Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology最新文献_第9页

Fabrication of angle-gradient echelle grating on metallic glass using shaped vibration cutting with time-varying trajectory 利用具有时变轨迹的异形振动切割在金属玻璃上制作角梯度梯度光栅

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-11-12 DOI: 10.1016/j.precisioneng.2024.11.002

Wei Dai , Pingfa Feng , Zhimeng Chen , Feng Feng , Mengying Luan , Jianjian Wang

{"title":"Fabrication of angle-gradient echelle grating on metallic glass using shaped vibration cutting with time-varying trajectory","authors":"Wei Dai , Pingfa Feng , Zhimeng Chen , Feng Feng , Mengying Luan , Jianjian Wang","doi":"10.1016/j.precisioneng.2024.11.002","DOIUrl":"10.1016/j.precisioneng.2024.11.002","url":null,"abstract":"<div><div>In order to solve the problem of narrow band coverage of traditional infrared gratings, a new type of diffraction grating is invented and named as angle-gradient echelle grating. The blaze angle of the grating gradually changes along the direction of the grating grooves, which can be regarded as etching countless sub-gratings with different blaze angles on a grating, breaking the limitation of the number of blaze angles of traditional gratings. In addition, in order to solve the processing problem of angle-gradient echelle grating, a new processing method, shaped vibration cutting (SVC) with a time-varying trajectory is developed. By exploring the influence of different processing parameters on the grating processing results, a suitable processing plan was proposed. Eventually, angle-gradient echelle grating with blaze angles varying from 30° to 55° and surface roughness of as low as 20 nm was fabricated on metallic glass, a material that is difficult to machine.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 678-691"},"PeriodicalIF":3.5,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Kinematics modeling and trajectory optimization for precision grinding of variable-parameter helical grooves 可变参数螺旋槽精密磨削的运动学建模和轨迹优化

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-11-10 DOI: 10.1016/j.precisioneng.2024.10.015

Yong Li , Guofu Ding , Zhihui Yang , Changjiu Xia , Zhe Liu , Lei Jiang

{"title":"Kinematics modeling and trajectory optimization for precision grinding of variable-parameter helical grooves","authors":"Yong Li , Guofu Ding , Zhihui Yang , Changjiu Xia , Zhe Liu , Lei Jiang","doi":"10.1016/j.precisioneng.2024.10.015","DOIUrl":"10.1016/j.precisioneng.2024.10.015","url":null,"abstract":"<div><div>End mills with variable helix angles in a certain range can suppress the cutting vibration, and the change of the core radius can improve the cutting rigidity and realize the best match between the rigidity and the chip removal performance. However, the existing process cannot accurately realize the continuous variable helix angle along the cutting edge. Moreover, the change in helix angle and core radius increases the difficulty of calculating the grinding trajectory and makes it difficult to control the rake angle accurately, and that results in the performance of this end mill cannot be accurately guaranteed. Therefore, this paper proposed a kinematics modeling and trajectory optimization method for the precision grinding of variable-parameter helical grooves. Firstly, a general grinding kinematics model is established by geometric analysis. Secondly, with the rake angle, helix angle, and core radius as constraints, models are constructed to solve the location and direction parameters of the grinding wheel. Then, the calculation and optimization method of the grinding trajectory for variable-parameter helical grooves is developed. Finally, the experimental verification is carried out and the results show that the maximum rake angle error is 0.09°, the maximum helix angle error is 0.08°, and the maximum core radius error is 0.053 mm. It indicates the grinding kinematics model and the trajectory optimization are correct. This process can also be used to grind complex helical grooves on custom cutting tools such as drills and screw taps.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 644-659"},"PeriodicalIF":3.5,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Review of ultrasonic vibration-assisted milling technology 超声波振动辅助铣削技术回顾

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-11-09 DOI: 10.1016/j.precisioneng.2024.10.021

