Linear Cites Laser-Sintering Savings







Linear Documents costs, times for laser-sintering vs. traditional machining
Data reveal dramatic savings with direct metal laser sintering (DMLS) for tooling, mold inserts.

Novi, MI, September 4, 2008 — EOS GmbH Electro Optical Systems, the worldwide leading manufacturer of laser-sintering systems, today announced the results of data gathered by Linear Mold & Engineering (Livonia, MI) comparing manufacturing times for creating molds and mold inserts in Direct Metal Laser-Sintering (DMLS) against traditional machining processes. The data were assembled during two-and-a-half years of costing out more than 50 commercial tool and mold projects across a wide variety of industries. The results demonstrate that, for many applications, DMLS significantly reduces production times and therefore costs. Cost savings using DMLS range between 15 and 30 percent, depending on the complexity of the part.

 Because Linear has longstanding experience with machining, CNC tooling, EDM, and other tool and mold making processes, the company has a library of benchmark figures for how long different projects will take using these methods. Over the past three years, Linear has manufactured molds and inserts in Cobalt Chrome,  GP1 (17-4) stainless steel, and DirectMetal-20 using DMLS. Below are examples of some typical moldmaking projects, showing estimated production times for machining versus the actual time for DMLS:



Estimated total mold time using traditional manufacturing methods

Actual total mold time with DMLS inserts

Single-cavity tool inserts

210 hours

80.5 hours EOS build time plus 16 hours of mold Assembly time

Single-cavity aluminum MUD injection mold tool

4 weeks


6 days 1st shots

Prototype tool for visor clip

4 weeks


8 days

Four-cavity family mold inserts

5 weeks

3 weeks


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