� Notes

Slide Show

Outline

1	Plastics and Injection Molding
2	Plastics
3	Variety of Plastics & Plastics Processes
4	Reaction Injection Molding
5	Blow Molding, Bottles
6	Blow Molding, Plastic Bags
7	Calendaring
8	Rotation Molding
9	Thermoforming
10	Compression Molding
11	Transfer Molding
12	Casting
13	Injection Molding
14	Injection Mold Layout
15	Plunger Type Injection Molding Press
16	Screw Type Injection Presses
17	Injection Molding Screws
18	Screw Modifications
19	Barrier Flight Screws
20	Press Parameters
21	Common Shaping Processes for Thermoplastics
22	Common Shaping Processes for Thermosets
23	Clamping Mechanisms
24	Injection Molding Defects
25	Short Shot
26	Flash
27	Weld Lines
28	Jetting
29	Ejector Pin Marks
30	Sink Marks
31	Warpage/Residual Stresses
32	Warpage Defects
33	Gate, Sprue, and Runner System
34	Runner Design
35	Runner Cross Sections
36	Gate Design
37	Venting
38	Runner & Gate Sizing �Classic Method�
39	Estimating Pressure Drop
40	Viscosity in Non-Newtonian Fluids
41	Determining the Viscosity
42	Tables of Mass Flow Index
43	Tables of Mass Flow Index
44	Some Plots of Viscosity
45	Some Plots of Viscosity
46	Some Plots of Viscosity
47	Approximating Curves of� h vs g
48	Additional Geometries
49	Example:� Iterative Mold Layout
50	Example:� Determining Flow
51	Example:� Determining Shear Flow Rate
52	Example:� Determining Viscosity
53	Example:� Estimating Pressure Drop
54	Example:� More Pressure Drops
55	Example:� Iterate to Get Similar Drops
56	Runner Sizing- Bryce�s Method
57	Gate Sizing- Bryce�s Method
58	Vent Sizing & Position- Bryce�s Method
59	Mold Design Example
60	Example- Runner Design
61	Example- Upstream Runners
62	Example- Gates
63	Example- Vents
64	Estimating Clamping Force
65	Example- Clamping Force