Knifemaking Tuesdays Week 91 - Surface Grinding Blade Steel with the Tormach PSG612 Media
Published: 10 years ago
We're making more Norseman blades this Tuesday so we finally get to show off the new Tormach PSG 612 automatic surface grinder!
IT. IS. AWESOME!
We have the prototype belt attachment which makes the grinder even more super duper awesome, they should just sell it like this. In this vid we're surface grinding some of our RWL34 stainless steel blades before any real machining and before heat treating. Only taking off 0.001-0.002" just to get the pits out from the manufacturing process and to make sure that they're perfectly flat and parallel.
When using belts on a surface grinder like this knifemakers have been known to take off 0.005-0.010" easily, which is CRAZY TALK if you're using a stone wheel. With a wheel you can usually only take off 0.001" MAX, often less than that, we were doing a lot of 0.0002" passes before belts. There is a huge selection of belts available in 1x42" and changing them is fast and easy. It really is the future of surface grinding. With some attention and practice you should be able to hold 0.0002" tolerance with belts just like with stones, but it's way faster. All in all, we're in love with this machine, especially with belts!
Hope you enjoyed it, more videos to come. We have a vid coming up of surface grinding titanium.
IT. IS. AWESOME!
We have the prototype belt attachment which makes the grinder even more super duper awesome, they should just sell it like this. In this vid we're surface grinding some of our RWL34 stainless steel blades before any real machining and before heat treating. Only taking off 0.001-0.002" just to get the pits out from the manufacturing process and to make sure that they're perfectly flat and parallel.
When using belts on a surface grinder like this knifemakers have been known to take off 0.005-0.010" easily, which is CRAZY TALK if you're using a stone wheel. With a wheel you can usually only take off 0.001" MAX, often less than that, we were doing a lot of 0.0002" passes before belts. There is a huge selection of belts available in 1x42" and changing them is fast and easy. It really is the future of surface grinding. With some attention and practice you should be able to hold 0.0002" tolerance with belts just like with stones, but it's way faster. All in all, we're in love with this machine, especially with belts!
Hope you enjoyed it, more videos to come. We have a vid coming up of surface grinding titanium.