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STUDY ON SURFACE INTEGRITY AND ITS INFLUENCE ON HIGH TEMPERATURE FATIGUE BEHAVIOR WHEN TURNING POWDER METALLURGY NI-BASED SUPERALLOY 粉末冶金镍基高温合金车削时表面完整性及其对高温疲劳行为影响的研究
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023102
Zheng MA, Jiaqiang DANG, Qi WANG, Weiwei MING, Qinglong AN, Ming CHEN
{"title":"STUDY ON SURFACE INTEGRITY AND ITS INFLUENCE ON HIGH TEMPERATURE FATIGUE BEHAVIOR WHEN TURNING POWDER METALLURGY NI-BASED SUPERALLOY","authors":"Zheng MA, Jiaqiang DANG, Qi WANG, Weiwei MING, Qinglong AN, Ming CHEN","doi":"10.17973/mmsj.2023_11_2023102","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023102","url":null,"abstract":"As a member of the latest generation of powder metallurgy Ni-based superalloy, FGH96 has already been widely applied in the manufacturing of aero-engines because of its distinguished mechanical performances. The surface integrity plays an essential role in the final fatigue life of the machined parts. However, surface modification induced by the machining process is inevitable, which profoundly affects the high temperature fatigue behavior of the manufactured part during the service lifetime. To cover the gap, the present work was carried out to specially study the surface integrity and its influence on high temperature fatigue behavior of powder metallurgy Ni-based superalloy when subjected to the mechanical turning process. The surface integrity, including surface morphology, micro-hardness, and depth-dependent residual stress, was initially characterized under different input parameters. High temperature fatigue tests were then conducted on the processed specimens to correlate the surface integrity and its fatigue behavior. Results showed that input parameters greatly influence the surface condition and thus the high temperature fatigue behavior. Poor integrity on machined surface leads to poor fatigue performance with typical fatigue fracture morphology, including crack initiation, propagation, and final fracture. While fine integrity on machined surface contributes to better fatigue performance. More interestingly, the fracture morphology in this situation shows similarity to the static tensile fracture, which presents shear failure along the direction of maximum shear stress.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"9 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227301","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
LOW-FREQUENCY CHATTER SUPPRESSION USING TUNED MASS DAMPER IN ROBOTIC MILLING 利用调谐质量阻尼器抑制机器人铣削中的低频颤振
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023098
Jiawei Wu, Xiaowei Tang, Shihao Xin, Chenyang Wang, Fangyu Peng, Rong Yan, Xinyong Mao
{"title":"LOW-FREQUENCY CHATTER SUPPRESSION USING TUNED MASS DAMPER IN ROBOTIC MILLING","authors":"Jiawei Wu, Xiaowei Tang, Shihao Xin, Chenyang Wang, Fangyu Peng, Rong Yan, Xinyong Mao","doi":"10.17973/mmsj.2023_11_2023098","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023098","url":null,"abstract":"Low-frequency chatter severely limits robotic milling efficiency. In this paper, tuned mass dampers (TMDs) are introduced to suppress low-frequency chatter based on robotic modal directionality. A TMD model with mounting angle is established, and the suppression effect of TMD on the robotic low-frequency dynamic compliance with different mounting directions is analyzed together with experiments. Then, low-frequency chatter is further suppressed by suppressing side-frequency dynamic compliance. The milling experiments show that the TMD can significantly suppress low-frequency chatter and improve cutting amount, and a better effect can be achieved when TMDs act at both the low-frequency mode and side frequencies.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"11 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227614","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
THE COMPARATIVE EFFECT OF WIRE ELECTRODES ON WIRE BREAKAGE FREQUENCY AND CUTTING RATE IN WEDM OF INCONEL 706 焊丝电极对因康乃尔706线切割断丝频率和切削速率的比较影响
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023116
Jwala Parshad, Vivek Aggarwal, Neelkanth Grover
{"title":"THE COMPARATIVE EFFECT OF WIRE ELECTRODES ON WIRE BREAKAGE FREQUENCY AND CUTTING RATE IN WEDM OF INCONEL 706","authors":"Jwala Parshad, Vivek Aggarwal, Neelkanth Grover","doi":"10.17973/mmsj.2023_11_2023116","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023116","url":null,"abstract":"Non-traditional machining methods like wire electric discharge machining (WEDM) appear to be an ideal choice for machining high strength super alloys like Inconel 706, because of their capability to generate intricate profiles with high accuracy. However, wire breakages are a common problem in the WEDM process and adversely affect the productivity, accuracy, and surface quality. Therefore, the aim of this work is to investigate and comprehend the phenomenon of wire breakage using Inconel 706 as work material and brass wire, diffused brass wire, and zinc-coated brass wire as electrode materials. Six process parameters—pulse-on time, pulse-off time, peak current, spark gap voltage, wire feed rate, and wire tension—have been varied experimentally to determine their effect on the frequency of wire failure. According to the findings, the zinc-coated brass wire breaks with the lowest frequency when compared to the other two. Additionally, an ideal range of input variables has been proposed for efficient WEDM of Inconel 706 without unexpected wire breakages. This range can also be utilized for further research work related to modeling and optimization in WEDM of Inconel 706.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"11 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227613","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
