Session: CIE–31: Graduate Student Poster Symposium

Paper Number: 148441

148441 - A Field-Driven Computer-Aided Design System for Additive Manufacturing and Its Implementation to Additive-Subtractive Hybrid Manufacturing 

Design for additive manufacturing (DfAM) approach is a design methodology to utilize benefits from adopting additive manufacturing technologies. In this approach, all design information related to geometries, materials, and manufacturing processes need to be efficiently integrated into a design. However, most of existing computer-aided design (CAD) systems cannot efficiently support DfAM activities because all information should be represented by only geometric information. This hinders application of DfAM, which maximizes the benefic of AM processes. Thus, a new CAD system is required to support DfAM activities.

The goal of this paper is to develop a field-driven CAD system for supporting DfAM activities in additive-subtractive hybrid manufacturing. To achieve the goal, we implement shape modeling technics based on implicit representation, and we propose a method for creating and utilizing shape-material-process function fields for DfAM activities and a framework to transform the field to use design activities. To validate the effectiveness of the proposed CAD system, two DfAM activities for additive-subtractive hybrid manufacturing process are performed including local shape modification for minimum support structures and internal defect visualization. The results show that the proposed CAD system efficiently modifies the local shape of the target model and visualizes the defect for given AM process parameters.

Presenting Author: Sang-In Park Incheon National University

Presenting Author Biography: .

Authors:

Sungmo Gu Incheon National University
Jaeseung Ahn Incheon National University
Sang-In Park Incheon National University