinder at work. (pics to follow) We just got it hooked up coolant tank cleaned a new diamond dresser.
I am trying to learn grinding (totally green!) we really have no use for the grinder at work but it's just sitting there so we got it wired.
I tried to make some blocks 1.25x1.5x2.0 out of 17-4
I got really close on the 1.250 dim. I got 1.2501-1.2502 but I overshot the 1.5 by a few tenths.
What I want to do is make some blocks out of something I can harden. We have 4140hf annealed 4130q&t
Now for the questions!!
What should I make the blocks out of?
How big should I make them before hardening?
Does it shrink or grow at all?
Is a rough cut on the mill ok or should I grind before hardening?
What is the best way to ensure squareness? Flatness and size I understand but squareness I'm lost in how to controll or adjust for that.
I guess that's all for now
Any and all suggestions or comments are very welcome!
Thanks
Nick
I have a Harig surface grinder at work. (pics to follow) We just got it hooked up coolant tank cleaned a new diamond dresser.
I am trying to learn grinding (totally green!) we really have no use for the grinder at work but it's just sitting there so we got it wired.
I tried to make some blocks 1.25x1.5x2.0 out of 17-4
I got really close on the 1.250 dim. I got 1.2501-1.2502 but I overshot the 1.5 by a few tenths.
What I want to do is make some blocks out of something I can harden. We have 4140hf annealed 4130q&t
Now for the questions!!
What should I make the blocks out of?
How big should I make them before hardening?
Does it shrink or grow at all?
Is a rough cut on the mill ok or should I grind before hardening?
What is the best way to ensure squareness? Flatness and size I understand but squareness I'm lost in how to controll or adjust for that.
I guess that's all for now
Any and all suggestions or comments are very welcome!
Thanks
Nick