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As tailor-welded blank having two or more sheet metal welded together, with different mechanical properties, coating and thicknesses, its yield strength and tensile strength are higher, but hardening exponent and elongation are lower than a single sheet.
The different mechanical properties of substrates and weld movement have significant effects on TWB's formability, different materials or thicknesses easily lead to uneven deformation and forming defects such as cracking, wrinkle and springback.
Forming Characteristics of TWB As TWB has two or more sheet metal welded together, with different mechanical properties, coating and thickness.
In particular, as the hardening of weld-line and heat affected zone, the overall mechanical properties of TWB changed significantly, and presenting some characteristics completely different from traditional stamping process.
Therefore, the yield strength ratio is also an important factor that affecting the forming performance of TWB.

Design of Experiment: A Statistical Approach to Understanding Factors Influencing Surface Properties of sol-gel based Non-stick Ceramic Coatings.
Through Design of Experiment (DOE) a mathematical and statistical techniques can be used to design,build and evaluate effects of factors (process variables) and identify optimum condition of variables for desirable properties.
A 26-1fractional factorial screening design was performed with six experimental factors to investigate three responses (surface properties) of sol coatings are shown in Tables 1and 3 respectively.
Conclusion Design of experiment (DOE) was used as a prediction tool to determine the experimental process factors that could have influence on the surface properties of ceramic sol coatings.
Mechanical Properties Derived from Nanostructuring Materials, 2003, pp. 271-276

In the present work, RDX (Cyclotrimethylene trinitramine) has been used in successive increments replacing AP (Ammonium Perchlorate) in number of batches by varying the percentage of solid loading, and studied their different properties such as viscosity build-up, mechanical and ballistic properties.
Nitramine-based energetic compounds are used in solid composite propellant formulations to increase the energy release, i.e., specific impulse with improved mechanical properties [3].
Generally, the adhesion between the binder and the oxidizer (AP) particles is improved by the use of bonding agent to achieve better mechanical properties.
Complexity of the generated dependences is influenced by many factors such as solid component quantities; type of binder, curing agent, particle size distributions and theirs shapes quantity and type of bonding agent and the like.
The mechanical properties of the propellant compositions are evaluated.

Blend of 40% UHMWPE/ 60% HDPE/ 2 phr PEG was chosen as the optimum blend composition with a balance properties in terms of the mechanical properties and processability.
The inclusion of HA filler particles to form composites has been shown to enhance mechanical properties and exhibits excellent bioactivity properties [3].
Overall, as the main target to produce composites with a good mechanical properties and processability, thus blend of 40% UHMWPE/ 60% HDPE/ 2 phr PEG is deduced as the optimum composition to be used to investigate the effect of HA on mechanical properties of UHMWPE/HDPE/PEG blends.
Amount of surface contact between the polymer matrix and the filler can be determined by the specific surface area as it determines the interfacial interactions which significantly affects the mechanical properties of the composites.
Blend of 40% UHMWPE/ 60% HDPE/ 2 phr PEG showed the optimum properties in terms of the mechanical properties and processability.

Microstructure, phase composition, mechanical and tribological properties were studied as functions of alloy composition.
Their favourable properties are good corrosion resistance together with lower density (5.7 g.cm-3 for FeAl [1]) than currently used iron- or nickel-based alloys and low cost of the constituents.
In this work, the effect of partial replacement of iron by other transition metal on the structure and properties of Fe-Al and Fe-Al-Si alloys was studied.
There are two opposite factors influencing the wear rate.
The second factor affecting the wear rate is the ductility.

All these have established the theoretical foundation on studying both dynamic mechanical properties of the cutting and tool’s failure.
Therefore, it has a positive significance to forecast cutting process accurately through researching dynamic mechanical properties of the cutting and conditions of tool’s failure.
Therefore, the main factor affecting the state of the tool is shear stress.
The experiment product is the blank of hydrogenated cylindrical shell and whose chemical and mechanical properties are shown in table1.
Wang: Research on the Orthogonal Cutting Process of Metal Dynamic Mechanical Property and Thermoplastic Shear Instability (Ph.

Results show that the cutting contact curve of cutter affects directly the process of high speed ball-end milling, fuzzy and uncertain properties exist in the evaluation for the cutting track of cutter.
Experiment results show that fuzzy and uncertain properties exist in the multi-factor evaluation for the cutting tracks of high speed ball-end milling cutter.
U is a set of evaluation factors, V is a set of evaluation, and R is the evaluation matrix.
(10) where U is the first-ply set of evaluation factors, Ui is the second-ply set of evaluation factors, uij is the evaluation factor, and vg is the cutting track of cutter.
Research on the cutting track of cutter indicates that fuzzy and uncertain properties exist in the evaluation for the cutting tracks of high speed ball-end milling cutter.

The main factors affecting the peak values of the interfacial stress was also investigated entirely.
The effect depends on two factors such as the distance of plate end from the support and plate thickness.
But it affect the save use of the reinforced structure, therefore, the analysis of the bonding shear stress at the end of Strengthening plate has attracted much attention[1].
Mechanical model.
Choosing the reasonable material constitutive relation based on the mechanical properties of various materials of Affixed Reinforced RC Beams.

As we know the mechanical properties of bone depend on numerous factors and the properties vary in a wide range [13].
And FEA models can predict the mechanical properties of porous Ti6Al4V produced using selective laser melting.
The modulus and strength are decreased with increasing porosity, but the specimen e 0.4-0.7and f 0.3-0.5 are the contrary, the factors need further study.
Zadpoor, Mechanical properties of open-cell metallic biomaterials manufactured using additive manufacturing, Mater.
Zadpoor, Mechanical properties of open-cell metallic biomaterials manufactured using additive manufacturing, Mater.

Factors affecting heating rate and contact tip temperature during welding have been described.
Heating of the welding torch contact tip causes changes in the structure and physical properties of the material of which it is made.
A large number of different factors affect heating rate and temperature of the contact tip: - method of energy deposition (steady-flow process or pulse-arc process of arcing [6]); - welding modes (current, voltage, welding speed, wire feed speed, volume and speed of shielding gas efflux, etc.); - physical properties of contact tip material (copper, composite copper-based material, copper alloy, etc.); - physical properties of welding wire material; - physical properties of shielding gas (active, inert, gas mixtures [6]); - geometric characteristics of the contact tip and details of the welding torch (tip diameter, gas inlet nozzle diameter, tip length, etc.); - design features of the welding torch and the device for feeding materials that improve weld joint quality into the welding zone or weld pool [7].
Potapievsky, Welding in carbon dioxide, Moscow, Mechanical Engineering, 1984
Kochergin, Contact welding, Leningrad, Mechanical Engineering, 1987