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Article
Publication date: 17 June 2021

Igor Gurkov

This paper aims to explore the phenomenon of ribbon-cutting ceremonies for new overseas subsidiaries and demonstrates the possibility of modifying such ceremonies to place…

Abstract

Purpose

This paper aims to explore the phenomenon of ribbon-cutting ceremonies for new overseas subsidiaries and demonstrates the possibility of modifying such ceremonies to place greater emphasis on intra-organizational communications.

Design/methodology/approach

This is a careful study of 200 videos on 73 ribbon-cutting ceremonies in Russia between 2012 and 2018.

Findings

Under the current prevalent design, ribbon-cutting ceremonies mostly entail inter-organizational communication, i.e. communication between foreign investors and representatives of the authorities of the host country. Meanwhile, in addition to the standard ribbon-cutting ceremonies, it is observed that several videos on intra-organizational communication, i.e. pseudoformal meetings between the team from the corporate headquarters and employees of a newly built factory. During such meetings, top corporate executives express the importance of the factory vis-à-vis the future of the whole corporation, state their expectations for the further development of the factory’s production facilities, postulate the desired working atmosphere in the factory and appeal for the commitment and assistance of the employees in safeguarding the future of the investment.

Originality/value

The findings provide a basis for a broader discussion on the role of ribbon-cutting ceremonies as staged large-scale events organized by firms to articulate, highlight, disseminate, rationalize, as well as mobilize internal and external support for their strategy.

Details

International Journal of Organizational Analysis, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1934-8835

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Article
Publication date: 19 April 2013

Emel Kuram, Babur Ozcelik, Bilgin Tolga Simsek and Erhan Demirbas

The purpose of this paper is to investigate the performances of vegetable based cutting fluids by comparing tool life, surface roughness and cutting force during end…

Abstract

Purpose

The purpose of this paper is to investigate the performances of vegetable based cutting fluids by comparing tool life, surface roughness and cutting force during end milling of AISI 304 stainless steel. In the experiments, three different vegetable based cutting fluids developed from sunflower and canola oils (SCF‐II with 8% extreme pressure (EP), CCF‐II without EP and CCF‐II with 8% EP) and a commercial type of semi‐synthetic cutting fluid were used. Cutting fluid was applied to the cutting zone via two nozzles.

Design/methodology/approach

Effects of different cutting speeds (100, 150 and 200 m/min) and different feed rates (0.2, 0.25 and 0.3 mm/rev) on tool life, surface roughness and cutting force in milling of AISI 304 stainless steel were investigated. Depth of cut and step over were kept constant as 0.3 mm and 10 mm at both conditions, respectively.

Findings

Results indicated that CCF‐II with 8% EP cutting fluid showed better performance than the others.

Originality/value

In this study, effect of extreme pressure additive on milling performance was investigated.

Details

Industrial Lubrication and Tribology, vol. 65 no. 3
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 1 September 2006

O.C. Mendes, R.F. Ávila, A.M. Abrão, Pedro Reis and J. Paulo Davim

The knowledge over the performance of cutting fluids when applied under different machining conditions (such as distinct work material and cutting parameters) is critical…

Abstract

Purpose

The knowledge over the performance of cutting fluids when applied under different machining conditions (such as distinct work material and cutting parameters) is critical in order to improve the efficiency of most machining operations. This paper is concerned with the performance of cutting fluids employed under two distinct machining operations involving aluminium alloys: drilling of AA 1050‐O aluminium applying cutting fluid as a mist and turning of AA 6262‐T6 aluminium alloy using cutting fluids (as a flood) with distinct extreme pressure additives (chlorine, sulphur and phosphor).

Design/methodology/approach

This work reports on a experimental study of the performance of cutting fluids when machining aluminium alloys.

Findings

The results indicated an increase in the flow rate of the mist led to lower feed forces but higher torque, power consumption and specific cutting pressure in the drilling operation (AA 1050‐O aluminium). The surface finish was not drastically affected by the cutting fluid flow rate. When turning AA 6162‐T6 aluminium alloy, in general, best results were observed using 10 per cent fluid concentration applied at the tool‐workpiece interface. The cutting fluid containing chlorine as extreme pressure additive produced lower cutting forces and better surface finish at high cutting speed and low feed rate and depth of cut.

Originality/value

The novel element of this paper is the use of minimal lubrication (drilling) and cutting fluids with distinct extreme pressure (turning).