Ang Li , Xuewei Zhang , Jianbo Chen , Ting Shi , Lu Wen , Tianbiao Yu

{"title":"Review of ultrasonic vibration-assisted milling technology","authors":"Ang Li , Xuewei Zhang , Jianbo Chen , Ting Shi , Lu Wen , Tianbiao Yu","doi":"10.1016/j.precisioneng.2024.10.021","DOIUrl":"10.1016/j.precisioneng.2024.10.021","url":null,"abstract":"<div><div>Compared with the conventional milling technology, the ultrasonic vibration-assisted milling technology has better machining performance for hard-to-machine materials. With the progress of ultrasonic generators and ultrasonic transducers, the research of the ultrasonic-assisted milling technology has been developed rapidly. Correspondingly, new design requirements and theoretical concepts are proposed to meet the high-performance requirements of manufacturing complex structures with hard-to-machine materials. There are few comprehensive reviews about the ultrasonic vibration-assisted milling technology. Therefore, we present the first comprehensive review of the advantages, the basic principles, the historical research progress, the cutting tools, the workpiece material properties and the cutting characteristics of the ultrasonic vibration-assisted milling technology to lay a foundation for the related research. In addition, the shortcomings of the existing theories and the outlook for future research directions are also discussed.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 601-616"},"PeriodicalIF":3.5,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An integrated hot embossing and thermal reflow method for precision manufacture of plano-convex glass microlens arrays 用于精密制造平凸玻璃微透镜阵列的集成热压印和热回流方法

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-11-04 DOI: 10.1016/j.precisioneng.2024.11.001

Gao Yang , Kang Yang , Jianzhi Li , Chi Fai Cheung , Feng Gong

{"title":"An integrated hot embossing and thermal reflow method for precision manufacture of plano-convex glass microlens arrays","authors":"Gao Yang , Kang Yang , Jianzhi Li , Chi Fai Cheung , Feng Gong","doi":"10.1016/j.precisioneng.2024.11.001","DOIUrl":"10.1016/j.precisioneng.2024.11.001","url":null,"abstract":"<div><div>Plano-convex glass microlens arrays (MLAs) have broad applications in imaging, sensing, illumination, and communication systems. This paper proposed a three-step method to precision manufacture of plano-convex glass MLAs, which involves fabrication of SiC microhole arrays (MHAs), hot embossing of glass micropillar arrays (MPAs) and thermal reflow of glass MLAs. The effects of embossing temperature, force, and time on the replication accuracy of glass MPAs are evaluated. Subsequently, the glass MPAs with decent replication accuracy were subjected to thermal reflow experiments for studying the effects of reflowing temperature and reflowing time on the geometric features of formed glass MLAs. It is found that the height and tip curvature of reflowed glass microlenses can be controlled by adjusting the reflowing temperature and time. The warpage amplitudes and mean birefringence of most reflowed glass substrates are less than 5 μm and 27 nm/cm, respectively. Furthermore, the reflowed glass microlens arrays shows a decent uniformity in an area with a diameter of ∼4 mm. Finally, the feasibility of the integrated hot embossing and thermal reflow method in producing glass nano-lens arrays is also demonstrated. As a result, the hybrid forming technology that combines hot embossing with thermal reflow not only avoids the difficulties of fabrication of MLA and NLA mold inserts, but also possesses the advantages of high efficiency and low cost, which is expected to be a promising mass production technology for glass micro/nano-lens arrays.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 587-600"},"PeriodicalIF":3.5,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Design and testing of a two-axis surface encoder with a single Littrow configuration of a first-order diffraction beam 使用一阶衍射光束的单利特罗配置设计和测试双轴表面编码器

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-10-31 DOI: 10.1016/j.precisioneng.2024.10.019

