International Journal of Precision Engineering and Manufacturing最新文献_第7页

Speed Planning and Interpolation Algorithm of Archimedes Spiral Based on Tangential Vector 基于切向矢量的阿基米德螺旋速度规划和插值算法

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-19 DOI: 10.1007/s12541-024-01058-9

Qingjian Liu, Gangpeng Huang, Xu Zhang, Zhigang Liu, Zheng Li, Shuo Liu, Tianze Hao

{"title":"Speed Planning and Interpolation Algorithm of Archimedes Spiral Based on Tangential Vector","authors":"Qingjian Liu, Gangpeng Huang, Xu Zhang, Zhigang Liu, Zheng Li, Shuo Liu, Tianze Hao","doi":"10.1007/s12541-024-01058-9","DOIUrl":"https://doi.org/10.1007/s12541-024-01058-9","url":null,"abstract":"The primary challenge in CNC machining is optimizing arc interpolation for better smoothness and precision, as traditional methods often fail to maintain a consistent curvature, resulting in inefficiencies and inaccuracies. This study utilizes the Archimedes spiral, comprising a series of seamlessly connected circular arcs, as an innovative interpolation curve to improve arc interpolation efficiency and accuracy. The proposed methodology addressed the issue of constant arc interpolation curvature and facilitated the implementation of the spiral’s interpolation algorithm. It employs the parametric equation of the Archimedes spiral to define tangent vectors, which is pivotal for the execution of the algorithm. In the context of speed planning, the curve was segmented into different sections, allowing the calculation of maximum acceleration based on the interval segmentation angle of the tangent vector. This segmentation facilitates the analysis of speed variations, which are consequently integrated to determine the speed distribution across different curve sections. Through this integration, the motion process is categorized, thereby achieving a refined speed distribution curve. This study introduces a realtime interpolation algorithm capable of calculating the largest axis of the tangent vector, thereby enabling precise pulse coordinates. This coordinate information are then effortlessly derived from the simple geometric relationships inherent in the spiral's structure. The effectiveness of the proposed method is demonstrated through simulation and practical machining on two distinct graphical representations. Compared with the traditional linear interpolation algorithm, the proposed method improves the machining efficiency of heart-shaped curves by 6.85% while ensuring the machining accuracy. Comprehensive evaluation, encompassing track error, and surface roughness assessments, validates the enhanced performance of this interpolation technique.","PeriodicalId":14359,"journal":{"name":"International Journal of Precision Engineering and Manufacturing","volume":"205 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Welding Strategy for Medium and Thick-Wall Pipes Based on Three-Line Laser 基于三线激光的中厚壁管道焊接策略

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-19 DOI: 10.1007/s12541-024-01064-x

Tianqi Wang, Kaiquan Meng, Junjie He, Lei Wang

{"title":"Welding Strategy for Medium and Thick-Wall Pipes Based on Three-Line Laser","authors":"Tianqi Wang, Kaiquan Meng, Junjie He, Lei Wang","doi":"10.1007/s12541-024-01064-x","DOIUrl":"https://doi.org/10.1007/s12541-024-01064-x","url":null,"abstract":"To realize the intelligence and flexibility of the welding process of medium and thick-walled pipelines, this paper proposes a pipeline welding strategy based on three-line laser vision. The feature points of the weld are obtained by using the fixed points, and the overall contour of the pipe weld is initially fitted to determine the fuzzy position of the weld. After that, path refinement is performed according to the feature point information to complete the welding path planning. Combined with the GA-BP neural network and contour layering strategy to complete the selection of welding technology parameters, establish the relationship model between weld contour information and welding technology parameters to complete the welding task. The experimental results show that the method proposed in this paper can automate the extraction of weld paths and further realize the intelligent and automatic control of the welding process through the prediction of welding technology parameters. The method helps to improve the welding quality and efficiency and reduce the labor cost and production cycle.","PeriodicalId":14359,"journal":{"name":"International Journal of Precision Engineering and Manufacturing","volume":"46 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analyzing Annealing Effects on Residual Stresses in Injection Molded Microstructures 分析退火对注塑成型微结构残余应力的影响

