scholarly journals Costs Analysis of Iron Casts Manufacturing

2012 ◽  
Vol 12 (2) ◽  
pp. 45-48 ◽  
Author(s):  
S. Kukla
Keyword(s):  
Added Value ◽  
Manufacturing Processes ◽  
Production Flow ◽  
Pareto Analysis ◽  
Costs Analysis ◽  
Constant Improvement ◽  
Plant Transport

Costs Analysis of Iron Casts Manufacturing The article presents the issues of costs analysis of iron casts manufacturing using automated foundry lines. Particular attention was paid to departmental costs, conversion costs and costs of in-plant transport. After the Pareto analysis had been carried out, it was possible to set the model area of the process and focus on improving activities related to finishing of a chosen group of casts. In order to eliminate losses, the activities realised in this domain were divided into activities with added value, activities with partially added value and activities without added value. To streamline the production flow, it was proposed to change the location of workstations related to grinding, control and machining of casts. Within the process of constant improvement of manufacturing processes, the aspect of work ergonomics at a workstation was taken into account. As a result of the undertaken actions, some activities without added value were eliminated, efficiency was increased and prime costs of manufacturing casts with regard to finishing treatment were lowered.

An Efficient Approach for Uncertain Event Detection in RFID Complex Event Processing

2021 ◽  
Vol 5 (4) ◽  
pp. 438
Author(s):  
Siti Salwani Binti Yaacob ◽  
Hairulnizam Bin Mahdin ◽  
Mohammed Saeed Jawad ◽  
Nayef Abdulwahab Mohammed Alduais ◽  
Akhilesh Kumar Sharma ◽  
...  
Keyword(s):  
Processing Time ◽  
Detection Algorithm ◽  
Manufacturing Processes ◽  
Memory Consumption ◽  
Production Flow ◽  
Manufacturing Environment ◽  
Thread Pool ◽  
Missing Items ◽  
Defensive Measures ◽  
Current Detection

The globalization of manufacturing has increased the risk of counterfeiting as the demand grows, the production flow increases, and the availability expands. The intensifying counterfeit issues causing a worriment to companies and putting lives at risk. Companies have ploughed a large amount of money into defensive measures, but their efforts have not slowed counterfeiters. In such complex manufacturing processes, decision-making and real-time reactions to uncertain situations throughout the production process are one way to exploit the challenges. Detecting uncertain conditions such as counterfeit and missing items in the manufacturing environment requires a specialized set of technologies to deal with a flow of continuously created data. In this paper, we propose an uncertain detection algorithm (UDA), an approach to detect uncertain events such as counterfeit and missing items in the RFID distributed system for a manufacturing environment. The proposed method is based on the hashing and thread pool technique to solve high memory consumption, long processing time and low event throughput in the current detection approaches. The experimental results show that the execution time of the proposed method is averagely reduced 22% in different tests, and our proposed method has better performance in processing time based on RFID event streams.

scholarly journals Logistics of Materials Flow in an Iron Foundry

2013 ◽  
Vol 13 (3) ◽  
pp. 55-58
Author(s):  
S. Kukla
Keyword(s):  
Added Value ◽  
Pareto Analysis ◽  
Labour Intensity ◽  
Iron Foundry ◽  
Materials Flow

Abstract The article presents issues related to creating and realizing added value by logistic processes and processing in a casting enterprise. It discusses possibilities of improving systems of casts production by evaluating labour intensity of casts manufacture and analyzing manufacturing prime costs. Operations with added value, processes indirectly creating added value and operations without added value have been specified. The problem was presented on the example of materials flow design in a foundry, where casts are manufactured in expendable moulds and using automated foundry lines. On the basis of the Pareto analysis, a group of casts was specified whose manufacture significantly influences the functioning of the whole enterprise. Finishing treatment operations have been particularly underlined, as they are performed away from the line and are among the most labour-consuming processes during casts production.

