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ADITIVE MANUFACTURING OF M300 STEEL CUTTING TOOLS BY SELECTIVE LASER MELTING 选择性激光熔化增材制造m300钢刀具
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023055
TOMAS MACHAC, PETER POKORNY, JANA PETRU, JAKUB HRBAL, MARCEL KURUC, TOMAS VOPAT
{"title":"ADITIVE MANUFACTURING OF M300 STEEL CUTTING TOOLS BY SELECTIVE LASER MELTING","authors":"TOMAS MACHAC, PETER POKORNY, JANA PETRU, JAKUB HRBAL, MARCEL KURUC, TOMAS VOPAT","doi":"10.17973/mmsj.2023_10_2023055","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023055","url":null,"abstract":"The article presents preliminary research on the application of additive manufacturing in the production of monolithic cutting tools for various machining operations as a new way of producing cutting tools with innovative potential. The necessary steps to produce functional cutting tools via Selective Laser Melting have been investigated. Two sets if samples were printed via SLM machine ReniShaw AM 400 from maraging steel M300 in collaboration with VSB-TU Ostrava. First set of samples were semi-finished rods and second set were cutting tools with printed geometry. Machine operations such as turning and grinding were used to achieve functionality of cutting tools so that can be used in the machining process. Experimental part of article is focused on investigating of machining capabilities of printed cutting tools.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EFFECT OF GEOMETRY AND SURFACE DISTRIBUTION OF HOLES ON SOUND AND LIGHT ABSORPTION PROPERTIES OF 3D-PRINTED PETG MATERIALS 孔的几何形状和表面分布对3d打印pet材料吸声和吸光性能的影响
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023061
MARTIN NEVRELA, MARTIN VASINA, PAVEL HRBACEK, VLADIMIR DEKYS
{"title":"EFFECT OF GEOMETRY AND SURFACE DISTRIBUTION OF HOLES ON SOUND AND LIGHT ABSORPTION PROPERTIES OF 3D-PRINTED PETG MATERIALS","authors":"MARTIN NEVRELA, MARTIN VASINA, PAVEL HRBACEK, VLADIMIR DEKYS","doi":"10.17973/mmsj.2023_10_2023061","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023061","url":null,"abstract":"Noise and lighting are significant factors that have an impact on our health, environment, production quality, etc. The purpose of this paper is to investigate sound and light absorption properties of 3D-printed polyethylene terephthalate glycol (PETG) material specimens that were manufactured with two types of holes, namely with circular and square-shaped holes. In addition, the holes were printed with different dimensions, depths, shapes, and surface spacings. Different factors influencing the material´s ability to absorb sound and light were evaluated in this paper. It was found in this study that the type of holes, their spacing and depth have a big influence on sound and light absorption properties of the investigated samples compared to the smooth PETG material.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3D TECHNOLOGIES FOR INTANGIBLE CULTURAL HERITAGE PRESERVATION: CREATING 3D MODELS OF LACQUER ART THROUGH PHOTOGRAMMETRY 非物质文化遗产保护的三维技术:通过摄影测量创建漆器艺术的三维模型
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023033
HOANG-SY NGUYEN, KHANH-DUY HO HOANG, CONG-DANH HUYNH, QUOC-PHU MA, JAKUB MESICEK
{"title":"3D TECHNOLOGIES FOR INTANGIBLE CULTURAL HERITAGE PRESERVATION: CREATING 3D MODELS OF LACQUER ART THROUGH PHOTOGRAMMETRY","authors":"HOANG-SY NGUYEN, KHANH-DUY HO HOANG, CONG-DANH HUYNH, QUOC-PHU MA, JAKUB MESICEK","doi":"10.17973/mmsj.2023_10_2023033","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023033","url":null,"abstract":"In recent years, close-range photogrammetric scanning systems have become increasingly popular due to their low-cost hardware, components, and user-friendly software. These systems utilize high-resolution cameras and advanced algorithms to produce accurate and precise 3D models, which are essential for analyzing, documenting, and preserving cultural heritage. While there are various methods for creating 3D models, minimizing cost and time is a primary concern. This paper focuses on photogrammetry as an option for surface reconstruction that might be used to make 3D representations of transparent objects. The objective of the research is to investigate the feasibility of creating appropriate 3D models for surface reconstruction and units of transparent objects through photogrammetry, utilizing open-source photogrammetry algorithms.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RESEARCH THE DIGITAL TRANSFORMATION MODEL OF MATERIALS MANAGEMENT IN VIETNAM GARMENT COMPANIES 研究越南服装企业物料管理数字化转型模式
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023058
LA THI NGOC ANH, NGUYEN THI HANH, HOANG THANH THUY, NGUYEN KIEU OANH
