| 摘要 |
The present invention relates to a saw bar having a channel system (14) and a plurality of metal plates (1, 2 and 3). These metal plates have been joined together by laser welding. The invention also relates to a method for manufacturing such a saw bar. According to the invention there is provided in inner portions (27) a during operation of the saw bar heavily loaded portion (11) at least one inner weld joint (28 and/or 29 and/or 30 and/or 31) beside the channel system (14) in order to effectively reinforce said portion (11) and define a liquid sealing to a channel system (14) provided therein. |
