Generative Fertigung von Verdichterschaufeln einer Blisk*/Additive manufacturing of compressor blades for blisk – Wire-based laser deposition welding for resource efficient production

2015 ◽  
Vol 105 (06) ◽  
pp. 410-414
Author(s):  
N. Klingbeil ◽  
M. Schulz
Keyword(s):  
Additive Manufacturing ◽  
Cost Reduction ◽  
Laser Deposition ◽  
Efficient Production ◽  
Significant Cost ◽  
Compressor Blades ◽  
Metallographic Examination ◽  
Manufacturing Technique ◽  
Significant Cost Reduction ◽  
Laser Deposition Welding

Generative Fertigungsverfahren erlauben komplexe, individualisierte und anwendungsgerechte Geometrien. Mit Technologien wie dem drahtbasierten Laserauftragschweißen ist es darüber hinaus möglich, ressourceneffizient zu fertigen. So können etwa durch das Auftragen von Schichten auf einen Grundkörper Rohkonturen von Verdichterschaufeln im Turbomaschinenbau hergestellt werden. Dies ersetzt, im Vergleich zur herkömmlichen abtragenden Fertigung, den Schruppprozess und gestattet eine signifikante Kosteneinsparung. Dieser Ansatz wird hier im Rahmen der Fertigung und metallographischen Untersuchung eines Demonstrators beschrieben.   Additive manufacturing allows for complex, individualized and customized geometries. With technologies such as wire-based laser deposition welding, it is also possible to make production more resource-efficient. For instance, this technology helps to produce rough geometries of compressor blades for turbo machinery by depositing layers on a substrate. It substitutes conventional roughing strategies by milling and enables a significant cost reduction. This paper describes the new manufacturing technique in the context of metallographic examination using a demonstrator.

scholarly journals Isothermal Roll Forging of Compressor Blades

1980 ◽  
Author(s):  
A. G. Metcalfe ◽  
F. K. Rose ◽  
R. A. Gagne
Keyword(s):  
Manufacturing Process ◽  
Cost Reduction ◽  
Compressor Blade ◽  
Resistance Heating ◽  
Significant Cost ◽  
Compressor Blades ◽  
Technology Program ◽  
Electrical Resistance Heating ◽  
Significant Cost Reduction ◽  
Gas Turbine Compressor

Isothermal roll forging is being applied to the manufacture of gas turbine compressor blades. The process can produce a compressor blade to net section in a single roll forge pass from simple barstock using force feed to gather the metal for the root section. Heating is performed with simultaneous electrical resistance heating of precision molybdenum alloy dies and the blade to a set forging temperature. Good surfaces are produced together with thin flash thereby minimizing final operations for clean-up and inspection. A manufacturing process has been selected and demonstrated under the U. S. Army’s Manufacturing Methods and Technology Program. Projected costs show potential for significant cost reduction. Establishment of this manufacturing process is in progress.

LOW COST FLOATING PRODUCTION FACILITY CONCEPTS FORTROPICAL WATERS

2000 ◽  
Vol 40 (1) ◽  
pp. 481
Author(s):  
L.C. Rathie ◽  
G.F. Hogan ◽  
M.J. Paton
Keyword(s):  
Cost Reduction ◽  
Low Cost ◽  
Effective Means ◽  
Production Facility ◽  
Significant Cost ◽  
Full Field ◽  
Field Development ◽  
Significant Cost Reduction ◽  
Boundary Limits ◽  
Area Development

A number of floating production facility concepts can be readily applied to the development of small and marginal oilfields in moderately deep tropical waters. These concepts can be used to extend the lives of existing mature fields. They can be deployed for a significant cost reduction compared with a conventional full field development provided that boundary limits for application of the concepts are not exceeded.Simple, standardised, reliable and proven equipment should be utilised that may be deployed in innovative ways. Wherever possible, existing equipment should be used and rented where this is economical.Marginal field projects should be managed and operated by small organisations competent in these activities to minimise overheads and maximise flexibility.An inter-field transfer approach (Ocean Truck) offers many options for developing a number of such projects as part of an area development strategy.Cooperation between operators, both as partners in a particular project and in different projects where the same facilities can be used sequentially or in parallel, can be an effective means to control costs and ensure that small oil accumulations are developed.

