| 摘要 |
<p>The invention is directed to a method for explosive cutting, more in particular to a method for explosive cutting using converging shockwaves, and to an explosive cutting device.
The explosive cutting method of the invention comprises the steps of
- providing a projectile (2) with an explosive charge (1) for accelerating said projectile (2) in the direction of an object (4) to be cut;
- positioning said projectile (2) over the object to be cut such that it extends along an intended line of cut, whereby the projectile (2) is spaced from the object to be cut;
- detonating the explosive charge (1) so that the projectile (2) is accelerated in the direction of the object (4) to be cut, wherein
i) the projectile (2) impacts on the object (4) to be cut and the projectile (2) comprises a wave-shaping element (2a,2b) which is shaped such that the impact generates converging shockwaves in the underlying object (4) to be cut causing a crack to be propagated through the object (4) substantially along the intended line of cut; or
ii) the projectile impacts on a wave-shaping element (3) in contact with the object to be cut, the wave-shaping element (3) being shaped such that the impact generates converging shockwaves in the underlying object (4) to be cut causing a crack to be propagated through the object (4) substantially along the intended line of cut</p> |
