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The flow of material in die cavity solely depends on the flow-ability of material.(a) True(b) FalseThe question was posed to me during an online exam.The doubt is from Friction and Lubrication in Metal Forming topic in division Types of Die & Metal Forming Processes of Casting-Forming-Welding II

Answer»

Right CHOICE is (b) False

Easiest explanation: The flow of material in die cavity not only depends on the flow-ability of material, it also depends on the frictional conditions at the die and material interface. Therefore, a PROPER study of parameters that AFFECT the friction is required for SELECTING suitable lubricants for the OPERATION and producing better quality of metal parts.



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