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Pervaiz, S., Deiab, I., Wahba, E., Rashid, A. & Nicolescu, M. (2018). A numerical and experimental study to investigate convective heat transfer and associated cutting temperature distribution in single point turning. The International Journal of Advanced Manufacturing Technology, 94(1-4), 897-910
Open this publication in new window or tab >>A numerical and experimental study to investigate convective heat transfer and associated cutting temperature distribution in single point turning
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2018 (English)In: The International Journal of Advanced Manufacturing Technology, ISSN 0268-3768, E-ISSN 1433-3015, Vol. 94, no 1-4, p. 897-910Article in journal (Refereed) Published
Abstract [en]

During the metal cutting operation, heat generation at the cutting interface and the resulting heat distribution among tool, chip, workpiece, and cutting environment has a significant impact on the overall cutting process. Tool life, rate of tool wear, and dimensional accuracy of the machined surface are linked with the heat transfer. In order to develop a precise numerical model for machining, convective heat transfer coefficient is required to simulate the effect of a coolant. Previous literature provides a large operating range of values for the convective heat transfer coefficients, with no clear indication about the selection criterion. In this study, a coupling procedure based on finite element (FE) analysis and computational fluid dynamics (CFD) has been suggested to obtain the optimum value of the convective heat transfer coefficient. In this novel methodology, first the cutting temperature was attained from the FE-based simulation using a logical arbitrary value of convective heat transfer coefficient. The FE-based temperature result was taken as a heat source point on the solid domain of the cutting insert and computational fluid dynamics modeling was executed to examine the convective heat transfer coefficient under similar condition of air interaction. The methodology provided encouraging results by reducing error from 22 to 15% between the values of experimental and simulated cutting temperatures. The methodology revealed encouraging potential to investigate convective heat transfer coefficients under different cutting environments. The incorporation of CFD modeling technique in the area of metal cutting will also benefit other peers working in the similar areas of interest.

Place, publisher, year, edition, pages
SPRINGER LONDON LTD, 2018
Keywords
Finite element modeling, Cutting temperature, Computational fluid dynamics, Convective heat transfer coefficient, Machining, Titanium alloys
National Category
Robotics
Identifiers
urn:nbn:se:kth:diva-221865 (URN)10.1007/s00170-017-0975-9 (DOI)000419114100070 ()2-s2.0-85028012749 (Scopus ID)
Note

QC 20180131

Available from: 2018-01-31 Created: 2018-01-31 Last updated: 2018-01-31Bibliographically approved
Abdullah Asif, F. M., Roci, M., Lieder, M., Rashid, A., Štimulak, M., Halvordsson, E. & De Bruijckere, R. (2018). A practical ICT framework for transition to circular manufacturing systems. In: Procedia CIRP: . Paper presented at 51st CIRP Conference on Manufacturing Systems, CIRP CMS 2018, 16 May 2018 through 18 May 2018 (pp. 598-602). Elsevier
Open this publication in new window or tab >>A practical ICT framework for transition to circular manufacturing systems
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2018 (English)In: Procedia CIRP, Elsevier, 2018, p. 598-602Conference paper, Published paper (Refereed)
Abstract [en]

The transition towards a circular economy has become important. Manufacturing industry being a major stakeholder in this transition has started exploring the potential of this transition and challenges in implementation. Ambitious companies such as Gorenje d.d. has taken the circular economy transition seriously and aims to become a pioneer in implementing circular manufacturing systems. One vital step in this transition is the business model shift from the linear (sales model) to a circular model such as 'product as a service'. This brings new challenges to Original Equipment Manufacturers (OEMs) that have never been experienced in their conventional businesses. One of the challenges is to establish an information communication and technology (ICT) infrastructure that enables information management and sharing as well as establishes a real-time communication between relevant stakeholders. Outlining such an ICT infrastructure is the objective of this paper.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Business models, Circular economy, Circular manufactuirng systems, ICT, Information management, Business modeling, ICT infrastructures, Information communication and technology, Manufacturing industries, Original equipment manufacturers, Real-time communication, Manufacture
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:kth:diva-236411 (URN)10.1016/j.procir.2018.03.311 (DOI)2-s2.0-85049582325 (Scopus ID)
Conference
51st CIRP Conference on Manufacturing Systems, CIRP CMS 2018, 16 May 2018 through 18 May 2018
Note

