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Modeling the cost of varying surface finish demands during longitudinal turning operations

Schultheiss, Fredrik LU ; Hägglund, Sören and Ståhl, Jan-Eric LU (2016) In International Journal of Advanced Manufacturing Technology 84(5). p.1103-1114
Abstract
Tolerances, including geometry, dimension, and

surface roughness, are an important part of production where

the desire to manufacture quality products have to be weighed

against the increase of manufacturing costs. The desired tolerance

will influence the choice of both manufacturing method

and machine tool. Given that machining is an adequate

production method, variation of the required tolerances will

imply a variation of the part cost which needs to be taken into

account during production planning. Thus, the term “tolerance

cost” is introduced. The paper presents a model for evaluating

the tolerance cost in respect to the surface roughness... (More)
Tolerances, including geometry, dimension, and

surface roughness, are an important part of production where

the desire to manufacture quality products have to be weighed

against the increase of manufacturing costs. The desired tolerance

will influence the choice of both manufacturing method

and machine tool. Given that machining is an adequate

production method, variation of the required tolerances will

imply a variation of the part cost which needs to be taken into

account during production planning. Thus, the term “tolerance

cost” is introduced. The paper presents a model for evaluating

the tolerance cost in respect to the surface roughness during

longitudinal turning operations, enabling a better comparison

between different production alternatives. Through knowledge

of the required surface roughness, it is possible to estimate

appropriate cutting conditions. Knowledge of the cutting

conditions and the part geometry then makes it possible to

calculate the cycle time, information which in turn may be

used for calculating the corresponding part cost. Through

using experimental data, it is proven that the required surface

roughness has a significant influence on the attained

manufacturing cost. For instance, while longitudinally turning

AISI 4140, it was shown that an improvement of the surface

roughness from Ra=3.2 μm to Ra=1.6 μm will entail an increase

of the part cost by roughly 20 %. Similarly, a decrease

of the required surface quality (larger Ra value) will imply a

significantly reduced part cost. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Part cost, Surface roughness, Machining, Turning
in
International Journal of Advanced Manufacturing Technology
volume
84
issue
5
pages
11 pages
publisher
Springer
external identifiers
  • Scopus:84941367056
ISSN
0268-3768
DOI
10.1007/s00170-015-7750-6
language
English
LU publication?
yes
id
0cbd11a6-612f-4db7-9b8f-2ac3719af078 (old id 7907728)
date added to LUP
2015-10-14 08:45:30
date last changed
2016-10-13 04:50:16
@misc{0cbd11a6-612f-4db7-9b8f-2ac3719af078,
  abstract     = {Tolerances, including geometry, dimension, and<br/><br>
surface roughness, are an important part of production where<br/><br>
the desire to manufacture quality products have to be weighed<br/><br>
against the increase of manufacturing costs. The desired tolerance<br/><br>
will influence the choice of both manufacturing method<br/><br>
and machine tool. Given that machining is an adequate<br/><br>
production method, variation of the required tolerances will<br/><br>
imply a variation of the part cost which needs to be taken into<br/><br>
account during production planning. Thus, the term “tolerance<br/><br>
cost” is introduced. The paper presents a model for evaluating<br/><br>
the tolerance cost in respect to the surface roughness during<br/><br>
longitudinal turning operations, enabling a better comparison<br/><br>
between different production alternatives. Through knowledge<br/><br>
of the required surface roughness, it is possible to estimate<br/><br>
appropriate cutting conditions. Knowledge of the cutting<br/><br>
conditions and the part geometry then makes it possible to<br/><br>
calculate the cycle time, information which in turn may be<br/><br>
used for calculating the corresponding part cost. Through<br/><br>
using experimental data, it is proven that the required surface<br/><br>
roughness has a significant influence on the attained<br/><br>
manufacturing cost. For instance, while longitudinally turning<br/><br>
AISI 4140, it was shown that an improvement of the surface<br/><br>
roughness from Ra=3.2 μm to Ra=1.6 μm will entail an increase<br/><br>
of the part cost by roughly 20 %. Similarly, a decrease<br/><br>
of the required surface quality (larger Ra value) will imply a<br/><br>
significantly reduced part cost.},
  author       = {Schultheiss, Fredrik and Hägglund, Sören and Ståhl, Jan-Eric},
  issn         = {0268-3768},
  keyword      = {Part cost,Surface roughness,Machining,Turning},
  language     = {eng},
  number       = {5},
  pages        = {1103--1114},
  publisher    = {ARRAY(0x8d1ce28)},
  series       = {International Journal of Advanced Manufacturing Technology},
  title        = {Modeling the cost of varying surface finish demands during longitudinal turning operations},
  url          = {http://dx.doi.org/10.1007/s00170-015-7750-6},
  volume       = {84},
  year         = {2016},
}