Types of Pattern and Color Coding
Types of Pattern
| Type |
|---|
| Single piece pattern |
| Split pattern |
| Match plate pattern |
| Cope and drag pattern |
| Gated pattern |
| Loose piece pattern |
| Sweep pattern |
| Skeleton pattern |
| Segmental pattern |
| Shell pattern |
| Built up pattern |
| Boxed up pattern |
| Lagged up pattern |
| Left and right hand pattern |
Importance of Color Coding
| Color | Purpose |
|---|---|
| Red | Surfaces to be machined |
| Black | Surfaces to be left unmachined |
| Yellow | Core Prints |
| Seats for loose pieces | |
| Stop offs | |
| Parting surface (Clear or No color) |
Examples
| Example | Pattern Making Process |
|---|---|
| Credit Card | Plastic compounding and molding, Printing, Lamination, Cutting |
| Carrying case | Injection molding |
| Hollow cylinder | Extrusion |
| Knobs | Compression molding |
Labels:
Manufacturing processes