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Machining operation is affected by some factors, either positively or negatively such as coolant, tool geometry, type of tool, tool angle, depth of cut, cutting speed, size chip, cutting rate, type workpiece, etc. This experiment was designed to turn five pieces of mild steels rod of 22mm in diameter to a diameter of 20mm as the targeted final diameter of each work piece. The parameters used for the experiment were coolant, depth of cut, feed rate, and cutting speed, the outcome to be tested were dimensional accuracy. Two values were assigned to each of the parameters except coolant which was maintained at 15cl throughout the experiment and cutting speed has four values. A 2 k factorial design with 5 parameters was adopted, of which some of the factors affected the dimensional accuracy seriously. Comparing the tabulated value of f o with the calculated values it was find out that f 0.01, 1, 32 = 7.50. So it mean that the H o hypothesis is rejected in the case of B,

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It is needed to establish a design capacity curve of beams/columns with RC standing, hanging and wing walls for utilizing such walls as structural members in RC buildings in Japan. This paper presents the results of static loading tests on RC beam-column sub-assemblages with such walls, which were conducted to evaluate their strength, ductility, stiffness and damage. The flexural yield strength of beams with the walls can be well estimated by a flexural analysis assuming the plane section remain plane. The flexural ultimate strength can be accurately estimated at the full plastic moment. The proposed method, which is a modification of a practical design method in a distance from the centre of tensile reinforcements to the extreme compression fibre, can evaluate the secant stiffness at the yield point more precisely than the practical design method.

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