Collapsibility Studies of MJM Acrylate Patterns for Investment Casting

2013 ◽  
Vol 330 ◽  
pp. 839-842
Author(s):  
O.M.F. Marwah ◽  
S. Sharif ◽  
M. Ibrahim ◽  
M.H. Idris
Keyword(s):  
Investment Casting ◽  
Cost Reduction ◽  
Lead Time ◽  
Casting Process ◽  
Ash Content ◽  
Ceramic Mold ◽  
Significant Cost ◽  
Volume Production ◽  
Materials Used ◽  
Significant Cost Reduction

Direct rapid investment casting (IC) is among the favorable and economical casting process due to its flexibility in fabricating any geometrical part features within a shorter lead time. Polymer based materials used in rapid prototyping (RP) technologies are exhibiting significant cost reduction for low volume production and are potentially replacing conventional wax materials as sacrificial patterns in IC process. This paper reports on the collapsibility characteristics of acrylate patterns during the burnout process for IC molds. The acrylate based patterns were fabricated by a Multijet Modelling (MJM) process with hollow internal structure. The MJM patterns were then Slurry procedure were introduced for producing toughest ceramic mould to prevent cracking occurrence. Results showed that the acrylate patterns start to decomposed gradually from the ceramic mold at 350°C and at 600°C, a total clean burnout without any residues and ash content was attained. This study shows that acrylate patterns built from RP technologies are suitable for fabricating ceramic molds and are highly potential in substituting conventional wax for IC process.

scholarly journals Direct Isomaltulose Synthesis From Beet Molasses by Immobilized Sucrose Isomerase

2021 ◽  
Vol 9 ◽  
Author(s):  
Qin-Qing Wang ◽  
Ming Yang ◽  
Jian-Hua Hao ◽  
Zai-Chao Ma
Keyword(s):  
Cost Reduction ◽  
Low Cost ◽  
High Concentration ◽  
Significant Cost ◽  
Beet Molasses ◽  
Repeated Batch ◽  
Significant Cost Reduction ◽  
First Time ◽  
Repeated Batch Reaction ◽  
Sucrose Isomerase

Isomaltulose is becoming a focus as a functional sweetener for sucrose substitutes; however, isomaltulose production using sucrose as the substrate is not economical. Low-cost feedstocks are needed for their production. In this study, beet molasses (BM) was introduced as the substrate to produce isomaltulose for the first time. Immobilized sucrose isomerase (SIase) was proved as the most efficient biocatalyst for isomaltulose synthesis from sulfuric acid (H2SO4) pretreated BM followed by centrifugation for the removal of insoluble matters and reducing viscosity. The effect of different factors on isomaltulose production is investigated. The isomaltulose still achieved a high concentration of 446.4 ± 5.5 g/L (purity of 85.8%) with a yield of 0.94 ± 0.02 g/g under the best conditions (800 g/L pretreated BM, 15 U immobilized SIase/g dosage, 40°C, pH of 5.5, and 10 h) in the eighth batch. Immobilized SIase used in repeated batch reaction showed good reusability to convert pretreated BM into isomaltulose since the sucrose conversion rate remained 97.5% in the same batch and even above 94% after 11 batches. Significant cost reduction of feedstock costs was also confirmed by economic analysis. The findings indicated that this two-step process to produce isomaltulose using low-cost BM and immobilized SIase is feasible. This process has the potential to be effective and promising for industrial production and application of isomaltulose as a functional sweetener for sucrose substitute.

scholarly journals Evaluation Method and Collaborative Study of Sustainable Additive-Manufacturing