Yifan Hong, Ryo Sato, Hiraku Matsukuma, Wei Gao

{"title":"Design and testing of a two-axis surface encoder with a single Littrow configuration of a first-order diffraction beam","authors":"Yifan Hong, Ryo Sato, Hiraku Matsukuma, Wei Gao","doi":"10.1016/j.precisioneng.2024.10.019","DOIUrl":"10.1016/j.precisioneng.2024.10.019","url":null,"abstract":"<div><div>A simple but effective optical design is proposed to expand the measurement range of a surface encoder in the out-of-plane <em>Z</em>-direction, which had been much shorter than that in the in-plane <em>X</em>-direction. A zeroth-order and a first-order diffraction beams generated at a transparent grating are projected onto a parallelly aligned scale grating. The reflected zeroth-order beam from the scale grating interferes with a beam from a reference plane mirror for the <em>Z</em>-directional measurement over an expanded range of 13 mm. A single Littrow configuration is established for the first-order diffraction beam to travel to and from the scale grating on the same path so that it can interfere with the reflected zeroth-order beam for the <em>X</em>-directional measurement regardless of the <em>Z</em>-position of the scale grating. A prototype sensor is constructed for demonstrating the effectiveness of the proposed optical design for expansion of <em>Z</em>-range. Uncertainty analysis on the measurement results is also conducted.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 577-586"},"PeriodicalIF":3.5,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An in-depth analysis of MWCNTs and graphene nanofluids-based EDM: Investigating surface integrity in Inconel 825 superalloy 深入分析基于 MWCNT 和石墨烯纳米流体的放电加工：调查 Inconel 825 超合金的表面完整性

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-10-30 DOI: 10.1016/j.precisioneng.2024.10.018

Pankaj Sharma , Vishal Singh , Manoj Kumar Sinha

{"title":"An in-depth analysis of MWCNTs and graphene nanofluids-based EDM: Investigating surface integrity in Inconel 825 superalloy","authors":"Pankaj Sharma , Vishal Singh , Manoj Kumar Sinha","doi":"10.1016/j.precisioneng.2024.10.018","DOIUrl":"10.1016/j.precisioneng.2024.10.018","url":null,"abstract":"<div><div>The current study systematically explores the potential of nanofluids (NFs) as dielectric media in EDM to enhance the surface integrity of Inconel 825. To achieve this objective, applying nanofluids involves ensuring uniform dispersion of nanoparticles, specifically emphasising efficient heat dissipation, thereby aligning EDM processes. This investigation focuses on utilising MWCNTs NFs, graphene NFs, and hybrid NFs (maintaining a 1:1 ratio of nanoparticles) with a hydrocarbon-based EDM oil as the base fluid. This study marks a pioneering attempt to implement these NFs in the EDM process for Inconel 825. Comprehensive characterizations of NFs have been conducted before their application in the EDM process. These have included assessments of hydrodynamic diameter, zeta potential, dynamic viscosity, thermal conductivity, and breakdown voltage. A comparative analysis has been performed between the outcomes of NFs-based EDM and conventional EDM (using EDM oil). The results show that using graphene NFs, followed by MWCNTs NFs and hybrid NFs, improves thermal conductivity and stability during the EDM process. This results in an enhanced material removal rate and better surface roughness. In-depth examinations of surface irregularities, surface microcracks, recast layer thickness, and grain orientation are carried out using scanning electron microscopy and electron backscattered diffraction. Moreover, residual stress and microhardness are systematically determined to gain further insights into surface integrity. The results indicate that the comparatively higher dispersion of graphene within base dielectric fluid provided better surface integrity for ED-machined parts.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 546-558"},"PeriodicalIF":3.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Simultaneous cutting and grinding of micropins using cylindrical microtools 使用圆柱形微型工具同时切割和磨削微针

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-10-30 DOI: 10.1016/j.precisioneng.2024.10.020

