检索结果-内蒙古大学图书馆

20th CIRP Conference on Modeling of Machining Operations in Mons, CIRP CMMO 2025

作者： Schumski, L. Ducobu, F. Langenhorst, L. Sölter, J. Karpuschewski, B. Leibniz Institute for Materials Engineering IWT Badgasteiner Straße 3 Bremen28359 Germany University of Bremen MAPEX Center for Materials and Processes Bibliothekstraße 1 Bremen28359 Germany Machine Design and Production Engineering Lab 20 Place du Parc MonsB-7000 Belgium

Vibration-assisted drilling is particularly efficient for long-chipping and difficult-to-machine materials due to its special kinematics with interrupted cutting. In order to optimize the process, a deeper understanding of the occurring external and internal material loads is required. For this purpose, a model is developed and simulation results are compared with experimental data on the materials Ti6Al4V and AISI 4140. Based on a kinematic simulation, individual segments on the main cutting edge are considered and the local chip formation is modelled as an orthogonal cut using the CEL method. Special consideration is given to the process kinematics, where, in addition to the entry and exit of the tool cutting edge, a varying uncut chip thickness occurs. Drilling without vibration assistance is also modelled in this way. The resulting drilling torques and thrust forces are compared with experimental data. The experiments are carried out on tubes with different internal diameters to represent the different segments of the main cutting edge. In addition, experimental results on drilling a rod and into solid material quantify the effects of the chisel edge and the minor cutting edges. The results show that both drilling and vibration-assisted drilling can be modelled using orthogonal cutting models with acceptable computation times. © 2025 The Author(s).

关键词： Ternary alloys

来源：评论

学校读者我要写书评

暂无评论

Effect of Cutting Conditions on Surface Integrity when Robotic Drilling of Aluminum 6082-GFRP Stacks 7

Effect of Cutting Conditions on Surface Integrity when Robot...

引用

7th CIRP Conference on Surface Integrity, CSI 2024

作者： Beuscart, Thomas Arrazola, Pedro-José Tinel, Noémie Ducobu, François Machine Design and Production Engineering Lab Research Institute for Science and Material Engineering UMONS Belgium Escuela Politécnica Superior de Mondragon Unibersitatea Loramendi 4 Mondragon20500 Spain Ecole Nationale Supérieure de Mécanique et d'Aérotechnique E.N.S.M.A 1 Avenue Clément Ader Futuroscope 86960 Cedex France

Six-axis robots are increasingly employed in manufacturing due to their excellent volume on cost ratio and extensive reach, facilitating the machining of large components, including those made of composites. However, this enhanced volume on cost ratio often compromises rigidity. This study investigates the effect of cutting conditions on surface integrity and robotic drilling forces when machining Aluminum 6082-GFRP stacks using 6 mm solid carbide drills and a 6-axis Stäubli TX200 robot. Two distinct drill geometries are assessed in various drilling sequences. Feed rate emerges as a pivotal parameter affecting drilling forces and hole quality. Comprehensive testing encompasses a range of feed rates and drilling strategies in both individual materials and stack sequences. The analysis includes cutting forces and hole quality, considering surface integrity and standard quality indicators such as delamination, arithmetic roughness, and burr height. The research seeks to propose optimal cutting conditions, specifically feed rate and cutting speed, essential for advanced industrial applications. These conditions ensure hole quality and surface integrity, which is particularly important for riveting processes and ensuring effective sealing. © 2024 The Authors. Published by Elsevier B.V.

