Thesis-1979-Mahmoud.pdf (2 MB)
The costing of turned components at the design stage
thesis
posted on 2017-12-21, 12:32 authored by Mohamed A.M. MahmoudA costing system has been evolved for turned components
produced by a variety of machines; the system is based upon a
fundamental cost equation which utilises in the main, the
manufacturing time of the component, together with its material
cost. A technique for predicting the floor to floor time, Ft,
has been established based upon the size and shape of the
component in parameters readily available to the designer. The
generally accepted setting times for various machines have been
corrected to take into account the component complexity. In
estimating the material requirements, allowances have been made for
material wastage, due to schedule or quantity change, scrap losses
and the effect of the operator learning curve on these losses. A
graphical presentation of the floor time equation enables the
designer to rapidly assess variations in Ft, if he chooses to vary
one, or indeed all of the parameters within his control, i.e.
material, finish, size, features, etc., etc. in order to meet a
certain cost target.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Publisher
© M.A.M. MahmoudPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 2.5 Generic (CC BY-NC-ND 2.5) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by-nc-nd/2.5/Publication date
1979Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.Language
- en