NUMERICAL STUDY OF EFFECT OF FLANK WEAR ON HEAT TRANSFER ABILITY IN HIGH-SPEED ULTRASONIC VIBRATION CUTTING INTERFACES 高速超声振动切削界面齿面磨损对传热能力影响的数值研究
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023107
Xiangyu Zhang, Dongyue Wang, Zhenlong Peng
{"title":"NUMERICAL STUDY OF EFFECT OF FLANK WEAR ON HEAT TRANSFER ABILITY IN HIGH-SPEED ULTRASONIC VIBRATION CUTTING INTERFACES","authors":"Xiangyu Zhang, Dongyue Wang, Zhenlong Peng","doi":"10.17973/mmsj.2023_11_2023107","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023107","url":null,"abstract":"High-speed ultrasonic vibration cutting shown great advantages by cutting temperature reduction due to periodic opened cutting interfaces for direct heat convection with coolants. To figure out accurate heat transfer ability, a 2-dimensional simplified model was developed and computational fluid dynamics (CFD) was used to calculate heat flux and Nusselt number. Three flank wear lengths for initial, initial-stable transition and stable stages were chosen and comparisons made between CFD results and wear progresses indicated that heat transfer ability demonstrated better performance during the stable wear stage at low cutting speed. As cutting speed increased the effect of ultrasonic vibration was weakened.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227288","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
MACHINE LEARNING BASED IDENTIFICATION AND PRIORITIZATION OF ELECTRICAL CONSUMERS FOR ENERGY MONITORING 基于机器学习的电力用户识别和优先级能源监测
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023123
A. Stobert, B. Loshchikhes, M. Weigold
{"title":"MACHINE LEARNING BASED IDENTIFICATION AND PRIORITIZATION OF ELECTRICAL CONSUMERS FOR ENERGY MONITORING","authors":"A. Stobert, B. Loshchikhes, M. Weigold","doi":"10.17973/mmsj.2023_11_2023123","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023123","url":null,"abstract":"This paper presents a machine learning based tool for the automated analysis of circuit diagrams, identifying electrical consumers through computer vision. Detected technical information is extracted and summarized in a report. In a web-based interactive dashboard the identified consumers are prioritized for further actions. Based on their nominal power an ABC-analysis classifies the consumers into three groups. Within an energy portfolio they are divided into four distinctive categories. In both approaches the consumers’ classification leads to specific strategies for energy consumption measurements in the subsequent detailed analysis.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"10 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227299","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
FROM THE TRADITIONAL MULTILATERATION TO THE INTEGRATED MULTILATERATION APPROACH: A ROADMAP TOWARDS THE AUTOMATIZATION OF VOLUMETRIC ERROR MAPPING PROCESS FOR LARGE MACHINE TOOLS 从传统的多角化到集成多角化:大型机床体积误差映射过程自动化的路线图
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023110
F. Egaña, U. Mutilba, G. Kortaberria, J. Eguskiza, B.A. Check
{"title":"FROM THE TRADITIONAL MULTILATERATION TO THE INTEGRATED MULTILATERATION APPROACH: A ROADMAP TOWARDS THE AUTOMATIZATION OF VOLUMETRIC ERROR MAPPING PROCESS FOR LARGE MACHINE TOOLS","authors":"F. Egaña, U. Mutilba, G. Kortaberria, J. Eguskiza, B.A. Check","doi":"10.17973/mmsj.2023_11_2023110","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023110","url":null,"abstract":"Multilateration-based volumetric error mapping is gaining widespread adoption in the coordinate measurement machine and machine tool industry as the most effective approach for geometric characterization of large-size machines. In the traditional method, tracking interferometers are placed on the machine table while the measurement retro-reflector moves with the spindle. However, this approach has several limitations, including manual instrument manipulation and a sequential measurement scheme that hinders unattended execution. To overcome these limitations, the integrated multilateration method has been introduced, which addresses these challenges and reduces measurement uncertainty. This method offers the potential for fully autonomous volumetric error mapping of large-size machines and enables the development of new functionalities such as traceable coordinate measurement with large machine tools. This research presents the roadmap followed by the authors to automate the volumetric error mapping process for large machine tools. It outlines the current status of the technology, starting from the conceptual development and culminating in the experimental results obtained from real industrial machine tools.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"9 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227302","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
METROLOGICAL QUANTIFICATION OF TOOL WEAR BEHAVIOR OVER TIME 随时间变化的刀具磨损性能的计量量化
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023111
K. Zangl, R. Danzl, F. Helmli, Y. Zhang
