MN 242 - Applied Injection Molding

1. Develop an Injection process to include Fill, Pack, and Hold.
2. Install a new mold and create a molding process with acceptable quality parts.
3. Compare and contrast issues developed within a molding process.
4. Demonstrate the ability to setup peripheral equipment used for controlling injection molding processes.
5. Create a written summary of the main ideas extracted from information gathered. 
6. Create and/or organize data and information into meaningful patterns in order to interpret and draw inferences from it. 

A.  Safety procedures

B.  Machine cycle

C.  Machine logic

D.  Molding problem

II.  Mold installation

A.  Hydraulic clamp machines

B.  Toggle clamp machines

C.  Electric clamp machines

III.  Machine set-up

A.  Shot size

B.  Injection speed and pressure

C.  Packing and holding

D.  Transfer types and settings

1.  Position

2.  Hydraulic

3.  Cavity

4.  Time

E.  Extrude speeds and back pressure

F.  Melt decompression

G.  Ejection

H.  Mold protect

IV.  Mold cavity pressure transducers

V.  Common injection molding practices

A.  Weld and meld lines

B.  Large and small gates

C.  Thick and thin parts

D.  Gate seal times

E.  Medical device clarity standards

F.  Dimensional control within tolerances given

G.  Stress analyzes to visual standards and optical standards

E.  Regrind

F.  Optimum cycle times

H.  Part weight

VI.  Injection velocity to material viscosity relationships

A.  Voids and sinks

VII.  Peripherals

A.  Loader operation

B.  Mold temperature controller operation

C.  Chiller operation

D.  Dryer operation

E.  Cavity pressure monitoring

F.  Effects of regrind

Labs 1-9 in Lab Packet with additional 9 labs selected by student