The Research and Development of Mechanical Product Turning Processing Cost Estimation System

2011 ◽  
Vol 121-126 ◽  
pp. 3612-3616
Author(s):  
Wen Quan Huang ◽  
Kai Shi Li ◽  
Hai Jun Liu
Keyword(s):  
Cost Estimation ◽  
Manufacturing Cost ◽  
Cost Information ◽  
Development Environment ◽  
Improve Design ◽  
Market Competitiveness ◽  
Processing Cost ◽  
Estimation System ◽  
The Cost ◽  
Time Standard

This paper adopts the method labor time standard, in the development environment of VC++, using Access database storage costs data, and the cost results output into Excel, developed mechanical product turning processing manufacturing cost estimation system. Using this system can realize turning processing cost estimation and feedback the cost information of mechanical product turning processing, make a design personnel to understand the cost information, to improve design, reduce the cost, improve the market competitiveness of products

Information Requirements for Cost Estimating in the Automotive Industry

2003 ◽  
Author(s):  
Rajkumar Roy ◽  
Petros Souchoroukov ◽  
Harri S. Koponen
Keyword(s):  
Automotive Industry ◽  
Cost Estimation ◽  
Sources Of Information ◽  
Cost Estimating ◽  
Cost Information ◽  
Information Requirements ◽  
Cost Estimates ◽  
Market Competitiveness ◽  
The Cost ◽  
Product Costs

The automotive companies operate in a very competitive market. Competitiveness requires controlling product costs, and cost estimation is an important activity for this. Cost estimation requires quality information but the conducted research found several issues that hinder this activity, namely a lack of resources and information acquiring and validation difficulties. Data and Information requirements are a major issue in cost estimating. Research in cost estimating mainly focus on improving techniques and methodologies. There is a need to investigate the data and information requirements and corresponding sources of information for cost estimating. These issues have led to the extensive use of expert judgement. Experienced cost estimators use a variety of information resources and cost elements to create a cost estimate, and this causes communication issues. Better information is needed for both creating sound cost estimates and increasing understanding of these created cost estimates. This paper proposes a novel idea, an information infrastructure for automotive cost estimation to address the issue. The constructed Infrastructure provides relevant cost information needed to develop sound and robust cost estimates using a webportal design. It defines in depth the necessary cost information, explains why it is used and gives details where to find it and how to validate it. The research increases understanding of the cost estimation information requirements for the automotive industry.

Integration of friction stir welding into a multi-disciplinary aerospace design framework

2006 ◽  
Vol 110 (1113) ◽  
pp. 759-766 ◽  
Author(s):  
A. H. van der Laan ◽  
R. Curran ◽  
M. J. L. van Tooren ◽  
C. Ritchie
Keyword(s):  
Friction Stir Welding ◽  
Cost Estimation ◽  
Multidisciplinary Design ◽  
Manufacturing Cost ◽  
Automated Manufacturing ◽  
Estimation Model ◽  
Friction Stir ◽  
Manufacturing Methods ◽  
Cost Estimation Model ◽  
The Cost

Abstract Multidisciplinary design and innovative highly automated manufacturing methods are increasingly important to today’s aircraft industry: multidis-ciplinary design because it reduces lead-time and results in a better design, and automated manufacturing methods because they are more capable and reduce manufacturing cost. In this paper a cost estimation model is presented that integrates the manufacturing cost of friction stir welded connections within a multidisciplinary design decision tool. Due to the fact that friction stir welding is a new manufacturing method, the cost estimation model is based on the actual process physics, meaning what the process looks like in terms of processing speeds and characteristics. As an integral part of a multidisciplinary design framework, the developed cost estimation model contributes to a design support tool that assesses not only manufacturing but also structural and aerodynamic issues. It is shown that the cost model developed can be integrated into this more holistic design process support architecture. The predicted costs are accurate to the historical data and allow tradeoff of manufacturing and economic considerations within the context of the multidisciplinary design tool. The tradeoff capability is highlighted through a presented case study that compares the friction stir welding process as an alternative solution to more tradition riveting. Most importantly, this results in a quantitative tradeoff between two processes that shows the manufacturing cycle time of friction stir welding to be reduced by 60% and the recurring assembly cost by 20%.

