| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser processing device capable of efficiently cooling an LD by air cooling and achieving high output of the LD with a simple structure.SOLUTION: A laser processing device 10 comprises: a LD unit 44 containing a LD 50; a heat exchanger 46 for cooling the LD unit 44; and a housing 14 accommodating the LD unit 44 and the heat exchanger 46. The housing 14 comprises a cooling part 16 for sucking and cooling air in the housing 14 and then blowing the cooled air into the housing 14 so that the heat exchanger 46 is cooled by the air blown from the cooling part 16.SELECTED DRAWING: Figure 2 |
