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Sort articles by: Volume | Date | Most Rates | Most Views | Reviews | Alphabet
1.

A revision on EOQ/JIT indifference points Pages 305-314 Right click to download the paper Download PDF

Authors: Mehdi Rajabi Asadabadi

DOI: 10.5267/j.ijiec.2015.4.001

Keywords: EMQ, EOQ, EPQ, JIT

Abstract:
The overall objective of this paper is to present a comprehensive comparison between the EOQ model and JIT system to see either of them under which circumstances is more cost effective. There have been a few researchers dealing with the EOQ/JIT comparison model to guide companies whether or not switch to JIT or EOQ, however, their proposed models could be more realistic by taking some effective factors, such as hidden costs of a JIT system, interest rate, inflation rate, etc., into account. This research, by considering some less seen costs of both EOQ model and JIT system, develops the previous proposals of the EOQ/JIT model. This paper analyzes the impact of increasing or decreasing some determinant factors such as the interest rate, from cost perspective, to help the decision on whether or not to switch the inventory system, however, to make such a decision, companies may also take some other factors into account. A sensible link is created between the EOQ/JIT model and financial management to assure the decision makers that their financial concerns are observed in this model.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 3234 | Reviews: 0

 
2.

Experimental scrutiny to induce the ramification of cutting parameters in CNC turning of AISI H21 steel employing response surface methodology Pages 315-326 Right click to download the paper Download PDF

Authors: Rajan Jindal, Deepak Choudhary

DOI: 10.5267/j.ijiec.2015.3.003

Keywords: Analysis of variance, Face centered central composite design, Response surface methodology, Surface roughness, Turning process

Abstract:
This paper demonstrates an experimental scrutiny into turning process of hot work tool steel AISI H21 under dry machining plight. In this paper, face centered central composite design concealed by response surface methodology is practiced and analysis of variance is implemented to analyze the eloquent benefaction of machining parameters on responses. To access accommodate between the surface roughness and the MRR, an approach for concurrent optimization of multi-objective characteristics based on comprehensive desirability function is employed. The multi objective optimization concludes a spindle speed of 1599.568 rpm, feed rate of 0.262 mm/rev and depth of cut of 2 mm.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 2189 | Reviews: 0

 
3.

Machining parameter optimization in turning process for sustainable manufacturing Pages 327-338 Right click to download the paper Download PDF

Authors: S. G. Dambhare, S. J. Deshmukh, A. B. Borade

DOI: 10.5267/j.ijiec.2015.3.002

Keywords: ANOVA, RSM, Sustainability, Turning

Abstract:
There is an increase in awareness about sustainable manufacturing process. Manufacturing industries are backbone of a country’s economy. Although it is important but there is a great concern about consumption of resources and waste creation. The primary aim of this study was to explore sustainability concern in turning process in an Indian machining industry. The effect of cutting parameters, Speed/Feed/Depth of Cut, the machining environment, Dry/MQL/Wet, and the type of cutting tool on sustainability factors under study were observed. Analysis of Variance (ANOVA) was used to analyse the data obtained from experimentation in a small scale machining industry. The process is modelled mathematically using response surface methodology (RSM).The economic and environmental aspect like surface roughness, material removal rate and energy consumption were considered as sustainability factors. The model helps to understand the effect of the cutting parameters and conditions on surface finish, energy consumption, and material removal rate. The process was optimized for minimum power consumption considering environmental concern as prime importance. Studies suggest that the cutting environment and tool type influenced on the power consumption during turning process. Extended form of the proposed model could be useful to predict the environmental impact due to machining process, which would bring environmental concern into conventional machining.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 3271 | Reviews: 0

 
4.

Scheduling for production teams Pages 339-350 Right click to download the paper Download PDF

Authors: Yuri Mauergauz

DOI: 10.5267/j.ijiec.2015.3.001

Keywords: Order utility, Production intensity, Scheduling

Abstract:
This paper presents a method of calendar (weekly) scheduling for production teams, when the average orders utility function is used as the quality criterion. The method is based on the concept of “production intensity”, which is a dynamic parameter of production process. Applied software package allows scheduling for medium quantity of jobs. The result of software application is the team load on the planning horizon. The computed schedule may be corrected and recalculated in interactive mode. Current load of every team is taken into account at each recalculation. The method may be used for any combination of complex and specialized teams.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 1857 | Reviews: 0

 
5.

An experimental investigation and statistical modelling for trim cutting operation in WEDM of Nimonic-90 Pages 351-364 Right click to download the paper Download PDF

Authors: Vinod Kumar, Vikas Kumar, Kamal Kumar Jangra

DOI: 10.5267/j.ijiec.2015.2.006

Keywords: Desirability function, Nimonic-90, Response surface methodology (RSM), Trim cutting, Wire electrical discharge machining

Abstract:
Trim cutting operation in wire electrical discharge machining (WEDM) is considered as a probable solution to improve surface characteristics and geometrical accuracy by removing very small amount of work materials from the surface obtained after a rough cutting operation. In this study, an attempt has been made to model the surface roughness and dimensional shift in trim cutting operations in WEDM process through response surface methodology (RSM). Four process parameters; namely pulse-on time (Ton), servo voltage (SV), wire depth (Wd) and Dielectric flow rate (FR) have been considered as input parameters in trim cutting operations for modelling. Desirability function has been employed to optimize multi performance characteristics. Increasing the value of Ton, Wd and FR increases the surface roughness and dimensional shift but increasing SV decreases both surface roughness and dimensional shift. Quadratic models have been proposed for both the performance characteristics. In present experimentation, thickness of recast layer was observed in the range of 6?m to 12?m for low to high value of discharge parameters.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 2477 | Reviews: 0

 
6.

