| 摘要 |
<p>A process and device are used for cleaving or slitting a rigid sawn product (10) in particular wood with a modulus of elasticity preferably of the order of 50,000 to 400,000 km/cm<2>. A narrow tool having chip removal elements, in particular a circular saw blade (15), produces at a cutting speed above 40 m/s approximately a slit (38) having a specific width in the sawn product (40). After passing through the chip removal elements, a shaped wood element (12) is continually bent (28) from the cleavage plane (11) from the remainder (13) of the sawn product (10). In order to reduce heating effects on the tool as a result of friction between the wood and tool, the profiled wood element (12) is continually bent back in such a way as to stand away from the circular saw blade (15) after leaving the chip removal elements.</p> |