Details

Industrial Lubrication and Tribology, vol. 58 no. 5
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 1 March 2005

R. Ghodsi and F. Sassani

To have all the required components of batches of product orders ready for timely assembly and delivery, the real time wood strip cutting patterns in a major solid wood…

Abstract

Purpose

To have all the required components of batches of product orders ready for timely assembly and delivery, the real time wood strip cutting patterns in a major solid wood furniture manufacturing plant has to be dynamically generated based on both the order priority and the minimum wood waste.

Design/methodology/approach

An adaptive fuzzy ranking method and a recursive function for pattern generation were integrated into an optimization procedure to solve the real time one‐dimensional multiple‐grade cutting stock problem when orders are prioritized.

Findings

The simulation results illustrate that the optimization algorithm produce considerably less waste than the current approach. If implemented in the industry, the saving in raw material could be in the range of 5‐10 percent.

Research limitations/implications

The optimization algorithm is for the cut‐to‐size decisions only with the consideration of the order priorities. The overall scheduling of the production shop floor is not addressed.

Practical implications

The algorithm can be used on the cutting machines as an online patterns generator and cutting optimizer.

Originality/value

There is no literature available for the real time one‐dimensional multiple‐grade cutting stock problem when orders are prioritized. The few commercial optimizers have unknown algorithms with unpredictable waste.

Details

Assembly Automation, vol. 25 no. 1
Type: Research Article
ISSN: 0144-5154

Keywords

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Article
Publication date: 1 November 1959

R.H. Norris and E.J. Lownes

WHEN METALS ARE SHEARED or “cut” a compressive force of high intensity is applied to the metal by the cutting tool. The metal crystals are subjected to this force and the…

Abstract

WHEN METALS ARE SHEARED or “cut” a compressive force of high intensity is applied to the metal by the cutting tool. The metal crystals are subjected to this force and the resulting stresses cause certain crystals to slip or flow in various directions along planes of slippage, the direction of slip normally being along planes of greatest atom density.

Details

Industrial Lubrication and Tribology, vol. 11 no. 11
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 1 August 1998

Rozalija Blekac and Jelka Gersak

The influence of mechanical and physical properties of fabrics on cutting process and the behaviours of fabrics during automatic cutting of a fabrics lay into garment…

Abstract

The influence of mechanical and physical properties of fabrics on cutting process and the behaviours of fabrics during automatic cutting of a fabrics lay into garment pieces is studied. It is shown that the blade forces and the mechanical and physical properties of fabrics, such as elongation strength, bending and shear rigidity have significant influences on cutting of fabrics lay. The velocity of vertical and horizontal components of movements of the knife blade, elastic properties of fibres and the air permeability have significant influence on the quality of cutting and pattern pieces, as well.

Details

International Journal of Clothing Science and Technology, vol. 10 no. 3/4
Type: Research Article
ISSN: 0955-6222

Keywords

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Article
Publication date: 13 June 2016

Alper Uysal

In milling of stainless steel materials, various cutting tool failures such as flank wear, crater wear, cracks, chipping, etc. can be observed because of their work…

Abstract

Purpose

In milling of stainless steel materials, various cutting tool failures such as flank wear, crater wear, cracks, chipping, etc. can be observed because of their work hardening tendency and low thermal conductivity. For this reason, this paper aims to develop some coolants and coatings to reduce these formations. However, further research should be performed to reach the desired level.

Design/methodology/approach

In this study, the initial flank wear rates of uncoated and titanium nitride-coated tungsten carbide cutting tools were investigated during the milling of AISI 430 ferritic stainless steel. The milling experiments were conducted under dry and minimum quantity lubrication (MQL) conditions. Nano graphene reinforced vegetable cutting fluid was prepared and applied by the MQL system. The mixture ratios of nanofluids were selected as 1 and 2 wt.%, and MQL flow rates were adjusted at 20 and 40 ml/h.

Findings

It was observed that MQL milling with nano graphene reinforced cutting fluid has advantages over dry milling and MQL milling with pure cutting fluid in terms of the initial flank wear.

Originality/value

This paper contains new and significant information adequate to justify publication. MQL is a new method for vegetable cutting fluid containing nano graphene particles.

