scholarly journals CRITERIA FOR ASSESSING THE COST OF MANUFACTURING PROCESSES AND YOU EFFECTIVITY

2020 ◽  
Vol 5 (9) ◽  
pp. 7-13
Author(s):  
Ing.Darina Matisková
Keyword(s):  
Cost Reduction ◽  
Evaluation Criteria ◽  
Metallic Materials ◽  
Machined Surface ◽  
Economic Criterion ◽  
Technical Parameters ◽  
The Cost ◽  
Required Quality ◽  
Tool Durability

The aim of this paper is to theoretically evaluate the process of machining metallic materials and at the same time evaluate the cost reduction defined by the evaluation criteria. When cutting conditions and tool durability optimizing, it is necessary to apply certain optimizing criterion within certain restraining conditions. [12] The restrictions are given by technical parameters of a machine, tool, machined material, required quality of machined surface etc. The essential economic criterion is the amount of production cost. The notion of “machinability of materials” is a complex of characteristics of the machined material which is monitored in the view of its fitness for the production in a certain way of machining.

Conceptual imposings of quality management of system of production of composite materials for it is rocket the space equipment

2017 ◽  
Vol 14 (4) ◽  
pp. 30-38
Author(s):  
V. G. Isaev ◽  
T. N. Antipova
Keyword(s):  
Composite Materials ◽  
Quality Management ◽  
Evaluation Criteria ◽  
Criteria And Indicators ◽  
Properties Of Materials ◽  
A Priority ◽  
Required Quality

Basic provisions of the concept and methodology of production of composite materials for the missile and space equipment are offered. The system of the purposes realizing the principle of a priority of the purposes of the customer is offered. The system of evaluation criteria and indicators of quality of composite materials the realizing interrelation of requirements of the customer to quality of material and dependence of ensuring the required quality on the used technologies is developed. It is shown that for ensuring quality of composite materials for units and the RKT systems first of all it is necessary development of mathematical dependences of properties of materials on parameters of the technological modes in the conditions of obligatory implementation of requirements of the customer.

scholarly journals A Framework for the Improvement of Frugal Design Practices

Designs ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 37
Author(s):  
Ravindra Singh ◽  
Sumedha Seniaray ◽  
Prateek Saxena
Keyword(s):  
Cost Reduction ◽  
Distribution Analysis ◽  
Relative Importance ◽  
Design Practice ◽  
Cumulative Frequency Distribution ◽  
Frugal Innovation ◽  
Importance Index ◽  
The Cost ◽  
Discriminatory Effect

Current frugal design practice is focused on the cost reduction of the product. Despite advancements in the domain of frugal Innovation, it is not systematized to develop products for all sets of users, including marginalized society. Many design researchers and engineers now dedicate time and knowledge to producing practical solutions to enhance the quality of life of the marginal community. The approach currently being adopted restricts the development of products intended for all segments of the users. In this paper, cumulative frequency distribution analysis and the Relative Importance Index is used to identify the essential attributes, which contribute to delivering actual frugal products in terms of functionality, usability, performance, affordability, accessibility, aesthetics, and robustness. The framework is beneficial to eradicate the discriminatory effect of being labeled as “Jugaad” users.

scholarly journals Improving the laser engraving quality of padpainted and spray-painted mechatronic devices

2019 ◽  
Vol 299 ◽  
pp. 06004
Author(s):  
Ion Cristian Braga ◽  
Razvan Udroiu ◽  
Anisor Nedelcu
Keyword(s):  
Optical Microscopy ◽  
Cross Section ◽  
Cost Reduction ◽  
Paint Layer ◽  
Measuring Techniques ◽  
Ultrasonic Measuring ◽  
Coating Layers ◽  
The Cost ◽  
Different Thickness

Considering the cost reduction in automotive processes, in the case of mechatronic devices that use2-3 colours for symbols, a solution is to replace the multi-component molding injection with the painting of a white component substrate in different colours. However, combined painting techniques, namelypad-painting and spray-painting, can lead to many risks, especially when those symbols are obtained bylaser etching, so removing the final paint layer to let only the first coloured layer be visible. The paper's aim is to present the analysis and reduction of the variation due to the different thickness of the coating layers as well as their drying level by using the ultrasonic measuring techniques and the optical microscopy cross-section to reduce the over-adjusting of the engraving parameters and to improve the final quality of the symbols.

