Plasticine, the most widely used soft modeling material, has
been successfully used as a convenient model material to simulate
the plastic deformation of metals as observed in many MFP
for the last 40–50 years [5–9]. It is commercially available in
various colors leading to different overall composition of each
color from that of other ones. Therefore, one can expect some
variations in the mechanical behavior of plasticine from one
color to another and different colors of plasticine were referred
as different types of material [10]. Although some research has
been done in order to determine flowcharacteristics of plasticine
[11–12], interactions among process parameters such as deformation
speed, lubrication, and material type were not taken into
account to show its effectiveness in providing qualitative data
regarding its flow behavior.
Plasticine, the most widely used soft modeling material, hasbeen successfully used as a convenient model material to simulatethe plastic deformation of metals as observed in many MFPfor the last 40–50 years [5–9]. It is commercially available invarious colors leading to different overall composition of eachcolor from that of other ones. Therefore, one can expect somevariations in the mechanical behavior of plasticine from onecolor to another and different colors of plasticine were referredas different types of material [10]. Although some research hasbeen done in order to determine flowcharacteristics of plasticine[11–12], interactions among process parameters such as deformationspeed, lubrication, and material type were not taken intoaccount to show its effectiveness in providing qualitative dataregarding its flow behavior.
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