Design And Fabrication Of A Prototype Press Tool For The Manufacture Of An Item Of Cutlery

SUMMARY

Metal forming is a production technique which enhances economic use of engineering material by minimizing metal wastage that occurs in machining processes such as lathe turning and milling. This technique employs a press tool for mass production of parts that are dimensionally compatible. The press tool comprises the section that provides the force the press, and the tooling section the die.

Investigation of stretch-forming conditions to produce a si dome in order to determine the optimum condition of punch nose radius, die corner radius and punch travel for acceptable stretch-forming operations is presented. The criterion for acceptability is absence of wrinkles, tear, or excessive stretching on the dome formed. The relationship between the optimum punch travel and the punch nose radius for any die corner radius is established.