scholarly journals Laser Microdrilling of Slate Tiles

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 398 ◽  
Author(s):  
Joaquín Penide ◽  
Antonio Riveiro ◽  
Ramón Soto ◽  
Mohamed Boutinguiza ◽  
Felipe Arias-Gonzalez ◽  
...  
Keyword(s):  
Co2 Laser ◽  
Processing Parameters ◽  
Added Value ◽  
Lead Times ◽  
Manufacturing Processes ◽  
Hole Quality ◽  
Natural Rock ◽  
Increase Productivity ◽  
New Processing ◽  
Conventional Drilling

Slate is a natural rock usually used in roofs, façades, and for tiling. In spite of this broad use, the production process of slate tiles requires substantial improvements. An important quantity of slate from the quarry is wasted during the manufacturing of the final product. Furthermore, processes are not automatized and the production lead times can be considerably shortened. Therefore, new processing methods to increase productivity, reduce costs and to provide added value to the final slate product are required. Drilling is an important part of these manufacturing processes. Conventional drilling processes usually cause the breaking of the slate tiles; then, even a higher quantity of material is wasted. To overcome these problems, lasers emerge as a feasible tool to produce holes in this material, since mechanical stresses are not induced on the workpiece. In this work, we have studied the CO2 laser microdrilling of slate tiles. We used a Design of Experiments (DOE) methodology to determine the influence of the laser processing parameters on the hole quality. This work demonstrates the capability of a CO2 laser to produce holes in slate with less than 100 microns in diameter, avoiding any fracture, and with a processing time of less than 50 ms per hole. Finally, this process demonstrates the viability of the production of high-density micron-sized holes in a slate tile for water draining purposes.

The Analysis of a Production Flow with the Help of Value Stream Mapping

2019 ◽  
Vol 957 ◽  
pp. 203-210
Author(s):  
Ana Gavriluță
Keyword(s):  
Lean Manufacturing ◽  
Lead Time ◽  
Entry Point ◽  
Added Value ◽  
Financial Resources ◽  
Value Stream Mapping ◽  
Production Flow ◽  
Flow Mapping ◽  
Value Stream

The main aim of Lean Manufacturing concept is to produce more with less: space, stock, workforce and time. The companies that along the years implemented Lean Manufacturing, reached a spectacular development, mainly because with the same workforce and financial resources, succeeded to increase significantly their profit (some reached up to 300-400% increase). The strength of Lean concept is the calculation of value of product for the final client, considering each stage of manufacturing. Therefore, the main aim of this paper is to analyze and improve the manufacturing flow of a component, from the system entry point to its exit using Flow Mapping and Value Stream Mapping. After all the actions on improving the flow, the activities without added value decreased with 15.92% and the lead time with 15.61%

scholarly journals Comparison of Flank Super Abrasive Machining vs. Flank Milling on Inconel® 718 Surfaces

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1638 ◽  
Author(s):  
Haizea González ◽  
Octavio Pereira ◽  
Asier Fernández-Valdivielso ◽  
L. López de Lacalle ◽  
Amaia Calleja
Keyword(s):  
Residual Stresses ◽  
White Layer ◽  
Added Value ◽  
New Technique ◽  
Flank Milling ◽  
Manufacturing Processes ◽  
Abrasive Machining ◽  
Conventional Process ◽  
Controllable Process

Thermoresistant superalloys present many challenges in terms of machinability, which leads to finding new alternatives to conventional manufacturing processes. In order to face this issue, super abrasive machining (SAM) is presented as a solution due to the fact that it combines the advantages of the use of grinding tools with milling feed rates. This technique is commonly used for finishing operations. Nevertheless, this work analyses the feasibility of this technique for roughing operations. In order to verify the adequacy of this new technique as an alternative to conventional process for roughing operations, five slots were performed in Inconel® 718 using flank SAM and flank milling. The results showed that flank SAM implies a suitable and controllable process to improve the manufacture of high added value components made by nickel-based superalloys in terms of roughness, microhardness, white layer, and residual stresses.

