M. Roberts
Cast Iron
- Joined
- May 11, 2021
People,
I hope all is well. Here is a debate; a co-worker claims that in order to achieve the flattest, most accurate part, one must grind/spark out dry, without coolant. YFI we are grinding silicon carbide with VIT bonded diamond wheels. We generally have the part directly on the mag chuck, and use parallels to block the part in. I understand the theory, but my thoughts: 1)the wheel will get hot/warm and glaze over, thus not cut as free. 2) with the mag chuck on, without coolant, it itself will get warm and distort. Again, the dry technique come from the thought that the coolant works its way under the part, and lifts it away from the chuck....opinions, please.
I would be of a mind to try to use a vacuum chuck to hold the part, a buffer from the heat of the chuck....
Mark
I hope all is well. Here is a debate; a co-worker claims that in order to achieve the flattest, most accurate part, one must grind/spark out dry, without coolant. YFI we are grinding silicon carbide with VIT bonded diamond wheels. We generally have the part directly on the mag chuck, and use parallels to block the part in. I understand the theory, but my thoughts: 1)the wheel will get hot/warm and glaze over, thus not cut as free. 2) with the mag chuck on, without coolant, it itself will get warm and distort. Again, the dry technique come from the thought that the coolant works its way under the part, and lifts it away from the chuck....opinions, please.
I would be of a mind to try to use a vacuum chuck to hold the part, a buffer from the heat of the chuck....
Mark