Abstract: Synchronization in laser intelligent manufacture system is analyzed in details. Laser system and robot system are under the synchronous control by means of PROFIBUS and COMM techniques. An interface control circuit is designed to realize monitoring of robot system and laser system, and dealing with various malfunctions in processing. Multithreading application is carried out to ensure synchronization and real-time proc-essing in the control of the computer. The system runs stable and it satisfies the demands of practical application.

Key words: Multithreading, Laser intelligent manufacture system, Synchronous control