Does anyone know if there is a standard typical hardness, or any information for milling machine tables?
Long story short. We have recently purchased a new Fortworth csvbm-5vl, and the table is incredibly soft. Our other mill tables test out at about 55-60 rockwell C, but this fortworth shows 20 rockwell C. This is makes it very difficult to not damage as even a single chip caught under a parallel, or a toe clamp bolted directly to the table will cause a large dent.
I cant recall any of the shops i have been to needing to put parallels under a toe clamp in order to not damage the table.
The supplier claims that this is actually a feature for superior vibration dampening, and to not mark up the parts youre machining. (hardened parallels and vise jaws seem to go against the "marking up parts" theory.. no?...)
They follow this up with saying these benefits outweigh the con of having to resurface the table with a stone every so often. I strongly disagree.
Anyways, has anyone else experienced this? have any suggestions? Is there any companies that create custom meehanite tables?
Long story short. We have recently purchased a new Fortworth csvbm-5vl, and the table is incredibly soft. Our other mill tables test out at about 55-60 rockwell C, but this fortworth shows 20 rockwell C. This is makes it very difficult to not damage as even a single chip caught under a parallel, or a toe clamp bolted directly to the table will cause a large dent.
I cant recall any of the shops i have been to needing to put parallels under a toe clamp in order to not damage the table.
The supplier claims that this is actually a feature for superior vibration dampening, and to not mark up the parts youre machining. (hardened parallels and vise jaws seem to go against the "marking up parts" theory.. no?...)
They follow this up with saying these benefits outweigh the con of having to resurface the table with a stone every so often. I strongly disagree.
Anyways, has anyone else experienced this? have any suggestions? Is there any companies that create custom meehanite tables?