Laser Local Stripe Bionic Strengthening of Mould Surface

2011 ◽  
Vol 101-102 ◽  
pp. 889-892 ◽  
Author(s):  
Li Jun Liu ◽  
Li Qiong Chen ◽  
Zhi Xin Jia ◽  
Ji Qiang Li ◽  
Xian Yi Li ◽  
...  
Keyword(s):  
Service Life ◽  
Economic Benefits ◽  
Laser Surface ◽  
Short Life ◽  
Factors Affecting ◽  
Die Life ◽  
Mould Surface ◽  
Butterfly Wings ◽  
Main Factors ◽  
The Cost

In order to solve the problems of the waste of resources, and reduce the cost directly caused by the short life of the hot die in enterprises, this paper analyzes the wear of hot die which is one of the main factors affecting service life, and a thought that enhanced mold through laser surface local stripe grid bionic process is pointed out. Different from traditional laser hardening technology, the service life of mold processed by bionic laser melting enhancement simulating butterfly wings is nearly doubled. Experimental results provide a new way to improve die life, and the application of laser local stripe grid bionic process will bring enterprises significant economic benefits for its extension in mould industry.

Local Laser Bionic Blocking Experimental Study of Hot Work Mould Surface Cracks

2012 ◽  
Vol 201-202 ◽  
pp. 491-494
Author(s):  
Kui Peng Zhao ◽  
Li Jun Liu ◽  
Xue Chang Zhang ◽  
Zhi Xin Jia ◽  
Ji Qiang Li ◽  
...  
Keyword(s):  
Service Life ◽  
Economic Benefits ◽  
Surface Integral ◽  
Laser Melting ◽  
Factors Affecting ◽  
Thermal Fatigue Crack ◽  
Mould Surface ◽  
Hot Work Die ◽  
Laser Transformation Hardening ◽  
Mold Life

For the short life of hot work die in enterprise directly caused problems the waste of resources and the rising cost of production. Based on studying the biological prototype of crack-resistance of plant lamina and found that surface thermal fatigue crack is one of the main factors affecting the service life of hot work mould, it is put forward thoughts about the local bionic laser melting on mould surface to block cracks. Different from the traditional mould surface integral laser transformation hardening (LTH) technology, using laser melting simulating plant lamina to block cracks on the partial surface of mold, life of bionic strengthened die is improved within 1~1.5 times. Experiment results show that a new method is provided to improve the service life of casting mould and promoting this technology will bring significant economic benefits for the mould industry.

Laser Bionic Strengthening Local Grid of Mould Surface

2011 ◽  
Vol 101-102 ◽  
pp. 893-896
Author(s):  
Tie Nan Di ◽  
Li Jun Liu ◽  
Zhi Xin Jia ◽  
Ji Qiang Li ◽  
Hong Zhou ◽  
...  
Keyword(s):  
Economic Benefits ◽  
Surface Integral ◽  
Factors Affecting ◽  
Thermal Fatigue Crack ◽  
Die Life ◽  
Mould Surface ◽  
Local Grid ◽  
Hot Work Die ◽  
Laser Transformation Hardening ◽  
Dragonfly Wings

For the short life of enterprise hot work die directly caused to problems in the waste of resources and the rising cost of production. Based on studying the biological prototype of crack-resistance of dragonfly wings and finding surface thermal fatigue crack is one of the main factors affecting life of the hot work mould, it is put forward thoughts about the local laser bionic strengthening the grid mould surface. Different from the traditional mould surface integral laser transformation hardening (LTH) technology, by using laser melting simulating dragonfly wings to block localized crack in the partial surface of mold, bionic strengthened die life is improved within 1~1.5 times. Experiment results on die steel shows that it is provided a new method to improve the service life of die casting mold and promoting this technology will bring significant economic benefits for the mold industry.

Mechanical Analysis of Warm Extrusion Precision Forming on 42CrMo Steel Cutting Pick

2012 ◽  
Vol 538-541 ◽  
pp. 1061-1066 ◽  
Author(s):  
Chun Jian Su ◽  
Quan Lan Li ◽  
Lin Jing Xiao ◽  
Su Min Guo
Keyword(s):  
New Technology ◽  
Mechanical Analysis ◽  
Extrusion Force ◽  
Factors Affecting ◽  
42Crmo Steel ◽  
Pick Body ◽  
Mining Tool ◽  
Main Factors ◽  
The Cost ◽  
Warm Extrusion

Cutting pick is a kind of widely-used consumptive mining tool. The traditional producing technics of cutting pick body is foundry, or machining after roughly forging, or machining directly from metal bar. By former technics, the property of products is poor, and by latter, the material availability is low and the cost is high. The patent technology for cutting pick body warm extrusion introduced in this paper can overcome all the disadvantages mentioned above. In this paper, by analyzing the characteristic of cutting pick body warm extrusion, adopting the principle of power balance to solve the approximate solution of strain forces, the approximate calculating formulas of extruding power are deduced. The main factors affecting on extrusion force are determined theoretically. This research can be used as basis to design tooling and choose proper equipment for this new technology.