A new generation of predictive models: The added value of hybrid models for manufacturing processes of therapeutic proteins

2019 ◽  
Vol 116 (10) ◽  
pp. 2540-2549 ◽  
Author(s):  
Harini Narayanan ◽  
Michael Sokolov ◽  
Massimo Morbidelli ◽  
Alessandro Butté
Keyword(s):  
Predictive Models ◽  
Therapeutic Proteins ◽  
Hybrid Models ◽  
Added Value ◽  
Manufacturing Processes ◽  
New Generation

Study of the Influence of Measurement Uncertainty on the Sorting of Machined Parts

2015 ◽  
Vol 809-810 ◽  
pp. 1275-1280
Author(s):  
Pavlina Toteva ◽  
Dimka Vasileva
Keyword(s):  
Measurement Uncertainty ◽  
Measurement Technique ◽  
Logical Consequence ◽  
Added Value ◽  
Manufacturing Processes ◽  
Efficient Production ◽  
Machined Parts ◽  
The Creation

The basis of effective and efficient production are the measurements. Manufacturing processes should meet the accuracy requirements to produce fit products. Processes capabilities are determined (estimated) and managed by measurements and not at least the suitability of the products are also found by measurements. The measurement technique is considered as a factor associated with costs without taking part in the creation of added value. As a logical consequence is offered to reduce the measurements in order to reduce costs, according to the possibilities, but this leads to increasing of defects in production. This expensive and sometimes fatal consequences of this mentality are not reported. Processes and products are evaluated incorrectly. The number of errors and the expenses increase.

Differentiation of countries in terms of the shore of domestic value added in exports

2019 ◽  
Vol 64 (7) ◽  
pp. 32-47
Author(s):  
Wirginia Doryń
Keyword(s):  
Value Added ◽  
Trade Flows ◽  
Added Value ◽  
Value Chains ◽  
Manufacturing Processes ◽  
Advanced Manufacturing ◽  
South American ◽  
Knowledge Intensive ◽  
European Economies ◽  
Trade In Value Added

The emergence of global value chains entails that measuring the benefits of foreign trade cannot be limited to measuring trade flows nor their structure. The article aims atpresentingthe results of the time series cluster analysis of the share of the domestic value added of gross exports. It isbased ondata from the latest TiVA database (Trade in Value Added) from December 2018,covering the period 2005–2016. Four clusters of countries were identified. The cluster containing countries with the highest values of the national share of added value in exports included economies rich in natural resources (i.a., Saudi Arabia, Russia, South American countries), with a large internal market and involved in technologically advanced manufacturing processes/knowledge intensive services (including USA, Japan, Great Britain). A group with the lowest share of the domestic value added in exports (not exceeding 50%) contained small and open European economies of Luxembourg and Malta.

scholarly journals Risk analysis in maintenance processes

2020 ◽  
Vol 12 (4) ◽  
pp. 64-76
Author(s):  
Przemysław Drożyner
Keyword(s):  
Risk Analysis ◽  
Added Value ◽  
Repair Work ◽  
Pareto Analysis ◽  
Maintenance And Repair ◽  
Reliability Indicators ◽  
Failure Data ◽  
Failure Risk ◽  
Risk Of Failure ◽  
Operational Data

Abstract The article aims to present practical methods for prioritising the activities of maintenance departments based on the Pareto analysis and the failure risk analysis. Based on the collected data on the number of observed failures and their removal times, commonly known reliability indicators were determined, which were then used to estimate the probabilities and consequences of failures in terms of the risk of loss of production continuity. Based on commonly collected failure data, the developed methods allow proposing to the maintenance departments the sequence of maintenance and repair work to be undertaken in terms of minimising the risk of failure. Risk analysis is somewhat commonly used in the practice of maintenance departments (e.g. RBI, FMEA, ETA, FTE, HIRA). The added value of this work is the use of reliability indicators for estimating the values of risk components, i.e., probability and consequences. The method was developed on the basis of operational data collected in one of the plants of the dairy cooperative and, after assessing the effects of its implementation, it was implemented in other enterprises of the cooperative.

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