QC 20181026

Available from: 2018-10-26 Created: 2018-10-26 Last updated: 2018-10-26Bibliographically approved
Frangoudis, C., Rashid, A. & Nicolescu, C. M. (2017). Development and analysis of a consciously designed Joint Interface Module for improvement of a machining system's dynamic performance. The International Journal of Advanced Manufacturing Technology, 88(1-4), 507-518
Open this publication in new window or tab >>Development and analysis of a consciously designed Joint Interface Module for improvement of a machining system's dynamic performance
2017 (English)In: The International Journal of Advanced Manufacturing Technology, ISSN 0268-3768, E-ISSN 1433-3015, Vol. 88, no 1-4, p. 507-518Article in journal (Refereed) Published
Abstract [en]

Machining vibrations and dynamic instability of machine tools is an important consideration in machining systems. Common approaches for improving their dynamic performance target either the process, or intelligent, yet complex control systems with actuators. Given that machine tools' dynamic characteristics are largely defined by the characteristics of the joints, this article proposes a novel concept, attempting to create a new paradigm for improving the dynamic behaviour of machine tools-introducing modular machine tools components (Joint Interface Modules-JIMs) with joints deliberately designed for increasing dynamic stiffness and enhancing damping with the use of viscoelastic materials. Through a systematic model-based design process, a prototype replicating a reference tool holder was constructed exploiting viscoelastic materials and the dynamic response of the machining system was improved as a result of its introduction; in machining experiments, the stability limit was increased from around 2 mm depth of cut to 4 mm depth of cut, without compromising the rigidity of the system or changing the process parameters. The article also includes the results of investigations regarding the introduction of such prototypes in a machine tool and discusses the shortcomings of the stability lobe diagrams as a method for evaluating the performance of machine tool components with viscoelastically treated joints.

Place, publisher, year, edition, pages
Springer London, 2017
Keywords
Machine tool, Milling, Vibrations, Joints, Damping, Viscoelastic
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:kth:diva-202444 (URN)10.1007/s00170-016-8781-3 (DOI)000392308400044 ()2-s2.0-85009726941 (Scopus ID)
Funder
Swedish e‐Science Research CenterEU, FP7, Seventh Framework Programme, 260048XPRES - Initiative for excellence in production research
Note

QC 20170306

Available from: 2017-03-06 Created: 2017-03-06 Last updated: 2017-11-29Bibliographically approved
Pervaiz, S., Deiab, I., Rashid, A. & Nicolescu, M. (2017). Minimal quantity cooling lubrication in turning of Ti6Al4V: Influence on surface roughness, cutting force and tool wear. Proceedings of the Institution of mechanical engineers. Part B, journal of engineering manufacture, 231(9), 1542-1558
Open this publication in new window or tab >>Minimal quantity cooling lubrication in turning of Ti6Al4V: Influence on surface roughness, cutting force and tool wear
2017 (English)In: Proceedings of the Institution of mechanical engineers. Part B, journal of engineering manufacture, ISSN 0954-4054, E-ISSN 2041-2975, Vol. 231, no 9, p. 1542-1558Article in journal (Refereed) Published
Abstract [en]

Titanium alloys generally show low machinability ratings. They are referred as difficult-to-cut materials due to their inherent properties such as low thermal conductivity, high chemical reactivity and high strength at elevated temperatures. Cooling strategies play an important role to improve the machining performance of the cutting process. In order to facilitate the heat dissipation from the cutting zone, generous amount of coolant is used when machining highly reactive metals such as titanium alloys. Generally, cutting coolants are nominated as pollutants due to their non-biodegradable nature. This article presents experimental evaluation of a minimal quantity cooling lubrication system. The study investigates a combination of sub-zero-temperature air and vegetable oil-based mist as possible environmentally benign alternative to conventional cooling methods. The results are compared with the dry and flood cutting environments as well. Machinability was evaluated experimentally by considering the surface finish, cutting forces, tool life and their associated tool wear mechanisms. It was concluded from the results obtained from the surface roughness, cutting force and tool life investigation that minimal quantity cooling lubrication (internal) cooling strategy has encouraging potential to replace the conventional flood cooling method.