Optimal Tolerance and Clearance Allocation in Mechanisms to Minimize Manufacturing Cost

1998 ◽  
Author(s):  
Arunava Biswas ◽  
Gary L. Kinzel
Keyword(s):  
Life Cycle Cost ◽  
Optimal Allocation ◽  
Optimization Procedure ◽  
Manufacturing Cost ◽  
Cost Information ◽  
Design Variables ◽  
Conflicting Objectives ◽  
Early Design Stages ◽  
Manufacturing Tolerances ◽  
The Cost

Abstract A procedure has been developed for the optimal allocation of tolerances and clearances in complex assemblies. The objective is to minimize manufacturing costs and sensitivity to variations in the design variables. The assemblies considered are single loop planar and spatial mechanisms including those with analytically defined surface contact joints. The procedure, to be used in early design stages, allows the incorporation of manufacturing tolerances and clearances based on actual manufacturing process and cost information. This allows the designer’s intent and the manufacturing and process capabilities to be tied together in the development of the product or assembly. The allocation of tolerances is done with the idea of minimizing the overall “life cycle cost” of the assembly, which not only involves the actual manufacturing cost but also the cost involved in maintaining the design variables within tolerable values. A multicriteria optimization procedure is used to handle the two aforementioned conflicting objectives. The kinematic analysis of mechanisms with clearance joints is performed using an iterative procedure along with an equivalent “clearance link” model.

scholarly journals Automatic Estimation System of Building Frames Integrated with Structural Design Information (AutoES)

2015 ◽  
pp. 224-231
Author(s):  
Chaeyeon Lim ◽  
Donghoon Lee ◽  
Won-Kee Hong ◽  
Sunkuk Kim
Keyword(s):  
Cost Estimation ◽  
Structural Design ◽  
Construction Costs ◽  
Building Frames ◽  
Design Information ◽  
Automatic Estimation ◽  
Project Participants ◽  
Estimation System ◽  
The Cost ◽  
Structural Engineers

The project participants, including clients, architects, structural engineers and contractors would want to know accurate construction costs as soon as the design is completed. However, it may take at least several weeks for the cost estimation after the structural design and drawings are completed, depending on the project scale or size. Quantity surveying in manual is time-consuming and taken by lots of effort. Even if computerized software is used, it takes a lot of time to insert structural design information to the software. In addition, the estimated cost may result in inaccurate quantity owing to the drawing errors or quantity surveyors’ mistake, as well as it is not an exact quantity for actual construction, exposing numerous problems at the construction phase. For instance, to accurately estimate the quantity of rebar, some additional effort is required such as preparing the bar bending schedule. Such problems occur by the communication gap and viewpoint difference among project participants who perform structural designs, draft the structural drawings and estimate quantity. But, if structural design information can be automatically received for quantity estimation, an exact quantity can be estimated without omission or errors. To solve those problems, this study proposes automatic estimation System of building frames integrated with structural design information (AutoES). Using the algorithms provided by AutoES, the task of cost estimation can be accomplished with an exact bill of quantity including a bar bending schedule without errors, mistakes, or omission within a week, which used to take at least 4 weeks.

scholarly journals Economic Viability of Metallic Sodium-Cooled Fast Reactor Fuel in Korea

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
S. K. Kim ◽  
W. I. Ko ◽  
Yoon Hee Lee
Keyword(s):  
Nuclear Fuel ◽  
Cost Estimation ◽  
Fuel Cycle ◽  
Unit Cost ◽  
Economic Feasibility ◽  
Manufacturing Cost ◽  
Metallic Sodium ◽  
Disposal Option ◽  
Break Even Point ◽  
The Cost

This paper evaluates whether SFR metallic nuclear fuel can be economical. To make this determination, the cost of SFCF (SFR fuel cycle facilities) was estimated, and the break-even point of the manufacturing cost of SFR metallic nuclear fuel for direct disposal option was then calculated. As a result of the cost estimation, the levelized unit cost (LUC) for SFCF was calculated to be 5,311 $/kgHM, and the break-even point was calculated to be $5,267/kgHM. Therefore, the cost difference between LUC and the break-even point is not only small but is also within the relevant range of the uncertainty level of Class 3 in accordance with a generic cost estimate classification matrix of AACE (the Association for the Advancement of Cost Engineering). This means it is very difficult to judge the economical feasibility of SFR metallic nuclear fuel because as of today there are no commercial facilities in Korea or the world. The economic feasibility of SFR metallic nuclear fuel, however, will be enhanced if the mass production of SFCF becomes possible in the future.