{"title":"RESEARCH THE DIGITAL TRANSFORMATION MODEL OF MATERIALS MANAGEMENT IN VIETNAM GARMENT COMPANIES","authors":"LA THI NGOC ANH, NGUYEN THI HANH, HOANG THANH THUY, NGUYEN KIEU OANH","doi":"10.17973/mmsj.2023_10_2023058","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023058","url":null,"abstract":"This article introduces a warehouse management model of raw materials in the factory thanks to MS Access that allows updating information about raw materials in stock, searching for materials, reporting - statistics, calculating inventory, locate storage and assign smart identifiers to materials. This solution completely transforms the content of the \"job ticket system\" in the warehouse management process into a visually electronic management system through the material inventory management software. The system allows access to information about materials such as production plans, suppliers, orders, order information, raw materials, shelf information, inspection criteria, etc. Through the software system, managers can easily oversee the materials and the quality of tasks executed within the warehouse. The application of the system in production in garment companies in Vietnam has increased labor productivity, production efficiency and product quality.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CHARACTERISTICS AND OVERVIEW OF KNOWLEDGE OF CURRENT RESEARCH IN THE PRODUCTION OF HARMONIC GEARBOX 介绍谐波齿轮箱生产的特点和知识概况
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023023
DANIELA KEPEN HARACHOVA
{"title":"CHARACTERISTICS AND OVERVIEW OF KNOWLEDGE OF CURRENT RESEARCH IN THE PRODUCTION OF HARMONIC GEARBOX","authors":"DANIELA KEPEN HARACHOVA","doi":"10.17973/mmsj.2023_10_2023023","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023023","url":null,"abstract":"The range of applications for drives and gears stretches over numerous technological fields. The gearbox is found in every mechanical machine and represents only one small but important sub-application. Industry as a whole has a constant demand for new individual solutions tailored to solve particular problems. But again and again, it is called upon to find new ways of transmitting movements that a particular component is required to conduct so as to attain a particular result. Harmonic drive products are unique precision speed reducers playing important roles in robots, semiconductor manufacturing systems, factory automation equipment and furthermore, in aerospace equipment. The greatest benefits are the zero-backlash characteristics and the weight and space savings compared to other gears because our gear mechanism consists of only three basic parts. They are the: Wave Generator, Flexspline and Circular Spline.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EVALUATING THE CHALLENGES OF ADDITIVE MANUFACTURING ADOPTION USING THE AVERAGE ANALYTIC HIERARCHY PROCESS (A(AHP)) METHOD: EMPIRICAL RESEARCH IN VIETNAM 使用平均层次分析法(a (ahp))方法评估增材制造采用的挑战:越南的实证研究
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023079
D. TRAN, Q. LE, L. NGUYEN, Q.-P. MA, J. HAJNYS, H. NGUYEN
{"title":"EVALUATING THE CHALLENGES OF ADDITIVE MANUFACTURING ADOPTION USING THE AVERAGE ANALYTIC HIERARCHY PROCESS (A(AHP)) METHOD: EMPIRICAL RESEARCH IN VIETNAM","authors":"D. TRAN, Q. LE, L. NGUYEN, Q.-P. MA, J. HAJNYS, H. NGUYEN","doi":"10.17973/mmsj.2023_10_2023079","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023079","url":null,"abstract":"Digital transformation, modern technologies to enable autonomous production capabilities, and smart logistical systems are prerequisite strategies to gain competitive advantages in developing countries. Additive manufacturing (AM) or three-dimensional printing offering more significant advantages, can manufacture complex geometries of products with various materials. AM plays a main role in reducing the number of parts, helping reduce and eliminate assembly time and cost. However, the application is still limited, especially in developing countries like Vietnam. This research paper aims to identify and assess the challenges associated with applying additive manufacturing in Southeast Vietnam. This study is conducted in three phases. Step one identifies challenges by reviewing previous studies. Step two applies semi-structured interviews with experts to consolidate these challenges to build a multi-level hierarchical structure of challenges. The third stage is to use a multi-hierarchical process method to rank these issues in order to organize the necessary resources for a successful response. The results show that there are five main challenges and 25 sub-challenges in implementing additive printing technology. Using the Average AHP method, financial and strategic challenges are ranked first and second significant, respectively. This paper contributes by identification of Additive Manufacturing implementation challenges based on the literature review and semi-structured interview with the experts. It provides an assessment of the challenges to help the practitioners robust the addictive manufacturing implementation in the manufacturing industry in Vietnam with limited resources.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CALIBRATION OF PRESSURE SENSORS 校正压力传感器
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023075
MARTIN VARGA, TATIANA KELEMENOVA, MICHAL KELEMEN, IVAN VIRGALA, LUBICA MIKOVA, ERIK PRADA, PETER MARCINKO, MAREK SUKOP, DOMINIK NOVOTNY
