Method for obtaining an object through the use of machine tools
A technology of objects and machine tools, applied in the field of objects, to achieve the effect of fast methods
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Embodiment approach
[0077] First preferred embodiment of the present invention:
[0078] refer to Figure 1 to Figure 3 , in a first possible embodiment of the invention an object with a "core" made of polystyrene is realized.
[0079] "Core" refers to a central structure, and thus to an underlying structure that may be provided in a single material or in two or more materials bonded to each other.
[0080] The base structure can be realized by machining by machine tool exactly as described in the previous publication EP2346374, but mold casting is also possible.
[0081] As described in the aforementioned publication EP2346374, one or more polystyrene blocks may be machined, including numerically controlled machines such as milling machines or hot wire cutters.
[0082] The final shape of the object may be obtained from a single polystyrene block 2 which is processed according to the final shape by one or more machine tools, or the final shape may be obtained by varying the polystyrene block to...
no. 3 approach
[0106] In the third embodiment of the present invention:
[0107] This third embodiment is in many respects the same as the previous ones, and in Figure 5A and Figure 5B is described in.
[0108] refer to Figure 5A, as described in the other embodiments, a basic structure is realized comprising blocks, preferably made of polystyrene and preferably in machine tools (also for all embodiments involving polystyrene hot wire), the blocks are coated exactly as described in the first and second embodiments with a reinforcing coating made of a dense rigid polyurethane material that can be sprayed.
[0109] Subsequently, before the flexible polyurethane spray foam is applied by spraying, a pre-shaped block 10 is applied, preferably a pre-shaped block made of a soft material such as rubber or foam rubber itself.
[0110] Thus, a certain number of preformed blocks can be stored in a warehouse, which preformed blocks can further be cut to size and structurally arranged - for exampl...
no. 4 approach
[0113] In the fourth embodiment of the present invention:
[0114] In this case, the same approach can be applied to the structural "core", not necessarily made of polystyrene, but possibly coated with structural polyurethane, without prejudice to all relevant matters previously stated.
[0115] Therefore, in this case, if it is not possible to machine the base structure material, but to obtain the base by a different machining process, such as in a mold for plastic materials or in a pipe bender for metal materials For structural materials, processing by machine tools can be omitted.
[0116] Therefore, it may not be necessary to use a structural polyurethane coating process to impart rigidity to the structure, ie a dense rigid polyurethane may not be required.
[0117] In this case, the operation of applying the wadding can be carried out as described above, by spraying or by gluing the preform directly onto the "core" or onto a polyurethane-coated core, and wherein the core...
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