A comparative analysis of computer-aided design team performance with collaboration software

Abstract

With the restriction of the diameter and feed direction of the cutting tool in milling process, electric discharge machining (EDM) is the only effective machining technology for the uncut regions with internal sharp corner. Automatic design of the electrode is of great significance for the CAD/CAM integration of EDM technology. In current CAD/CAM system the electrode design is done manually by technologists based on experience and knowledge. The procedure is tedious and timeconsuming. In this paper, a novel approach is proposed to automatically generate the electrode CAD model taking the topological vertices of uncut region as the hint. The hint feature points are innovatively defined and classified into three types: internal-sharp points, cutting-into points and interacting points. Based on this, our approach firstly determines the faces and the type of uncut region. Secondly, the interacting region is decomposed into the isolated region by reconstructing the topological structure, patching the split face and partitioning the shared face. Thirdly, the modeling parameters are extracted from the isolated region. Finally, the electrode CAD model is created by executing a set of generic modeling operations. The electrode CAD model can be directly used in the process planning, so as to promote the integration of CAD and CAM.

Comparing Collaborative Cad Modelling Patterns of High-Performing and Low-Performing Teams

“…For the purposes of this study, a theoretical sampling approach called Polar types sampling is used. The objective of this approach is to observe contrasting patterns in the data in a simpler manner by sampling extreme (e.g., very high-and very low-performing) cases (Eisenhardt and Graebner, 2007). Therefore, out of 14 design teams participating in the design project course, two of the best-performing teams, as well as two of the worst-performing teams were further analysed for the purposes of this paper.…”

An Analytical Framework for Collaborative Cloud-Based Cad Platform Affordances

“…Some of these studies focused on differences between individual designers and design teams using synchronous CAD. Eves et al (2018) conducted an experiment using Siemens NX 8, focusing on efficiency, emotion and communication. A related study focused on emotion by Zhou et al (2021) using Onshape.…”

An Exploratory Study Comparing CAD Tools and Working Styles for Implementing Design Changes

“…A limited number of previous studies have aimed to investigate collaborative CAD teams, some even using synchronous collaborative CAD tools. Eves et al (2018) developed their own collaborative computer-aided design software, Multi-user CAD (MUCAD) which allows synchronous design. This enabled a comparison of the output of four-person teams using MUCAD and traditional CAD (sharing models through email).…”