| 摘要 |
<p>PCT No. PCT/DE87/00466 Sec. 371 Date Jun. 10, 1988 Sec. 102(e) Date Jun. 10, 1988 PCT Filed Oct. 14, 1987 PCT Pub. No. WO88/02683 PCT Pub. Date Apr. 21, 1988.A method and a device serve for cutting or slotting rigid material, in particular wood, having a modulus of elasticity of, preferably, approximately 50,000 to 400,000 kg/cm2. A gap of finite width is cut into the material by a narrow tool comprising cutting elements, in particular a circular saw blade, at a cutting speed of over 40 m/s. After passage of the cutting element a timber section is always lifted off the remainder of the material and bent out of the plane of the gap. In order to reduce the thermal loading of the tool, which is generated by the friction between the timber section and the tool, the timber section is always bent off in such a manner that once the timber section has left the cutting elements, it is spaced a certain distance from the circular saw blade.</p> |