Kai Egashira, Hinata Okano, Atsuya Fukuyama

{"title":"Simultaneous cutting and grinding of micropins using cylindrical microtools","authors":"Kai Egashira, Hinata Okano, Atsuya Fukuyama","doi":"10.1016/j.precisioneng.2024.10.020","DOIUrl":"10.1016/j.precisioneng.2024.10.020","url":null,"abstract":"<div><div>Decreasing cutting force is always crucial in cutting processes. One method to achieve this is by minimizing tool wear, for which rotary cutting is a highly effective technique. The use of a cylindrical tool offers the additional benefit of easy tool fabrication, which is especially advantageous for a microtool capable of machining micropins. However, there have been no reported studies on rotary cutting using a cylindrical microtool. It should be noted that if a microtool is fabricated by electrical discharge machining, it is expected to engage in cylindrical grinding as well. This suggests that both rotary cutting and cylindrical grinding can be carried out simultaneously; however, there have also been no reported studies on simultaneous cutting and grinding. Therefore, the present study investigated whether this machining method can perform micropin machining, if it actually involves both cutting and grinding actions, and whether the combination of these actions enhances material removal capability. In turning and grinding experiments, where only one of the tool and workpiece was rotated, both actions were observed. Furthermore, it was confirmed that micropin machining can be performed by rotating both the tool and workpiece, resulting in a decrease in machining force to approximately one-quarter to one-half compared to that of turning. This indicates that simultaneous cutting and grinding was carried out, and the overlap of their actions enhanced material removal capability. In addition, the relationship between the machining conditions and machining force was investigated. At a small depth of cut, a tool with smaller surface roughness exhibited lower machining force than a tool with larger roughness, and the opposite was true at a large depth of cut. Finally, an ultrasmall-diameter micropin with a diameter less than 3 μm was successfully machined using conditions capable of reducing machining force.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 559-567"},"PeriodicalIF":3.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A 3-DOF spreading precision positional stage for ductile end-face fly-cutting of quartz glass 用于石英玻璃韧性端面飞切的 3-DOF 平展精密定位平台

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-10-30 DOI: 10.1016/j.precisioneng.2024.10.014

Bingrui Lv , Bin Lin , Tianyi Sui , Jinshuo Zhang , Longfei Wang , Jingguo Zhou , Pengcheng Zhao , Jinming Li

{"title":"A 3-DOF spreading precision positional stage for ductile end-face fly-cutting of quartz glass","authors":"Bingrui Lv , Bin Lin , Tianyi Sui , Jinshuo Zhang , Longfei Wang , Jingguo Zhou , Pengcheng Zhao , Jinming Li","doi":"10.1016/j.precisioneng.2024.10.014","DOIUrl":"10.1016/j.precisioneng.2024.10.014","url":null,"abstract":"<div><div>Ductile removal is widely employed to eliminate subsurface damage in brittle materials. Achieving this requires the cutting depth to be set extremely low, presenting significant challenges for error compensation and precise feeding of the machine tool. In this paper, a novel three-degree-of-freedom spreading precision positioning stage is developed to mitigate the effects of workpiece deflection errors and feed resolution on the depth of cut during the end-face fly-cutting process. First, a bridge and half-bridge composite structure is designed to facilitate the planar spreading of the spatial motion mechanism. A mathematical model of the composite structure is developed based on elastic beam theory. Second, the effects of various structural parameters on the amplification ratio of the structure are investigated. The accuracy of the theoretical model is verified by finite element analysis. Finally, ductile fly-cutting experiments on quartz glass are conducted using a precision 5-axis machine tool.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 660-677"},"PeriodicalIF":3.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Error compensation strategy with high installation tolerance for angle encoders 角度编码器安装容差大的误差补偿策略

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-10-30 DOI: 10.1016/j.precisioneng.2024.10.017

Guobo Zhao , Yaowen Ban , Zhenghui Zhang , Xunhan Wang , Bangdao Chen , Yongshing Shi , Weitao Jiang , Hongzhong Liu

