| 摘要 |
(1) impinging one laser beam on the work surface to produce a heated path being produced by the laser beam heating a series of points on said surface to their oxygen ignition temperature, (2) impinging a stream of scarfing oxygen onto said heated path, thereby causing an instantaneous scarfing cut to begin along said path, and (3) continuing the follow of scarfing oxygen until the desired length of cut has been produced.
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