Design methodology for smart actuator services for machine tool and machining control and monitoring

This paper presents a methodology to design the services of smart actuators for machine tools. The smart actuators aim at replacing the traditional drives (spindles and feed-drives) and enable to add data processing abilities to implement monitoring and control tasks. Their data processing abilities are also exploited in order to create a new decision level at the machine level. The aim of this decision level is to react to disturbances that the monitoring tasks detect. The cooperation between the computational objects (the smart spindle, the smart feed-drives and the CNC unit) enables to carry out functions for accommodating or adapting to the disturbances. This leads to the extension of the notion of smart actuator with the notion of agent. In order to implement the services of the smart drives, a general design is presented describing the services as well as the behavior of the smart drive according to the object oriented approach. Requirements about the CNC unit are detailed. Eventually, an implementation of the smart drive services that involves a virtual lathe and a virtual turning operation is described. This description is part of the design methodology. Experimental results obtained thanks to the virtual machine are then presented

Practical-Oriented CNC Educational Tool to Promote Retention of Knowledge for First Year Engineering Students

Computer Numerical Control (CNC) technology has been widely applied in almost small and large scale manufacturing industries and being extensively educated in universities. However, most of the commercial CNC machines for educational use are only main for laboratory activities and not suitable for teaching use due to its large structures and complicate functionalities. Often, the machines were not designed to serve as an educational tool. Owing to the restrictions, an appropriate CNC education tool was developed as a potential tool that could promote active learning opportunity across multi-discipline of interest particulary for the first year undergraduate students. Besides, its promote retention of knowledge. The article will emphasize on the construction of a CNC tool appropriate to be integrated in teaching computer-aided design that could stimulate student learning. A survey was conducted on student perceptions about the tool for educational use and take observational study of the novice students attitudes in response to a new situation of learning

Practical Development Of An Open Architecture Personal Computer-Based Numerical Control (Oapc-Nc) System [TJ1189. P535 2005 f rb].

In this research, an open architecture personal computer-based numerical control (OAPC-NC) system that can generate G-code was developed. Dalam pengajian ini, satu sistem kawalan berarkitektur terbuka berdasarkan komputer perseorangan (OAPC-NC) yang dapat menjalankan kod kawalan berangka telah dicipta

Immersive Virtual Reality Error Management Training for CNC Machining Setup Procedures

In order to address the expanding manufacturing talent gap for skilled machinists and limitations with existing machining training programs, this study introduces an immersive Virtual Reality (VR) computer numerical control (CNC) machining training environment CNC machine setup processes with a novel error management-based training curriculum. Current machinist training programs typically require active mentorship from skilled individuals over several years and consume a large amount of materials and tools. In addition, mistakes and errors made during the setup process can create safety risks, waste material, and break equipment, which have not been considered by the existing VR CNC milling training environments. In order to address these operational challenges, a novel error-management based training in VR is proposed, which allows trainees to learn machine setup procedures, common errors and mistakes, and provides an opportunity to practice identifying errors. The training first introduces students to the setup procedure, followed by demonstrations of error cases and identification and management strategies culminating in practice opportunities. Through the VR system, trainees witness a spatial demonstration of the procedure, guided by auditory and text instructions with a realistic error identification practice session. In order to evaluate the impact of the novel error management curriculum and the virtual reality training environment, this study compared the efficacy of three training conditions; video based training, video training with an error management module, and VR training with integrated error management training. The results of the study indicate error management training increases the mistake identification and correction and task completion time. Participant feedback indicates that immersive training increases engagement and reduces distractions during the training phase. Furthermore, participants feel more confident by asking fewer questions in order to operate the CNC milling machine. These findings suggest further developments in error management training for CNC machining training in an immersive VR environment may improve training outcomes and workforce readiness

IC.IDO as a tool for displaying machining processes. The logic interface between Computer-Aided-Manufacturing and Virtual Reality

Abstract This scientific communication investigates the logic interface of a CAM solver, i.e., MasterCAM, into a Virtual Reality (VR) environment. This integration helps in displaying machining operations in virtual reality. Currently, to partially visualize the results of a simulation in an immersive environment, an import/export procedure must be done manually. Here, a software plugin integrated into IC.IDO (by ESI Group) has been realized and fully described. This application allows the complete integration of CAM solver into the VR environment. In particular, the VERICUT solver has been integrated into VR. This kind of integration has never been done yet

IC.IDO as a tool for displaying machining processes. The logic interface between computer-aided-manufacturing and virtual reality

This scientific communication investigates the logic interface of a CAM solver, i.e., MasterCAM, into a Virtual Reality (VR) environment. This integration helps in displaying machining operations in virtual reality. Currently, to partially visualize the results of a simulation in an immersive environment, an import/export procedure must be done manually. Here, a software plugin integrated into IC.IDO (by ESI Group) has been realized and fully described. This application allows the complete integration of CAM solver into the VR environment. In particular, the VERICUT solver has been integrated into VR. This kind of integration has never been done yet

Effectiveness of Distance Learning Computer Numerical Control Based on Virtual Laboratory Using a Metaverse Platform to Improve Students’ Cognitive Ability and Practice Skills

This study analyzes the effectiveness of virtual laboratory-based distance learning as a means of improving the learning outcomes of students’ cognitive abilities and practical skills in the Computer Numerical Control course. This study utilized a pre-experimental design with a onegroup pretest-posttest structure. The research subjects were 31 second-year vocational students from the Department of Mechanical Engineering at Universitas Negeri Padang who had recently participated in four distance learning sessions. The research instruments included a pre-test, a post-test, and a student perception survey to assess the effectiveness of virtual laboratory treatment. The findings of this study demonstrate that the presence of a virtual laboratory enhances learning outcomes in terms of cognitive abilities. The pre-test value for cognitive abilities was 52.04, which increased to 82.36 in the post-test. Similarly, the pre-test value for practical skills was 56.98, which improved to 83.44 in the post-test. These improvements significantly contribute to the enhancement of learning outcomes, as indicated by an average N-gain value of 0.642 in the medium/effective category. We conclude that the use of virtual laboratory media through the Metaverse platform is effective for distance learning. This method reduces the initial requirement of 24 hours of face-to-face learning to just five hours of more effective self-study