2021 ◽  
Author(s):  
Haishang Wu
Keyword(s):  
Additive Manufacturing ◽  
Cost Reduction ◽  
Manufacturing Industry ◽  
Evaluation Method ◽  
Dominant Role ◽  
Sustainable Manufacturing ◽  
Collaborative Study ◽  
Divide And Conquer ◽  
Cost Modeling ◽  
Efficient Production

It has been commonly recognized that additive manufacturing (AM) enables cost-effective and efficient production towards sustainability. A rigorous evaluation method is required to further investigate the measurement method and efficiency before AM can be well-positioned in sustainable manufacturing and become the industry mainstream. Cost reduction plays key role in manufacturing industry. Compared to conventional manufacturing (CM), cost of AM is volume independent. In contrary, CM production requires a certain volume to share initial tooling cost to achieve cost reduction. This constraint limits CM from service on demand, and leave ambiguity behind. Invisibility of AM advantage in cost factors blocks AM technologies from appropriate process and affects its applications. The major issues AM encountering are the scaling, speed and size of products. Enhancement in scaling threshold and cost modeling are the novelty of this study and a breakthrough of AM issues. Through this study, generic equations are derived by using Convergence Effect and Buy-to-Fly (BTF) ratio. The Divide-and-Conquer approach further supports scaling factors and dependencies of conventional manufacturing (CM) cost modeling as well as AM methods. Consequently, appropriate AM technologies and CM convergence threshold can enhance standardization, decision support, and pre-pilot of AM society through this rigorous benchmarking. Advantages of AM are identified, and a collaboration pattern is proposed to connect large enterprise (LE), SME, and home-based-business (HBB) into an AM society. Through this society, advantages of AM can be fully utilized, scaling and speed issues can be resolved, and AM’s dominant role in sustainable manufacturing becomes feasible.

Holistic Approaches in Achieving Best in Class BIC Detailed Well Design and Operation Execution — The New Norm

2021 ◽  
Author(s):  
Muhammad Hatta Mhd Yusof ◽  
M Zulfarid Khalid ◽  
Rahimah A. Halim ◽  
Nurfaridah Ahmad Fauzi ◽  
Ahgheelan Sella Thurai ◽  
...  
Keyword(s):  
Engineering Design ◽  
Cost Reduction ◽  
Significant Cost ◽  
Technical Standards ◽  
Holistic Approaches ◽  
Full Compliance ◽  
Well Design ◽  
Construction Operation ◽  
Significant Cost Reduction

Abstract This paper will discuss the case study of two (2) projects in Malaysia that were stretched-to-limit and optimized ‘on-paper’ all the wells’ related engineering design and construction, operation activities pre and during drilling campaign as well as logistic arrangement, which led to significant cost reduction in wells and thus improving the overall project economics. This significant savings achieved with full compliance to technical standards as well as with the betterment to improve HSE during offshore execution.

scholarly journals Valutazione clinica e metabolica dell’impiego dell’insulina Lispro in pazienti con diabete mellito scompensato

2005 ◽  
Vol 6 (4) ◽  
pp. 397-400
Author(s):  
Antonio Uneddu ◽  
Tito Antonio Paolini
Keyword(s):  
Cost Saving ◽  
Continuous Infusion ◽  
Preliminary Data ◽  
Cost Reduction ◽  
Insulin Analogue ◽  
Standard Of Care ◽  
Significant Cost ◽  
Diabete Mellito ◽  
Preliminary Results ◽  
Significant Cost Reduction

The aim of the present work is to report preliminary results about the administration of an insulin analogue, LisPro, to treat diabetic chetoacidosis. This new procedure, in respect to insulin continuous infusion, allow significant cost reduction in terms of medical and nurses time dedicated to the patient and hospitalization length. In our experience, LisPro treatment compared to the standard of care, has allowed hospital time reduction of 2,1 days per patient. This can be translated in cost saving of about 700,00 euro per case. These preliminary data, replicating the results coming from published international experiences, have to be confirmed in our country through the implementation of more representative studies

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