After blasting or surface treatment chemically and cleaning by solvent, the metal insert was plated FR1, predried, then adhered by thermal cure, a good effect was gained.
The results indicated that after machining the stress is re arranged and the residual stress decreases; the effect of thermal cycle stress relief treatment is little.
结果表明：加工以后使应力重新分布和使残余应力降低或均匀化，冷热循环去应力处理效果很小。
3
Due to the using of fiber phase conjugating mirror, the deformation formed by the thermaleffect from the slab amplifier has been compensated after four passing.