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A Study on the Grindability of Engineering Plastics and Metals BÍLEK Ondřej1, a *, BAĎUROVÁ Jitka2, b and ČOP Jiří1, c 1Tomas Bata University in Zlín, Dept. of Production Engineering, Czech Republic 2Tomas Bata University in Zlín, Dept. of Physics and Materials Engineering, Czech Republic abilek@ft.utb.cz, bbadurova@ft.utb.cz, ccop@ft.utb.cz Keywords: Surface Grinding, Grindability, Engineering Plastics, Construction Metals, Surface Roughness.
Grindability of engineering thermoplastics and metals was evaluated.
These materials are referred to as engineering materials and although they have a number of classifications may be grouped as metals and non-metals, further subdivided into plastics (synthetic materials) and natural materials.
The aim was to understand the impact of process conditions during grinding of engineering materials and highlight common variables.
A rather different engineering materials have many common features.

A Beneficial Attempt — An Engineering Practice of Reusing Old Building Materials Yan Li1, a, Zhe Li 2,b, Ying Song3,c 1Architecture School, Tian Jin University, No.92 Wei Jin Road, Nan Kai District, Tianjin, China 300072 2Architecture School, Tian Jin University, No.92 Wei Jin Road, Nan Kai District, Tianjin, China 300072 3Foreign Language Department of Shijiazhuang Tiedao University, No. 17 North 2nd Ring Road, Shijiazhuang, Hebei Prov., China 050043 aliyan1@yeah.net, blee_uav@tju.edu.cn, ccherry7112@163.com Keywords: Old Building Material, Reuse, Engineering Practice Abstract.
With the support of party A, the Mou Estate designed by the author serves as a good example of old village transformed by utilizing old materials.
New buildings whose decoration and building materials clash with the village landscape will be dismantled and reconstructed.
The materials used should conform to the traditional style (Fig.4). 2.
Concrete measures are as follows: (1) Reusing old building materials Table 2: Brick Cost Households Construction Materials Volume of Materials /M3 Unit Cost (yuan) Total Cost (10 thousand yuan) 1 Brick 55.95 1.1 3.53 43 Brick 2405.85 1.1 151.8 Construction wastes such as bricks, stones and concrete blocks of dismantled buildings are to be refilled into the walls of new buildings while the wall corners, doorframes and window frames use new building materials for the sake of smoothness and solidity.

Key Technology Development Trend for Recycled Aluminum Industry Based on Technology Roadmap Zhengshu Yang1, a, Shaoxun Lv1, b Pengchong Cao1, c, Muhammad Ibrahim Abdullah2, d, Wei Liu2, e 1College of Mechanical Engineering, Chongqing University, Chongqing, 400044, China 2College of Economics and Business Administration, Chongqing University, Chongqing, 400044, China ayzs_119@163.com, blvsx2010@163.com, ccpcaopengchong@163.com, dmiabdullah@gmail.com, eliuwei@cqu.edu.cn Keywords: Recycled Aluminum Industry, Technology Roadmap, AHP Model, Key technology.
This paper studies the key technologies of recycled aluminum by technology roadmap method.
Introduction During the last decades, recycling of a wide array of materials, ranging from food product waste to advanced products such as cars and computers has become part of everyday life [1].
Although the production of recycled aluminum looks very simple, in fact, it is a system of engineering with numerous processes, including raw materials procurement, sorting, melting, ingot casting, as well as equipment and technology management and other important links.
They are: general technology, important technology and key technology.

On the basis of analysis and studying the aviation material engineering application and according to 9-level technology readiness standard, we put forward material readiness level and level entries, using which you can assess material readiness straightway.
Material and process are the key confinement element for aviation engine.
Many researches indicate that new materials and process are the key elements of the competitive power for gas turbine engine. 70 percents contributes are material and relative preparation technic in order to improve thrust-weight ration of advanced engine.
There is the phenomenon of high regarding the manufacture progress but neglecting material readiness, lack engineering usage research.
Many aviation materials are directly used to small-lot production and model number under the condition of lack of engineering usage research, so there are many different problems during the using of material and component.

