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Unlike routing where the cutters leave a radius in corners, water-jet machines are programmed to cut the exact shape required by the finished component. This means right-angled corners, sharp hairpin bends and curves prove no problem.
Another advantage is where narrow deep slots and slits are required—when routing a 3mm wide slot, it is necessary to use a 3mm cutter, however, these cutters can only be made so long before they become unstable and liable to shattering - and if a 100mm deep pocket is required, this becomes an issue - not a problem when water jetting.
Both machining processes can actually be combined to give the best of both worlds when it comes to providing foam solutions.
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