This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What process parameters affect the part quality the most? Discuss 2 or 3 of these parameters and ... (Read 51 times)

Bernana

  • Hero Member
  • *****
  • Posts: 530
on: Aug 19, 2018
What process parameters affect the part quality the most? Discuss 2 or 3 of these parameters and their specific effects on part quality. Which is the most important for cycle time?
 
  What will be an ideal response?

Question 2

You are asked to specify the material for an extremely large part. The boss says he wants a high MI material. Why would this be beneficial, and what effect would the choice have on material properties? (Density, impact resistance, tensile and flexural properties, etc.)
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

raili21

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Aug 19, 2018
Answer to Question 1

Some of these parameters could be temperature of melt, temperature of mold, pressure of injection and holding, injection or fill-rate and time, dwell time, freeze time, ejection time, etc. The cooling time is the most important for cycle time in injection molding.

Answer to Question 2

The higher the MI the more material will be extruded faster in order to create the really large part. The properties of such a material would result in a part that would have a higher impact resistance because of its higher tensile strength. These characteristics would also assume that the material would have greater flexural properties and lower crystallinity.


Bernana

  • Member
  • Posts: 530
Reply 2 on: Aug 19, 2018
Great answer, keep it coming :)

cpetit11

  • Member
  • Posts: 321
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

A fuel heater is part of the fuel filter and water separator located on the frame rail of a Ford ... A fuel heater is part of the fuel filter and water separator located on the frame rail of a Ford ...
Using a scan tool to check for IAC counts or percentage as part of a diagnostic routine. Using a scan tool to check for IAC counts or percentage as part of a diagnostic routine.
How to integrate by parts (Part 1) How to integrate by parts (Part 1)
How much the temperature will rise depends on many factors that affect the level of GHG emission How much the temperature will rise depends on many factors that affect the level of GHG emission
Plot of land (Part b) Plot of land (Part b)
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library