关键词： Robots

来源：评论

学校读者我要写书评

暂无评论

Simulation of chip formation for varying uncut chip thickness during vibration-assisted drilling with the CEL method

引用

Procedia CIRP 2025年 133卷 376-381页

作者： L. Schumski F. Ducobu L. Langenhorst J. Sölter B. Karpuschewski Leibniz Institute for Materials Engineering IWT Badgasteiner Straße 3 28359 Bremen Germany University of Bremen MAPEX Center for Materials and Processes Bibliothekstraße 1 28359 Bremen Germany University of Mons (UMONS) Faculty of Engineering (FPMs) Machine Design and Production Engineering Lab 20 Place du Parc B-7000 Mons Belgium

关键词：

来源：评论

学校读者我要写书评

暂无评论

Investigation on cutting fluid use in finish milling of polylactide (PLA) 3D-printed parts 20

Investigation on cutting fluid use in finish milling of poly...

引用

20th CIRP Conference on Modeling of Machining Operations in Mons, CIRP CMMO 2025

作者： Lorenzoni, Margaux Spitaels, Laurent Rivière-Lorphèvre, Edouard Odent, Jérémy M'Saoubi, Rachid Cloëz, Liam Fontaine, Michaël Ducobu, François Machine Design and Production Engineering Lab Research Institute for Materials Science and Engineering University of Mons Place du Parc 20 Mons7000 Belgium University of Mons Place du Parc 20 Mons7000 Belgium R&D Material and Technology Development Seco Tools AB Björnbacksvägen 2 FagerstaSE-737 82 Sweden Department of Mechanical Engineering Sciences Division of Production and Materials Engineering Lund University Ole Römers väg 1 LundSE-221 00 Sweden FEMTO-ST Institute-Applied Mechanics Dept. Université de Franche-Comté-SUPMICROTECH-CNRS Rue de l'épitaphe 24 BesançonF-25000 France

Fused Filament Fabrication (FFF) is an additive manufacturing process based on Material Extrusion (MEX) of polymeric filament. This manufacturing technology is commonly used for personalized production applications and prototyping, allowing to obtain customized parts with complex geometries at a low cost. However, this production technique has its limitations regarding dimensional accuracy and surface roughness of the final parts. To overcome these limitations, finish milling is considered to be a promising technique as it is widely used for metallic parts. Yet, the specific thermal properties of polymers such as low thermal conductivity and low melting temperature are adding a challenge in the determination of optimal cutting conditions. In this context, the use of cutting fluid could be the key to keep the material from melting during milling. Therefore, this paper proposes to compare the impact of using a compressed air flow to dry conditions on the cutting forces and the surface quality obtained on 3D-printed polylactide (PLA) parts. The qualification test of the tool-material couple standard (NF E 66-520-6) will be used as a guideline to determine the relevance of cutting fluid use for cutting conditions varying around an operating point. Moreover, simulated cutting forces using a mechanistic model will be compared to experimental data to evaluate the applicability of the model. © 2025 The Authors.

关键词： Compressed air

来源：评论

学校读者我要写书评

暂无评论

Effect of Cutting Conditions on Surface Integrity when Robotic Drilling of Aluminum 6082-GFRP Stacks

引用

Procedia CIRP 2024年 123卷 428-433页

作者： Thomas Beuscart Pedro-José Arrazola Noémie Tinel François Ducobu Machine Design and Production Engineering Lab Research Institute for Science and Material Engineering UMONS Belgium Escuela Politécnica Superior de Mondragon Unibersitatea Loramendi 4 20500 Mondragon Spain Ecole Nationale Supérieure de Mécanique et d’Aérotechnique E.N.S.M.A 1 Avenue Clément Ader 86960 Futuroscope Cedex France

Six-axis robots are increasingly employed in manufacturing due to their excellent volume on cost ratio and extensive reach, facilitating the machining of large components, including those made of composites. However, this enhanced volume on cost ratio often compromises rigidity. This study investigates the effect of cutting conditions on surface integrity and robotic drilling forces when machining Aluminum 6082-GFRP stacks using 6 mm solid carbide drills and a 6-axis Sta¨ubli TX200 robot. Two distinct drill geometries are assessed in various drilling sequences. Feed rate emerges as a pivotal parameter affecting drilling forces and hole quality. Comprehensive testing encompasses a range of feed rates and drilling strategies in both individual materials and stack sequences. The analysis includes cutting forces and hole quality, considering surface integrity and standard quality indicators such as delamination, arithmetic roughness, and burr height. The research seeks to propose optimal cutting conditions, specifically feed rate and cutting speed, essential for advanced industrial applications. These conditions ensure hole quality and surface integrity, which is particularly important for riveting processes and ensuring effective sealing.

