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Industrially processed doped-tungsten wires in the as-drawn condition have essentially a <110>-fibre texture with attractive mechanical properties.
An attempt was also made to determine if texture weakening has any effect on the mechanical properties of the wire at room temperature.
The room temperature mechanical properties are listed in Table 2 for the three diameters ∅C, ∅D and ∅E.
Table 2: Table showing mechanical properties obtained from torsion test at an effective strain rate of 2.7 x 10-2 s-1. 5 15 25 35 45 %-reduction ∆-factor Wire diameter Reduction (%) 0 1 2 3 4 5 ∆∆∆∆-factor Fig. 6: Mapping of ∆-factor and drawing reduction as a function of wire diameter.
And the present study shows that the high ∆-factors could weaken the texture.

INTRODUCTION The complex properties, which are estimated on the basis of technology – cal and operational capability of the materials used in various sectors of the economy, physical and mechanical properties occupy a very important place [1].
Changing the formulation, manufacturing techniques and methods of formation – processing, the influence of external factors and determine the shelf – life state of a material, especially a polymer,and are reflected in its physical and mechanical characteristics.
These factors lead to micro-and-macroinhomogeneity of the materials of the processing technology of plastics in the product.
Thus, depending on the material properties, thermal and mechanical chemical treatment of parts value these characteristics are changing.
Research of special form for analysis properties in transmit channels of NDT system.

Based on the research on screw-extrusion dehydration technology, the factors that affect dehydration production volume and efficiency of urban garbage’s recycling have been analyzed.
The main factors of geometric parameters are screw diameter, screw groove depth and helix angle, and all of these three factors can influence dehydration output and efficiency.
Many researches also studied the factors that affect screw-extrusion dehydration efficiency in plant and alcohol dehydration fields.
The above studies mainly focused on the properties of fixed material and structure analysis of single or twin screw.
All of these geometric structure, screw groove depth is the dominant factors which affect the dehydration production volume and efficiency through analysis.

K=Mechanical properties factor with constant value ( 300 ) 1.
The resulting deflection from these forces affecting on the shaft can be explained by the methods of analysis of different stresses.
The above mentioned types of steel resist corrosion and maintain mechanical properties at high temperatures and are widely used in automotive parts such as driving shaft at high speed, it can be used in the vehicles chassis in a form of sheets [9].
Surface strain hardening values (h) can be calculated by knowing the values of the rate of cycle alternating stress (σr ) during revolutions failure (Nf ) and mechanical properties factor ( K ).
And this factor decreases in the case of immersing shafts in salty water and the affect the performance of shaft metal during revolving.

According to GB/T12941-2008 and GB/T 2679.7-2006, the mechanical properties of the material meet the relevant standards.
Tab.1 The factors and levels of orthogonal tests 1.2.3 Testing methods and properties (1) Tensile strength test method of GB/T 12941-2008"Paper and cardboard Determination of tensile strength" to test [1] .
Various factors of impact pierce strength against the primary and secondary: Starch dosage(A)→PVA concentration(B)→Hot-pressing Temperature(C).The best combination of test: A2B3C2. 2.2.1 PVA concentration on the mechanics properties of materials PVA concentration on the mechanics properties of materials.
PVA on bonding effect, mechanical properties of materials with PVA concentration changes as shown in figure 2, 3.
(5) Hot-pressing temperature on mechanical properties of the material.

The paper deals mainly with soft thermal insulation mats and the factors that affect the thermal insulation properties of the insulating material in its manufacture and subsequent incorporation into the structure.
Fig. 1 Dependence thermal conductivity on density Fig. 2 Dependence tensile strength on density From the viewpoint of mechanical properties a weak dependence on density was demonstrated for compressive strength; in the case of stress at 10 % of deformation the correlation could not be prooved.
In the case of the acoustic properties no dependence on density was proved as well, but in the case of dynamic stiffness depends acoustic properties on type and thickness of fibers (thickness was variable) and it is not possible to receive simple dependence on density with variable other properties.
A weak dependence of tensile strength perpendicular to the plane of the plate on density was reported in terms of mechanical properties; by stress at 10 % deformation dependence on density was not found out.
Dependence between acoustic properties and density wasn’t found out because thickness of samples was variable.

Introduction Automotive panel forming process is a plastic forming process which involve geometric nonlinearity, contact and material nonlinearity, large deflection and large deformation, its affecting factors is more and difficult to determine.
The forming quality of the fender is affected by many factors, and these factors are mutual restriction and mutual transformation [1,2].
It can analyze various factors such as die clearance, friction state, blind force size, material parameters and punch velocity affect stamping processes, and it also can do sensitivity analysis and optimal design [6, 7].
The main mechanical properties of materials parameters are as follows: coefficient of normal anisotropy r = 2.18, Hardening Exponent N = 0.232, yield strength is 190MPa, using Belytschko-Tsay thin shell element theory to analyses [8], adaptive grid meshing.
Because of the defects of such results, on the premise of not affecting product performance, the part requires some modification.

The quality question of deep cavity shell was the wall thickness, its influence factors, together with the product structure, die-structure, technology and other factors.
To solve this question, we should consider the integrate impact of molding process, mold and other factors, to enable the best combination of all factors.
The molding temperature depends on the characteristic of plastic, the size and properties of the product and so on.
In the common condition, for the products with high viscosity, thin wall thickness, long process, high precision and complex shapes, to ensure the mechanical properties and dimensional accuracy, the injection pressure need high.
Equipment factors According to the plastic properties to choose the screw type have single head, full thread, offset, low compression, tapered screw, and the aspect ratio is 14-20.

Effect of quenching temperature on the properties.
After different temperature 20SiMn2MoVA steel quenching heating to 200℃ tempering mechanical properties as shown in table 2.
Effect of tempering temperature on the properties.
The mechanical properties of 20SiMn2MoVA steel which quench heated at 920℃ and tempering at different temperature is shown in table 3.
Because martensite is supersaturated solid solution, thus tempering process will precipitate the second phase particles, which affects the mechanical properties of the material.

The importance of these factors and the means for characterizing them for developing standards and specifications are also discussed.
Because of its localized nature it produces gradients in both material and mechanical properties.
Beyond 100-hours, the material properties change little, unless the alloy is heated above 100°C.
Gradients in joint properties were documented with electrical conductivity and microhardness measurements.
Figure 1 shows typical properties with softer heat affected zones located on either side of the stir zone.