Details

Industrial Lubrication and Tribology, vol. 68 no. 4
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 1 February 1997

Terry D. Alkire

The past five years have seen a significant improvement in the reliability and the acceptance of two‐dimensional abrasive waterjet (AWJ) cutting systems. Across all of the…

Abstract

The past five years have seen a significant improvement in the reliability and the acceptance of two‐dimensional abrasive waterjet (AWJ) cutting systems. Across all of the major industrial countries in Europe, one can now find any number of job shops or custom cutting centres offering AWJ cut parts. Three‐dimensional AWJ cutting systems were first introduced into the aerospace industry. The AWJ machines used to cut aerospace parts were mainly limited to large‐frame, cost‐intensive five‐axes units dedicated to the aerospace industry. Recently, a select few of the well‐established users of two‐dimensional AWJ cutting systems have acquired three‐dimensional AWJ cutting systems. New, lower‐priced systems combined with innovative configuration options, improved programming techniques, advanced automation and accuracy have taken three‐dimensional AWJ to another level. Discusses the recent developments in three‐dimensional AWJ systems.

Details

Industrial Robot: An International Journal, vol. 24 no. 1
Type: Research Article
ISSN: 0143-991X

Keywords

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Article
Publication date: 29 July 2014

Shouxu Wang, Li Feng, Yuanming Chen, Wei He, Zhihua Tao, Shijing Chen and Huan Xu

The purpose of this paper is to form good cutting qualities in glass-epoxy material for opening flexible areas of rigid-flex printed circuit boards (PCB) by ultraviolet…

Abstract

Purpose

The purpose of this paper is to form good cutting qualities in glass-epoxy material for opening flexible areas of rigid-flex printed circuit boards (PCB) by ultraviolet (UV) laser cutting.

Design/methodology/approach

The cut width and cut depth of glass-epoxy materials were both observed to evaluate their cutting qualities. The heat affected zone (HAZ) of the glass-epoxy material was also investigated after UV laser cutting. The relationships between the cut width and the parameters of various factors were analyzed using an orthogonal experimental design.

Findings

The cut width of the glass-epoxy material gradually increased with the increment of the laser power and Z-axis height, while cutting speed and laser frequency had less effect on the cut width. Optimal parameters of the UV laser process for cutting glass-epoxy material were obtained and included a laser power of 6W, a cutting speed of 170 mm/s, a laser frequency of 50 kHz and a Z-axis height of 0.6 mm, resulting in an average cut width of 25 μm and small HAZ.

Originality/value

Flexible areas of rigid-flex PCBs are in good agreement with the cutting qualities of the UV laser. The use of a UV laser process could have important potential for cutting glass-epoxy materials used in the PCB industry.

Details

Circuit World, vol. 40 no. 3
Type: Research Article
ISSN: 0305-6120

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Article
Publication date: 16 October 2018

Dariusz Ozimina, Monika Madej, Joanna Kowalczyk, Ewa Ozimina and Stanislaw Plaza

This study aims to determine the properties of a new non-toxic cutting fluid and compared with cutting fluid based on mineral oil.

Abstract

Purpose

This study aims to determine the properties of a new non-toxic cutting fluid and compared with cutting fluid based on mineral oil.

Design/methodology/approach

The tool wear was measured under dry and wet cutting conditions. The non-toxic cutting fluid was compared with cutting fluid based on mineral oil. The experiments were carried out using CTX 310 ECO numerical control lathe. The wear of the cutting tools was measured by means of stereo zoom microscopy (SX80), while the elements were identified through scanning electron microscopy (JSM 7100F). The workpiece surface texture was studied using a Talysurf CCI Lite non-contact 3D profiler. The contact wetting angle was established with a KSV CAM 100 tester.

Findings

The non-toxic cutting fluid has reached comparable coefficient of friction with a coolant containing mineral oil. The use of the non-toxic cutting fluid with low foaming tendency resulted in lower wear.

Practical implications

Machining processes require that cutting fluids be applied to reduce the tool wear and improve the quality of the workpiece surface. Cutting fluids serve numerous purposes such as they act as coolants and lubricants, remove chips and temporarily prevent corrosion of the product.

Originality/value

The investigations discussed in this paper have contributed to the development of non-toxic and environmentally friendly manufacturing because of the use of cutting fluid containing zinc aspartate and its comparison with commonly used cutting fluid.

Details

Industrial Lubrication and Tribology, vol. 70 no. 9
Type: Research Article
ISSN: 0036-8792

Keywords

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