Place, publisher, year, edition, pages
Sage Publications, 2017
Keywords
Titanium alloys, minimal quantity cooling lubrication, sustainable machining, lubrication, cooling strategies, tool wear
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:kth:diva-210999 (URN)10.1177/0954405415599946 (DOI)000404030300004 ()2-s2.0-85021206613 (Scopus ID)
Note

QC 20170807

Available from: 2017-08-07 Created: 2017-08-07 Last updated: 2017-08-07Bibliographically approved
Pervaiz, S., Rashid, A., Deiab, I. & Nicolescu, C. M. (2016). An experimental investigation on effect of minimum quantity cooling lubrication (MQCL) in machining titanium alloy (Ti6Al4V). The International Journal of Advanced Manufacturing Technology, 87(5-8), 1371-1386
Open this publication in new window or tab >>An experimental investigation on effect of minimum quantity cooling lubrication (MQCL) in machining titanium alloy (Ti6Al4V)
2016 (English)In: The International Journal of Advanced Manufacturing Technology, ISSN 0268-3768, E-ISSN 1433-3015, Vol. 87, no 5-8, p. 1371-1386Article in journal (Refereed) Published
Abstract [en]

During the machining operation, elevated temperatures are achieved at the cutting interface due to the presence of high plastic deformation and friction in between the tool and chip contacting area. Efficient heat dissipation from the cutting interface is required to achieve better machining performance. Elevated temperature in the cutting area results in lower tool life as it facilitates different types of wear mechanisms. Metal working fluids (MWFs) are employed to reduce heat and friction in the cutting zone, simultaneously to help in the flushing of waste particles. The MWFs are based on either water or petroleum oil and include several additives which make them non-biodegradable and toxic in nature. The minimum quantity lubrication (MQL) method offers a feasible substitute to the MWF-based conventional flood cooling method. In this study, a vegetable oil-based MQL system was mixed with sub-zero temperature air to design a new minimum quantity cooling lubrication (MQCL) system. The study investigates the machinability of Ti6Al4V using an MQCL system under various oil flow rates and compared its machining performance with both dry cutting and conventional flood cooling. For further evaluation, the study investigated surface roughness, flank wear, and associated wear mechanisms. It was found that in the MQCL system (60–70 ml/h), oil supply rates provided reliable machining performance at higher feed levels.

Place, publisher, year, edition, pages
Springer London, 2016
Keywords
Biodegradable, Machinability, MQCL, MQL, Titanium, Tools, Turning, Wear, Air lubrication, Cooling, Cutting fluids, Floods, Fluids, Friction, Lubrication, Metal cutting, Metal working, Petroleum additives, Surface roughness, Thermal processing (foods), Titanium alloys, Tribology, Wear of materials, Experimental investigations, Machining operations, Machining performance, Minimum quantity cooling, Minimum quantity lubrication, Sub-zero temperatures, Cutting tools
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
urn:nbn:se:kth:diva-197092 (URN)10.1007/s00170-016-8969-6 (DOI)000387307600015 ()2-s2.0-84973659680 (Scopus ID)
Note

QC 20161213

Available from: 2016-12-13 Created: 2016-11-30 Last updated: 2018-01-13Bibliographically approved
Lieder, M., de Bruijckere, R., Abdullah Asif, F. M., Löfstrand, M. & Rashid, A. (2016). An IT-platform prototype as enabler for service-based business models in manufacturing industry. In: : . Paper presented at 7th Swedish Production Symposium, Lund, Sweden. Teknikföretagen
Open this publication in new window or tab >>An IT-platform prototype as enabler for service-based business models in manufacturing industry
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2016 (English)Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
Teknikföretagen, 2016
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-196795 (URN)
Conference
7th Swedish Production Symposium, Lund, Sweden
Note

