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In the field of wood working, drilling machines are applied to produce bores with special tasks.
Selection of the machines according to their application:
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Application |
Type of machine |
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bores with free assembly works |
bench, pillar drilling machines, knot drilling machines, routing machines |
|
horizontal bores |
long hole milling cutters |
|
several adjacent bores |
dowel-hole drilling machines |
Bores are produced in order to
- manufacture through holes and countersinks to locate screws and mountings;
- manufacture bottom and through holes for dowel joints;
- eliminate defects in wooden parts.
Figure 1 - Bore types
1 bore for flat head screws, 2 bore for cylinder head screws, 3 through hole, 4 bottom bore for dowels, 5 drilled out defect, 6 wood disk to be inserted
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