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Journal PROCEEDINGS IN MANUFACTURING SYSTEMS |
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ISSN 2343–7472 ISSN-L 2067-9238 |
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Journal PROCEEDINGS IN MANUFACTURING SYSTEMS □
Volume 20, Issue 1, 2025 Use of reverse engineering principles to design a
twist drill sharpening device · Veronika IVANOVA, Ani BONEVA, · Megan ASENOVA and
George-Christopher VOSNIAKOS, Injection
molding process improvement by structured simulation experiments: a case
study · Constantin-Rosmin MANGEAC, George CONSTANTIN, Transfer
learning and limited data learning techniques applied to autonomous robotics Integration
of CAD-guided automated insert placement for enhanced 3D printed component
assembly Use of reverse engineering principles to design a twist drill
sharpening device 1) Eng., Department of Digital Production Systems, “Gheorghe Asachi”
Technical University of Iași, România 2) Assoc. Prof., PhD, Department
of Digital Production Systems, “Gheorghe Asachi” Technical University of Iași,
România 3) Eng., Department of Machine Manufacturing Technology, “Gheorghe
Asachi” Technical University of Iași, România 4) Lecturer, PhD, Department of
Digital Production Systems, “Gheorghe Asachi” Technical University of Iași,
România 5) Assoc. Prof., PhD, Department
of Machine Manufacturing Technology, “Gheorghe Asachi” Technical University
of Iași, România 6)
Prof.,
PhD, Department of Machine Manufacturing Technology, “Gheorghe Asachi”
Technical University of Iași, România Abstract: The
sharpening of twist drills is an important issue for ensuring optimal
performance in the exploitation of these categories of tools. The study of
the specialized literature highlighted the existence of distinct methods and
equipment currently used for sharpening twist drills. It was found that by
using principles of the reverse engineering method it is possible to identify
innovative solutions that would ensure the necessary conditions for the
correct sharpening of the twist drills in small mechanical workshops, which
do not have specialized sharpening machines. A solution for a
sharpening device was proposed, based on obtaining a cylindrical shape of
the drill tooth flank. The
possibility of using the device on a universal lathe was considered. The
manufacturing of the device and the performance of preliminary experimental
tests confirmed the possibilities of using the proposed device for sharpening
twist drills. Key words: twist drill, sharpening, reverse
engineering, cylindrical surface, adaptable device on universal lathe. Design of a WI-FI-enabled ECG device for
telemedicine and ambulatory monitoring in a robotic platform Veronika IVANOVA1,*, Ani BONEVA2 1, *) Assist. Prof. PhD, Eng. Department of Robotized and
Mechatronics Intelligent Systems, Institute of Robotics - Bulgarian Academy
of Sciences, Sofia, Bulgaria 2) Eng., Department of Communication and Computer
Systems, Institute of Information and Communication Technologies – Bulgarian
Academy of Sciences, Sofia, Bulgaria Abstract: This article presents a robotic platform integrated with a Wi-Fi-enabled ECG device designed for telemedicine and ambulatory monitoring. The advancement of portable and wearable ECG monitoring systems remains a key focus in the development of health-related technologies. An ECG device is a critical medical tool used to record the electrical activity of the heart over a specified period, playing a vital role in diagnosing heart diseases and monitoring cardiovascular health. Our objective is to develop a new generation of robotic tools that enhance healthcare and patient management. Specifically, we aim to design an innovative Wi-Fi-enabled ECG device for non-invasive heart rhythm monitoring, capable of receiving, storing, visualizing, and transmitting high-quality electrocardiographic signals remotely. This device enables comprehensive ECG analysis and continuous patient monitoring while seamlessly integrating with other diagnostic and therapeutic functions within the robotic platform's operational framework. A key feature of the proposed device is its ability to detect and promptly alert users to abnormal heart rhythms, making it highly effective for telemedicine and ambulatory care. One of its most notable innovations is the incorporation of the MAX30003 chipset, which facilitates real-time ECG monitoring in portable and wearable systems suitable for both remote medical consultations and personal health tracking. Looking ahead, the system is designed to evolve toward autonomous functionality. Unlike other similar devices, innovative solutions related to the construction and connections of the ECG with the Robotic System are presented here. The research team has extensive experience in surgical robotics, and this development builds upon previous work in the field. Key words: Wireless ECG Device, Portable Monitoring
Devices, Robotics, Surgical Robotics, Health Monitoring. Injection molding process improvement by
structured simulation experiments: a case study Megan ASENOVA1 and George-Christopher VOSNIAKOS2,* 1) MSc graduate student, School of Mechanical
