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Article
Publication date: 1 July 2014

Piotr Tyczyński, Jan Lemańczyk, Robert Ostrowski and Romana Ewa S´liwa

The purpose of this paper is to analyze machinability of CFRP, GFRP, GLARE-type composites in drilling process taking into account their features and properties (the geometric…

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Abstract

Purpose

The purpose of this paper is to analyze machinability of CFRP, GFRP, GLARE-type composites in drilling process taking into account their features and properties (the geometric characteristics, the volume fraction and the mechanical properties of the individual components of the composite). Drilling in non-plan surfaces and slope drilling.

Design/methodology/approach

The tests were carried out in two stages: perpendicular drilling of materials such as GLARE with special drill bits, and drilling of composite structures with non-planar surfaces made of unidirectional carbon fiber prepregs, using the modified special drill. Measurement of cutting forces and torque, stress distribution (photoelastic method) and a visual assessment of defects occurring during drilling allowed to determine the relationship between the type and geometry of the composite drill.

Findings

Identified great effect of kind of composite on the machinability of these materials has substantiated modification of the standard geometry of drills and matching this geometry to specific properties of the various type of composites.

Practical implications

Drilling of assembly holes for aerospace parts.

Originality/value

New type of drill geometry for different type of composite.

Details

Aircraft Engineering and Aerospace Technology: An International Journal, vol. 86 no. 4
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 12 July 2013

Damien Page

The purpose of this paper is to document the coping styles of first tier managers in English further education (FE) colleges, in relation to the most significant stressors and to…

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Abstract

Purpose

The purpose of this paper is to document the coping styles of first tier managers in English further education (FE) colleges, in relation to the most significant stressors and to create an original, grounded scale of coping based on the data.

Design/methodology/approach

This study adopted a qualitative approach to coping strategies and involved semi‐structured interviews with 23 first tier managers in four colleges.

Findings

The study identified 16 distinct coping strategies employed by the first tier managers that ranged from “compliant” strategies, such as increased effort and self‐coaching, to “affective” strategies, such as exercise and tension reduction; and finally, those strategies that were “non‐compliant” such as escape and dissent.

Research limitations/implications

This research presents a tentative coping scale for first tier managers that could potentially inform the design of structured development programmes according to their particular needs.

Originality/value

This is the first coping scale of first tier managers in FE and its findings may have implications for first tier managers in other organisational settings.

Details

Journal of Management Development, vol. 32 no. 7
Type: Research Article
ISSN: 0262-1711

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