{"title":"METROLOGICAL QUANTIFICATION OF TOOL WEAR BEHAVIOR OVER TIME","authors":"K. Zangl, R. Danzl, F. Helmli, Y. Zhang","doi":"10.17973/mmsj.2023_11_2023111","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023111","url":null,"abstract":"Tool wear, caused by high machining temperatures, cutting speed or mechanical load, can have various characteristics. Current solutions for metrological quantification are limited with respect to their viewing dependency and user influence. Here, a measurement solution which is based on 3D focus variation measurements is presented. The quantification is carried out by the automatic evaluation of flank wear parameters (ISO 3685:1993, ISO 8688-1:1989) and plastic deformation impression and depression parameters on 3D dataset series. This allows the visualization and assessment of wear over a period of time and provides crucial information for the manufacturing and machining process.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"11 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227611","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
THE EFFECT OF BROACHING TOOL CUTTING EDGES POLISHING ON PROCESS FORCES AND TEMPERATURE 拉刀刃口抛光对加工力和温度的影响
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023101
C. Pérez-Salinas, LN. López de Lacalle, P. Fernández-Lucio, G. Gómez-Escudero, A. Del Olmo
{"title":"THE EFFECT OF BROACHING TOOL CUTTING EDGES POLISHING ON PROCESS FORCES AND TEMPERATURE","authors":"C. Pérez-Salinas, LN. López de Lacalle, P. Fernández-Lucio, G. Gómez-Escudero, A. Del Olmo","doi":"10.17973/mmsj.2023_11_2023101","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023101","url":null,"abstract":"In the industrial field, the search for improving the performance of machining tools considering their geometry, manufacturing, material, and coatings is a priority. This research focuses on optimizing the cutting edge for broaching Inconel 718. Drag-finishing was used to round and polish the cutting edge of a K10-Co 7% grade tungsten carbide roughing tool. The results reveal that increasing the cutting-edge radius affects the process forces increasingly, especially the thrust force. From the minimum tested radius of 5 micrometers to the maximum radius of 35 micrometers, the cutting and thrust force doubles at uncut thicknesses (RPT) of 75 and 100 micrometers. The plowing force is hardly affected. The shear coefficient Kcc also shows growth as the radius of the cutting-edge increases. The temperature increases proportionally with the radius, and in addition, the simulations show a change of the temperature distribution in the cutting profile with the change of the cutting-edge radius. Thus, the preparation of the cutting-edge could be crucial in the performance of the broaching process.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"11 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227616","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
ROBOT ASSISTED STABILIZATION FOR FLEXIBLE WORKPIECES SUBJECTED TO HIGHLY INTERRUPTED CUTTING 机器人辅助稳定柔性工件受到高度中断的切割
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023114
R. R. Toth, G. Stepan
{"title":"ROBOT ASSISTED STABILIZATION FOR FLEXIBLE WORKPIECES SUBJECTED TO HIGHLY INTERRUPTED CUTTING","authors":"R. R. Toth, G. Stepan","doi":"10.17973/mmsj.2023_11_2023114","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023114","url":null,"abstract":"In many facets of industry, slender workpieces are formed by means of milling processes. These workpieces are especially prone to experience harmful chatter vibrations, which limits quality and productivity. In this paper, a novel solution is proposed where a robotic arm is used to support the workpiece, improving its modal properties and reducing the occurrence of chatter. The paper presents some numerical, analytical and limited experimental results for improving the material removal rate using the robot assisted milling method for low radial immersion processes, such as finishing operations.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"10 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227294","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
IMPLEMENTING OF PHOTOREALISTIC SURFACE RENDERING IN CAM SIMULATION CAM仿真中逼真表面渲染的实现
MM Science Journal Pub Date : 2023-11-15 DOI: 10.17973/mmsj.2023_11_2023112
T. Beer, M. Stautner, X. Beudaert, M. Gil, Z. Dombovari, D. Plakhotnik
{"title":"IMPLEMENTING OF PHOTOREALISTIC SURFACE RENDERING IN CAM SIMULATION","authors":"T. Beer, M. Stautner, X. Beudaert, M. Gil, Z. Dombovari, D. Plakhotnik","doi":"10.17973/mmsj.2023_11_2023112","DOIUrl":"https://doi.org/10.17973/mmsj.2023_11_2023112","url":null,"abstract":"In this paper, different approaches to visualize CAM simulation results are presented. Simulated machined surfaces can be rendered in a photorealistic manner taking into account real tool motions and vibrations measured during the machining process. The actual tool trajectories are used to derive the microrelief of machined surface that lead to different reflective properties to be used in the CAM surface rendering pipeline. Broaching and grinding were two machining processes to adopt this photorealistic visualization. First, the generic CAM simulation computed the triangulated representation of the in-process workpiece. Second, the triangles were enriched with the computed micro topography information that is used by the developed shader implementation during the visualization process.","PeriodicalId":18723,"journal":{"name":"MM Science Journal","volume":"11 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227609","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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