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MJF 3D PRINTING
The second half of the debate is MJF (HP multi jet fusion) 3D printing. In general 3D printing was used for prototyping and
product development, but with MJF technology it has evolved, it became an excellent solution for various fill-scale
manufacturing projects as well.
Unlike injection molding, MJF 3D printing doesn’t require additional set up costs or tooling, making it faster and a less
expensive resource for small to medium project units.
Furthermore it gives an almost absolute freedom of design and it boosts the time to market.
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Almost total freedom of design
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Time to market greatly improved
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Extreme customization possible
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Zero start-up costs
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Economic advantage in many cases, why?
1.
Unique parts instead of separate parts for the
same object
2.
A new version of the part can be made without
additional costs
3.
The breakeven point can be very surprising
Time to Market:
MJF 3D printing is the answer
Time to market can be a decisive competitive advantage in a historical moment when
the average life of products is reduced and the end user is sensitive to delivery
times. Take a look at this comparison chart:
OPTIMIZATION:
The final design optimization for 3D printing is maintaining the third dimension and combining parts.
When a mechanical designer takes a system function and breaks this into parts that can be easily Injection Molded, the resulting parts are largely
2.5-dimensional, meaning that they tend to have two larger dimensions and one smaller dimension.
This is because molds must open and close easily. If you intend to 3D print the parts, the parts can remain integrated, and then the breakeven curve
becomes a comparison of one part versus several parts from several molds.
Injection molding > MJF 3D printing
Conclusion:
let's keep it short
In choosing which process to use for final part manufacturing of a specific part, it’s important to consider which may be the least expensive
combination of process and material that meets the design requirements.