What's the problem of deformation in steel plate cutting?

Question 1: if the internal stress of steel plate is not completely eliminated, how to prevent cutting deformation?

There are two measures we can take to solve this problem. One is to conduct annealing treatment first, so as to completely eliminate the internal stress. Second, it is to use intermittent dot to cut, and do not be afraid to cut at the end. After cutting, let stand for about 10 minutes, so that the deformation can be reduced to a certain extent.

Question 2: what cutting machine is needed to cut the beveled steel plate?

If the work piece is not very complex, then flame cutting can be used. If you want better, you can use plasma cutting with wireless rotation.