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.

Trades & Technology

You might also like to view...

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?

Trades & Technology

Marine sediments are typical parent materials in coastal plain areas

Indicate whether the statement is true or false

Trades & Technology

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

Trades & Technology

Tasks that are repetitive in nature fall under which of the following Ds of robotics?

A. Dull B. Dirty C. Difficult D. Dangerous

Trades & Technology