关键词： Drilling Robot Aluminium Composite Surface integrity

来源：评论

学校读者我要写书评

暂无评论

Investigation on cutting fluid use in finish milling of polylactide (PLA) 3D-printed parts

引用

Procedia CIRP 2025年 133卷 656-661页

作者： Margaux Lorenzoni Laurent Spitaels Edouard Rivière-Lorphèvre Jérémy Odent Rachid M’Saoubi Liam Cloëz Michaël Fontaine François Ducobu Machine Design and Production Engineering Lab – Research Institute for Materials Science and Engineering University of Mons Place du Parc 20 7000 Mons Belgium Laboratory of Polymeric and Composite Materials (LMPC) – Center of Innovation and Research in Materials and Polymers (CIRMAP) University of Mons Place du Parc 20 7000 Mons Belgium R&D Material and Technology Development Seco Tools AB Björnbacksvägen 2 SE-737 82 Fagersta Sweden Department of Mechanical Engineering Sciences - Division of Production and Materials Engineering Lund University Ole Römers väg 1 SE-221 00 Lund Sweden FEMTO-ST Institute – Applied Mechanics Dept. Université de Franche-Comté – SUPMICROTECH – CNRS Rue de l’épitaphe 24 F-25000 Besançon France

关键词：

来源：评论

学校读者我要写书评

暂无评论

Surface drag analysis after Ti-6Al-4V orthogonal cutting using grid distortion 5

Surface drag analysis after Ti-6Al-4V orthogonal cutting usi...

引用

5th CIRP Conference on Surface Integrity, CSI 2020

作者： Sela, A. Ortiz-De-Zarate, G. Soler, D. Aristimuño, P. Soriano, D. Germain, G. Ducobu, F. Arrazola, P.J. Faculty of Engineering Mondragon Unibertsitatea Arrasate20500 Spain Arts et Métiers ParisTech CER Angers Laboratoire LAMPA 2 Bd du Ronceray Angers Cedex 149035 France Machine Design and Production Engineering Lab Mons7000 Belgium

Surface integrity directly affects the mechanical behavior of the workpiece, which is especially relevant on fatigue behavior. To characterize the quality of the machined surface, aspects such as material damage, roughness or residual stress are considered. Measurement of the material damage of the surface is characterized in some cases as surface drag, depth of the affected machining zone, a phenomenon which takes place due to plastic strain in the surface layer caused by machining stress which could have an influence on residual stress. Surface drag measurement done with optical microscopes has relevant uncertainty. In this paper, a methodology to measure the surface drag with lower uncertainty is proposed. The method consists of measuring the deformation of a grid as a result of the machining process. The grid was created with micromilling. The method was applied to analyze the effect of feed on the surface integrity after orthogonal cutting of Ti-6Al-4V. The depth of the affected layer was measured using a 3D optical measuring device (Alicona Infinite Focus IFG4) and compared with numerical simulations and a good agreement was achieved. In comparison with optical microscope results, it can be concluded that traditional method underestimates surface drag. © 2020 The Author(s).