scholarly journals Methods of habitat reports’ evaluation

2019 ◽  
Vol 9 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Jolanta Harasymiuk ◽  
Elżbieta Hanna Szafranko ◽  
Jan Tyburski
Keyword(s):  
Environmental Impact ◽  
Evaluation Criteria ◽  
Natura 2000 ◽  
The Other ◽  
Legal Regulations ◽  
Review Of The Literature ◽  
Preparation Stage ◽  
Environmental Requirements ◽  
The Cost

AbstractA building investment, especially in nature valuable areas, is almost always inseparable with a bigger or smaller environmental interference. For a few years there are legal regulations created to protect these areas. One of them is the requirement to conduct a habitat evaluation and to prepare a habitat report if there is a indication of significant impact on the Natura 200 site. The quality of such a report is crucial for completion an investment in a chosen localisation as well as for shortening a preparation stage with respect to environmental requirements. A defective report can result in a agreement refusal of investment completion conditions of an investment by an authorised body, and can be a reason for protests of a community which is affected by the planned investment. A well-made report, on the other hand, results in a smooth acceptance of the project without the need for consultation of the investor with the proceeding body and saving the cost of correction of a defective documentation. An review of the literature done by the authors and the talks carried out with the staff making an assessment of reports of an impact on Natura 2000 sites showed the lack of common use in practise of a formalised set of criteria of evaluation of such documents. The aim of the study was to prepare a set of evaluation criteria for reports on environmental impact on Natura 2000 sites. The set was tested on already made reports and it showed their basic omissions and disparities. The set prepared can be used by an investor in the course of making a report. It can be also a useful tool for a verifying clerk while evaluating a report for its completeness and adequacy. On the basis of the prepared set of evaluation criteria, a procedure was proposed allowing an impartial verification of reports. As a result of analyses made, a procedure was worked out which is presented in the diagram concluding this paper.

scholarly journals Deformation Structures and Tool Wear during High-Speed Machining

2013 ◽  
Vol 10 (1) ◽  
pp. 12-17
Author(s):  
Karol Vasilko
Keyword(s):  
High Speed ◽  
Cutting Speed ◽  
Tool Material ◽  
Machining Process ◽  
Surface Dynamics ◽  
Machined Surface ◽  
Deformation Structures ◽  
Cutting Speeds ◽  
Tool Durability

Abstract Tendencies towards increasing cutting speeds during machining can be observed recently. The first wave of increasing cutting speeds occured in the 60s of the previous century. However, suitable tool material was not available at that time. Increasing cutting speed is possible only following the development of cutting material, resistant against high temperatures, abrasive, adhesive and diffusive wear. It is obvious that the process of chip creation, quality of machined surface, dynamics of machining process and temperature of cutting change considerably with cutting speed. To be able to apply higher cutting speeds in production machining, it is necessary to know the dependence of those characteristics on cutting speed. Some of those phenomena, which are linked with cutting speed, will be explained in the paper. Key words: machining, cutting speed, tool durability, surface quality

scholarly journals Variety and its quality in energy-saving tomato production technology

2020 ◽  
Vol 201 (10) ◽  
pp. 16-21
Author(s):  
N. Velizhanov
Keyword(s):  
Agricultural Research ◽  
Evaluation Criteria ◽  
Tomato Production ◽  
The Republic ◽  
Dietary Value ◽  
High Yields ◽  
The Cost ◽  
Flat Zone

Abstract. In the 21st century, the share of the variety in the formation of the size and quality of the crop will increase from 20-40 to 70 % or more. It is obvious that the role of the variety increases significantly not only in increasing productive, but also medium-improving functions of agrophytocenosis, including soil-improving, phytosanitary, bioenergy, design – aesthetic, etc. A lot of attention is paid to the appearance, texture, taste properties of fruits, which increase their dietary value and overall attractiveness to buyers. Methods. The research was carried out at the experimental site of the Federal Agricultural Research Center of the Republic of Dagestan in 2017–2019. In production conditions, 12 widely used varieties of tomato have been tested in the seedling culture in recent years. The samples were studied using the ACIRO methodology and the State Crop Testing Methodology. Results. Promising varieties with high adaptability and stability in extreme conditions of the flat zone of the republic have been revealed. We have established morpho-anatomical and physiological changes in varieties of stamp forms, which determine their reduced, compared to the unstamable forms of resistance to drought, which significantly inhibit production processes in dry years. The most economic was the cultivation of varieties with high yields of standard fruits - Mariana, Mirage, F1 Andromeda. The cultivation of the Hussar variety cost 1.6 times more than F1 Andromeda. The cost of obtaining 1t standard harvest for other varieties was significantly higher. Scientific novelty is to study the sign of a reduction in the duration of the growing season in the combination of the size and yield of fruits on the biochemical composition, taste and technological, which is overcoming negative bonds, or to achieve a compromise combination. In the process of creating new ones and testing them, these evaluation criteria should be decisive.