{"title":"CALIBRATION OF PRESSURE SENSORS","authors":"MARTIN VARGA, TATIANA KELEMENOVA, MICHAL KELEMEN, IVAN VIRGALA, LUBICA MIKOVA, ERIK PRADA, PETER MARCINKO, MAREK SUKOP, DOMINIK NOVOTNY","doi":"10.17973/mmsj.2023_10_2023075","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023075","url":null,"abstract":"The aim of the work is to calibrate the liquid pressure sensor, for which the manufacturer provides only basic data. However, there is a lack of data on other properties of the sensor needed before its use. The properties of the sensor must therefore be verified and identified. The article presents a methodology for quick identification of basic sensor parameters. These activities are also necessary during the input inspection of the sensors for their integration into the selected application.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SOLID-PHASE POLYCONDENSATION OF POLYETHYLENE TEREPHTHALATE WITH TECHNOLOGIES OF ITS REACTIVE EXTRUSION 聚对苯二甲酸乙二醇酯的固相缩聚及其反应挤出技术
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023024
MIROSLAV RIMAR, DENYS CHERVAKOV, MARCEL FEDAK, ANDRII KULIKOV, OLHA KULIKOVA, KONSTANTIN SUKHYY, OLEH CHERVAKOV, IGOR BENTSIONOV, OLGA SVERDLIKOVSKA, ELENA BELYANOVSKAYA, OLEKSANDR YEROMIN, OLENA PROKOPENKO
{"title":"SOLID-PHASE POLYCONDENSATION OF POLYETHYLENE TEREPHTHALATE WITH TECHNOLOGIES OF ITS REACTIVE EXTRUSION","authors":"MIROSLAV RIMAR, DENYS CHERVAKOV, MARCEL FEDAK, ANDRII KULIKOV, OLHA KULIKOVA, KONSTANTIN SUKHYY, OLEH CHERVAKOV, IGOR BENTSIONOV, OLGA SVERDLIKOVSKA, ELENA BELYANOVSKAYA, OLEKSANDR YEROMIN, OLENA PROKOPENKO","doi":"10.17973/mmsj.2023_10_2023024","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023024","url":null,"abstract":"It has been experimentally confirmed that polyethylene terephthalate during its processing into products destruct without carrying out the process of solid-phase polycondensation. The conditions for both primary and secondary polyethylene terephthalate have been determined for carrying out the process of solid-phase polycondensation for its effective reaction extrusion with chain extenders. To confirm the effectiveness of the parameters of the solid-phase polycondensation process of polyethylene terephthalate, its reaction extrusion was carried out with commercially available chain extenders of the diepoxide class. The optimal content of chain extenders of the diepoxide class for changing the complex of physical, mechanical and rheological properties of polyethylene terephthalate modified by them was determined. It allows obtaining materials with an increased by 2.2 times characteristic viscosity.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ACOUSTO HYDRODYNAMIC METHOD OF MEASURMENT OF FLUID CAVITATIONS THRESHOLD IN LIQUID 液体中流体空化阈值的声水动力测量方法
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023014
ANTON PANDA, NATALIA MANICHEVA, YURIJ DUDZINSKII, NATALIIA TITOVA
{"title":"ACOUSTO HYDRODYNAMIC METHOD OF MEASURMENT OF FLUID CAVITATIONS THRESHOLD IN LIQUID","authors":"ANTON PANDA, NATALIA MANICHEVA, YURIJ DUDZINSKII, NATALIIA TITOVA","doi":"10.17973/mmsj.2023_10_2023014","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023014","url":null,"abstract":"The two constructions for measurement of cavitations threshold in fluid are presented. The elastic underwater jet's membranes as the model of uniflow and counter flow sensor are considered. The basic frequency of membrane’s auto vibration depending on characteristics of fluid and geo¬metric parameters of construction is calculated. The nu¬merical calculations and experimental re¬sults are compared.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DIGITALIZING CONVENTIONAL MACHINES: A COMPLETE PRACTICAL IMPLEMENTATION SOLUTION 数字化传统机器:一个完整的实用实施方案
MM Science Journal Pub Date : 2023-10-04 DOI: 10.17973/mmsj.2023_10_2023056
VIET-THANG NGUYEN, THANH-HAI DIEP, THANH-SON NGUYEN, NGOC-DUC TRINH, NGOC-HUAN LE, NGOC-HAY NGUYEN
{"title":"DIGITALIZING CONVENTIONAL MACHINES: A COMPLETE PRACTICAL IMPLEMENTATION SOLUTION","authors":"VIET-THANG NGUYEN, THANH-HAI DIEP, THANH-SON NGUYEN, NGOC-DUC TRINH, NGOC-HUAN LE, NGOC-HAY NGUYEN","doi":"10.17973/mmsj.2023_10_2023056","DOIUrl":"https://doi.org/10.17973/mmsj.2023_10_2023056","url":null,"abstract":"Increasing productivity is all factories want to do. The purchase of new and modern machines requires a huge amount of cost and trained human resources. Meanwhile, traditional machines have the advantages of low investment costs, efficiency in roughing machining, and low labor costs. However, one of the disadvantages of traditional machines is that the machining surface is poor, and tool wear occurs more frequently. To overcome these disadvantages, a proposed solution is to digitize traditional machines. The authors have implemented a digitizing project on a milling machine by connecting a motor controller and sensors, reading and transmitting data to the center, and displaying it. The information obtained will help improve the machining process and limit the risk of failure.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135547431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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