| 摘要 |
PURPOSE: A blow mold manufacturing method is provided to reduce appreciably a manufacturing time of a blow mold by using 3-dimensional CAD system and a light modeling apparatus. CONSTITUTION: A value corresponding to a mold shape to be manufactured is mapped as 3-dimensional CAD data(step1,2). A product mold is performed 3-dimensional modeling using 3-dimensional CAD system, and converted into an STL format. STL data of the STL format is sliced. Overlapping points are searched from the sliced data, and then a cross sectional information is completed by making a closed loop. The mold is machined through a laser working at a light modeling apparatus using the sliced shape data. A light hardening resin is radiated by a laser beam along the mold shape based on the 3-dimensional CAD data, and hardened. The light hardening resin of a liquid state is coated at the harden resin, and harden repeatedly. Therefore, the desired mold is completed by stacking the light hardening resin(step3).
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