Evaluation of stereo imaging capabilities and parameters when using personal computers: Defining a low-cost high-quality system

1992 ◽  
Vol 50 (2) ◽  
pp. 1048-1049
Author(s):  
John M. Mackenzie
Keyword(s):  
Low Cost ◽  
Evaluation Criteria ◽  
Imaging Systems ◽  
Personal Computers ◽  
Stereo Imaging ◽  
High Quality ◽  
Display Devices ◽  
The One ◽  
The Cost

Over the past several years the capabilities of personal computers have advanced at a staggering rate. At the same time, the cost of the hardware has dropped to such a degree that one wonders whether such inexpensive hardware can perform adequately.The purpose of this discussion is to look at the minimum hardware necessary to do quality stereo imaging on CRT display devices and to discuss several important evaluation criteria in producing these stereo images.The most important criteria for producing high quality stereo pairs lies in the quality of the digitization of the image. Most TV rate imaging systems even after multiple frames are averaged are quite distorted and lack sufficient image detail. Slow scan imaging systems such as the one developed in this laboratory which use a gated integrator and can digitize at over one thousand pixels square with 256 gray levels produce images which are extremely close to photographic quality.

Diamond grinding of carbide punches by grinding wheels with a multilayer composite electrolytic coating

2020 ◽  
pp. 41-47
Author(s):  
M.A. Shavva ◽  
S.V. Grubiy
Keyword(s):  
Cutting Forces ◽  
Grinding Wheel ◽  
Multilayer Composite ◽  
Coating Quality ◽  
Machined Surface ◽  
Electrolytic Coating ◽  
Diamond Grinding ◽  
Single Grain ◽  
Required Quality

The finish diamond grinding of a parabolic surface of a hard alloy punch with a grinding wheel with a multilayer composite electrolytic coating is considered. The cutting forces acting on a single grain are calculated. The cutting conditions that provide high tool life and the required quality of the machined surface are determined. Keywords diamond grinding, grinding wheel, multilayer composite electrolytic coating, quality, machined surface, cutting forces. [email protected]

Ensuring the quality of the surface in the processing of hardened steels, titanium alloys and polymer composite materials

2021 ◽  
pp. 263-268
Author(s):  
P.A. Sablin ◽  
V.S. Shchetinin
Keyword(s):  
Composite Materials ◽  
Titanium Alloys ◽  
Polymer Composite ◽  
Output Parameter ◽  
Cutting Process ◽  
Polymer Composite Materials ◽  
Machined Surface ◽  
Multifactorial Approach ◽  
Required Quality

A multifactorial approach to ensuring the required quality of the machined surface of difficult-to-machine and hardened materials is considered, which takes into account a wide combination of controllable parameters of machining. A scheme of multifactorial influence on the output parameter of the cutting process — roughness is proposed.

scholarly journals Online Shopping in Nepal: Preferences and Problems

2019 ◽  
Vol 12 (1) ◽  
pp. 71-86
Author(s):  
Rashesh Vaidya
Keyword(s):  
Business Model ◽  
Cost Reduction ◽  
Online Shopping ◽  
Easy Access ◽  
The Internet ◽  
Time Saving ◽  
Business To Consumer ◽  
The Cost ◽  
User Friendly

The popularity of online shopping among Nepalese customers has increased with the cost-reduction of technology-based goods, the cost of internet services, and easy access to the internet. At the same time, the convenient modes of payments, and user-friendly, as well as, interactive shopping apps are further paving a pathway to unprecedented growth in the online shopping companies. The online shopping companies in Nepal have been seen following the Business to Consumer (B2C), Customer to Customer (C2C), or the ‘Facebook Store’ business model. The paper has taken 300 respondents, as a sample, who have at least twice shopping experiences, from a single online shopping company. The multiple-choice question, and open-end questions related to the preference, and problems faced were asked while going for online shopping in Nepal. In context to Nepal, time-saving, offers, easy ordering system and information available at the online shopping portal, were the main reasons for the shoppers, to prefer online shopping. The service quality provided by the online company, made the Nepalese customer, prefer online shopping. The quality of the product delivered to the customer was seen to be the major problem in Nepalese online shopping. The delivery of the wrong product was also seen one of the problems in online shopping in Nepal.

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