513 Hits in 4.6 sec

Balancing large-scale machining lines with multi-spindle heads using decomposition

A. Dolgui, B. Finel, O. Guschinskaya, N. Guschinsky, G. Levin, F. Vernadat
2006 International Journal of Production Research  
The paper deals with optimal logical layout design for a type of machining lines. Such lines are made of many machine-tools (workstations) located in sequence.  ...  On each workstation there are several multi-spindle heads. A spindle-head does not execute one operation but a block of machining operations simultaneously.  ...  It concerns the machining lines with multi-spindle heads. Each multi-spindle head executes simultaneously a block of operations.  ... 
doi:10.1080/00207540600632232 fatcat:wztowzh5hreeffx2pt6ydxnvbi

Directions in cooperative processing between workstations and hosts

B. C. Goldstein, A. R. Heller, F. H. Moss, I. Wladawsky-Berger
1984 IBM Systems Journal  
A hy- perbolic solution to that problem might have sounded like this: Take the four hundred spindles of DASD connected to the mainframe, throw away the mainframe, place one spindle on each employee’s desk  ...  The optimal situation is simply to offload the appli- cation onto the workstation.  ... 
doi:10.1147/sj.233.0236 fatcat:tbrd3iwstbaf3gotbkstn7pedi

Modular Machining Line Design and Reconfiguration: Some Optimization Methods [chapter]

S. Belmokhtar, A.I. Bratcu, A. Dolgui
2006 Manufacturing the Future  
Figure 3 illustrates such a line with 2 workstations. The first workstation is equipped with 2 multi-spindles whereas the second has only one unit. Each unit is composed of two spindles.  ...  The modules in such lines are the multi-spindle units. Figure 1 illustrates a unit with 2 spindles.  ...  Bratcu and A. Dolgui (2006) The Author(s). Licensee IntechOpen.  ... 
doi:10.5772/5047 fatcat:enzba6nplbgxxhybdifdfiuxjq

Balancing Machining Lines: a Two-phase Heuristic

Mohamed ESSAFI, Xavier DELORME, Alexandre DOLGUI
2010 Studies in Informatics and Control  
This paper considers balancing machining lines with parallel machines and sequence-dependent setup times. The goal is to minimize the number of machines for a given cycle time.  ...  Such lines are paced, i.e. parts are moved from one station to the next with a given cadence (defined by the line cycle time). At least one machine is installed at each station.  ...  These lines are composed of multi-spindle machines where several operations are executed simultaneously using special equipment (multi-spindle heads).  ... 
doi:10.24846/v19i3y201004 fatcat:lq5n4r2o7zdblnywejcvihesym

A Survey on Bottelneck Analysis for Industrial Production

Mr. Kuldeep Kumar Verma, Mr. Vivek Babele
2018 IJOSTHE  
This paper discuss about different bottleneck balancing problem, process planning and line configuration.  ...  For optimize bottleneck is must to be design features of the product are grouped and machining operations are sequenced in an optimal manner.  ...  [4] proposed an interesting MIP model for a new line design and balancing problem which dealt with modular machining lines with multi-spindle stations.  ... 
doi:10.24113/ojssports.v5i1.65 fatcat:3petd56cxfg65asctx7yoilvuq

Flow line balancing problem: A survey

Olga Battaia, Xavier Delorme, Alexandre Dolgui, Grimaud Frederic, Brigitte Finel
2015 2015 International Conference on Industrial Engineering and Systems Management (IESM)  
In this paper we present a survey of flow lines balancing problem, their approach and formulation and some solutions to optimize them studied in the literature.  ...  Flow lines are widely used in mechanical industry. They consist to a set of workstations through which parts are manufactured.  ...  This problem was considered for transfer machining lines with multi-spindle heads in [53] , [54] , [36] , with partitioning problem in [55] , [56] , [57] , and also in [58] , [59] , [60] , [61  ... 
doi:10.1109/iesm.2015.7380287 fatcat:asoeqibiczgb3pxv72a74ekzxa

Multi-Objective Approach for Production Line Equipment Selection

H. Chehade, A. Dolgui, F. Dugardin, L. Makdessian, F. Yalaoui
2012 Management and Production Engineering Review  
Accepted: 10 January 2012 A novel problem dealing with design of reconfigurable automated machining lines is considered. Such lines are composed of workstations disposed sequentially.  ...  These two genetic algorithms (with and without local search) are tested for several line examples and for two versions of the considered problem: bi-objective and four-objective cases.  ...  The authors thank Chris Yukna for his help with English.  ... 
doi:10.2478/v10270-012-0001-5 fatcat:g7jqaffjibeirjm7k7tgnfrqci

A Linearization And Decomposition Based Approach To Minimize The Non-Productive Time In Transfer Lines

