Hey all! Wanted to get some expert advice about some oak/walnut that is glued together we are making some plaques out of. I will attach some photos so you all can see what we are doing. The problem we have run into is the wood that is glued together is wanting to warp in a matter of a few days. Some of them will be in a tin border screwed in, but some will not. Wanting a little input on what we could do to help in minimize them from warping.

Thanks in advance!!20190514_112603[1].jpg20190514_112414[1].jpg20190514_112358[1].jpg20190514_112345[1].jpg