| 摘要 |
<p>A circular saw blade (1) hs a rolled groove (2) both sides. The distance of the rolled groove, with reference to the radius of the saw blade and measured from its periphery, measures 1/10r up to 8/10r, preferably between 3/10r and 6/10r. The rolled groove is produced under high pressure so that the ratio of the depression with reference to the radius of the saw blade is 1/10 or up to 1/180, preferably 1/40 to 1/100. Relationship between saw blade thickness and radius is smaller than 0.022, preferably smaller than 0.012.</p> |