{"title":"Error compensation strategy with high installation tolerance for angle encoders","authors":"Guobo Zhao , Yaowen Ban , Zhenghui Zhang , Xunhan Wang , Bangdao Chen , Yongshing Shi , Weitao Jiang , Hongzhong Liu","doi":"10.1016/j.precisioneng.2024.10.017","DOIUrl":"10.1016/j.precisioneng.2024.10.017","url":null,"abstract":"<div><div>Radial error (comprising eccentricity error and runout error) and graduation error of circular scales are the primary sources of error for angle encoders. This paper presents a compensation strategy for radial error and graduation error with a high installation tolerance, achieved through the utilization of three measurement heads and one calibration head. Three reading heads, evenly distributed, are employed to compensate for radial error and non-3k order graduation error, while one reading head, positioned in a specific arrangement, serves to identify 3k order errors for compensation purposes. To mitigate the installation tolerance requirements of reading heads, this study employs two methods. Firstly, it investigates the impact of reading head position deviation on compensating radial error and proposes a method for compensating residual radial error. Secondly, it utilizes the Monte Carlo method to assess the effect of reading head position deviation on identifying graduation error when the maximum deviation is ±1°. The simulation and experimental results confirm that the proposed method effectively compensates for radial error and the first 10-order graduation error within a position deviation range of ±1°. Based on the experimental results, this method demonstrates superior compensation accuracy, achieving an error of 0.44″, compared to evenly distributing three reading heads (0.53″) and four reading heads (0.85″). Additionally, when compared to the combination method of evenly distributing three and four reading heads (0.47″), it provides similar compensation accuracy while utilizing fewer reading heads.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 568-576"},"PeriodicalIF":3.5,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Investigation of the effects of heat treatment and hot isostatic pressing in micro-drilling of Ti6Al4V alloy fabricated by laser powder bed fusion 研究热处理和热等静压对激光粉末床熔融制造的 Ti6Al4V 合金微钻孔的影响

IF 3.5 2区工程技术

Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology Pub Date : 2024-10-29 DOI: 10.1016/j.precisioneng.2024.10.016

Ahmet Balcı , Adem Çiçek , Necati Uçak , Kubilay Aslantas

{"title":"Investigation of the effects of heat treatment and hot isostatic pressing in micro-drilling of Ti6Al4V alloy fabricated by laser powder bed fusion","authors":"Ahmet Balcı , Adem Çiçek , Necati Uçak , Kubilay Aslantas","doi":"10.1016/j.precisioneng.2024.10.016","DOIUrl":"10.1016/j.precisioneng.2024.10.016","url":null,"abstract":"<div><div>In this study, micro-drilling performance of laser powder bed fusion (LPBF) Ti6Al4V alloy with heat treatment (HT) and hot isostatic pressing (HIP) post-processing conditions was investigated and compared to wrought material. The tests were performed at two spindle rotational speeds (5000 and 10,000 rev/min) and a feed per tooth (4 μm/tooth) under dry and minimum quantity lubrication (MQL) conditions using conventional drilling (CD) and peck drilling (PD) strategies. Micro-drilling performance was evaluated in terms of thrust force, surface roughness, subsurface microstructure and microhardness, burr formation, and tool wear. The test results showed that LPBF-HT and LPBF-HIP Ti6Al4V alloys exhibited different micro-drilling performances than the wrought material due to their different microstructural and mechanical properties. The LPBF-HIP Ti6Al4V characterized by higher strength and lamellar microstructure with higher <em>β</em> phase fraction (33.2 %) led to higher thrust force, lower surface quality and higher burr height. On the other hand, the wrought Ti6Al4V with higher ductility, lower hardness, and lower <em>β</em> phase fraction (16.3 %) showed lower thrust forces, surface roughness, and burr height. Notably, employing MQL conditions with the PD strategy provided good surface quality and reduced burr formation. A higher degree of tool wear was obtained in micro-drilling of LPBF-HIP Ti6Al4V. The major wear types were adhesion, BUE, and flank wear. Besides, chippings were observed in micro-drilling of LPBF-HT and LPBF-HIP Ti6Al4V.</div></div>","PeriodicalId":54589,"journal":{"name":"Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology","volume":"91 ","pages":"Pages 617-631"},"PeriodicalIF":3.5,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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