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-17 DOI: 10.1007/s12541-024-01051-2

Wanlin Wang, Huabin Yang, Yilei Wang, Can Weng

{"title":"Analyzing Annealing Effects on Residual Stresses in Injection Molded Microstructures","authors":"Wanlin Wang, Huabin Yang, Yilei Wang, Can Weng","doi":"10.1007/s12541-024-01051-2","DOIUrl":"https://doi.org/10.1007/s12541-024-01051-2","url":null,"abstract":"Annealing, a critical heat treatment process, is known for its effectiveness in reducing residual stresses in parts affected by temperature and pressure fluctuations during injection molding. This study explores the influence of annealing on residual stress distribution inmicrostructured parts made of three materials—polycarbonate (PC), polymethyl methacrylate (PMMA), and polystyrene (PS)—and featuring two depth-to-width ratios of microprismatic structures. This investigation combines molecular dynamics simulation with annealing experiments. Findings demonstrate that annealing significantly reduces residual stresses across all three materials, albeit with varying degrees of effectiveness. This variation in annealing efficacy is linked to the materials’ properties, particularly the presence of a carbonate base in PC, which notably enhances its annealing response. In detail, for PC parts with a 1:1 depth-to-width ratio in micropillar structures, there was a 15.45% reduction in peak residual stress, while parts with a 2:1 ratio experienced a more substantial reduction of 41.56%. The study attributes these differences in annealing outcomes to the depth-to-width ratios of the microstructures, with larger cavity sizes allowing for more effective molecular chain stretching.","PeriodicalId":14359,"journal":{"name":"International Journal of Precision Engineering and Manufacturing","volume":"34 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141509241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the Laser Forming Process of 6061 Aluminium Alloy Sheets with Angular Segment Irradiating Scheme: A Numerical and Statistical Investigation 采用角段辐照方案的 6061 铝合金板材激光成型工艺：数值与统计研究

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-15 DOI: 10.1007/s12541-024-01062-z

U. Nath, V. Yadav

引用次数: 0

Pressure Ulcer Breakout Time Estimation Model for the Wearable Robot Use 用于可穿戴机器人的褥疮破溃时间估算模型

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-15 DOI: 10.1007/s12541-024-01061-0

Chang-Hwan Lee, K. Gwak

引用次数: 0

Mechanical Survey on Wheeled Mobile Robot Platform for Industrial and Personal Service Robots 用于工业和个人服务机器人的轮式移动机器人平台机械调查

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-15 DOI: 10.1007/s12541-024-01014-7

Woojae Lee, J. Won, Garam Park, Taewon Seo

引用次数: 0

Development of a Real-Time Anomaly Detection System for Dry Vacuum Pumps Using Low-Cost IoT Devices and Machine Learning 利用低成本物联网设备和机器学习为干式真空泵开发实时异常检测系统

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-14 DOI: 10.1007/s12541-024-01039-y

Byung-Sub Kim, Seung-Kook Ro

引用次数: 0

DNN-Based Force Estimation in Hyper-Redundant Manipulators 超冗余机械手中基于 DNN 的力估算

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-13 DOI: 10.1007/s12541-024-01030-7

Sunwoong Choi, Yong-Ky Moon, Jeongryul Kim, Keri Kim

引用次数: 0

A Novel Grinding Process on Compacted Graphite Iron Using Cutting Fluid with Nano-solid Lubricant Additives 使用含纳米固体润滑添加剂的切削液对压实石墨铁进行研磨的新工艺

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-13 DOI: 10.1007/s12541-024-01063-y

Trung Kien Nguyen, Hung Trong Phi, Ngoc-Tam Bui, S. H. Truong

引用次数: 0

A Novel Precision Grinding Method for Roller Enveloping Hourglass Worm 一种新颖的辊式包络沙漏蜗杆精密磨削方法

IF 1.9 4区工程技术

International Journal of Precision Engineering and Manufacturing Pub Date : 2024-06-13 DOI: 10.1007/s12541-024-01053-0

Yan Chen, Wentao Wang, Huili Ma, Yun Pu, Yonghong Chen

引用次数: 0