Stang Bladeworks
Aluminum
- Joined
- Jul 9, 2019
I am wondering if anyone is willing to share how they surface grind thin parts. I use my surface grinder almost exclusively on thin stock. My issue is that the magnet is strong enough to suck the part flat so when I grind it any small warp is retained. I know the grinder is good because when I grind thicker parts they come out perfectly flat. If I test a thicker part the surface is well within .0005" which is plenty for me.
I know this is a common(ish) issue because I have found some info about it online. I have read all the threads I can find on the topic. I have seen and tried a few suggestions with varying success. So far I have not been able to get a perfectly flat thin part. I have had the best luck by frequently flipping the part to help remove some of the warp.
I have heard of people gluing a part down, using tape, placing something under the part like paper etc. Ideally I would like to find a way to fixture the part and grind one side perfectly flat then use the mag chuck to grind the other side. Flipping the parts produces OK results but its time consuming and makes it hard to hit a precise thickness.
My machine is a small 18" manual reid from the 40's that I restored with the help of a few people on this forum. the chuck is a manual magnet chuck. In case it isn't obvious from my beginner question I have no / minimal machining or grinding experience so please forgive any oversights I may have made.
I am also interested in workholding methods for non ferrous materials, specifically titanium.
Most materials I grind are .150" or less in thickness.
Any advice is greatly appreciated, thanks.
I know this is a common(ish) issue because I have found some info about it online. I have read all the threads I can find on the topic. I have seen and tried a few suggestions with varying success. So far I have not been able to get a perfectly flat thin part. I have had the best luck by frequently flipping the part to help remove some of the warp.
I have heard of people gluing a part down, using tape, placing something under the part like paper etc. Ideally I would like to find a way to fixture the part and grind one side perfectly flat then use the mag chuck to grind the other side. Flipping the parts produces OK results but its time consuming and makes it hard to hit a precise thickness.
My machine is a small 18" manual reid from the 40's that I restored with the help of a few people on this forum. the chuck is a manual magnet chuck. In case it isn't obvious from my beginner question I have no / minimal machining or grinding experience so please forgive any oversights I may have made.
I am also interested in workholding methods for non ferrous materials, specifically titanium.
Most materials I grind are .150" or less in thickness.
Any advice is greatly appreciated, thanks.