| 摘要 |
PROBLEM TO BE SOLVED: To cut a high-strength fiber reinforced plastic plate into an accurate outer shape with extreme efficiency by an inexpensive cutting blade.SOLUTION: In this cutter, the high-strength fiber reinforced plastic plate 10 is mounted to a receiving base 1 and cut by being punched by a Thomson blade 3. The Thomson blade 3 is planar carbon steel having a carbon content of 0.5-0.7%. The planar carbon steel is bent or curved into a prescribed shape and quenched so that a cutting edge 4 has an HRC hardness of 64 or higher. A blade surface inclined angle (α) of a cross sectional shape orthogonal to a longitudinal direction of the cutting edge 4 is set to be larger than 25° and smaller than 60°. |
