Why do the cross-sectional shapes of the die orifice and the final (cooled) extruded part sometimes differ?
What will be an ideal response?
The polymer material flows unevenly through thick and thin sections. Therefore, if a sharp corner is cut in the orifice, the corner will restrict the flow and the part will have a rounded corner. To obtain a part with a sharp corner, the orifice should have some restriction in the flow of the middle of the part that will push the flow to the corner relatively.
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Assess America's role in Vietnam in the 1960s. Consider, for example, Diem's assassination, the Gulf of Tonkin Resolution, the policy of gradual escalation, and the bombing campaign.
What will be an ideal response?
Marine sediments are typical parent materials in coastal plain areas
Indicate whether the statement is true or false
The Ethernet protocol used in LAN networks is significantly different from the Ethernet protocol used in WAN networks
Indicate whether the statement is true or false
Tasks that are repetitive in nature fall under which of the following Ds of robotics?
A. Dull B. Dirty C. Difficult D. Dangerous