What is the difference between die casting& plastic injection moulding?
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- Issue Time
- 06-29-2017
Plastic Injection Molding and aluminum die casting are similar in a lot of ways:
Advantages
Disadvantages
- Both require a mold or tool to produce parts.
- The tooling cost is very similar in both industries.
- Both processes inject material into a mold to make parts.
- Both processes can make hundreds or thousands of parts every day.
Advantages
- Plastic parts are produced at a lower temperature than aluminum parts, plastic melts at only a few hundred degrees Fahrenheit
- Plastic Parts weigh less than aluminum die casting parts.
- Plastic is not typically biodegradable
- Plastic parts require metal inserts to hold a thread for screws.
- Plastic does not block EMI/RF waves
- Plastic Parts are not as strong.
Disadvantages
- Aluminum parts weigh more than plastic.
- Aluminum parts are produced in only one color and need paint or powder coat for color.
- Aluminum naturally shieds EMI/RF waves.
- Holes can be directly threaded into the parts.
- Features can be machined into aluminum.
- Aluminum has great thermal transference properties.
- Aluminum is a natural conductor of electricity.
- Aluminum material is environmentally friendly and can be recycled easily when done.
- All aluminum alloys (360, 380, 383, and 413) are made from recycled materials.
- Aluminum parts are stronger than plastic
