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Titanium Skull Prosthesis Multi-Point Forming Medical titanium sheet of material properties and characteristics of plate directly impact on shaping the process of plate deformation law, while multi-point forming press device parameters as well as the availability of the blank holder will restrict the stamping forming quality.
Mathematical model of the skull prosthesis Medical material properties of titanium alloy and sheet features.
Properties of the materials parameters on the forming properties have a greater impact, while also directly affects the characteristics of plate shaping in the process of plate deformation law.
China Mechanical Engineering, 2008, 19(13): 1610-1620
China Mechanical Engineering, 2008, 19(6): 748-750.

MICROSTRUCTURE EVOLUTION AND MICROSTRUCTURE - PROPERTY RELATIONSHIPS IN FRICTION STIR PROCESSING OF NiAl BRONZE T.R.
However, the direct measurement of stir zone temperatures, strains, strain rates and cooling rates is difficult due to steep gradients and transients in these quantities, and this is an impediment in the assessment of FSP-induced microstructures and properties.
Factors that influence the distribution of strength and ductility in the stir zone appear to include the mixture of microstructure constituents and gradients in microstructure due to gradients in processing conditions.
The severe, but localized, plastic deformation results in formation of a stir zone (SZ) while adjacent regions that experience only moderate straining comprise the thermomechanically affected zone (TMAZ).
Benefits of FSP in cast metals include elimination of porosity and local conversion of cast microstructures to a wrought condition, with enhanced surface properties.

The production efficiency and the part quality are seriously affected by the temperature and its distribution uniformity on the mold cavity surface.
The number of channels, diameter of channel (), distances between channels () and distance from the channels to cavity surface () shown in Fig.1 are all parameters affecting the heating transfer in the mold.
The properties of the cavity plate material used in this paper are listed in Table 1.
Generally, high heating/cooling efficiency and good temperature distribution uniformity of the mold cavity surface are the ultimate goals for ensuring the mold strength, the product appearance and mechanical properties.
(2) The temperature distribution uniformity is one of important factors that influence the products quality.

The corrosion defect will cause stress concentration under the service load, likely leading to a failure, and seriously affecting the safety operation of the oil tube.
Tube Material Properties.The N80 steel widely used in the Tahe oil field in China was considered in this study.
As the axial force grows to a certain extent, the oil tube with a smaller internal pressure is affected by the axial force.
In conclusion, the axial force is the most important factor for the maximum stress, and the internal pressure almost has no effect on the stress.
[14] The American Society of Mechanical Engineers, ASME FFS-1-2007 fitness-for-service, second ed., API, Washington DC, 2007

Different organized text resouces are related with each other according to similarity of specific topics.As a result, degree of polymerization of content and information of text is improved.However, knowledges of type selection of clutch are still discrete and exist in unstructured and independent text.These knowledges need further to be extracted as knowledge element and processed to form into structrual knowledges.The essence of knowledge structuring is associating and locating of knowledge.Fragmented knowledge can be converted into orderly and structrual knowledge with the back of contextual background knowledge through knowledge structuring.It makes knowledge nodes have ID number, reasonable properties and associations with each other.
The algorithms and steps of extraction of knowledge element are listed below: Name and index information of feature of knowledge element are defined through hierarchical analysis to finishing text; Retrieve the key elements in the text as a triggered mark.Different semantic blocks where the key factors are located in text are processed by pattern matching to determine the legality of factors of knowledge elements.The key elements mainly come from concepts and properties of ontologies which have the similar name as knowledge element; Relations between semantic block and name of knowledge element are established according to critical elements' classification in the factors of knowledge elements; Semantic net based on knowledge elements is constructed according to the struct of knowledge element to realize structurual presentation of knowledge element; Construct relations of factors of type selection according to structurual representation of knowledge element; As is shown in the figure
These criterias are clarity,coherence,extendibility,minimal encoding bias and minimal ontological commitment.Different agents are linked to outer layer of entire knowledge net in the figure 3.Methods, properties and algorithms,etc, related to leaf nodes are encapsulated in the body of Agent.
Knowledge resources can be obtained through triggering intelligent agent program which is satisfied with trigger conditions.Specific domain knowledges are organized in the corresponding intelligent agent with the form of agent directory.It has two advantages to organize knowledge resources of leaf nodes through independent intelligent agent.Firstly,knowledge of relevant attribute class and the factual class can be extracted easily,such as checking formulas and parameters,etc,so it is easy to establish knowledge network with better abstract structure.Secondly, It assure consistency of knowledge and data through encapsulating all kinds of specific factual knowledge resources in different intelligent agent.So knowledge has the properties of mutual independence and it is convenience to access and knowledges can be operated by corresponding intelligent agent.
,Research on modern design theory and methods of mechanical products facing information age[J].

An investigation has been undertaken of the structural characteristics of the manganese oxides to understand these characteristics affected by mechanochemical treatment conditions.
Major attention was paid to a direction of the redox processes and peculiarities of structural properties resulted from the metastable nature of the neogenic phase states.
For grinding described in detail in [2, 3] the AGO-2 planetary mill (2 hardened steel drums of 150ml each) with centrifugal factor g = 60 [4] was used.
Mechanical treatment was started after preliminary drum fettling in a continuous mode or with periodic breaks of a mill.
It was also revealed, special additional mechanical treatment of the mixture during 1-2 minutes led to a complete reduction of the MnO2 oxide and formation of a single-phase Mn2O3 nanopowder.

So it increases the time reserve of penetration and improves the property of penetration and lubricating effect.
Through researching on the cutting force and SEM pictures of chip, the influenced laws can be found that these factors affect on the lubricating effects with water vapor jet assisted turning.
The Laws of Cutting Force Fc Affected by Setting Pressure Pa.
The Laws of Cutting Force Fc Affected by Cooling Distance Lp.
Wang: Chinese Journal of Mechanical Engineering, Vol.36 (2000) No.8, pp.6

Introduction The use of Powder Metallurgy (P/M) aims to obtain orthopedic implants with almost net-shaping and adequate mechanical properties and surface porosity.
This TNZT has excellent non-toxic components with good mechanical properties and workability [5, 6, 7].
Table 1 Mechanical properties of Ti 35Nb 7Zr 5Ta.
Nevertheless, those pores could affect the mechanical properties, hence, should be controlled.
Design and mechanical properties of new β type titanium alloys for implant materials.

The determination of material properties is particularly relevant in the field of investigation of mechanical characteristics of live tissues [8] due to the relative simplicity of the performance of experiment and, often, insufficient volume of the material, which does not allow to perform the test of another kind.
In particular, the scale factor affects the indentation curves, which many researchers use to determine the elastic constants of the material [1, 2, 3].
The results of experiments on nanoindentation will only reflect the essential properties of the material when the material sample is sufficiently "large" in comparison with the radius of the spherical indenter.
Giannakopoulos, Evaluation of material properties of incompressible hyperelastic materials based on instrumented indentation of an equal-biaxial prestretched substrate, Int.
Ogihara, Parameter identification of hyperelastic material properties of the heel pad based on an analytical contact mechanics model of a spherical indentation, Journal of the Mechanical Behavior of Biomedical Materials. 65 (2017) 753-760

Besides the three mentioned main sources of process-induced distortions, several additional influencing factors have been considered.
Among these influencing factors, a gradient in fibre volume fraction seems to be most critical, since almost all effective laminate properties are affected.
They took only laminate properties and tool-laminate interface effects into account.
It is assumed that the described deviations are mainly caused by resin properties not captured accurately enough yet.
DuBois, Properties & limits: Review of shell element formulations, in: Developer Forum, Filderstadt, 2013