Engineering mechanics is the study of relevant materials and its application in the motion law of the macro science.
In each key section, we arrange seminars or exercises lesson.
To help the students to learn the engineering mechanics, we have developed "Engineering Mechanics" web site.
Acknowledgements This work was financially supported by the University basic discipline construction - the mechanics of materials and the Shandong provincial high-quality curriculum - the mechanics of materials.
Mechanics in Engineering. 2002,24(3) 56-57.

With the advantage of highly accurate placement of biomaterial materials, cells and functional factors, this technology has been one of the most promising 3D printing methods for tissue engineering [6].
Furthermore, inkjet printing has been one of the key technologies in tissue engineering because of its moderate fabrication cost, good process controllability and scale-up potentials [7].
First, materials used in this research and method were described in detail.
Materials and Method Materials.
Review: Polymeric-Based 3D Printing for Tissue Engineering, Journal of Medical and Biological Engineering, 2015, 35(3):1-8

Individual Design of mechanical and electrical products Based on Reverse Engineering Zhiqing Wu1,a, Tiejun Wu2,b 1 Guangzhou Institute of Technology, Guangzhou 510057, China awuzhiqing@sina.com 2 Dongguan Polytechnic College, Dongguan 523808, China bWtj1980@126.com Key words: Electric drill handle, Reverse engineering, Individual design Abstract: This paper introduced a new design method for mechanical and electrical products, for example electric drill handle.
While reverse engineering technology can make up the shortage of toward design 2 Reverse Engineering Reverse engineering is defined as obtaining mathematical model from actual sample and manufacturing new product.
Reverse engineering mainly includes data collection, data processing, model reconstruction.
The processed model is shown in Fig.5. 3.3 Reconstruction of 3-D surface Reconstruction of 3-D surface is the key technique of reverse engineering.
Research on surface reconstruction and realization in reverse engineering technique[D], 2007

A key part of this education, not just for engineers but also lawyers and others who work in safety regulation services, is explanatory experiments.
Classical assignments connected with the prevention of damage to machines and the destruction of construction materials are at present expected to be realized by specialists in safety engineering [2,3].
Constructors and technologists may use inappropriate materials or inappropriate computer software.
Accessible educational materials and instruction have not been adapted to the level of the people to be instructed.
Conclusion Over recent years a new discipline has been added to the engineer‘s art: safety engineering.

The Determination of Key Material Property in High Energy Beam Drilling Je-Ee Ho 1,a and Chen-Lung Yen2,b 1Department of Mechanical Engineering, National Ilan University, Ilan, Taiwan, R.O.C 2, Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C, 1* e-mail: jeho@niu.edu.tw, 2 e-mail: jeho@niu.edu.tw, *Corresponding author, e-mail：jeho@niu.edu.tw Keyword: material removal rate Abstract.
In this study, a 2-D model with dimensionless analysis was proposed by discussing the roles of the active material properties in high energy beam drilling.
Among these parameters, the dimensionless material property π, defined as evaporation latent heat to internal energy at melting point, was proven to be the key member; which not only significantly influenced the nonlinear variation inside the work piece, but also directly determined the penetration results whose behavior showed a resemblance to the distribution of exponential function in π .
This paper focuses on developing several dimensionless groups where the related independent variable will be included together and the key group will be further generalized by estimating their order in respectively equation.
Analysis To determine the key material parameter, dimensionless analysis is necessary in following procedure.

To achieve this capacity additive will require significant advancement in key engineering materials combined with innovation stimulants to leap-frog the current performance and cost barriers for competitive energy producing alternatives.
To achieve this capacity additive will require significant advancement in key engineering materials combined with innovation stimulants to leapfrog the current performance and cost barriers for competitive energy producing alternatives.
Innovative new materials and processes to enable this will be imperative.
Another example of this collaborative success involves a team of EMTEC, Makel Engineering, and Argonne National Labs that in 2006 was awarded both an IR100 Award and a Micro/Nano25 Award for developing the materials and technologies for an advanced hydrogen sensor system for hydrogen powered transportation applications.
In developing innovative key materials for any market, especially those required for alternative energy, assessing the innovative material in a decision matrix may be helpful.