Advanced Search
MyIDEAS: Login

Developpement D’Un Modèle D’Estimation Des Coûts D’Assemblages Soudés
[Developement of welding cost estimation model based on welding feature concept]

Contents:

Author Info

  • Hachicha, Wafik

Abstract

Estimating the manufacturing cost is a critical task with high importance to industrial firms. The cost estimating can drive bidding strategies, management of resources, production policies and other issues crucial to the economic success of the company. Essentially, cost estimation should be quick and accurate. There are three main approaches towards cost estimation: estimation based on past experience (variant cost estimation), estimation based on explicit cost computations (analytical method) and parametric cost estimation. However, the most accurate cost estimates are made using the analytical approach. Among the many methods for cost estimating are those based on knowledge bases, features, operations, physical relationships and similarity laws. The aim of this study is to estimate different cost for the specific field of arc welding. It deals with assembly modeling welding. To do this, we have proposed a new application of feature: welding feature and preparation feature. This concept is based on the decomposition of the product in features. The proposed model presents a combination of two variants approach cost estimation based on characteristics of product and on manufacturing activity of process: • First, we developed an analytical method in order to estimate the welding time by determining the weight of the weld and this for each feature. Besides, we estimate others consumptions: gas, electrode and electrical power. • Second, we used parametric cost estimation for cost formulation due to deferent “feature cost” which compose the process of welding: Edge preparation (chamfering, bevel machining, grinding etc.), welding. This concept inquires the appropriate choice of the indicator. We have developed a database with Microsoft Access in order to estimate cost welding which use our model. This application, named SOUDABASE, helps in estimating welding time and cost. It will allow a relative novice to understand the effects of welding variables on production costs. Finally, we tested SOUDABASE application with industrial examples and we released a comparative study with DEVISOUD application proposed by CETIM, Senlis France in order to validate our model.

Download Info

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
File URL: http://mpra.ub.uni-muenchen.de/7969/
File Function: original version
Download Restriction: no

Bibliographic Info

Paper provided by University Library of Munich, Germany in its series MPRA Paper with number 7969.

as in new window
Length:
Date of creation: 08 Jul 2004
Date of revision:
Handle: RePEc:pra:mprapa:7969

Contact details of provider:
Postal: Schackstr. 4, D-80539 Munich, Germany
Phone: +49-(0)89-2180-2219
Fax: +49-(0)89-2180-3900
Web page: http://mpra.ub.uni-muenchen.de
More information through EDIRC

Related research

Keywords: Modeling; Assembly; Welding feature; Preparation feature; Cost feature; Cost estimation;

Find related papers by JEL classification:

References

No references listed on IDEAS
You can help add them by filling out this form.

Citations

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:pra:mprapa:7969. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Ekkehart Schlicht).

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.