Modeling and Cost Assessment of FAC-19 Boat Deck Mold Using Reverse Engineering Techniques

Abstract

In this work,a multidisciplinary experience aimed to study how to obtain the 3D model of the upper part (Deck) for fast attack craft FAC-19, designed by Navirex design office in Genova – Italy (This type of craft Used in the Sudanese Navy) and Making a comparison between mold manufacturing techniques in term of cost.The reverse engineering process performed through convert PDF files to DWG format using AutoCAD 2017 software, and a 3D modeling step by the well-known 3D computer graphics software Rhinoceros. The reverse engineering model will be checked through manual measurement tools.The project includes comparison in terms of the basicmaterials costs used for manufacturing a temporary mold and a permanent mold for the deck model, and that after making designs for the molds similar to designs seen in one of the marine factories and according to the recommendations of references in this field, to choose the appropriate mold building technique depending on the number of products required and cost.The results gave insights concerning of the possibility of re-modeling identical FAC-19 boat deck to the product used in Sudanese navy,it alsoshowed that the cost of materials needed to manufacture a permanent mold is nearly five times greater than the cost of materials needed to manufacture a temporary mold. The study recommended re-design and modeling of all boats available to the Sudanese Navy in order to settle the boat industry in Sudan. The study also recommends performing an analysis for the molds structures that were designed in this research to ensure their readiness and ability to be used in the production of FAC-19 boat deck.