Alexandru DUMITRACHE

Title: Optimal Techniques for Complete Description of 3D Shapes through Robotized Laser Scanning to Realize Inline Reproduction Copies and Quality Control

Supervisor: Professor Theodor BORANGIU

Final presentation in 2012

This research project aims to integrate and optimize 3D scanning techniques for surfaces with complex geometry, automatic generation of roughing and finishing toolpaths for milling arbitrary 3D surfaces from raw stock materials on CNC machines, and 3D inspection and quality control. The experimental platform include a short-range laser scanning sensor mounted on a 6-DOF robot arm, a rotary table for holding the part being digitized and 4-axis CNC milling machine for reproducing the scanned surfaces.

The thesis will present algorithms for data acquisition and robot-sensor synchronization, generation and optimization of scanning patterns, point cloud filtering and alignment, depth map surface representation, image processing techniques for depth maps, compensation for 3D cutting tool profiles, high speed machining techniques with tool engagement control and feature extraction from 3D data for quality control of parts obtained by CNC milling and/or robotic assembly.