QC 20170110

Available from: 2016-11-22 Created: 2016-11-22 Last updated: 2017-01-10Bibliographically approved
FU, Q. & Rashid, A. (2016). Constraining the shear strain in viscoelastic materials and utlization of the “incompressible” properties for damping treatment in hybrid joint interface module to improve their effect for vibration control in machining. The International Journal of Advanced Manufacturing Technology, 83(5), 1079-1097
Open this publication in new window or tab >>Constraining the shear strain in viscoelastic materials and utlization of the “incompressible” properties for damping treatment in hybrid joint interface module to improve their effect for vibration control in machining
2016 (English)In: The International Journal of Advanced Manufacturing Technology, ISSN 0268-3768, E-ISSN 1433-3015, Vol. 83, no 5, p. 1079-1097Article in journal (Refereed) Published
Abstract [en]

A hybrid joint interface module (HJIM) was developed using viscoelastic materials’ (VEM) “incompressible” property. The HJIM composes VEM layers compressed by screws. Its static stiffness and damping had been characterized by inverse receptance method. The analysis result showed that its static stiffness increases by nearly 50 % with increasing compression preload without compromising its loss factor. A comparison study of HJIM with a viscoelastic material joint interface module (VJIM) revealed that the change of the screws mechanical contact conditions affected the HJIM’s stiffness. Compression preload by fastening the screws, however, did not significantly affect the damping property of the HJIM. On the contrary to shear pre-strain, compression preload did not affect the VEM’s properties shown by studying the VJIM case. A workpiece was studied while fixed on the HJIM. Varying compression preload affected the stiffness of HJIM and that resulted in increased shear strain in VEM for certain modes while decreased shear strain in VEM for other modes. The affected shear strain in VEM altered the vibrational strain energy distribution and changed the receptance amplitude of different modes. In addition to apply the VEM where it is significantly strained, the analysis revealed that constraining the shear strain in VEM resulted in reduced receptance amplitude for different modes. The changes of receptance will further affect the vibration conditions in machining.

Keywords
Machining; Vibration; Damping; Viscoelastic materials; Inverse receptance coupling; Hybrid joint interface module;
National Category
Production Engineering, Human Work Science and Ergonomics Applied Mechanics
Research subject
Production Engineering
Identifiers
urn:nbn:se:kth:diva-176865 (URN)10.1007/s00170-015-7487-2 (DOI)000371324500035 ()2-s2.0-84959146038 (Scopus ID)
Projects
PoPJIM
Funder
EU, FP7, Seventh Framework Programme, 260048
Note

QC 20160407

Available from: 2015-11-10 Created: 2015-11-10 Last updated: 2017-12-01Bibliographically approved
Abdullah Asif, F. M., Lieder, M. & Rashid, A. (2016). Multi-method simulation based tool to evaluate economic and environmental performance of circular product systems. Journal of Cleaner Production, 139, 1261-1281
Open this publication in new window or tab >>Multi-method simulation based tool to evaluate economic and environmental performance of circular product systems
2016 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 139, p. 1261-1281Article in journal (Refereed) Published
Abstract [en]

Purpose: The transition from linear to circular product systems is a big step for any organization. This may require an organization to change the way it does business, designs product and manages supply chain. As these three areas are interdependent, bringing change in one area will influence the others, for instance, changing the business model from conventional sales to leasing will demand changes in both product design and the supply chain. At the same time, it is essential for an organization to anticipate the economic and environmental impact of all changes before it may decide to implement the circular product systems. However, there is no tool available today that can assess economic and environmental performance of circular product systems. The purpose of this research is to develop a multi-method simulation based tool that can help to evaluate economic and environmental performance of circular product systems. Method: The conceptual models that are used to develop the tool have been formulated based on review of the state-of-the-art research. System Dynamics (SD) and Agent Based (AB) principles have been used to create the simulation model which has been implemented in Anylogic software platform. Originality: This research presents the first multi-method simulation based tool that can evaluate economic and environmental performance of circular product systems. Findings: Multi-method simulation technique is useful in designing dynamic simulation model that takes into consideration mutual interactions among critical factors of business model, product design and supply chain. It also allows predicting system's behaviour and its influence on the economic and environmental performance of circular product systems.