A COST ESTIMATION METHOD BASED ON THE SECONDARY DEVELOPMENT OF SOLIDWORKS

2011 ◽  
Vol 10 (01) ◽  
pp. 85-92 ◽  
Author(s):  
XIN ZHANG ◽  
JIANWU ZHANG
Keyword(s):  
Cost Estimation ◽  
Estimation Method ◽  
Secondary Development ◽  
Manufacturing Cost ◽  
Product Cost ◽  
Strategic Process ◽  
Development Cycle ◽  
Estimation System ◽  
Product Costs ◽  
Competitive Nature

Due to the highly competitive nature of businesses today, cost estimation forms an important strategic process in making decisions about design and development of new products. It is advantageous to be able to estimate the product costs early in the product development cycle. In this paper, products' cost structure based on the feature is proposed by analyzing product cost, and the calculation methods of manufacturing cost is introduced. By means of parametric designing capability, functional frame of cost estimation system is built on the basis of the secondary development technique of SolidWorks. Taking certain type of hydraulic support as an example, the software prototype of cost estimation is developed. The result of cost estimation accords with actual product cost prove the feasibility of cost estimation method based on the secondary development of SolidWorks.

scholarly journals An Accuracy Investigation of Product Cost Estimation in Automotive Die Manufacturing

2017 ◽  
Vol 8 (7) ◽  
pp. 1 ◽  
Author(s):  
Julia Bendul ◽  
Vasile Apostu
Keyword(s):  
Cost Estimation ◽  
Cost Reduction ◽  
Real Data ◽  
Estimation Methods ◽  
Design Phase ◽  
Cost Information ◽  
Capacity Decisions ◽  
Accuracy Level ◽  
Application Fields ◽  
The Cost

Automotive die manufacturers face the constant challenge of producing qualitative products while having to reduce costs. However, cost reduction measures are rather insignificant during the actual manufacturing process as the most important cost-impacting decisions are taken during the design phase. Cost estimation methods attempt to determine the production cost already in the design phase; the cost can be broken down and therefore the plan times of manufacturing processes can be pre-calculated, thus enabling early capacity decisions. Many researchers have been focusing for decades on developing efficient cost estimation methods. Yet their scarce access to cost information meant that most of the developed methods could not be evaluated with real data and thus their implementation in practice being challenged. This paper reviews and classifies cost estimation methods and investigates the accuracy of the estimate based onpractical application in 190 cases. The overall aim is to determine the accuracy level of the studied methods in practice and therefore identify their application fields.

scholarly journals The Cost of Chronic Wounds in Argentina: An Estimation of the Burden in a Public Hospital

2019 ◽  
Author(s):  
Romina Chavez-Jara ◽  
Nicolas Cerusico ◽  
Maria Lazarte ◽  
Carla Cabrera ◽  
Andrea Herrera Bruno ◽  
...  
Keyword(s):  
Cost Estimation ◽  
Laboratory Tests ◽  
Public Hospital ◽  
Chronic Wounds ◽  
Cost Information ◽  
Male And Female ◽  
New Public Health ◽  
The Mean ◽  
The Individual ◽  
The Cost

Background: Chronic lower limb ulcers (CLLU) have an important burden to the individual and the healthcare system.  However, there is a lack of information about the cost of CLLU in Argentina.Objective: To determinate the number and cost of consultation and hospitalization associated to CLLU in a public hospital in Argentina. Methods: Retrospective observational study. Cost estimation were calculated based on days of stay, treatments and laboratory tests in a inpatient population and the number of consultations, treatments and laboratory tests, in a outpatient population. Results: In 2013 and 2014, the overall number of consultation with ICD-10 codes was 7,224 and the number of inpatient was 359. The mean age for male and female outpatient consultations was 59.53(±13.06) years and 59.04(±10.93), respectively. For CLLU male and female inpatient, the mean age was 63.9(±10.4) years and 54.5(±8.6) years, respectively. The length of stay was 22.88 days. There was a mean of 0.41 surgeries per patient where 25% were amputations. The mean annual cost in a single public hospital was US$4,053.65 per inpatient and US$3,589.24 per outpatient. Conclusion: Cost information allows new public health policies to reduce socioeconomic burden due to CLLU.

The Application and Research for Estimation Method of Turning Cost

2011 ◽  
Vol 189-193 ◽  
pp. 716-719
Author(s):  
Kai Shi Li ◽  
Wen Quan Huang ◽  
Hai Jun Liu
Keyword(s):  
Estimation Method ◽  
Cost Information ◽  
Initial Design ◽  
Market Competitiveness ◽  
The Cost

The paper introduces a estimation method of turning cost applied to various kinds of lathe. The method can estimate the lathe machining cost of product in initial design and feedback the cost information for the designers improvement design and improve the market competitiveness of product.

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