METHODOLOGICAL APPROACH TO FORECASTING THE COSTS OF CREATING AN AUTOMATED RATING SYSTEM

2021 ◽  
Vol 2 (10) ◽  
pp. 21-26
Author(s):  
Anastasia S. Krasnikova ◽  
◽  
Alexander G. Podolsky ◽  
Keyword(s):  
Mathematical Models ◽  
Methodological Approach ◽  
Rating System ◽  
Automated System ◽  
Factors Affecting ◽  
Planning Decisions ◽  
Main Factors ◽  
The Cost

The article presents a methodological approach to forecasting the costs of creating an auto-mated rating system, which allows taking into account the costs of development, production and installation of its components. Economic and mathematical models are presented that take into account the main factors affecting the cost of creating components of an automated system, allowing to obtain adequate forecast esti-mates for making informed planning decisions.

Wastage of conserved fodder when feeding livestock

2010 ◽  
Vol 50 (6) ◽  
pp. 400 ◽  
Author(s):  
C. R. Stockdale
Keyword(s):  
Beef Cattle ◽  
Dairy Cattle ◽  
Present Review ◽  
Factors Affecting ◽  
Storage Method ◽  
The Mean ◽  
Main Factors ◽  
Wet Weather ◽  
The Cost ◽  
The Impact

The objective of the present review was to establish levels of conserved fodder wastage when feeding livestock (sheep, beef cattle, dairy cattle) under various conditions and using various feed-out systems, and to determine the factors affecting wastage. The mean wastage of hay recorded in the literature reviewed was 17% of the DM offered, but the range was from 4 to 77%. The main factors affecting the degree of wastage were storage method, packaging method, method of feeding out, amount of fodder on offer and its palatability and/or quality and the impact of wet weather. Although the emphasis was on hay, the principles should also apply to silage. If wastage was 40% rather than 5%, the cost of feeding conserved fodder to livestock would be a third greater than producers might expect or budget on.

scholarly journals One of the Ways of Artificial Intelligence Implementation in Forecasting

2018 ◽  
Vol 28 (3) ◽  
pp. 500-507
Author(s):  
Tatiana Belych ◽  
Anna Burdukovskaya
Keyword(s):  
Artificial Intelligence ◽  
Oil Prices ◽  
Modern Society ◽  
The State ◽  
Reference Mark ◽  
Factors Affecting ◽  
The Neural Network ◽  
The Subject ◽  
Main Factors ◽  
The Cost

Oil and its refinery products have always been the most important source of energy for modern society, and, therefore, one cannot imagine the life of mankind in any field of its activity without this resource. Energy, military defense, transport, agriculture, domestic needs of the population, the economy of the country are directly dependent on oil and its prices, it plays an extremely important role for Russia in particular, since it is the main revenue item for the state, therefore, forecasting oil prices is a primary task. The purpose of the article is to forecast the prices for this resource for April-August 2018 on the basis of the neural network model use as one of the ways to implement artificial intelligence. Oil prices have been chosen as the object of forecasting, and the subject is the dynamics of oil prices. The choice of the object and the subject of forecasting was conditioned by the fact that the price of oil is one of the main factors affecting the state and pace of development of the domestic economy, and primarily GDP. The pricing of many types of oil is determined by the price of the Brent crude oil reference mark, including the cost of three out of five Russian export brands: Urals, Siberian Light and REBCO, calculated on the basis of Brent prices.

A Whole-Life Approach to the Engineering Support of Equipment

1975 ◽  
Vol 189 (1) ◽  
pp. 533-540 ◽  
Author(s):  
A. M. McKay
Keyword(s):  
Service Life ◽  
Equipment Design ◽  
Key Factors ◽  
Operating Environment ◽  
Design And Development ◽  
Factors Affecting ◽  
Quality And Reliability ◽  
The Cost ◽  
Made In

The cost of maintaining equipment throughout its service life attracts increasing interest as the growing complexity of equipment and plant, exploiting the advances made in engineering technologies, adds impetus to the search for ways and means of containing the effort required for its maintenance. Reliability and maintainability are key factors affecting maintenance workloads, and these are principally determined during design and development. This paper describes the contribution made by the Corps of Royal Electrical and Mechanical Engineers (R.E.M.E.) towards improving the reliability and maintainability of Army equipment, based on knowledge of its intended operating environment and on the Corps' whole-life approach to the provision of engineering support. The paper develops the theme of the James Clayton Lecture Achieving quality and reliability, presented by Professor A. D. S. Carter on 15th May 1974, concerning the paramount need for matching equipment design to the user's requirements.

Recent Rapid Climate Changes in Antarctic and their Influence on Low Diversity Ecosystems

2010 ◽  
Vol 17 (1) ◽  
pp. 17-30 ◽  
Author(s):  
Katarzyna J. Chwedorzewska
Keyword(s):  
Environmental Variables ◽  
Climate Changes ◽  
Biological Significance ◽  
Global Changes ◽  
Factors Affecting ◽  
Low Diversity ◽  
Main Factors ◽  
The Antarctic ◽  
High Diversity ◽  
Temperature Water

ABSTRACTThe geographic position, astronomic factors (e.g. the Earth’s maximum distance from the Sun during winter), ice cover and altitude are the main factors affecting the climate of the Antarctic, which is the coldest place on Earth. Parts of Antarctica are facing the most rapid rates of anthropogenic climate change currently seen on the planet. Climate changes are occurring throughout Antarctica, affecting three major groups of environmental variables of considerable biological significance: temperature, water, UV-B radiation.Low diversity ecosystems are expected to be more vulnerable to global changes than high diversity ecosystems

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