The industrialization of 10kW laser machines promotes the use of ultrahigh-power fiber laser cutting machines in the thick sheet metal processing field. Take the ship production as an example, demand is strict on the precision of the hull section assembly. Plasma cutting was often used for rib blanking. To ensure the assembly clearance, cutting allowance was first set on the rib panel, then manual cutting was made during on-site assembly, which increases the assembly workload, and prolongs the whole section construction period. 10kW+ fiber laser cutting machine can ensure high cutting precision, without leaving the cutting allowance, which can save materials, reduce redundant labor consumption and shorten the manufacturing cycle. 10kW laser cutting machine can realize high-speed cutting, with its heat affected zone smaller than that of the plasma cutter, which can solve the workpiece deformation problem. 10kW+ fiber lasers generate more heat than normal lasers, which is a severe tes...