Place, publisher, year, edition, pages
Elsevier, 2016
National Category
Environmental Sciences
Identifiers
urn:nbn:se:kth:diva-198948 (URN)10.1016/j.jclepro.2016.08.122 (DOI)000386991600115 ()2-s2.0-84995646374 (Scopus ID)
Note

QC 20170113

Available from: 2017-01-13 Created: 2016-12-22 Last updated: 2017-11-29Bibliographically approved
Lieder, M. & Rashid, A. (2016). Towards circular economy implementation: a comprehensive review in context of manufacturing industry. Journal of Cleaner Production, 115, 36-51
Open this publication in new window or tab >>Towards circular economy implementation: a comprehensive review in context of manufacturing industry
2016 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 115, p. 36-51Article, review/survey (Refereed) Published
Abstract [en]

The concept of circular economy (CE) is to an increasing extent treated as a solution to series of challenges such as waste generation, resource scarcity and sustaining economic benefits. However the concept of circularity is not of novel as such. Specific circumstances and motivations have stimulated ideas relevant to circularity in the past through activities such as reuse, remanufacturing or recycling. Main objectives of this work are: to provide a comprehensive review of research efforts encompassing aspects of resources scarcity, waste generation and economic advantages; to explore the CE landscape in the context of these three aspects especially when they are considered simultaneously; based on an idea of a comprehensive CE framework, propose an implementation strategy using top-down and bottom-up approach in a concurrent manner. To fulfill this objective a comprehensive review of state-of-the-art research is carried out to understand different ideas relevant to CE, motivation for the research and context of their recurrence. Main contributions of this paper are a comprehensive CE framework and a practical implementation strategy for a regenerative economy and natural environment. The framework emphasizes on a combined view of three main aspects i.e. environment, resources and economic benefits. It also underlines that joint support of all stakeholders is necessary in order to successfully implement the CE concept at large scale. The proposed framework and implementation strategy also identify new avenues for future research and practice in the field of CE.

Place, publisher, year, edition, pages
Elsevier, 2016
Keywords
Circular economy, Framework, Implementation, Resource scarcity, Environmental impact, Economic benefits
National Category
Information Systems, Social aspects
Identifiers
urn:nbn:se:kth:diva-184541 (URN)10.1016/j.jclepro.2015.12.042 (DOI)000371187500004 ()2-s2.0-84957849870 (Scopus ID)
Note

QC 20160406

Available from: 2016-04-06 Created: 2016-04-01 Last updated: 2017-11-30Bibliographically approved
Krajnik, P., Rashid, A., Pusavec, F., Remskar, M., Yui, A., Nikkam, N. & Toprak, M. S. (2016). Transitioning to sustainable production - part III: developments and possibilities for integration of nanotechnology into material processing technologies. Journal of Cleaner Production, 112, 1156-1164
Open this publication in new window or tab >>Transitioning to sustainable production - part III: developments and possibilities for integration of nanotechnology into material processing technologies
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2016 (English)In: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 112, p. 1156-1164Article in journal (Refereed) Published
Abstract [en]

A nanoparticle-based cooling-lubricating fluid (nCLF), designed and fabricated by suspending engineered nanoparticles (ENPs) in biodegradable vegetable-based fluids, has been developed for integration into material processing technologies. This new product exhibits tribological properties superior to those of conventional metalworking fluids. The major innovation is the ability to create a stable nCLF through the modification of ENP surfaces. Functionalized MoS2 nanotube ENPs were successful used as low friction additives. The experimental work, required for the proof-of-concept and technology validation, was carried out on three different levels to quantify the improved tribological behavior of nCLF. These experiments include standard tribological tests, mock-up tests to simulate machining, and actual machining tests. It is demonstrated that the specific properties of ENPs, fluid design and composition, as well as specific lubrication mechanisms, exhibit superior performance of nCLF in terms of friction and wear. The objective of this paper is to demonstrate how recent nanotechnology developments support innovation needed for transitioning to sustainable production via new product development and integrated industrial applications.

Place, publisher, year, edition, pages
Elsevier, 2016
Keywords
Sustainability, Manufacturing, Nanotechnology, Machining, Minimum quantity lubrication, Tribology
National Category
Environmental Sciences
Identifiers
urn:nbn:se:kth:diva-182849 (URN)10.1016/j.jclepro.2015.08.064 (DOI)000368206700119 ()
Note

QC 20160224

Available from: 2016-02-24 Created: 2016-02-23 Last updated: 2017-11-30Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-5960-2159

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