Abstract
This article presents economic models for a new hybrid method where additive manufacturing (AM) and subtractive methods (SMs) are integrated through composite process planning. Although AM and SM offer several unique advantages, there are technological limitations such as tolerance and surface finish requirements; tooling and fixturing, etc. that cannot be met by a single type of manufacturing. The intent of this article is not to show a new manufacturing method, but rather to provide economic context to additive and subtractive methods as the best practice provides, and look at the corresponding economics of each of those methods as a function of production batch size, machinability, cost of the material, part geometry and tolerance requirements. Basic models of fixed and variable costs associated with additive, subtractive and hybrid methods to produce parts are also presented. An experimental design is used to study the influence of production volume, material and operating cost, batch size, machinability of the material and impact of reducing AM processing time. A composite response model for the unit cost is computed for the various levels associated with such engineering requirements. The developed models provide insight into how these variables affect the costs associated with engineering a mechanical product that will be produced using AM and SM methods. From the results, it appears that batch size, AM processing time and AM processing cost were the major cost factors. It was shown that the cost of producing near-net shape through SM and AM was the decision criteria; which will be critical for tough-to-machine alloys and at multi-batch size.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 473-488 |
| Number of pages | 16 |
| Journal | International Journal of Computer Integrated Manufacturing |
| Volume | 29 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 3 2016 |
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All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Mechanical Engineering
- Computer Science Applications
- Electrical and Electronic Engineering
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Additive manufacturing-integrated hybrid manufacturing and subtractive processes : Economic model and analysis. / Manogharan, Guhaprasanna; Wysk, Richard A.; Harrysson, Ola L.A.
In: International Journal of Computer Integrated Manufacturing, Vol. 29, No. 5, 03.05.2016, p. 473-488.Research output: Contribution to journal › Article
TY - JOUR
T1 - Additive manufacturing-integrated hybrid manufacturing and subtractive processes
T2 - Economic model and analysis
AU - Manogharan, Guhaprasanna
AU - Wysk, Richard A.
AU - Harrysson, Ola L.A.
PY - 2016/5/3
Y1 - 2016/5/3
N2 - This article presents economic models for a new hybrid method where additive manufacturing (AM) and subtractive methods (SMs) are integrated through composite process planning. Although AM and SM offer several unique advantages, there are technological limitations such as tolerance and surface finish requirements; tooling and fixturing, etc. that cannot be met by a single type of manufacturing. The intent of this article is not to show a new manufacturing method, but rather to provide economic context to additive and subtractive methods as the best practice provides, and look at the corresponding economics of each of those methods as a function of production batch size, machinability, cost of the material, part geometry and tolerance requirements. Basic models of fixed and variable costs associated with additive, subtractive and hybrid methods to produce parts are also presented. An experimental design is used to study the influence of production volume, material and operating cost, batch size, machinability of the material and impact of reducing AM processing time. A composite response model for the unit cost is computed for the various levels associated with such engineering requirements. The developed models provide insight into how these variables affect the costs associated with engineering a mechanical product that will be produced using AM and SM methods. From the results, it appears that batch size, AM processing time and AM processing cost were the major cost factors. It was shown that the cost of producing near-net shape through SM and AM was the decision criteria; which will be critical for tough-to-machine alloys and at multi-batch size.
AB - This article presents economic models for a new hybrid method where additive manufacturing (AM) and subtractive methods (SMs) are integrated through composite process planning. Although AM and SM offer several unique advantages, there are technological limitations such as tolerance and surface finish requirements; tooling and fixturing, etc. that cannot be met by a single type of manufacturing. The intent of this article is not to show a new manufacturing method, but rather to provide economic context to additive and subtractive methods as the best practice provides, and look at the corresponding economics of each of those methods as a function of production batch size, machinability, cost of the material, part geometry and tolerance requirements. Basic models of fixed and variable costs associated with additive, subtractive and hybrid methods to produce parts are also presented. An experimental design is used to study the influence of production volume, material and operating cost, batch size, machinability of the material and impact of reducing AM processing time. A composite response model for the unit cost is computed for the various levels associated with such engineering requirements. The developed models provide insight into how these variables affect the costs associated with engineering a mechanical product that will be produced using AM and SM methods. From the results, it appears that batch size, AM processing time and AM processing cost were the major cost factors. It was shown that the cost of producing near-net shape through SM and AM was the decision criteria; which will be critical for tough-to-machine alloys and at multi-batch size.
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UR - http://www.scopus.com/inward/citedby.url?scp=84960249693&partnerID=8YFLogxK
U2 - 10.1080/0951192X.2015.1067920
DO - 10.1080/0951192X.2015.1067920
M3 - Article
VL - 29
SP - 473
EP - 488
JO - International Journal of Computer Integrated Manufacturing
JF - International Journal of Computer Integrated Manufacturing
SN - 0951-192X
IS - 5
ER -