5. Thermal cutting deformations
Waterjet cutting is of course not covered by this paragraph. Of course, the use of any kind of thermal process on a metal part is bound to result in deformations that will be more or less significant and more or less disruptive to the operation.
5.1 Basic deformation phenomena
The basic phenomenon is very similar to what boilermakers call shrinkage heat: if you rapidly heat a 20 mm thick sheet, for example, you'll get a red zone on the upper surface, while the lower surface is much cooler (figure 14 a). The red-hot metal is forced by the laws of physics...
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Thermal cutting deformations
Use of cutting tools
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