Hany Osman, M. F. Baki
2013 Zenodo  
The problem is represented by a mixed integer programming model that aims at distributing the design features to workstations and sequencing the machining processes at a minimum non-productive time.  ...  We address the balancing problem of transfer lines in this paper to find the optimal line balancing that minimizes the nonproductive time.  ...  A transfer line comprising machines with rotary tables is studied in [18] . The problem is represented as a constrained shortest path problem.  ... 
doi:10.5281/zenodo.1061306 fatcat:daqpsai6l5btbprisnc6kgafbe


Alexandre Dolgui, Nikolai Guschinsky, Genrikh Levin
2002 IFAC Proceedings Volumes  
This paper is devoted to a preliminary design problem of paced automatic transfer lines.  ...  The paper focuses on a mathematical model of the problem and a method to solve it. The proposed method is based on the transformation of the initial problem into a constrained shortest path problem.  ...  In this paper, a problem of optimal logical layout (generalized line balancing problem) for the class of transfer lines with blocks of operations is investigated.  ... 
doi:10.3182/20020721-6-es-1901.00004 fatcat:nle33mawsrbbvarb6slsrptoti

Optimizing Modular Machining Line Design Problem with Mixed Activation Mode of Machining Units

Alexandre Dolgui, Ivan Ignatenko, Sana Belmokhtar, Xavier Delorme
2007 Decision Making in Manufacturing and Services  
A modular transfer line designing problem is investigated.  ...  The investigated lines have a mixed activation mode for the machining units of each station, i.e. the units of each station are arranged into a series of stages such that each stage is composed of several  ...  The study deals with completely automatic machining lines using multi-spindle units as modules such that each multi-spindle can perform one or several operations.  ... 
doi:10.7494/dmms.2007.1.2.35 fatcat:24yr3hqj7fazrkkcd42o7ed2pq

Modern machining of die and mold tools

P. Krajnik, J. Kopač
2004 Journal of Materials Processing Technology  
Modern production of die and mold tools is quite different in comparison with conventional machining.  ...  High-speed cutting (HSC) principles are not applicable with conventional machine-tools. Difference between conventional and high-speed cutting velocity is analysed on chip formation.  ...  Leszek A. Dobrzański.  ... 
doi:10.1016/j.jmatprotec.2004.07.146 fatcat:oswsy75hrfbfpixxuvctesuwsu

A Polynomial Algorithm For Balancing a Sequence of Operations in Reconfigurable Transfer Lines

Y. Lahrichi, L. Deroussi, N. Grangeon, S. Norre
2019 IFAC-PapersOnLine  
The problem consists into allocating a set of operations (necessary to machine a single part) to different workstations placed into a serial line.  ...  The machines considered are mono-spindle head CNC machines which imply setup times between operations in order to perform tool changes.  ...  The RTL we consider is equipped with mono-spindle head CNC machines. Those machines can perform a large set of operations, each machine being equipped with a tool magazine.  ... 
doi:10.1016/j.ifacol.2019.11.322 fatcat:o7jr6cxjpbahjmeyssuoxbuwia

A Transfer Line Balancing Problem by Heuristic Methods: Industrial Case Studies

Alexandre Dolgui, Olga Guschinskaya
2008 Decision Making in Manufacturing and Services  
The paper deals with the problem of optimal configuration of a type of transfer lines which are equipped with transfer machines.  ...  The quantity of machines and spindle heads used to produce a part with the given productivity rate defines the final cost of the transfer line which must be minimized.  ...  An important industrial problem was considered: the configuration of transfer lines equipped by multi-spindle machines.  ... 
doi:10.7494/dmms.2008.2.2.33 fatcat:5lto3q7kanarho3qeuoyzjyari

Decomposition Methods To Optimise The Structure And Parameters Of Transfer Line With Parallel And Sequential Machining

Alexandre DOLGUI, Nikolay N. GUSCHINSKY, Genrikh M. LEVIN
2003 Analele Universităţii "Dunărea de Jos" Galaţi: Fascicula III, Electrotehnică, Electronică, Automatică, Informatică  
The paper is devoted to a preliminary design problem of paced automatic transfer lines.  ...  For solving the optimisation problem, a special decomposition scheme is proposed, which is based on parametric decomposition technique as well as on Branch-and-Bound and multi-criteria shortest path algorithms  ...  INTRODUCTION In this paper, the preliminary design stage of transfer lines with multi-head machines is considered.  ... 
doaj:e59231eb6d694ecc92965a52528cd916 fatcat:akculjcd5faglopmrbyh2mepqy


Alexandre Dolgui, Nikolai Guschinsky, Genrikh Levin
2005 IFAC Proceedings Volumes  
A balancing problem for transfer lines with workstations in series and simultaneously executed blocks of operations is considered.  ...  The problem is to choose blocks from a given set and to assign them to workstations while minimizing the line cost and satisfying the above constraints. A combined heuristic approach is proposed.  ...  CONCLUSION A combined heuristic approach has been presented to find a "good" design decision for balancing a transfer line with simultaneously activated spindle heads at workstations.  ... 
doi:10.3182/20050703-6-cz-1902.01468 fatcat:rn2js2twk5dojollfanakfdfo4
« Previous Showing results 1 — 15 out of 513 results