Download Advances in Material Forming and Joining: 5th International by R. Ganesh Narayanan, Uday Shanker Dixit PDF

By R. Ganesh Narayanan, Uday Shanker Dixit

This edited booklet comprises prolonged examine papers from AIMTDR 2014. This contains fresh study paintings within the fields of friction stir welding, sheet forming, becoming a member of and forming, modeling and simulation, effective prediction techniques, micro-manufacturing, sustainable and eco-friendly production concerns and so on. it will end up beneficial to scholars, researchers and practitioners within the box of fabrics forming and manufacturing.

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Extra info for Advances in Material Forming and Joining: 5th International and 26th All India Manufacturing Technology, Design and Research Conference, AIMTDR 2014

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The process can be used for larger forming angles with proper forming methodology. The laboratory setup of single-point ISF machine has been developed using motion card to control the 3 servo motors giving 46 Y. Kumar and S. Kumar capability of individual 3-axis controlling. The defect-free products of brass, aluminum, and titanium have been produced using the ISF. The strain distribution over the length of deformation has been computed, and it has been found to be distributed over the length of the deformation.

34 1 925 Shang et al. (2012) Copper Aluminum alloy AI6061-T6 293 18 V. Yadav et al. Table 3 Thermal properties of work material Heat capacity (J/kgK) Heat transfer coefficient of air (W/mK2) References 43 470 10 Yadav et al. (2011a) 8960 400 385 10 Zhang et al. (2011) 2700 237 900 8 Yadav et al. (2011a) Material Density (kg/m3) Steel (AISI 4140) 7800 Copper Aluminum alloy Thermal conductivity (W/mK) of strip, percentage reduction, and exit velocity of strip. Forward slip is recorded. The mechanical properties are obtained by the inverse analysis using the thermal properties of material as given in Table 3.

26 V. Yadav et al. Appendix Estimation of Temperature Distribution in the Strip at Exit Side The temperature distribution of strip at the exit side is obtained as (Kim et al. 2009) 0 À Á1 R h2  ks 2 @4kn 02 T ðy; 0Þcosðkn yÞdy À 4T0 sin kn h22 A cosðkn yÞ; Te ðy; tÞ ¼ T0 þ exp À k t qcp n kn h2 þ sinðkn h2 Þ n¼1 1 X  ð27Þ where T(y, 0) is the temperature at the exit of deformation zone that corresponds to time t = 0, T0 is the temperature of the coolant, ha is the convective heat transfer coefficient at the strip surface, ks is the thermal conductivity of strip, ρ is the density of strip, cp is the specific heat, and λn are obtained by solving the following equation:     h2 h2 ks kn sin kn À ha cos kn ¼ 0: 2 2 ð28Þ The temperature below the sensor is obtained by substituting y¼ h2 2 and t¼ distance from the exit of roll bite to sensor exit velocity of the strip ð29Þ in Eq.

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