Integer batch scheduling problems for a single-machine with simultaneous effect of learning and forgetting to minimize total actual flow time Pages 365-378 Right click to download the paper Download PDF

Authors: Rinto Yusriski, Sukoyo Sukoyo, T.M.A Ari Samadhi, Abdul Hakim Halim

DOI: 10.5267/j.ijiec.2015.2.005

Keywords: Actual flow time, Integer batch scheduling, Learning and forgetting effect

Abstract:
This research discusses an integer batch scheduling problems for a single-machine with position-dependent batch processing time due to the simultaneous effect of learning and forgetting. The decision variables are the number of batches, batch sizes, and the sequence of the resulting batches. The objective is to minimize total actual flow time, defined as total interval time between the arrival times of parts in all respective batches and their common due date. There are two proposed algorithms to solve the problems. The first is developed by using the Integer Composition method, and it produces an optimal solution. Since the problems can be solved by the first algorithm in a worst-case time complexity O(n2n-1), this research proposes the second algorithm. It is a heuristic algorithm based on the Lagrange Relaxation method. Numerical experiments show that the heuristic algorithm gives outstanding results.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 2273 | Reviews: 0

 
7.

Process parameter optimization based on principal components analysis during machining of hardened steel Pages 379-390 Right click to download the paper Download PDF

Authors: Suryakant B. Chandgude, Padmakar J. Pawar, Mudigonda Sadaiah

DOI: 10.5267/j.ijiec.2015.2.004

Keywords: AISI D2, End milling, Principal components analysis

Abstract:
The optimum selection of process parameters has played an important role for improving the surface finish, minimizing tool wear, increasing material removal rate and reducing machining time of any machining process. In this paper, optimum parameters while machining AISI D2 hardened steel using solid carbide TiAlN coated end mill has been investigated. For optimization of process parameters along with multiple quality characteristics, principal components analysis method has been adopted in this work. The confirmation experiments have revealed that to improve performance of cutting; principal components analysis method would be a useful tool.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 2435 | Reviews: 0

 
8.

Dealing with customers enquiries simultaneously under contingent situation Pages 391-404 Right click to download the paper Download PDF

Authors: Sujan Piya

DOI: 10.5267/j.ijiec.2015.2.003

Keywords: Contingent order, Make-to-Order, Negotiation, Quotation

Abstract:
This paper proposes a method to quote the due date and the price of incoming orders to multiple customers simultaneously when the contingent orders exist. The proposed method utilizes probabilistic information on contingent orders and incorporates some negotiation theories to generate quotations. Rather than improving the acceptance probability of quotation for single customer, the method improves the overall acceptance probability of quotations being submitted to the multiple customers. This helps increase the total expected contribution of company and acceptance probability of entire new orders rather than increasing these measures only for a single customer. Numerical analysis is conducted to demonstrate the working mechanism of proposed method and its effectiveness in contrast to sequential method of quotation.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 1802 | Reviews: 0

 
9.

Solving uncapacitated multiple allocation p-hub center problem by Dijkstra’s algorithm-based genetic algorithm and simulated annealing Pages 405-418 Right click to download the paper Download PDF

Authors: Masoud Rabbani, Seyed Mahmood Kazemi

DOI: 10.5267/j.ijiec.2015.2.002

Keywords: Dijkstra’s algorithm, Genetic Algorithm, P-hub center problem, Simulated Annealing

Abstract:
In the existing literature, there are a huge number of studies focused on p-hub median problems and inventing heuristic or metaheuristic algorithms for solving them. But such analogous body of literature does not exist for its counterpart problem; p-hub center problem. In fact, since p-hub center has been lately introduced and has a particular objective function, minimizing the maximum cost between origin-destination nodes, there are few studies investigating the problem and the challenges for solving it. In this study, after presenting a complete definition of the uncapacitated multiple allocation p-hub center problem (UMApHCP) two well-known metaheuristic algorithms are proposed to solve the problem for small scale and large scale standard data sets. These two algorithms are one single solution-based algorithm, Simulated Annealing (SA), and one population-based metaheuristic, Genetic Algorithm (GA). Because of the particular nature of the problem, Dijkstra’s algorithm has been incorporated in the fitness function calculation part of the proposed methods. The numerical results of running the GA and SA for standard test problems show that for smaller scale test problems, single solution-based SA shows greater performance versus GA but for larger scales of data sets the GA generally yield more desirable solutions.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 3900 | Reviews: 0

 
10.

Sensitivity analysis for casting process under stochastic modelling Pages 419-432 Right click to download the paper Download PDF

Authors: Amit Kumar, Aman Kumar Varshney, Mangey Ram

DOI: 10.5267/j.ijiec.2015.2.001

Keywords: Casting Model, Cost-effectiveness, Foundry Work, Sensitivity Analysis, System Safety

Abstract:
The present paper studies the reliability analysis of the casting process in foundry work using a probabilistic approach. As foundry industries in many developing countries suffer from poor quality of casting due to improper management, lack of resources and wrong working methods followed, which results in the decrement of productivity. Hence, to ensure the quality and productivity, favorable steps must be taken. The considered casting system has four main types of defects; namely mold shift, shrinkage, cold shut and blowholes. The complete casting system can fail due to the misalignment of the mold and combination of defects such as shrinkage and blow holes and can also fail by defects of shrinkage, blow holes and cold shut, simultaneously. The system is analyzed with the help of the supplementary variable technique and Laplace transformation. The availability, reliability, mean time to failure, sensitivity analysis and cost-effectiveness have been evaluated for the considered system. The results have been shown with the help of graphs, which predicts the behavior of the casting process system when any one of the defect or more than one defect appears.
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Journal: IJIEC | Year: 2015 | Volume: 6 | Issue: 3 | Views: 2206 | Reviews: 0

 

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