关键词： Aluminum alloys

来源：评论

学校读者我要写书评

暂无评论

Surface drag analysis after Ti-6Al-4V orthogonal cutting using grid distortion

引用

Procedia CIRP 2020年 87卷 372-377页

作者： A. Sela G. Ortiz-de-Zarate D. Soler P. Aristimuño D. Soriano G. Germain F. Ducobu P.J. Arrazola Faculty of Engineering Mondragon Unibertsitatea 20500 Arrasate Spain Arts et Métiers ParisTech CER Angers - Laboratoire LAMPA - 2 Bd du Ronceray 49035 Angers Cedex 1 France University of Mons (UMONS) Faculty of Engineering (FPMs) Machine Design and Production Engineering Lab 7000 Mons Belgium

关键词： Surface drag surface integrity orthogonal cutting Ti-6Al-4V

来源：评论

学校读者我要写书评

暂无评论

Coupled Eulerian-Lagrangian (CEL) simulation for modelling of chip formation in AA2024-T3

引用

Procedia CIRP 2019年 82卷 142-147页

作者： F. Ducobu E. Rivière-Lorphèvre M. Galindo-Fernandez S. Ayvar-Soberanis P.-J. Arrazola H. Ghadbeigi University of Mons (UMONS) Faculty of Engineering (FPMs) Machine Design and Production Engineering Lab 20 Place du Parc B-7000 Mons Belgium Department of Mechanical Engineering The University of Sheffield Mappin Street Sheffield S1 3JD UK Advanced Manufacturing Research Centre The University of Sheffield Advanced Manufacturing park Catcliffe Rotherham S60 5TZ UK Mondragon University Faculty of Engineering Mechanical and Manufacturing Department Mondragón 20500 Spain

Aluminium alloys are of the most used alloys in the aeronautic industry. Increasing knowledge in machining and prediction of chip formation in these materials is crucially important to design better components with enhanced functional performance. To achieve this, a new finite element modelling strategy is developed to incorporate material damage and softening in the Coupled Eulerian-Lagrangian (CEL) formulation for the machining of AA2024 alloy. The CEL modelling technique is adopted to simulate chip formation at high cutting speeds. An orthogonal cutting setup is used to compare the modelling predictions with experimentally measured cutting forces and chips sections. The proposed model shows a good ability to reproduce the experimental results and to predict the trends induced by variations in the cutting conditions.

关键词： Finite element method (FEM) Machining Aluminium

来源：评论

学校读者我要写书评

暂无评论

Performance simulation of different toolpaths in 2D1/2 pocket milling

引用

AIP Conference Proceedings 2019年第1期2113卷

作者： Cédric Leroy Edouard Rivière-Lorphèvre Francois Ducobu Sylvain Lavernhe Christoph Tournier Enrico Filippi 1Machine Design and Production Lab – Faculty of Engineering – UMONS Place du Parc 20 – B-7000 MONS – BELGIUM 2LURPA – ENS de CACHAN – avenue du Président Wilson 61 – 94235 CACHAN France

Pocket milling is a common task in manufacturing of aeronautical or space use parts, but also for molds and dies. This process is time-consuming and has an important impact on the cost of the final *** this paper, among all the possible directions of 2D1/2 pocketing improvement, the optimization of toolpath geometry has been chosen. Most of time, the toolpaths are computed from a Computer Aided Manufacturing software using classical tool trajectories such as “zig-zag” or “contour parallel”. These trajectories show discontinuities or local high curvature, creating frequent stop and go of the tool. These toolpaths are, fundamentally, not efficient in High Speed Milling. Some authors and software designers proposed methods to tackle those problems by local modification of the toolpath to improve his higher order continuity. Others, like M. Bieterman, build directly a C2 spiral tool path with low curvature (this strategy propose to solve numerically a 2D Partial Differential Equation problem and to use the iso-curves as structure curves to build the spiral). These strategies are efficient for High Speed Milling but leads to much longer toolpaths, so it can’t be necessarily a beneficial *** goal of this paper is to compare, for 2D1/2 pocket roughing, the time performance of different machining strategies: “zig-zag”, “contour parallel”, morph spiral and “Bieterman” used on different homothetic rectangular pockets. For this purpose, VPOp software developed in the LURPA lab from Cachan is used. With this procedure, it will be possible to see, for which ratios of size, a milling strategy is efficient or not.

关键词：

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：