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However, to the authors’ knowledge, there are no experimental data of the effect of Ni and Co additions to filler metals on the dissimilar joints of cemented carbide and steel.
The joint strength of the brazed joints was decreased in spite of the reduction of the Co-depleted zone, it is considered that the decrease in average hardness of brazed layer predominantly affects to the joint strength.
However, in multiple additions, the joint strength of the brazed joints was decreased in spite of the reduction of the Co-depleted zone.

Introduction Hot stamping process has been developed to produce the steel automobile parts with an ultra-high-strength of 1500 MPa for improving crash safety and weight reduction.
The hot stamping needs the data of many process parameters such as, the thermo-mechanical and metallurgical interaction and their influence on the formability.
It is supposed that the small surface expansion leads to reduction of an expose of the base metal even under thin scale thickness and the fine fragment made of thin scale thickness can act as a lubricant effectively.

The thermal reduction of iron oxides proceeds during this process.
A constant sample mass was assumed as the end of the reduction process.
The data shown were obtained for the reactions of oxidation and carburization of fraction A.

Real-time data acquisition can be done by using the control card and high-precision motion control can be achieved by adopting sliding mode control algorithm.
Controller parameters are the same as above and the structural parameters of the mobile robot are chosen as follows, the reduction ratio of gearbox i=33:1, R=210mm, L=410mm.
Reduction of Control Torques of Mobile Robot Using Hybrid Nonlinear Position Controller.

Preheating Titanium helps in substantially increasing the tool life and improving machinability [3].The principle behind Pre-heating is increasing the difference in hardness between cutting tool and work piece thereby leading to a reduction in the component forces, improved surface finish and longer tool life.
M.Nouari and H.Makich [8] have stated in their research work that a reduction of cutting forces is noticed when the cutting speed increases, owing to the thermal softening of the material caused due to the temperature rise applied externally.
Taguchi has created a transformation of the repetition data to another value which is a response measure of the variation present which is known as signal-to-noise ratio(S/N) presented in Table 3.

Adding of the alloying components leads to reduction of plasticity of alloys.
The obtained data indicate the reduction of resistance to fragile destruction at increase of tin proportion in bronze.

The drilling hole and adit data show the average thickness of the deformation body is 41m, the maximum thickness is 66m and the total volume is 220×104m3.
Based on strength reduction method, the slope stability safety factors are calculated under natural condition, flood condition and earthquake condition.
Based on strength reduction method, the slope stability safety factors are calculated under natural condition, flood condition and earthquake condition.

In this case, along with the deformation in the longitudinal direction, which is characteristic for rolling on thick-sheet and wide-strip mills, there are conditions for deformation of the metal in the transverse direction, which has a positive effect on the reduction of anisotropy of properties.
Rolling in the relief rolls with the unequal relation of the protrusion to the depression was carried out in five passes with a reduction in each pass ∆h=0.6 mm.
Table 1 – Hardness values of samples of brass B63 Material Treatment Vickers hardness, HV Brass B63 Annealing 87,25 Rolling in smooth rolls 172,54 Rolling in relief rolls 193,16 Conclusions The combined analysis of new and previously obtained data demonstrates the advantage of the relief rolls before smooth in terms of obtaining isotropic grain structure of rolled metal, and hence that the quality of rolled plates is increased.

Table 2: Welding parameters and tool data for the investigated specimens Rotation velocity [min-1] Feed [mm/min] Tool shoulder [mm] Pin diameter [mm] 1000 120 10 2 1500 120 10 2 2000 120 10 2 Results and discussion The investigated alloys AZ91, AE42 and QE22 exhibit a very large grain size in the as-cast state, d ~ 200 μm, 150 μm and 100 μm for AZ91, QE22 and AE42, respectively.
The transformation of samples after annealing at of 250 °C leads to a reduction of the grain size and thus the mean particle size is 18.8 µm.
As shown in Figs. 3b-d, the aging between homogenization and extrusion leads to further grain size reduction in the extruded material.

The Q-value was calculated using the following equation (1) [4]: Q= RQDJn × JrJa × JwSRF (1) where RQD = value of Rock Quality Designation; Jn = amount of discontinuity set; Jr = roughness of the discontinuity surface; Ja = the weathering and filling level of the discontinuity surface; Jw = the pressure and water inflow; SRF = stress reduction factor.
On the other hand, one of the advantages of the Q-system is the rock mass classification includes the SRF (stress reduction factor) parameter, which considers the characteristics of particular zones [1].
The authors would like to thank the Ciliwung Cisadane River Basin Organization for the permission to do research and publish the site investigation data.