Engineering, National Technical University of Athens, Athens, Greece 2) Prof., PhD, Manufacturing Technology Laboratory,
School of Mechanical Engineering, National Technical University of Athens,
Athens, Greece. Abstract: Analysis of injection molding of a food packaging container cover through a finite number of simulation runs is presented. Firstly, simulation of the product was set up on Moldex3DTM software, by a ‘screening’ round of simulation experiments replicating the actual process conditions and matching the process metrics in the injection and packing phases, including the emergence of air traps and the lack of sink marks. In this way, the simulation model was validated. In addition, the degree of influence of each process parameter on the final result was investigated by ANOVA. Based on these insights, Taguchi DoE was implemented on the simulation model aiming at achieving the desired part weight and the minimum clamping force. The best combination of the main process control parameters was obtained highlighting the role of the melt temperature and the Material Flow Index. Key words: injection molding, thin wall; melt
temperature, MFI, part weight, clamping force. Transfer learning and limited data learning
techniques applied to autonomous robotics Constantin-Rosmin MANGEAC1,*,
George CONSTANTIN2 1) PhD Student, Doctoral School of Industrial
Engineering and Robotics, POLITEHNICA Bucharest, Romania 2) Prof., PhD, Robots and Manufacturing Systems
Department, POLITEHNICA Bucharest, Romania Abstract: This study reviews recent
developments in the field of transferable learning, with direct applicability
to autonomous robotics. Through a comparative approach, the paper reviews the
conceptual and methodological foundations, highlighting how few-shot and
zero-shot learning techniques support the adaptability of robots to novel
tasks under data-limited conditions. Relevant applications ‒
ranging from navigation and manipulation to human-robot interaction ‒
are discussed, illustrating the capabilities of these methods. The study also identifies a
number of major constraints that prevent the widespread adoption of these
techniques and provides recommendations for future research oriented towards
transfer scenarios from a simulated environment to reality and between
robotic platforms with different kinematics. Key words: Mobile robot, Transfer learning (TL), Few-Shot Learning (FSL), Zero-Shot Learning (ZSL), Learning by demonstration (LfD), Artificial neural network (ANN), Reinforcement Learning (RL), Autonomous robotics, Collaborative robot, Autonomous navigation. pp. 35-41 Integration of
CAD-guided automated insert placement for enhanced 3D printed component
assembly Dragoș-Alexandru CAZACU1,*, Teodor-Cristian NAȘU2, Mihail HANGA3, Carmen-Cristiana CAZACU4, Florina CHISCOP4 1) Eng., PhD, Education Team, PTC Eastern Europe SRL, Bucharest,
Romania, 2) Student, Industrial Engineering and Robotics Fac, National University
of Science and Technology POLITEHNICA Bucharest, Romania, 3) Master Student, Industrial Engineering and Robotics Fac., National
University of Science and Technology POLITEHNICA Bucharest, Romania, 4) Lecturer, PhD, Robots and Manufacturing Systems Dep., National
University of Science and Technology POLITEHNICA Bucharest, Romania Abstract: The paper presents an automated
system for embedding brass threaded inserts into 3D-printed parts, reducing
the variability of manual methods (misalignment, insufficient heating,
excessive force) and the limitations of directly printed small threads (M4
and below). Target applications include rapid prototyping, low-volume
production, and functional parts in aerospace and automotive sectors, where
reliable joints enable repeated assembly. The device reads insert coordinates
from Onshape (Parametric cloud CAD) via mate connectors (custom orientation
systems in Onshape), ensuring faithful design-to-execution transfer. Its
kinematics use a compact H-structure with a single-belt XY stage driven by
stepper motors, plus a four-screw Z axis for uniform vertical motion and high
stiffness. Inserts are automatically fed from a gravity tube through a
servo-actuated lever and separator, then embedded with a heated tool head
monitored by a thermocouple—tuned to 225 °C for PLA and 265 °C for
ABS. A capacitive touch sensor provides real-time depth control (6 mm for M3,
8 mm for M4), while an inverted vise secures the workpiece above the tool
head for optimal access. Integrating CAD data with Python motion-control
scripts yields a low-operator workflow that improves repeatability and
scalability. Tests on 3D printed parts of PLA and ABS with 3 to 6 perimeters
show positional accuracy of ±0.05–0.07 mm, cycle times of 3.8–4.6 s per
insert, and repeatability with 0.025–0.035 mm standard deviation—improving
efficiency over manual methods by 73–75%. Thanks to modular design,
compatibility with standard CAD platforms, and potential for adaptive tool
heads, the system is well-suited for integration into automated
additive-manufacturing post-processing lines and broader industrial adoption. Key
words: 3D Printing, Threaded Inserts, CAD, Automation,
Precision, Brass, Motion, Bonding. |
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