Analysis of bolt position model as support for increasing tensile strength of connection combination direction of weld plate st42

The research objective to be achieved is to know the effect of the model position of (2, 3, 4) bolts to support the increased tensile strength of welded connection direction of transverse, longitudinal and combination direction (transversal + longitudinal) with strong currents 120Ampere.Method used is formed specimens of welded connections (longitudinal and transverse) with types of models bolt position. The manufacturing process produced a connection position 2 bolts model (Horizontal, Vertical, Leaning A and Leaning B), and the position of 3 bolts with the model (ΔA, ΔB, ΔC and ΔD) and position 4 bolts with the model (Square, rhombus, parallelogram A and parallelogram B). The process of testing the tensile test produced output value of load, extension, maximum tensile and maximum tensile strain with the best models bolt position. Tensile test results showed the highest maximum tensile strength at position 2 bolts occurred on slant model B of and position for 3 bolts occurred in triangular model A (ΔA) of and for the 4-position bolts occurred in the model of parallelogram B with weld directions combination . Position 4 bolts models of parallelogram B in combination connection of welding direction (transversal + longitudinal) with a current strength of 120 Ampere showed the highest value of the maximum tensile strength of tensile test result and the best model of bolts position.